IP Library › Granted Patent US 12,320,587
Granted Patent B2
US 12,320,587 · App. 17/393,477 · Granted Jun 3, 2025

Phase implementation of natural gas liquid recovery plants

Inventor: John Mak (Santa Ana, CA)
Assignee: Fluor Technologies Corporation
F25J3/0238F25J3/0209F25J3/0233F25J3/0242F25J2200/04F25J2200/70F25J2200/78F25J2205/04F25J2205/50F25J2210/06F25J2215/04F25J2215/62F25J2215/64F25J2240/02F25J2240/40F25J2270/02F25J2270/08F25J2270/12F25J2270/60F25J2280/02
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Quick Facts
Patent No.
US 12,320,587
App. No.
17/393,477
Granted
Jun 3, 2025
Kind
B2
Abstract

Embodiments relate generally to systems and methods for operating a natural gas liquids plant in ethane rejection and in ethane recovery. A natural gas liquid plant may comprise an absorber configured to produce an ethane rich bottom stream and an ethane depleted vapor stream; a stripper fluidly coupled to the absorber configured to, during ethane rejection, fractionate the ethane rich bottom stream from the absorber into an ethane overhead product and a propane plus hydrocarbons product, and configured to, during ethane recovery, fractionate the ethane rich bottom stream into an ethane plus NGL stream and an overhead vapor stream; and an exchanger configured to, during ethane recovery, counter-currently contact the ethane rich bottom stream from the absorber with the ethane depleted vapor stream from the absorber, thereby heating the vapor stream and chilling the ethane rich bottom stream before the ethane rich bottom stream is fed to the stripper.

Claims (46)

1. A natural gas liquid plant configured to operate in either an ethane rejection mode or an ethane recovery mode, the plant comprising:

an absorber;

a stripper;

a feed exchanger;

an expander; and

one or more separators;

a plurality of associated connections, wherein each of the plurality of the associated connections is configured to provide a route of fluid communication between two or more of the absorber, the stripper, the feed exchanger, the expander, and the one or more separators;

wherein in the ethane rejection mode:

the plurality of the associated connections is configured such that a first portion of a feed stream forms a first stripper feed stream that is passed from the one or more separators to the stripper;

the plurality of the associated connections is configured such that a second portion of the feed stream forms a first absorber feed stream that is passed from the one or more separators to the absorber;

the absorber is configured to produce an absorber bottom stream and an absorber overhead stream, wherein the absorber overhead stream forms a residue gas;

the plurality of the associated connections is configured such that the absorber bottom stream is passed from the absorber to the feed exchanger;

the stripper is configured to produce a stripper bottom natural gas liquid product stream and a stripper overhead stream;

the plurality of the associated connections is configured such that the stripper overhead stream is passed from the stripper to the feed exchanger, and the feed exchanger receives the stripper overhead stream and chills the stripper overhead stream;

the plurality of the associated connections is configured such that the feed exchanger receives the absorber bottom stream and chills the absorber bottom stream;

the plurality of the associated connections is configured such that the absorber bottom stream is passed from the feed exchanger to the stripper; and

the plurality of the associated connections is configured such that the stripper overhead stream is passed from the feed exchanger to the absorber as a second absorber feed stream; and

wherein in the ethane recovery mode:

the plurality of the associated connections is configured such that the first portion of the feed stream forms the first stripper feed stream that is passed to the stripper;

the plurality of the associated connections is configured such that the second portion of the feed stream forms the first absorber feed stream that is passed to the absorber;

the plurality of the associated connections is configured such that a third portion of the feed stream is passed to the expander;

the expander is configured to expand the third portion of the feed stream;

the plurality of the associated connections is configured such that the third portion of the feed stream forms a second absorber stream that is passed from the expander to the absorber;

the absorber is configured to produce the absorber bottom stream and the absorber overhead stream, wherein the absorber overhead stream forms the residue gas;

the plurality of the associated connections is configured such that the absorber bottom stream is passed from the absorber to the stripper;

the stripper is configured to produce the stripper bottom natural gas liquid product stream and the stripper overhead stream;

the plurality of the associated connections is configured such that the stripper overhead stream is passed from the stripper to the absorber; and

the plurality of the associated connections is configured such that the feed exchanger receives the second portion of the feed stream and chills the second portion of the feed stream, and such that the second portion of the feed stream is passed from the feed exchanger to the absorber.

2. The plant of claim 1 , further comprising:

a second exchanger, wherein the second exchanger is configured, in the ethane recovery mode, to receive the absorber bottom stream and chill the absorber bottom stream.

3. The plant of claim 1 , wherein, in the ethane rejection mode, the plurality of the associated connections is configured such that the first portion of the feed stream is passed from the one or more separators to a mid-section of the stripper.

4. The plant of claim 1 , wherein, in the ethane rejection mode, the plurality of the associated connections is configured such that the absorber bottom stream forms a stripper reflux stream that is passed from the feed exchanger to the stripper.

5. The plant of claim 1 , further comprising a Joule Thompson valve, wherein, in the ethane rejection mode:

the plurality of the associated connections is configured such that the stripper overhead stream is received by the Joule Thompson valve from the feed exchanger;

the Joule Thompson valve is configured to reduce a pressure of the stripper overhead stream to form the second absorber feed stream; and

the plurality of the associated connections is configured such that the second absorber feed stream is passed from the Joule Thompson valve to the absorber.

6. The plant of claim 5 , further comprising a second Joule Thompson valve, wherein, in the ethane rejection mode:

the plurality of the associated connections is configured such that the first absorber feed stream is received by the second Joule Thompson valve;

the second Joule Thompson valve is configured to reduce a pressure of the first absorber feed stream; and

the plurality of the associated connections is configured such that the first absorber feed stream is passed from the second Joule Thompson valve to the absorber.

7. The plant of claim 1 , wherein, in the ethane rejection mode, the second absorber feed stream enters the absorber above the first absorber feed stream.

8. The plant of claim 1 , further comprising a Joule Thompson valve, wherein, in the ethane recovery mode:

the plurality of the associated connections is configured such that the first absorber feed stream is received by the Joule Thompson valve;

the Joule Thompson valve is configured to reduce a pressure of the first absorber feed stream, and

the plurality of the associated connections is configured such that the first absorber feed stream is passed from the Joule Thompson valve to the absorber.

9. The plant of claim 1 , wherein the plant is configured to recover at least 95% propane in the ethane rejection mode and the ethane recovery mode.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 4, 2021
From: MAK, JOHN
To: FLUOR TECHNOLOGIES CORPORATION
Reel/Frame 057079/0849 →
Continuity (2)
Division 15789463 · Oct 20, 2017
Related Publication 20210381760A1 · Dec 9, 2021
References Cited (400)
US 2603310A · Gilmore · 1952 [cited by applicant]
US 2771149A · Miller · 1956 [cited by applicant]
US 3320754A · Tucker · 1967 [cited by applicant]
US 3421610A · Marshall · 1969 [cited by applicant]
US 3421984A · Jensen · 1969 [cited by applicant]
US 3793157A · Hobbs et al. · 1974 [cited by applicant]
US 4004430A · Solomon et al. · 1977 [cited by applicant]
US 4061481A · Campbell et al. · 1977 [cited by applicant]
US 4102659A · Martin · 1978 [cited by applicant]
US 4157904A · Campbell · 1979 [cited by applicant]
US 4164452A · Funk et al. · 1979 [cited by applicant]
US 4203742A · Agnihotri · 1980 [cited by applicant]
US 4278457A · Campbell et al. · 1981 [cited by applicant]
US 4453958A · Gulsby et al. · 1984 [cited by applicant]
US 4474591A · Arand et al. · 1984 [cited by applicant]
US 4496380A · Harryman · 1985 [cited by applicant]
US 4507133A · Khan et al. · 1985 [cited by applicant]
US 4509967A · Sweet · 1985 [cited by applicant]
US 4519824A · Huebel · 1985 [cited by applicant]
US 4617039A · Buck · 1986 [cited by applicant]
US 4657571A · Gazzi · 1987 [cited by applicant]
US 4676812A · Kummann · 1987 [cited by applicant]
US 4695349A · Becker et al. · 1987 [cited by applicant]
US 4854955A · Campbell et al. · 1989 [cited by applicant]
US 4895584A · Buck et al. · 1990 [cited by applicant]
US RE33408E · Khan et al. · 1990 [cited by applicant]
US 5220797A · Krishnamurthy et al. · 1993 [cited by applicant]
US 5291736A · Paradowski · 1994 [cited by applicant]
US 5462583A · Wood et al. · 1995 [cited by applicant]
US 5555748A · Campbell et al. · 1996 [cited by applicant]
US 5657643A · Price · 1997 [cited by applicant]
US 5669238A · Devers · 1997 [cited by applicant]
US 5685170A · Sorensen · 1997 [cited by applicant]
US 5687584A · Mehra · 1997 [cited by applicant]
US 5746066A · Manley · 1998 [cited by applicant]
US 5771712A · Campbell et al. · 1998 [cited by applicant]
US 5881569A · Campbell et al. · 1999 [cited by applicant]
US 5890377A · Foglietta · 1999 [cited by applicant]
US 5890378A · Rambo et al. · 1999 [cited by applicant]
US 5953935A · Sorensen · 1999 [cited by applicant]
US 5983664A · Campbell et al. · 1999 [cited by applicant]
US 5992175A · Yao et al. · 1999 [cited by applicant]
US 6006546A · Espie · 1999 [cited by applicant]
US 6112549A · Yao et al. · 2000 [cited by applicant]
US 6116050A · Yao et al. · 2000 [cited by applicant]
US 6116051A · Agrawal et al. · 2000 [cited by applicant]
US 6125653A · Shu et al. · 2000 [cited by applicant]
US 6182469B1 · Campbell et al. · 2001 [cited by applicant]
US 6244070B1 · Lee et al. · 2001 [cited by applicant]
US 6308532B1 · Hopewell · 2001 [cited by applicant]
US 6311516B1 · Key et al. · 2001 [cited by applicant]
US 6336344B1 · OBrien · 2002 [cited by applicant]
US 6354105B1 · Lee et al. · 2002 [cited by applicant]
US 6363744B2 · Finn et al. · 2002 [cited by applicant]
US 6368385B1 · Paradowski · 2002 [cited by applicant]
US 6401486B1 · Lee et al. · 2002 [cited by applicant]
US 6405561B1 · Mortko et al. · 2002 [cited by applicant]
US 6453698B2 · Jain et al. · 2002 [cited by applicant]
US 6516631B1 · Trebble · 2003 [cited by applicant]
US 6601406B1 · Deng et al. · 2003 [cited by applicant]
US 6658893B1 · Mealey · 2003 [cited by applicant]
US 6712880B2 · Foglietta et al. · 2004 [cited by applicant]
US 6755965B2 · Pironti et al. · 2004 [cited by applicant]
US 6823692B1 · Patel et al. · 2004 [cited by applicant]
US 6837070B2 · Mak · 2005 [cited by applicant]
US 6915662B2 · Wilkinson et al. · 2005 [cited by applicant]
US 7051552B2 · Mak · 2006 [cited by applicant]
US 7051553B2 · Mak et al. · 2006 [cited by applicant]
US 7069744B2 · Patel et al. · 2006 [cited by applicant]
US 7073350B2 · Mak · 2006 [cited by applicant]
US 7107788B2 · Patel et al. · 2006 [cited by applicant]
US 7159417B2 · Foglietta et al. · 2007 [cited by applicant]
US 7192468B2 · Mak et al. · 2007 [cited by applicant]
US 7216507B2 · Cuellar et al. · 2007 [cited by applicant]
US 7219513B1 · Mostafa · 2007 [cited by applicant]
US 7377127B2 · Mak · 2008 [cited by applicant]
US 7424808B2 · Mak · 2008 [cited by applicant]
US 7437891B2 · Reyneke et al. · 2008 [cited by applicant]
US 7574856B2 · Mak · 2009 [cited by applicant]
US 7597746B2 · Mak et al. · 2009 [cited by applicant]
US 7600396B2 · Mak · 2009 [cited by applicant]
US 7635408B2 · Mak et al. · 2009 [cited by applicant]
US 7637987B2 · Mak · 2009 [cited by applicant]
US 7674444B2 · Mak · 2010 [cited by applicant]
US 7713497B2 · Mak · 2010 [cited by applicant]
US 7856847B2 · Patel et al. · 2010 [cited by applicant]
US 7856848B2 · Lu · 2010 [cited by applicant]
US 8110023B2 · Mak et al. · 2012 [cited by applicant]
US 8117852B2 · Mak · 2012 [cited by applicant]
US 8142648B2 · Mak · 2012 [cited by applicant]
US 8147787B2 · Mak et al. · 2012 [cited by applicant]
US 8192588B2 · Mak · 2012 [cited by applicant]
US 8196413B2 · Mak · 2012 [cited by applicant]
US 8209996B2 · Mak · 2012 [cited by applicant]
US 8316665B2 · Mak · 2012 [cited by applicant]
US 8377403B2 · Mak · 2013 [cited by applicant]
US 8398748B2 · Mak · 2013 [cited by applicant]
US 8434325B2 · Martinez et al. · 2013 [cited by applicant]
US 8480982B2 · Mak · 2013 [cited by applicant]
US 8505312B2 · Mak et al. · 2013 [cited by applicant]
US 8528361B2 · Nanda et al. · 2013 [cited by applicant]
US 8567213B2 · Mak · 2013 [cited by applicant]
US 8635885B2 · Mak · 2014 [cited by applicant]
US 8661820B2 · Mak · 2014 [cited by applicant]
US 8677780B2 · Mak · 2014 [cited by applicant]
US 8695376B2 · Mak · 2014 [cited by applicant]
US 8696798B2 · Mak · 2014 [cited by applicant]
US 8840707B2 · Mak · 2014 [cited by applicant]
US 8845788B2 · Mak · 2014 [cited by applicant]
US 8850849B2 · Martinez et al. · 2014 [cited by applicant]
US 8876951B2 · Mak · 2014 [cited by applicant]
US 8893515B2 · Mak · 2014 [cited by applicant]
US 8910495B2 · Mak · 2014 [cited by applicant]
US 8919148B2 · Wilkinson et al. · 2014 [cited by applicant]
US 8950196B2 · Mak · 2015 [cited by applicant]
US 9103585B2 · Mak · 2015 [cited by applicant]
US 9114351B2 · Mak · 2015 [cited by applicant]
US 9132379B2 · Mak · 2015 [cited by applicant]
US 9248398B2 · Mak · 2016 [cited by applicant]
US 9423175B2 · Mak · 2016 [cited by applicant]
US 9557103B2 · Mak · 2017 [cited by applicant]
US 9631864B2 · Chen et al. · 2017 [cited by applicant]
US 10006701B2 · Mak · 2018 [cited by applicant]
US 10077938B2 · Mak · 2018 [cited by applicant]
US 10330382B2 · Mak et al. · 2019 [cited by applicant]
US 10451344B2 · Mak · 2019 [cited by applicant]
US 10704832B2 · Mak · 2020 [cited by applicant]
US 10760851B2 · Thiebault et al. · 2020 [cited by applicant]
US 11112175B2 · Mak · 2021 [cited by applicant]
US 11365933B2 · Mak et al. · 2022 [cited by applicant]
US 11725879B2 · Mak · 2023 [cited by applicant]
US 20020042550A1 · Pironti et al. · 2002 [cited by applicant]
US 20020157538A1 · Foglietta et al. · 2002 [cited by applicant]
US 20030005722A1 · Wilkinson · 2003 [cited by applicant]
US 20030089126A1 · Stringer · 2003 [cited by applicant]
US 20040079107A1 · Wilkinson et al. · 2004 [cited by applicant]
US 20040148964A1 · Patel et al. · 2004 [cited by applicant]
US 20040159122A1 · Patel et al. · 2004 [cited by applicant]
US 20040172967A1 · Patel et al. · 2004 [cited by applicant]
US 20040206112A1 · Mak · 2004 [cited by applicant]
US 20040237580A1 · Mak · 2004 [cited by applicant]
US 20040250569A1 · Mak · 2004 [cited by applicant]
US 20040261452A1 · Mak et al. · 2004 [cited by applicant]
US 20050047995A1 · Wylie · 2005 [cited by applicant]
US 20050201410A1 · Sekine · 2005 [cited by applicant]
US 20050218041A1 · Yoshida et al. · 2005 [cited by applicant]
US 20050247078A1 · Wilkinson et al. · 2005 [cited by applicant]
US 20050255012A1 · Mak · 2005 [cited by applicant]
US 20050268649A1 · Wilkinson et al. · 2005 [cited by applicant]
US 20060000234A1 · Cuellar et al. · 2006 [cited by applicant]
US 20060021379A1 · Ronczy · 2006 [cited by applicant]
US 20060032269A1 · Cuellar et al. · 2006 [cited by applicant]
US 20060221379A1 · Noda · 2006 [cited by applicant]
US 20060260355A1 · Roberts et al. · 2006 [cited by applicant]
US 20060277943A1 · Yokohata et al. · 2006 [cited by applicant]
US 20060283207A1 · Pitman et al. · 2006 [cited by applicant]
US 20070157663A1 · Mak et al. · 2007 [cited by applicant]
US 20070240450A1 · Mak · 2007 [cited by applicant]
US 20080016909A1 · Lu · 2008 [cited by applicant]
US 20080190136A1 · Pitman · 2008 [cited by applicant]
US 20080271480A1 · Mak · 2008 [cited by applicant]
US 20090100862A1 · Wilkinson et al. · 2009 [cited by applicant]
US 20090113931A1 · Patel et al. · 2009 [cited by applicant]
US 20090277217A1 · Ransbarger et al. · 2009 [cited by applicant]
US 20100000255A1 · Mak · 2010 [cited by applicant]
US 20100011809A1 · Mak · 2010 [cited by applicant]
US 20100011810A1 · Mak et al. · 2010 [cited by applicant]
US 20100043488A1 · Mak et al. · 2010 [cited by applicant]
US 20100126187A1 · Mak · 2010 [cited by applicant]
US 20100206003A1 · Mak · 2010 [cited by applicant]
US 20100275647A1 · Johnke et al. · 2010 [cited by applicant]
US 20100287984A1 · Johnke et al. · 2010 [cited by applicant]
US 20110067442A1 · Martinez et al. · 2011 [cited by applicant]
US 20110067443A1 · Martinez et al. · 2011 [cited by applicant]
US 20110174017A1 · Victory et al. · 2011 [cited by applicant]
US 20110226014A1 · Johnke et al. · 2011 [cited by applicant]
US 20110265511A1 · Fischer et al. · 2011 [cited by applicant]
US 20120000245A1 · Currence et al. · 2012 [cited by applicant]
US 20120036890A1 · Kimble et al. · 2012 [cited by applicant]
US 20120085127A1 · Nanda et al. · 2012 [cited by applicant]
US 20120096896A1 · Patel et al. · 2012 [cited by applicant]
US 20120137726A1 · Currence et al. · 2012 [cited by applicant]
US 20130014390A1 · Mak · 2013 [cited by applicant]
US 20130061632A1 · Brostow et al. · 2013 [cited by applicant]
US 20130061633A1 · Mak et al. · 2013 [cited by applicant]
US 20130186133A1 · Ploeger et al. · 2013 [cited by applicant]
US 20130298602A1 · Prim · 2013 [cited by applicant]
US 20140013797A1 · Butts · 2014 [cited by applicant]
US 20140026615A1 · Mak · 2014 [cited by applicant]
US 20140060114A1 · Mak · 2014 [cited by applicant]
US 20140075987A1 · Mak · 2014 [cited by applicant]
US 20140182331A1 · Burmberger et al. · 2014 [cited by applicant]
US 20140260420A1 · Mak · 2014 [cited by applicant]
US 20140290307A1 · Gahier et al. · 2014 [cited by applicant]
US 20140345319A1 · Santos · 2014 [cited by applicant]
US 20150184931A1 · Mak · 2015 [cited by applicant]
US 20150322350A1 · Iyer et al. · 2015 [cited by applicant]
US 20160069610A1 · Anguiano et al. · 2016 [cited by applicant]
US 20160231052A1 · Mak · 2016 [cited by applicant]
US 20160327336A1 · Kennedy et al. · 2016 [cited by applicant]
US 20170051970A1 · Mak · 2017 [cited by applicant]
US 20170058708A1 · Noureldin et al. · 2017 [cited by applicant]
US 20170370641A1 · Mak et al. · 2017 [cited by applicant]
US 20180017319A1 · Mak et al. · 2018 [cited by applicant]
US 20180058754A1 · Lynch et al. · 2018 [cited by applicant]
US 20180066889A1 · Gaskin et al. · 2018 [cited by applicant]
US 20180149425A1 · Oneal et al. · 2018 [cited by applicant]
US 20180231305A1 · Pierre, Jr. · 2018 [cited by applicant]
US 20180306498A1 · Rovers et al. · 2018 [cited by applicant]
US 20180320960A1 · Terrien et al. · 2018 [cited by applicant]
US 20180347899A1 · Cuellar et al. · 2018 [cited by applicant]
US 20190011180A1 · Mostafa · 2019 [cited by applicant]
US 20190086147A1 · Brown et al. · 2019 [cited by applicant]
US 20190120550A1 · Mak · 2019 [cited by applicant]
US 20190154333A1 · Mak · 2019 [cited by applicant]
US 20190242645A1 · Mak et al. · 2019 [cited by applicant]
US 20190271503A1 · Terrien et al. · 2019 [cited by applicant]
US 20200064064A1 · Butts · 2020 [cited by applicant]
US 20200072546A1 · Thom et al. · 2020 [cited by applicant]
US 20200141639A1 · Mak et al. · 2020 [cited by applicant]
US 20200199046A1 · Simon et al. · 2020 [cited by applicant]
US 20200370824A1 · Mak et al. · 2020 [cited by applicant]
US 20210095921A1 · Mak et al. · 2021 [cited by applicant]
US 20230349633A1 · Mak · 2023 [cited by applicant]
AR 0103703 · 2017 [cited by applicant]
AR 115412A1 · 2021 [cited by applicant]
AR 115412B1 · 2023 [cited by applicant]
AT 383557T · 2010 [cited by applicant]
AU 2002303849A1 · 2003 [cited by applicant]
AU 2008287322A1 · 2009 [cited by applicant]
AU 2011349713A1 · 2013 [cited by applicant]
AU 2016407529A1 · 2018 [cited by applicant]
CA 2176430A1 · 1997 [cited by applicant]
CA 2484085A1 · 2003 [cited by applicant]
CA 2694149A1 · 2009 [cited by applicant]
CA 3084911A1 · 2012 [cited by applicant]
CA 2976071A1 · 2016 [cited by applicant]
CA 3008229 · 2022 [cited by applicant]
CA 3022085C · 2023 [cited by applicant]
CN 2004800385528 · 2009 [cited by applicant]
CN 101815915A · 2010 [cited by applicant]
CN 113795461 · 2021 [cited by applicant]
DE 60224585T2 · 2009 [cited by applicant]
EA 007771B1 · 2007 [cited by applicant]
EA 201390957A1 · 2013 [cited by applicant]
EP 0010939A1 · 1980 [cited by applicant]
EP 1508010A1 · 2005 [cited by applicant]
EP 2185878A1 · 2010 [cited by applicant]
EP 2521761A1 · 2012 [cited by applicant]
EP 2655992A1 · 2013 [cited by applicant]
EP 3256550A1 · 2017 [cited by applicant]
EP 3400278A1 · 2018 [cited by applicant]
GC 0004114 · 2016 [cited by applicant]
JP 2007510124A · 2007 [cited by applicant]
MX 2010001472A · 2010 [cited by applicant]
MX 2013007136A · 2013 [cited by applicant]
MX 391995 · 2022 [cited by applicant]
MX 411149 · 2024 [cited by applicant]
NO 20044580L · 2004 [cited by applicant]
WO 99023428A1 · 1999 [cited by applicant]
WO 0188447A1 · 2001 [cited by applicant]
WO 2002014763A1 · 2002 [cited by applicant]
WO 2002079706A1 · 2002 [cited by applicant]
WO 2003095913A1 · 2003 [cited by applicant]
WO 2003100334A1 · 2003 [cited by applicant]
WO 2004017002A1 · 2004 [cited by applicant]
WO 2004065868A1 · 2004 [cited by applicant]
WO 2004076946A2 · 2004 [cited by applicant]
WO 2004080936A1 · 2004 [cited by applicant]
WO 2005045338A1 · 2005 [cited by applicant]
WO 2007001669A2 · 2007 [cited by applicant]
WO 2007014069A2 · 2007 [cited by applicant]
WO 2007014209A2 · 2007 [cited by applicant]
WO 2008002592A2 · 2008 [cited by applicant]
WO 2009023252A1 · 2009 [cited by applicant]
WO 2011123278A1 · 2011 [cited by applicant]
WO 2012087740A1 · 2012 [cited by applicant]
WO 2012177749A2 · 2012 [cited by applicant]
WO 2014047464A1 · 2014 [cited by applicant]
WO 2014151908A1 · 2014 [cited by applicant]
WO 2016130574A1 · 2016 [cited by applicant]
WO 2017119913A1 · 2017 [cited by applicant]
WO 2017200557A1 · 2017 [cited by applicant]
WO 2018049128A1 · 2018 [cited by applicant]
WO 2019078892A1 · 2019 [cited by applicant]
WO 2019226156A1 · 2019 [cited by applicant]
WO 20200123814 · 2020 [cited by applicant]
Office Action dated Dec. 29, 2021, Saudi Arabian Patent Application No. 51891931 filed Jan. 15, 2016. [cited by applicant]
Final Office Action dated Apr. 20, 2022, U.S. Appl. No. 16/260,288, filed Jan. 29, 2019. [cited by applicant]
Advisory Action dated Jul. 27, 2022, U.S. Appl. No. 16/260,288, filed Jan. 29, 2019. [cited by applicant]
Office Action dated Dec. 13, 2021, Australian Patent Application filed May 18, 2016. [cited by applicant]
Notice of Allowance dated Feb. 24, 2022, U.S. Appl. No. 16/390,687, filed Apr. 22, 2019. [cited by applicant]
Notice of Allowance dated Mar. 7, 2022, Mexican Patent Application No. MX/a/2016/009162 filed Jul. 13, 2016. [cited by applicant]
Office Action dated Dec. 21, 2021, Brazilian Patent Application filed Sep. 8, 2017. [cited by applicant]
Office Action dated Jun. 7, 2022, Brazilian Patent Application filed Sep. 8, 2017. [cited by applicant]
Office Action dated Mar. 16, 2022, U.S. Appl. No. 16/325,696, filed Feb. 14, 2019. [cited by applicant]
Final Office Action dated Jul. 5, 2022, U.S. Appl. No. 16/325,696, filed Feb. 14, 2019. [cited by applicant]
Office Action dated Jun. 20, 2022, Saudi Arabia Patent Application No. 520411793 filed Oct. 20, 2017. [cited by applicant]
Examiner's Answer to Appeal Brief dated Jun. 2, 2022, U.S. Appl. No. 16/219,126, filed Dec. 13, 2018. [cited by applicant]
Office Action dated Mar. 11, 2022, U.S. Appl. No. 16/421,138, filed May 23, 2019. [cited by applicant]
Final Office Action dated Jun. 17, 2022, U.S. Appl. No. 16/421,138, filed May 23, 2019. [cited by applicant]
Notice of Allowance dated Jan. 24, 2019, U.S. Appl. No. 15/158,143, filed May 16, 2016. [cited by applicant]
Office Action dated Aug. 11, 2017, U.S. Appl. No. 15/191,251, filed Jun. 23, 2016. [cited by applicant]
Final Office Action dated Feb. 1, 2018, U.S. Appl. No. 15/191,251, filed Jun. 23, 2016. [cited by applicant]
Advisory Action dated Apr. 23, 2018, U.S. Appl. No. 15/191,251, filed Jun. 23, 2016. [cited by applicant]
Office Action dated Aug. 15, 2018, U.S. Appl. No. 15/191,251, filed Jun. 23, 2016. [cited by applicant]
Final Office Action dated Mar. 6, 2019, U.S. Appl. No. 15/191,251, filed Jun. 23, 2016. [cited by applicant]
Restriction Requirement dated Sep. 18, 2019, U.S. Appl. No. 15/789,463, filed Oct. 20, 2017. [cited by applicant]
Office Action dated May 4, 2020, U.S. Appl. No. 15/789,463, filed Oct. 20, 2017. [cited by applicant]
Notice of Allowance dated Apr. 27, 2021, U.S. Appl. No. 15/789,463, filed Oct. 20, 2017. [cited by applicant]
Office Action dated Sep. 22, 2020, U.S. Appl. No. 16/219,126, filed Dec. 13, 2018. [cited by applicant]
Office Action dated Jan. 29, 2021, U.S. Appl. No. 16/219,126, filed Dec. 13, 2018. [cited by applicant]
Final Office Action dated Aug. 9, 2021, U.S. Appl. No. 16/219,126, filed Dec. 13, 2018. [cited by applicant]
Foreign Communication from a Related Counterpart—International Search Report and Written Opinion, dated Aug. 24, 2016, PCT/US2016/013687, filed on Jan. 15, 2016. [cited by applicant]
Foreign Communication from a Related Counterpart—International Preliminary Examination Report, dated Jul. 19, 2018, PCT/US2016/013687, filed on Jan. 15, 2016. [cited by applicant]
International Application No. PCT/US02/16311, International Preliminary Examination Report, mailed Feb. 19, 2003, 6 pages. [cited by applicant]
Foreign Communication from a Related Counterpart—International Search Report and Written Opinion, dated Feb. 16, 2005, PCT/US2004/032788, filed on Oct. 5, 2004. [cited by applicant]
Foreign Communication from a Related Counterpart—International Preliminary Report on Patentability, dated Feb. 27, 2006, PCT/US2004/032788, filed on Oct. 5, 2004. [cited by applicant]
International Application No. PCT/US08/09736, Written Opinion of the International Searching Authority, mailed Nov. 3, 2008, 5 pages. [cited by applicant]
International Application No. PCT/US08/09736, International Preliminary Report on Patentability, mailed May 25, 2010, 6 pages. [cited by applicant]
Foreign Communication from a Related Counterpart—International Search Report and Written Opinion, dated Apr. 18, 2012, PCT/2011/065140, filed on Dec. 15, 2011. [cited by applicant]
Foreign Communication from a Related Counterpart—International Preliminary Report on Patentability, dated Jun. 25, 2013, PCT/2011/065140, filed on Dec. 15, 2011. [cited by applicant]
Foreign Communication from a Related Counterpart—International Search Report and Written Opinion, dated Jul. 21, 2013, PCT/US2012/043332, filed Jun. 20, 2012. [cited by applicant]
Foreign Communication from a Related Counterpart—International Preliminary Report on Patentability, dated Jan. 4, 2015, PCT/US2012/043332, filed Jun. 20, 2012. [cited by applicant]
Foreign Communication from a Related Counterpart—International Search Report and Written Opinion, dated Jan. 14, 2014, PCT/US2013/060971, filed Sep. 20, 2013. [cited by applicant]
Foreign Communication from a Related Counterpart—International Preliminary Report on Patentability, dated Jan. 7, 2015, PCT/US2013/060971, filed Sep. 20, 2013. [cited by applicant]
Foreign Communication from a Related Counterpart—International Search Report and Written Opinion, dated Jul. 7, 2014, PCT/US2014/026655, filed on Mar. 14, 2014. [cited by applicant]
Foreign Communication from a Related Counterpart—International Preliminary Report on Patentability, dated Sep. 15, 2015, PCT/US2014/026655, filed on Mar. 14, 2014. [cited by applicant]
Foreign Communication from a Related Counterpart—International Search Report and Written Opinion, dated Jul. 1, 2016, PCT/US2016/017190, filed Feb. 6, 2016. [cited by applicant]
Foreign Communication from a Related Counterpart—International Preliminary Report on Patentability, dated Aug. 24, 2017, PCT/US2016/017190, filed Feb. 6, 2016. [cited by applicant]
Foreign Communication from a Related Counterpart—International Search Report and Written Opinion, dated Dec. 8, 2016, PCT/US2016/034362, filed on May 26, 2016. [cited by applicant]
International Search Report and Written Opinion, dated Dec. 12, 2017, PCT/US2017/0050636, filed on Sep. 8, 2017. [cited by applicant]
International Preliminary Report on Patentability, dated Mar. 21, 2019, PCT/US2017/0050636, filed on Sep. 8, 2017. [cited by applicant]
International Preliminary Report On Patentability, dated Nov. 29, 2018, PCT/US2016/034362, filed on May 26, 2016. [cited by applicant]
Foreign Communication from a Related Counterpart—International Search Report and Written Opinion, dated May 1, 2018, PCT/US2017/057674, filed on Oct. 20, 2017. [cited by applicant]
Foreign Communication from a Related Counterpart—International Search Report and Written Opinion, dated Jul. 23, 2018, PCT/US2018/033875, filed on May 22, 2018. [cited by applicant]
International Preliminary Report on Patentability, dated Dec. 3, 2020, PCT/US2018/033875, filed on May 22, 2018. [cited by applicant]
International Preliminary Report on Patentability, dated Apr. 30, 2020, PCT/US2017/057674, filed on Oct. 20, 2017. [cited by applicant]
International Application No. PCT/US2019/065993 filed Dec. 12, 2019, PCT Search Report and Written Opinion dated Apr. 9, 2020. [cited by applicant]
PCT International Preliminary Report on Patentability dated Jun. 24, 2021; International Application No. PCT/US2019/065993 filed Dec. 12, 2019. [cited by applicant]
Area 4, “Reboilers”, found at: https://www.area4.info/Area4%20Informations/REBOILERS.htm. [cited by applicant]
Editors: Mokhatab, S.; Poe, W. A. Poe; Spe, J. G. Handbook of Natural Gas Transmission and Processing (Elsevier, 2006, ISBN U 978-0-7506-7776-9, pp. 365-400), Chapter 10, pp. 365-400. [cited by applicant]
Mak, John, “Flexible NGL Recovery and Methods,” filed Oct. 20, 2003, U.S. Appl. No. 60/516,120. [cited by applicant]
Mak, John, “Ethane Recovery and Ethane Rejection Methods and Configurations,” filed Dec. 23, 2010, U.S. Appl. No. 61/426,756. [cited by applicant]
Mak, John, “Ethane Recovery and Ethane Rejection Methods and Configurations,” filed Jan. 21, 2011, U.S. Appl. No. 61/434,887. [cited by applicant]
Mak, John, “Configurations and Methods for Retrofitting NGL Recovery Plant,” filed Jun. 20, 2011, U.S. Appl. No. 61/499,033. [cited by applicant]
Mak, John, “Configurations and Methods for NGL Recovery for High Nitrogen Content Feed Gases,” filed Sep. 20, 2012, U.S. Appl. No. 61/703,654. [cited by applicant]
Mak, John, “Flexible NGL Recovery Methods and Configurations,” filed Mar. 14, 2013, U.S. Appl. No. 61/785,329. [cited by applicant]
Mak, John, “Methods and Configuration of an NGL Recovery Process for Low Pressure Rich Feed Gas,” filed Feb. 9, 2015, U.S. Appl. No. 62/113,938. [cited by applicant]
Mak, John, et al., “Methods and Configuration for Retrofitting NGL Plant for High Ethane Recovery.” filed Sep. 9, 2016, U.S. Appl. No. 62/385,748. [cited by applicant]
Mak, John, et al., “Methods and Configuration for Retrofitting NGL Plant for High Ethane Recovery.” filed Sep. 9, 2016, U.S. Appl. No. 62/489,234. [cited by applicant]
U.S. Appl. No. 12/669,025, Office Action, mailed May 8, 2012, 12 pages. [cited by applicant]
U.S. Appl. No. 12/669,025, Office Action, mailed Oct. 10, 2013, 11 pages. [cited by applicant]
U.S. Appl. No. 12/669,025, Final Office Action, mailed Mar. 4, 2014, 10 pages. [cited by applicant]
U.S. Appl. No. 12/669,025, Notice of Allowance, mailed Apr. 7, 2015, 12 pages. [cited by applicant]
Mexico Patent Application No. MX/a/2010/001472, Office Action, dated Nov. 15, 2013, 1 page. [cited by applicant]
Mexico Patent Application No. MX/a/2010/001472, Office Action, dated Jul. 23, 2014, 1 page. [cited by applicant]
United Arab Emirates Patent Application No. 0143/2010, Search Report, dated Oct. 3, 2015, 9 pages. [cited by applicant]
Restriction Requirement dated Sep. 22, 2015, U.S. Appl. No. 13/996,805, filed Sep. 17, 2013. [cited by applicant]
Office Action dated Feb. 9, 2016, U.S. Appl. No. 13/996,805, filed Sep. 17, 2013. [cited by applicant]
Notice of Allowance dated Jun. 9, 2016, U.S. Appl. No. 13/996,805, filed Sep. 17, 2013. [cited by applicant]
Australian Application No. 2011349713, Examination Report, dated Dec. 16, 2014, 2 pages. [cited by applicant]
Australia Application No. 2011349713, Notice of Acceptance, dated Mar. 31, 2015, 2 pages. [cited by applicant]
Restriction Requirement dated Sep. 12, 2018, U.S. Appl. No. 15/259,354, filed Sep. 8, 2016. [cited by applicant]
Office Action dated Mar. 1, 2019, U.S. Appl. No. 15/259,354, filed Sep. 8, 2016. [cited by applicant]
Notice of Allowance dated Jun. 19, 2019, U.S. Appl. No. 15/259,354, filed Sep. 8, 2016. [cited by applicant]
Corrected Notice of Allowability dated Jul. 2, 2019, U.S. Appl. No. 15/259,354, filed Sep. 8, 2016. [cited by applicant]
Restriction Requirement dated Jan. 8, 2014, U.S. Appl. No. 13/528,332, filed Jun. 20, 2012. [cited by applicant]
Notice of Allowance dated Aug. 15, 2014, U.S. Appl. No. 13/528,332, filed Jun. 20, 2012. [cited by applicant]
Examination Report dated Mar. 17, 2016, AU Application No. 2012273028, priority date Jun. 20, 2011. [cited by applicant]
Office Action dated Jun. 28, 2018, CA Application No. 2,839,132, filed on Dec. 11, 2013. [cited by applicant]
Office Action dated Jun. 14, 2019, Canadian Application No. 2,839,132, filed on Dec. 11, 2013. [cited by applicant]
Office Action dated Jun. 29, 2018, MX Application No. MX/A/2013/014864, filed on Dec. 13, 2013. [cited by applicant]
Notice of Allowance dated Oct. 18, 2018, MX Application No. MX/A/2013/014864, filed on Dec. 13, 2013. [cited by applicant]
Restriction Requirement dated Nov. 19, 2015, U.S. Appl. No. 14/033,096, filed Sep. 20, 2013. [cited by applicant]
Office Action dated Jun. 2, 2016, U.S. Appl. No. 14/033,096, filed Sep. 20, 2013. [cited by applicant]
Final Office Action dated Dec. 9, 2016, U.S. Appl. No. 14/033,096, filed Sep. 20, 2013. [cited by applicant]
Advisory Action dated Feb. 28, 2017, U.S. Appl. No. 14/033,096, filed Sep. 20, 2013. [cited by applicant]
Office Action dated May 11, 2017, U.S. Appl. No. 14/033,096, filed Sep. 20, 2013. [cited by applicant]
Final Office Action dated Nov. 15, 2017, U.S. Appl. No. 14/033,096, filed Sep. 20, 2013. [cited by applicant]
Advisory Action dated Feb. 6, 2018, U.S. Appl. No. 14/033,096, filed Sep. 20, 2013. [cited by applicant]
Office Action dated Mar. 26, 2018, U.S. Appl. No. 14/033,096, filed Sep. 20, 2013. [cited by applicant]
Final Office Action dated Oct. 17, 2018, U.S. Appl. No. 14/033,096, filed Sep. 20, 2013. [cited by applicant]
Office Action dated Apr. 4, 2019, U.S. Appl. No. 14/033,096, filed Sep. 20, 2013. [cited by applicant]
Restriction Requirement dated Aug. 9, 2021, filed Jan. 29, 2019, U.S. Appl. No. 16/260,288. [cited by applicant]
Office Action dated Nov. 25, 2015, U.S. Appl. No. 14/210,061, filed Mar. 14, 2014. [cited by applicant]
Notice of Allowance dated Mar. 26, 2016, U.S. Appl. No. 14/210,061, filed Mar. 14, 2014. [cited by applicant]
Notice of Decision dated Sep. 30, 2019, United Arab Emirates Patent Application No. P1023/2015 filed Mar. 14, 2014. [cited by applicant]
Office Action dated Sep. 26, 2017, U.S. Appl. No. 15/019,570, filed Feb. 6, 2016. [cited by applicant]
Notice of Allowance dated May 18, 2018, U.S. Appl. No. 15/019,570, filed Feb. 6, 2016. [cited by applicant]
Office Action dated Mar. 21, 2019, Canadian Patent Application No. 2976071 filed Feb. 9, 2016. [cited by applicant]
Office Action dated Dec. 3, 2019, Canadian Patent Application No. 2976071 filed Feb. 9, 2016. [cited by applicant]
Notice of Allowance dated May 19, 2020, Canadian Patent Application No. 2976071 filed Feb. 9, 2016. [cited by applicant]
Extended European Search Report dated Aug. 1, 2018, European Patent Application filed Feb. 9, 2016. [cited by applicant]
Communication Pursuant to Rules 70(2) and 70a(2) EPC dated Aug. 20, 2018, European Patent Application filed Feb. 9, 2016. [cited by applicant]
Examination Report dated Jul. 9, 2020, European Patent Application No. 167497733.9 filed Feb. 9, 2016. [cited by applicant]
Office Action dated Jul. 7, 2017, U.S. Appl. No. 15/158,143, filed May 16, 2016. [cited by applicant]
Final Office Action dated Nov. 1, 2017, U.S. Appl. No. 15/158,143, filed May 16, 2016. [cited by applicant]
Office Action dated Mar. 14, 2018, U.S. Appl. No. 15/158,143, filed May 16, 2016. [cited by applicant]
Final Office Action dated Jun. 29, 2018, U.S. Appl. No. 15/158,143, filed May 16, 2016. [cited by applicant]