IP Library › Granted Patent US 9,309,539
Granted Patent B2
US 9,309,539 · App. 12/757,630 · Granted Apr 12, 2016

System for recycling water to facilitate the production of ethanol

Inventor: Rachel L. Kloos (Sioux Falls, SD)
Assignee: POET Research, Inc.
C12P7/06C12M21/12Y02E50/17
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Quick Facts
Patent No.
US 9,309,539
App. No.
12/757,630
Granted
Apr 12, 2016
Kind
B2
Abstract

A system for the production of ethanol is disclosed. The system comprises a system for recycling water in an ethanol production process. The system may comprise: a water supply that supplies water to the ethanol production process, a cooling tower system that supplies water to the ethanol production process, and a treatment system that supplies water to the ethanol production process. The treatment system may be a reverse osmosis system that supplies a retentate stream to the ethanol production process.

Claims (15)

1. A method of recycling water in a biorefinery ethanol production process, the method comprising:

supplying water from a water supply to a reverse osmosis system of the biorefinery ethanol production process;

supplying water from the water supply and the reverse osmosis system to a cooling tower of the biorefinery ethanol production process;

supplying water from the reverse osmosis system to a boiler system of the biorefinery ethanol production process; and

supplying steam from the boiler system and water from the cooling tower and the reverse osmosis system to the biorefinery ethanol production process.

2. The method of claim 1 , wherein the water from the water supply comprises less than 100 percent of water supplied to the biorefinery ethanol production process.

3. The method of claim 1 , wherein the water from the cooling tower comprises between 1 and 7 percent of water supplied to the biorefinery ethanol production process.

4. The method of claim 1 , wherein water supplied to the biorefinery ethanol production process, after recycling said water, comprises between 100 and 600 parts per million of Calcium.

5. The method of claim 1 , wherein water supplied to the biorefinery ethanol production process, after recycling said water, comprises between 30 and 600 parts per million of Magnesium.

6. The method of claim 1 , wherein water supplied to the biorefinery ethanol production process, after recycling said water, comprises between 10 and 500 parts per million of Sulfate.

7. The method of claim 1 , wherein water supplied to the biorefinery ethanol production process, after recycling said water, comprises between 0 and 125 parts per million of Silicon Dioxide.

8. The method of claim 1 , wherein water supplied to the biorefinery ethanol production process, after recycling said water, comprises between 0 and 250 parts per million of Chloride.

9. The method of claim 1 , wherein water supplied to the biorefinery ethanol production process, after recycling said water, comprises between 1000 and 4000 parts per million of total dissolved solids.

10. The method of claim 1 , wherein the reverse osmosis system produces a permeate stream and a retentate stream, the retentate stream being supplied to the biorefinery ethanol production process.

11. The method of claim 1 , wherein the water supplied to the biorefinery ethanol production process comprises a Langelier Saturation Index less than 2.

Assignments (7)
SECURITY INTEREST Recorded Apr 3, 2020
From: POET RESEARCH, INC.
To: COBANK, ACB, AS ADMINISTRATIVE AGENT
Reel/Frame 052312/0801 →
RELEASE OF SECURITY INTEREST RECORDED AT REEL/FRAME 035603/0778 Recorded Apr 2, 2020
From: JPMORGAN CHASE BANK N.A., AS ADMINISTRATIVE AGENT
To: POET, LLC; POET RESEARCH, INC.; POET PLANT MANAGEMENT, LLC; POET INVESTMENTS, INC.; POET BIOMASS, LLC; POET DESIGN AND CONSTRUCTION, INC.; RISK MANAGEMENT ASSOCIATES, INC.; POET NUTRITION, INC.; POET RESEARCH CENTER, LLC (FORMERLY KNOWN AS POET RESEARCH CENTER, INC.); POET LEASING, LLC; POET NUTRITION INTERNATIONAL, INC.
Reel/Frame 052299/0676 →
SECURITY INTEREST Recorded Apr 2, 2020
From: POET RESEARCH, INC.
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 052295/0712 →
RELEASE OF PATENT, TRADEMARK AND COPYRIGHT SECURITY INTEREST Recorded May 6, 2015
From: BOKF, N.A., DBA BANK OF OKLAHOMA
To: POET RESEARCH, INC. F/K/A BROIN AND ASSOCIATES, INC.; POET, LLC F/K/A BROIN COMPANIES, LLC; POET INVESTMENTS, INC. F/K/A BROIN ENTERPRISES, INC.; POET PLANT MANAGEMENT, LLC
Reel/Frame 035603/0610 →
ACKNOWLEDGEMENT OF SECURITY INTEREST IN PATENTS Recorded May 6, 2015
From: POET, LLC; POET RESEARCH, INC.; POET PLANT MANAGEMENT, LLC; POET INVESTMENTS, INC.; POET BIOMASS, LLC; POET DESIGN AND CONSTRUCTION, INC.; RISK MANAGEMENT ASSOCIATES, INC.; POET NUTRITION, INC.; POET RESEARCH CENTER, INC.; POET LEASING, LLC; POET NUTRITION INTERNATIONAL, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 035603/0778 →
SECURITY AGREEMENT Recorded Feb 11, 2011
From: POET RESEARCH, INC.
To: BOKF, NA, D/B/A BANK OF OKLAHOMA
Reel/Frame 025783/0430 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 26, 2010
From: KLOOS, RACHEL L.
To: POET RESEARCH, INC.
Reel/Frame 025197/0769 →
Continuity (2)
Provisional Application 61168334 · Apr 10, 2009
Related Publication 20100261243A1 · Oct 14, 2010