IP Library › Granted Patent US 8,926,717
Granted Patent B2
US 8,926,717 · App. 12/663,295 · Granted Jan 6, 2015

Methods and systems for producing synthetic fuel

Inventors: Frank S. Zeman (Brooklyn, NY); Marco J. Castaldi (Yonkers, NY)
Assignee: The Trustees of Columbia University in the City of New York
C07C29/1518C01B3/34C01B2203/0238C01B2203/061C01B2203/062C01B2203/1241
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Quick Facts
Patent No.
US 8,926,717
App. No.
12/663,295
Granted
Jan 6, 2015
Kind
B2
Abstract

Methods and systems for producing a synthetic fuel are disclosed. In some embodiments, the methods and systems include the following: thermally reforming methane and carbon dioxide to generate a syngas including a first quantity of carbon monoxide and a first quantity of hydrogen; oxidizing the quantity of first carbon monoxide with a metal to produce metal oxide and carbon thereby separating oxygen from the carbon monoxide; gasifying the carbon using steam to produce a second quantity of carbon monoxide and a second quantity of hydrogen; reacting the metal oxide with methane to produce metal oxide, carbon dioxide, and a third quantity of hydrogen; and synthesizing the first quantity of carbon monoxide, the first quantity of hydrogen, the second quantity of hydrogen, and the third quantity of hydrogen to form the synthetic fuel.

Claims (14)

1. A method of producing a synthetic fuel, said method comprising:

thermally reforming methane and carbon dioxide to generate a syngas including a first quantity of carbon monoxide and a first quantity of hydrogen;

oxidizing a first portion of said quantity of first carbon monoxide with a metal to produce metal oxide and carbon thereby separating oxygen from said carbon monoxide;

gasifying said carbon using steam to produce a second quantity of carbon monoxide and a second quantity of hydrogen;

reacting said metal oxide with methane to produce metal oxide, carbon dioxide, and a third quantity of hydrogen; and

synthesizing a second portion of said first quantity of carbon monoxide, said first quantity of hydrogen, said second quantity of hydrogen, and said third quantity of hydrogen to form said synthetic fuel;

wherein said synthetic fuel includes at least one of methanol (CH 4 O), ethylene (C 2 H 4 ), ethanol (C 2 H 6 O), and butanol (C 4 H 10 O).

2. The method of claim 1 , further comprising:

wherein said carbon dioxide used to generate said syngas is from at least one of a biogas produced from anaerobic digestion, natural gas fields, carbon dioxide captured from atmospheric air, and a combination of one or more thereof.

3. The method of claim 1 , further comprising:

wherein said methane used to generate said syngas is from at least one of methane contained in a stranded natural gas well, a biogas produced from anaerobic digestion, and a combination of one or more thereof.

4. The method of claim 1 , wherein said metal is ferrous oxide (FeO) or ferrous ferric oxide (Fe 3 O 4 ).

5. The method of claim 3 , wherein said metal is mechanically milled to a particle size of less than 10 μm.

6. The method of claim 1 , wherein said syngas includes equal moles of carbon dioxide and methane.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 2, 2010
From: ZEMAN, FRANK S.; CASTALDI, MARCO J.
To: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
Reel/Frame 024471/0216 →
Continuity (3)
Provisional Application 60952385 · Jul 27, 2007
Provisional Application 60985401 · Nov 5, 2007
Related Publication 20100293845A1 · Nov 25, 2010