Method and Apparatus for Reducing CO2 in a Stream by Conversion to a Syngas for Production of Energy
AssigneeGYCO, Inc.
InventorGary C. Young
Life of this patent
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Abstract
A system and method for producing Syngas from the CO2 in a gaseous stream, such as an exhaust stream, from a power plant or industrial plant, like a cement kiln, is disclosed. A preferred embodiment includes providing the gaseous stream to pyrolysis reactor along with a carbon source such as coke. The CO2 and carbon are heated to about 1330° C. and at about one atmosphere with reactants such as steam such that a reaction takes place that produces Syngas, carbon dioxide (CO2) and hydrogen (H2). The Syngas is then cleaned and provided to a Fischer-Tropsch synthesis reactor to produce Ethanol or Bio-catalytic synthesis reactor.
Claims27
An apparatus for producing syngas that reduces an amount of carbon dioxide in a gaseous stream, the apparatus comprising:
- a reaction chamber, said reaction chamber selected to be one of a pyrolysis reactor, a conventional gasifier or a plasma arc gasifier and wherein said reaction chamber includes a input line for receiving a gaseous stream provided by a source separate from said reaction chamber, and said reaction chamber capable of operating at a preferred temperature of about 1330° C. and up to about 2000° C. and a pressure of about one bar or greater and capable of supporting a reaction in said reaction chamber to form syngas comprising carbon monoxide (CO) and hydrogen (H2), and carbon dioxide (CO2);
- a source of carbonaceous material provided as a feed to said reaction chamber;
- a source of H2O provided as a feed to said reaction chamber;
- a selected one of a power plant or an industrial plant capable of providing said gaseous stream from said separate source as a feed to said reaction chamber at said input line, said gaseous stream being a gaseous exhaust containing between about 30% to about 45% carbon dioxide (CO2);
- said reaction chamber further capable of supporting a reaction that consists essentially of said carbonaceous material, said H2O and said carbon dioxide (CO2) in said gaseous exhaust stream to form said syngas, and such that any remaining CO2 in said formed syngas is at least 53% less than the total amount of carbon dioxide (CO2) contained in said gaseous exhaust stream provided to said reaction chamber;
- and
- means capable of discharging said formed syngas, and said discharged formed syngas containing about 53% less carbon dioxide (CO2) than the total amount of carbon dioxide provided to said reaction chamber.
An apparatus for producing syngas that reduces an amount of carbon dioxide in a gaseous stream, the apparatus comprising:
- a reaction chamber wherein said reaction chamber includes a input line for receiving a gaseous stream provided by a source separate from said reaction chamber, and said reaction chamber capable of operating at a preferred temperature between about 400° C. and 5000° C. and a pressure of about one bar or greater and capable of supporting a reaction in said reaction chamber to form syngas comprising carbon monoxide (CO) and hydrogen (H2), and carbon dioxide (CO2);
- a source of carbonaceous material provided as a feed to said reaction chamber;
- a source of H2O provided as a feed to said reaction chamber;
- a selected one of a power plant or an industrial plant capable of providing a gaseous exhaust stream containing about 30% carbon dioxide (CO2) as a feed to said reaction chamber, said gaseous exhaust stream being the exhaust selected from one of said power plant or industrial plant;
- said reaction chamber further capable of supporting a reaction that consist essentially of said carbonaceous material, said H2O and said CO2 from said gaseous stream to reduce the amount of said CO2 to less than that provided to said reaction chamber, and to form said syngas wherein none of the carbonaceous material remains as un-reacted carbonaceous material in said syngas;
- means capable of discharging said formed syngas;
- means for returning any CO2 present in said formed syngas to said reaction chamber;
- and
- a water-gas shift reactor to receive said formed syngas comprising carbon monoxide (CO) and hydrogen (H2) and to adjust the carbon monoxide and hydrogen molar ratio to between 0.2 to 5.0 molecules of CO and 5.0 to 0.2 molecules of H2.
An apparatus for producing syngas that reduces an amount of carbon dioxide in a gaseous stream, the apparatus comprising:
- a reaction chamber capable of operating at a temperature of between 400 degrees C. and 5000 degrees C., and a pressure of about one bar or greater, and wherein said reaction chamber includes a input line for receiving a gaseous stream provided by a source separate from said reaction chamber, and capable of supporting a reaction in said reaction chamber to form a syngas output comprising carbon monoxide (CO), hydrogen (H2), and carbon dioxide (CO2);
- a source of carbonaceous material provided as a feed to said reaction chamber;
- a source of H2O provided as a feed to said reaction chamber;
- a selected one of a power plant or an industrial plant capable of providing a gaseous exhaust stream containing 30% of carbon dioxide (CO2) as a feed to said reaction chamber;
- said reaction chamber further capable of supporting a reaction consisting of said carbonaceous material, said H2O, and said carbon dioxide (CO2) in said gaseous exhaust stream to form said syngas output, wherein the total amount of carbon dioxide (CO2) in said formed syngas output is about 53% less than the total amount of carbon dioxide (CO2) provided to said reaction chamber;
- and
- means capable of discharging said formed syngas output containing about 53% less carbon dioxide (CO2) than the total amount of carbon dioxide provided to said reaction chamber.
An apparatus for producing syngas that reduces an amount of carbon dioxide in a gaseous stream, the apparatus comprising:
- a reaction chamber, said reaction chamber selected to be one of a pyrolysis reactor, a conventional gasifier or a plasma arc gasifier, and wherein said reaction chamber includes a input line for receiving a gaseous stream provided by a source separate from said reaction chamber, and said reaction chamber capable of operating at a preferred temperature of about 1330° C. and up to about 2000° C. and a pressure of about one bar or greater and capable of supporting a reaction in said reaction chamber to form syngas comprising carbon monoxide (CO) and hydrogen (H2), and carbon dioxide (CO2);
- a source of carbonaceous material provided as a feed to said reaction chamber;
- a source of H2O provided as a feed to said reaction chamber;
- a gaseous exhaust stream containing about 30% carbon dioxide (CO2) provided as a feed to said reaction chamber;
- said reaction chamber further capable of supporting a reaction consisting essentially of said carbonaceous material, said H2O and said carbon dioxide (CO2) in said gaseous exhaust stream to form said syngas, and such that any remaining CO2 in said formed syngas is at least 53% less than the total amount of carbon dioxide (CO2) that was provided in said gaseous exhaust stream to said reaction chamber;
- and
- means capable of discharging said formed syngas containing about 53% less carbon dioxide (CO2) than the total amount of carbon dioxide provided to said reaction chamber.
Dependencies are inferred from the claim text.