Polygeneration production of hydrogen for use in various industrial processes
First Claim
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1. A method for the production of hydrogen from synthesis gases of an oxygen supplied partial oxidation process, the method comprising the steps of:
- supplying a hydrocarbon or carbonaceous feedstock and oxygen to an oxygen supplied partial oxidation process to produce a synthesis gas, the synthesis gas comprising carbon dioxide, carbon monoxide, and hydrogen;
supplying the synthesis gas to a first reactor, the first reactor comprising a catalyst and being configured to convert at least a portion of the carbon monoxide to carbon dioxide and produce a modified synthesis gas;
supplying the modified synthesis gas to a second reactor, the second reactor comprising a catalyst and being configured to convert remaining carbon monoxide to carbon dioxide to produce a carbon dioxide-rich synthesis gas;
supplying the carbon dioxide-rich synthesis gas from the second reactor to a first condenser to remove water and produce a gas stream comprising hydrogen and carbon dioxide;
supplying the hydrogen and carbon dioxide stream to a pressure swing adsorption process to produce a pure hydrogen stream and pressure swing adsorption tail gas; and
extracting exothermic heat for the production of power, heating and cooling of the process, or export of steam.
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Abstract
Provided are processes for production of hydrogen to be used in various industrial processes, including in processes for production of ammonia and urea. Included are polygeneration processes that result in ultra-low emissions.
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Citations
20 Claims
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1. A method for the production of hydrogen from synthesis gases of an oxygen supplied partial oxidation process, the method comprising the steps of:
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supplying a hydrocarbon or carbonaceous feedstock and oxygen to an oxygen supplied partial oxidation process to produce a synthesis gas, the synthesis gas comprising carbon dioxide, carbon monoxide, and hydrogen; supplying the synthesis gas to a first reactor, the first reactor comprising a catalyst and being configured to convert at least a portion of the carbon monoxide to carbon dioxide and produce a modified synthesis gas; supplying the modified synthesis gas to a second reactor, the second reactor comprising a catalyst and being configured to convert remaining carbon monoxide to carbon dioxide to produce a carbon dioxide-rich synthesis gas; supplying the carbon dioxide-rich synthesis gas from the second reactor to a first condenser to remove water and produce a gas stream comprising hydrogen and carbon dioxide; supplying the hydrogen and carbon dioxide stream to a pressure swing adsorption process to produce a pure hydrogen stream and pressure swing adsorption tail gas; and extracting exothermic heat for the production of power, heating and cooling of the process, or export of steam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification