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Integrated High Temperature Coal-to-Hydrogen System with CO2 Separation (Final Report, June 1, 2005-May 31, 2007).

DE2008924436

Publication Date	2007
Personal Author	Ruud, J. A.; Ku, A.; Ramaswamy, V.; Wei, W.; Wilson, P.
Page Count	65
Abstract	A significant barrier to the commercialization of coal-to-hydrogen technologies is high capital cost. The purity requirements for H(sub 2) fuels are generally met by using a series of unit clean-up operations for residual CO removal, sulfur removal, CO(sub 2) removal and final gas polishing to achieve pure H(sub 2). A substantial reduction in cost can be attained by reducing the number of process operations for H(sub 2) cleanup, and process efficiency can be increased by conducting syngas cleanup at higher temperatures. The objective of this program was to develop the scientific basis for a single high-temperature syngas-cleanup module to produce a pure stream of H(sub 2) from a coal-based system. The approach was to evaluate the feasibility of a 'one box' process that combines a shift reactor with a high-temperature CO(sub 2)-selective membrane to convert CO to CO(sub 2), remove sulfur compounds, and remove CO(sub 2) in a simple, compact, fully integrated system. A system-level design was produced for a shift reactor that incorporates a high-temperature membrane. The membrane performance targets were determined. System level benefits were evaluated for a coal-to-hydrogen system that would incorporate membranes with properties that would meet the performance targets.
Keywords	Coal gasification Hydrogen production Carbon dioxide Air pollution Removal Synthesis gas Hot gas cleanup Carbon monoxide Desulfurization Sulfur Syngas processes Shift processes Membranes High temperature Performance evaluation
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	General Electric Co., Schenectady, NY. Global Research Center.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200822
Contract Number	DE-FC26-05NT42451

Integrated High Temperature Coal-to-Hydrogen System with CO2 Separation (Final Report, June 1, 2005-May 31, 2007).

Integrated High Temperature Coal-to-Hydrogen System with CO2 Separation (Final Report, June 1, 2005-May 31, 2007).
DE2008924436

Publication Date	2007
Personal Author	Ruud, J. A.; Ku, A.; Ramaswamy, V.; Wei, W.; Wilson, P.
Page Count	65
Abstract	A significant barrier to the commercialization of coal-to-hydrogen technologies is high capital cost. The purity requirements for H(sub 2) fuels are generally met by using a series of unit clean-up operations for residual CO removal, sulfur removal, CO(sub 2) removal and final gas polishing to achieve pure H(sub 2). A substantial reduction in cost can be attained by reducing the number of process operations for H(sub 2) cleanup, and process efficiency can be increased by conducting syngas cleanup at higher temperatures. The objective of this program was to develop the scientific basis for a single high-temperature syngas-cleanup module to produce a pure stream of H(sub 2) from a coal-based system. The approach was to evaluate the feasibility of a 'one box' process that combines a shift reactor with a high-temperature CO(sub 2)-selective membrane to convert CO to CO(sub 2), remove sulfur compounds, and remove CO(sub 2) in a simple, compact, fully integrated system. A system-level design was produced for a shift reactor that incorporates a high-temperature membrane. The membrane performance targets were determined. System level benefits were evaluated for a coal-to-hydrogen system that would incorporate membranes with properties that would meet the performance targets.
Keywords	Coal gasification Hydrogen production Carbon dioxide Air pollution Removal Synthesis gas Hot gas cleanup Carbon monoxide Desulfurization Sulfur Syngas processes Shift processes Membranes High temperature Performance evaluation
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	General Electric Co., Schenectady, NY. Global Research Center.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200822
Contract Number	DE-FC26-05NT42451