Single Membrane Reactor Configuration for Separation of Hydrogen, Cargbon Dioxide and Hydrogen Sulfide. Final Technical Report June 1, 2005 - May 31, 2008.

Roberts, M. ; Zabransky, R. ; Doong, S. ; Lin, J.

Technical Information Center Oak Ridge Tennessee

关键词: Membranes;    Hydrogen;    Carbon dioxide;    Reactors;    Coal gasification;   

RP-ID  :  DE2009958104

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The objective of the project was to develop a novel complementary membrane reactor process that can consolidate two or more downstream unit operations of a coal gasification system into a single module for production of a pure stream of hydrogen and a pure stream of carbon dioxide. The overall goals were to achieve higher hydrogen production efficiencies, lower capital costs and a smaller overall footprint than what could be achieved by utilizing separate components for each required unit process/operation in conventional coal-to-hydrogen systems. Specifically, this project was to develop a novel membrane reactor process that combines hydrogen sulfide removal, hydrogen separation, carbon dioxide separation and water-gas shift reaction into a single membrane configuration. The carbon monoxide conversion of the water-gas-shift reaction from the coal-derived syngas stream is enhanced by the complementary use of two membranes within a single reactor to separate hydrogen and carbon dioxide. Consequently, hydrogen production efficiency is increased. The single membrane reactor configuration produces a pure H(sub2) product and a pure CO(sub2) permeate stream that is ready for sequestration.