Highly Selective H2 Separation Zeolite Membranes for Coal Gasification Membrane Reactor Applications.

Hong, M. ; Noble, R. ; Falconer, J.

Technical Information Center Oak Ridge Tennessee

关键词: Zeolites;    Membranes;    Coal gasification;    Hydrogen separation;    Chemical reactors;   

RP-ID  :  DE2009956964

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Zeolite membranes are thermally, chemically, and mechanically stable. They also have tunable molecular sieving and catalytic ability. These unique properties make zeolite membrane an excellent candidate for use in catalytic membrane reactor applications related to coal conversion and gasification, which need high temperature and high pressure range separation in chemically challenging environment where existing technologies are inefficient or unable to operate. Small pore, good quality, and thin zeolite membranes are needed for highly selective H2 separation from other light gases (CO2, CH4, CO). However, current zeolite membranes have either too big zeolite pores or a large number of defects and have not been successful for H2 separation from light gases. The objective of this study is to develop zeolite membranes that are more suitable for H2 separation.