Development of Inorganic Membranes for Hydrogen Separation.

Bischoff, B. L. ; Adcock, K. D. ; Powell, L. E. ; Sutton, T. G. ; Miller, C. J.

Technical Information Center Oak Ridge Tennessee

关键词: Hydrogen;    Separation processes;    Membranes;    Coal;    Coal gasification plants;   

RP-ID  :  DE2008932642

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The purpose of this work is to improve the method of fabricating tubular metal supported microporous inorganic membranes. Earlier work focused on the original development of inorganic membranes for the purification of hydrogen. These membranes are now being scaled up for demonstration in a coal gasification plant for the separation of hydrogen from coal-derived synthesis gas for a project funded by the Office of Fossil Energy's Gasification and Coal Fuels programs. This project is part of FutureGen, an initiative to build the world's first integrated sequestration and hydrogen production research power plant. Although previous work in the Advanced Research Materials Program project led to development of a tubular metal supported microporous membrane which was approved by the Department of Energy for testing, the membranes generally have lower than desired selectivities for hydrogen over other gases common in synthesis gas including carbon dioxide. The work on this project over three years will lead to general improvements in fabrication techniques that will result in membranes having higher separation factors and higher fluxes. Scanning electron microscopy and profilometry data will be presented to show qualitatively and quantitatively the surface roughness of the support tubes.