Advanced Hydrogen Transport Membranes for Vision 21 Fossil Fuel Plants

Evenson, Carl R. ; Sammells, Anthony F. ; Mackay, Richard ; Treglio, Richard ; Rolfe, Sara L. ; Blair, Richard ; Balachandran, U. ; Kleiner, Richard N. ; Stephan, James E. ; Anderson, Frank E. ; Ratnasamy, Chandra ; Wagner, Jon P. ; Brereton, Clive ; Wolfs, Warren

Eltron Research, Inc.

关键词: Alloys;    Dissociation;    Transport;    08 Hydrogen;    Testing;   

DOI  :  10.2172/828289
RP-ID  :  NONE
RP-ID  :  FC26-00NT40762
RP-ID  :  828289

美国|英语

来源: UNT Digital Library

【 摘 要 】

During this quarter, work was focused on testing layered composite membranes under varying feed stream flow rates at high pressure. By optimizing conditions, H{sub 2} permeation rates as high as 423 mL {center_dot} min{sup -1} {center_dot} cm{sup -2} at 440 C were measured. Membrane stability was investigated by comparison to composite alloy membranes. Permeation of alloyed membranes showed a strong dependence on the alloying element. Impedance analysis was used to investigate bulk and grain boundary conductivity in cermets. Thin film cermet deposition procedures were developed, hydrogen dissociation catalysts were evaluated, and hydrogen separation unit scale-up issues were addressed.