ADVANCED HYDROGEN TRANSPORT MEMBRANES FOR VISION 21 FOSSIL FUEL PLANTS
Author(s) -
Carl R. Evenson,
Anthony F. Sammells,
Richard Mackay,
Richard T. Treglio,
Sara L. Rolfe,
Richard G. Blair,
U. Balachandran,
Richard N. Kleiner,
James E. Stephan,
Frank E. Anderson,
Chandra Ratnasamy,
Jon P. Wagner,
Clive Brereton,
Warren Wolfs
Publication year - 2004
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/828289
Subject(s) - membrane , hydrogen , cermet , permeation , materials science , dissociation (chemistry) , grain boundary , conductivity , alloy , chemical engineering , analytical chemistry (journal) , composite material , chemistry , ceramic , chromatography , engineering , biochemistry , microstructure , organic chemistry
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
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