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Title: Development of dense membranes for hydrogen production from coal.

Abstract

The objective of this project is to develop dense ceramic membranes that, without using an external power supply or circuitry, can produce hydrogen via coal/coal gas-assisted water dissociation. This project grew out of an effort to develop a dense ceramic membrane for separating hydrogen from gas mixtures such as those generated during coal gasification, methane partial oxidation, and water-gas shift reactions.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
FE
OSTI Identifier:
982333
Report Number(s):
ANL/ES/CP-59042
TRN: US201013%%1011
DOE Contract Number:
DE-AC02-06CH11357
Resource Type:
Conference
Resource Relation:
Conference: American Chemical Society 234th National Meeting and Exposition; Aug. 19, 2007 - Aug. 23, 2007; Boston, MA
Country of Publication:
United States
Language:
ENGLISH
Subject:
01 COAL, LIGNITE, AND PEAT; 08 HYDROGEN; AVAILABILITY; CERAMICS; COAL; COAL GASIFICATION; DISSOCIATION; HYDROGEN; HYDROGEN PRODUCTION; MEETINGS; MEMBRANES; METHANE; MIXTURES; OXIDATION; POWER; WATER; WATER GAS

Citation Formats

Balachandran, U., Lee, T. H., Chen, L., Picciolo, J. J., Emerson, J. E., Dorris, S. E., and Energy Systems. Development of dense membranes for hydrogen production from coal.. United States: N. p., 2007. Web.
Balachandran, U., Lee, T. H., Chen, L., Picciolo, J. J., Emerson, J. E., Dorris, S. E., & Energy Systems. Development of dense membranes for hydrogen production from coal.. United States.
Balachandran, U., Lee, T. H., Chen, L., Picciolo, J. J., Emerson, J. E., Dorris, S. E., and Energy Systems. Mon . "Development of dense membranes for hydrogen production from coal.". United States. doi:.
@article{osti_982333,
title = {Development of dense membranes for hydrogen production from coal.},
author = {Balachandran, U. and Lee, T. H. and Chen, L. and Picciolo, J. J. and Emerson, J. E. and Dorris, S. E. and Energy Systems},
abstractNote = {The objective of this project is to develop dense ceramic membranes that, without using an external power supply or circuitry, can produce hydrogen via coal/coal gas-assisted water dissociation. This project grew out of an effort to develop a dense ceramic membrane for separating hydrogen from gas mixtures such as those generated during coal gasification, methane partial oxidation, and water-gas shift reactions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}

Conference:
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  • The electronic transference numbers of BCY were relatively low when compared with the protonic numbers. At 800 C, a hydrogen flux of only 0.02 cm{sup 3}/min/cm{sup 2} was obtained in an {approx} 2-rnm-thick BCY sample by short-circuiting the two Pt electrodes. We have developed a novel composite system with improved electronic transport, and preliminary measurements indicate that the new membrane materials can be used in a nongalvanic mode to separate hydrogen from gas mixtures. A maximum flux of 0.12 cm{sup 3}/min/cm{sup 2} has been measured at 800 C in the composite material operated in the nongalvanic mode. Currently, work ismore » underway to further enhance the hydrogen flux in the composite membrane materials.« less
  • We developed novel cermet (i.e., ceramic-metal composite) membranes for separating hydrogen from gas mixtures at high temperature and pressure. The hydrogen permeation rate in the temperature range of 600-900 C was determined for three classes of cermet membranes (ANL-1, ANL-2, and ANL-3). Among these membranes, ANL-3 showed the highest hydrogen permeation rate, with a maximum flux of 3.2 cm{sup 3}/min-cm{sup 2} for a 0.23-mm-thick membrane at 900 C. Effects of membrane thickness and hydrogen partial pressure on permeation rate indicated that bulk diffusion of hydrogen is rate-limiting for ANL-3 membranes. The lack of degradation in permeation rate during exposure tomore » a simulated syngas mixture suggests that ANL-3 membranes are chemically stable and suitable for long-term operation.« less
  • No abstract prepared.
  • No abstract prepared.
  • The goals of Office of Clean Coal are: (1) Improved energy security; (2) Reduced green house gas emissions; (3) High tech job creation; and (4) Reduced energy costs. The goals of the Hydrogen from Coal Program are: (1) Prove the feasibility of a 40% efficient, near zero emissions IGCC plant that uses membrane separation technology and other advanced technologies to reduce the cost of electricity by at least 35%; and (2) Develop H{sub 2} production and processing technologies that will contribute {approx}3% in improved efficiency and 12% reduction in cost of electricity.