Direct methane cracking using a mixed conducting ceramic membrane for production of hydrogen and carbon

Title
Direct methane cracking using a mixed conducting ceramic membrane for production of hydrogen and carbon
Author(s)
김혜경Kyu-Sung Han[Kyu-Sung Han]Jin-Ho Kim[Jin-Ho Kim]Kwang-Taek Hwang[Kwang-Taek Hwang]
Keywords
FLUIDIZED-BED; DECOMPOSITION; CATALYSTS; NI; GASIFICATION; REACTOR; PD; PROPANE; BIOMASS; H-2
Issue Date
201312
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.38, no.36, pp.16133 - 16139
Abstract
The direct cracking of methane can be used to produce COx and NOx-free hydrogen for proton exchange membrane fuel cells. Recent studies have been focused on enhancing the hydrogen production using the direct thermocatalytic decomposition of methane as an attractive alternative to the conventional steam reforming process. We present the results of a systematic study of methane direct decomposition using a mixed conducting oxide, Y-doped BaCeO3, membrane. A dense disk-shaped BaCe0.85Y0.15O3 membrane was successfully prepared and covered with Pd film, as the catalyst for the methane decomposition. For the methane thermocatalytic decomposition, the methane gas was employed as reactant on the membrane side with a pressure of 10(2) kPa and rate of 70 ml/min at the reaction temperatures of 600, 700, and 800 degrees C. The hydrogen was selectively transported through the mixed conducting oxide membrane to the outer side. In addition, the carbon, which is a by-product after methane decomposition, showed the morphologies of sphere-shaped nanoparticles and the transparent sheets. Copyright (c) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/28147http://dx.doi.org/10.1016/j.ijhydene.2013.10.027
ISSN
0360-3199
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공과대학 > 신소재공학부 > Articles
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