期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 35, 期 9, 页码 4103-4110出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2010.02.025
关键词
La(0.7)Sr(0.3)Cu(0.2)Fe(0.8)O(3-delta); Oxygen transport membrane; Water splitting; Ethanol reforming; Hydrogen production
资金
- U.S. Department of Energy (DOE), Energy Efficiency and Renewable Energy, Office of Fuel Cell Technologies
- Office of Fossil Energy
- National Energy Technology Laboratory [DE-AC02-06CH11357]
Oxygen transport membranes (OTMs) made of mixed ion-electron conductors can be used to increase the production of hydrogen from fossil and renewable sources. This study describes two methods for producing hydrogen with La(0.7)Sr(0.3)Cu(0.2)Fe(0.8)O(3-delta) (LSCF7328), an OTM material that is easily prepared, exhibits good mechanical properties, and is stable in severe gas conditions. In tests with thin-film (thickness approximate to 22 mu m) LSCF7328 membranes, hydrogen was produced by flowing simulated product streams from CO(2) gasification of coal on one side of the OTM and steam on the other side. In this method, the so-called coal gas on the oxygen-permeate side drives the removal of oxygen from the other side of the OTM, where hydrogen and oxygen are produced by water splitting. With CO (99.5% purity) flowing on the oxygen-permeate side, the hydrogen production rate was measured to be approximate to 4.7 cm(3)/min-cm(2) at 900 degrees C, indicating that hydrogen can be produced at a significant rate by using product streams from coal gasification. This process also yields a CO(2)-rich product stream that is ready for sequestration. In another test, a tubular LSCF7328 was found to increase the hydrogen production from ethanol reforming by supplying high-purity oxygen from air. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据