High-Rate Hydrogen Separation Using an MIEC Oxygen Permeable Membrane Reactor

被引：39
作者：
Li, Wenping [1 ,2 ]
Cao, Zhongwei [1 ]
Zhu, Xuefeng [1 ]
Yang, Weishen [1 ]
机构：
[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
AICHE JOURNAL | 2017年 / 63卷 / 04期
基金：
中国国家自然科学基金;
关键词：
hydrogen separation; MIEC membrane reactor; water splitting; high-purity hydrogen; oxygen permeation; DUAL-PHASE MEMBRANES; PARTIAL OXIDATION; PD; STABILITY; GAS; METHANE; SYSTEM; PURITY;
D O I：
10.1002/aic.15502
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this study, we propose using mixed ionic-electronic conducting (MIEC) oxygen permeable membrane to separate hydrogen via the water splitting reaction. To do that, steam was fed to one side of the membrane (side I) and a lowpurity hydrogen was fed to the other side (side II). Oxygen from water splitting on side I permeates through the membrane driven by an oxygen chemical potential gradient across the membrane to react with the low-purity hydrogen on side II. After condensation and drying, high-purity hydrogen is acquired from side I. Thus, the hydrogen separation process is realized based on the fact that the low-purity hydrogen is consumed and high-purity hydrogen is acquired. We achieved a high hydrogen separation rate (13.5 mL cm(-2) min(-1)) at 950 degrees C in a reactor equipped with a 0.5-mm-thick Ba0.98Ce0.05Fe0.95O3-delta membrane. This research proofed that it is feasible to upgrade hydrogen purity using an MIEC oxygen permeable membrane. (C) 2016 American Institute of Chemical Engineers AIChE J, 63: 1278-1286, 2017
引用
收藏
页码：1278 / 1286
页数：9
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