Membrane Catalysis: N2O Decomposition over La0.2Sr0.8Ti0.2Fe0.8O3-δ Membrane with Oxygen Permeability

被引：2
作者：
Liu, Mengke [1 ,2 ]
Cao, Zhengwen [1 ]
Liang, Wenyuan [1 ]
Zhang, Yan [1 ]
Jiang, Heqing [1 ]
机构：
[1] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao Key Lab Funct Membrane Mat & Membrane Tec, 189 Songling Rd, Qingdao 266101, Peoples R China
[2] Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
来源：
CHEMIE INGENIEUR TECHNIK | 2022年 / 94卷 / 1-2期
基金：
中国国家自然科学基金; 中国科学院基金;
关键词：
Direct N2O decomposition; Membrane catalysis; Oxygen removal; Oxygen transport membrane; Perovskite; NITROUS-OXIDE DECOMPOSITION; PEROVSKITE OXIDES; TEMPERATURE; VACANCIES; REMOVAL;
D O I：
10.1002/cite.202100122
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Compared to conventional heterogeneous catalysis, membrane catalysis can facilitate in situ removal of inhibiting species on a catalyst, therefore effectively increases the reaction rate. Herein, kinetically controlled decomposition of N2O was studied employing a La0.2Sr0.8Ti0.2Fe0.8O3-delta (LSTF) perovskite membrane, and the direct catalytic N2O decomposition over membrane surface was compared with membrane catalysis of N2O decomposition involving in situ oxygen removal. In the case of membrane catalysis, oxygen produced from N2O conversion can be in situ removed by using a LSTF oxygen-permeable membrane, thus increasing the amount of surface active sites for N2O decomposition. By sweeping hydrogen at one side of the membrane to consume the permeated oxygen from the other side N2O conversion was improved.
引用
收藏
页码：70 / 77
页数：8
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