Perovskite membranes in ammonia oxidation:: Towards process intensification in nitric acid manufacture

被引：42
|
作者：
Pérez-Ramírez, JP
Vigeland, B
机构：
[1] Yara Technol Ctr Porsgrunn Catalysis & Nitr Acid, N-3908 Porsgrunn, Norway
[2] Norsk Hydro AS, Corp Res Ctr, Mat Dev, N-3908 Porsgrunn, Norway
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2005年 / 44卷 / 07期
关键词：
heterogeneous catalysis; membranes; oxidation; perovskite phases; reactive separation;
D O I：
10.1002/anie.200462024
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Intensified nitric acid production is possible when NH3 is oxidized with Ca- and Sr-substituted lanthanum ferrite perovskites in a membrane reactor with NO selectivities of up to 98% (see picture). In this new process atmospheric N2 is rejected by the oxygen-conducting membrane, expensive noble metal catalysts are unnecessary, and no environmentally harmful N2O is produced. © 2005 Wiley-VCH Verlag GmbH & Co. KCaA, Weinheim.
引用
收藏
页码：1112 / 1115
页数：4
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