Honeycomb supported perovskite catalysts for ammonia oxidation processes

被引：32

作者：

Isupova, LA ^{[1
]}

Sutormina, EF ^{[1
]}

Kulikovskaya, NA ^{[1
]}

Plyasova, LM ^{[1
]}

Rudina, NA ^{[1
]}

Ovsyannikova, IA ^{[1
]}

Zolotarskii, IA ^{[1
]}

Sadykov, VA ^{[1
]}

机构：

[1] RAS, Boreskov Inst Catalysis SB, Novosibirsk 630090, Russia

来源：

CATALYSIS TODAY | 2005年 / 105卷 / 3-4期

关键词：

ammonia oxidation; perovskites; honeycomb cordierite-supported catalysts;

D O I：

10.1016/j.cattod.2005.06.039

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Pechini route (M.P. Pechini. U.S. Patent no. 3,330,697 (1967)) was used for supporting perovskite-like systems LaBO3 (B = Mn, Fe, Co, Ni, Cu) on thin-wall (0.35 mm) cordierite honeycomb support with low thermal expansion coefficient to prepare stable to thermal shocks supported catalysts for high-temperature processes of ammonia oxidation into NO in nitric acid production. In this preparation route, perovskites (2-6%) have nearly uniform distribution in the walls as well as form surface grainy perovskite layer 2-3 mu m thick that may be also important for the high temperature processes occurring at short contact times. Cordierite supported lanthanum manganite and cobaltite are the most active in the reaction of ammonia oxidation into NO especially when supported twice or on a secondary sublayer (Ln(2)O(3), ZrO2, MeO, LaBO3). (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：429 / 435

页数：7

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