4.7 Article Proceedings Paper

Catalytic steam reforming of methane under conditions of applicability with Pd membranes over supported Ru catalysts

期刊

CATALYSIS TODAY
卷 171, 期 1, 页码 126-131

出版社

ELSEVIER SCIENCE BV
DOI: 10.1016/j.cattod.2011.02.020

关键词

Ru catalysts; Methane steam reforming; Ni/SiO2; Pd membrane; Deactivation

资金

  1. MICINN of Spain [CTQ-2008-06839-C03-01, 03-PPQ, CTQ 2008-03068-E/PPQ, CIT-120000-2008-4]

向作者/读者索取更多资源

Three Ru catalysts supported on SiO2, ZrO2-SiO2 and ZrO2-La2O3 have been prepared, characterized and tested in the methane steam reforming (SR) reaction, and for comparative purposes a Ni/SiO2 catalyst has also been studied. Conditions of catalytic studies have been selected for the subsequent application in a hydrogen extraction Pd membrane reactor. That is, reaction temperatures in the range of 400-550 degrees C and with different amounts of catalyst in order to work under and/or close to the equilibrium conversion conditions. All the supported Ru samples exhibit high catalytic activity and similar CO and H-2 yields. Finally these catalysts are fully stable under reaction conditions at 550 degrees C for 15 h, while the Ni/SiO2 sample suffers a significant deactivation. The main deactivation process affecting this latter catalyst is the carbon deposition of partially dehydrogenated intermediates as detected by Raman spectroscopy. Hence, these Ru catalysts appear to be suitable for application combined with metallic (Pd) membrane. (C) 2011 Elsevier B. V. 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。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据