Sulfur as a Selectivity Modifier in a Highly Active Rh/Fe2O3/ZrO2 Catalyst for Water-Gas Shift

被引：1

作者：

Hakeem, Abrar A. ^{[1
]}

Rajendran, Jaikishen ^{[1
]}

Kapteijn, Freek ^{[1
]}

Makkee, Michiel ^{[1
]}

机构：

[1] Delft Univ Technol, Fac Sci Appl, Dept Chem Engn, NL-2628 BL Delft, Netherlands

来源：

CHEMCATCHEM | 2014年 / 6卷 / 08期

关键词：

iron; methane selectivity; rhodium; sulfur; sulfite; water-gas shift; KINETICS; CONVERSION; STEAM;

D O I：

10.1002/cctc.201402161

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The presence of small amounts of sulfur (< 500 ppm) on a Rh/Fe2O3/ZrO2 catalyst improves its water-gas shift (WGS) selectivity and stability under typical industrial conditions. Rh/Fe2O3/ZrO2 is a highly active WGS catalyst, but it produces small amounts of methane as a side product. The formation of methane is due to the presence of rhodium in the catalyst. Sulfur selectively poisons the site(s) responsible for methane formation. The improved selectivity and prolonged stability of the catalyst is maintained as long as sulfur is present.

引用

页码：2240 / 2243

页数：4

共 50 条

[31] Metastable Structure of Fe3O4 for Water-Gas Shift Catalyst
Huaxue Xuebao, 9 (833):
[32] Effect of Mo and Re Promoters on the Activity and Stability of a Pt/ZrO2 Water-Gas Shift Catalyst (Part 1)
Ruettinger, Wolfgang
Liu, Xinsheng
Xu, Xiaoming
Farrauto, Robert J.
TOPICS IN CATALYSIS, 2008, 51 (1-4) : 60 - 67
[33] CuO/ZrO2 catalysts for the production of H2 through the water-gas shift reaction: Effect of calcination temperature of ZrO2
Zhang, Yan-Jie
Chen, Chong-Qi
Zhan, Ying-Ying
Ye, Yuan-Song
Lou, Ben-Yong
Zheng, Guo-Cai
Lin, Qi
Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology, 2019, 47 (04): : 464 - 473
[34] Phase Transformations in Stabilized ZrO2 - Fe2O3 Compositions
V. I. Strakhov
I. V. Ivanova
A. I. Arsirii
K. Velkova
V. P. Migal'
S. I. Gershkovich
Refractories and Industrial Ceramics, 2005, 46 : 322 - 324
[35] Effect of Mo and Re Promoters on the Activity and Stability of a Pt/ZrO2 Water-Gas Shift Catalyst (Part 1)
Wolfgang Ruettinger
Xinsheng Liu
Xiaoming Xu
Robert J. Farrauto
Topics in Catalysis, 2008, 51 : 60 - 67
[36] Carbon monoxide hydrogenation on Fe2O3/ZrO2 catalysts
Chen, KD
Fan, YN
Hu, Z
Yan, QJ
CATALYSIS LETTERS, 1996, 36 (3-4) : 139 - 144
[37] Effect of precipitants on structure and catalytic activity of Au/Fe2O3 catalysts for the water-gas shift reaction
Hua Jinming
Zheng Qi
Wei Kemei
Lin Xingyi
CHINESE JOURNAL OF CATALYSIS, 2006, 27 (11) : 1012 - 1018
[38] Synthesis and characterization of ZrO2 capsules and crystalline ZrO2 thin layers on Fe2O3 powders
Gao, Yanfeng
Zhao, Feng
Liu, Yun
Luo, Hongjie
CRYSTENGCOMM, 2011, 13 (10): : 3511 - 3514
[39] Low-temperature water-gas shift reaction on Au/alpha-Fe2O3 catalyst
Andreeva, D
Idakiev, V
Tabakova, T
Andreev, A
Giovanoli, R
APPLIED CATALYSIS A-GENERAL, 1996, 134 (02) : 275 - 283
[40] Identification of the Active Cu Phase in the Water-Gas Shift Reaction over Cu/ZrO2 from First Principles
Tang, Qian-Lin
Liu, Zhi-Pan
JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (18): : 8423 - 8430

← 1 2 3 4 5 →