Performance of spinel ferrite catalysts integrated with mesoporous Al2O3 in the high temperature water-gas shift reaction

被引：49

作者：

Jeong, Dae-Woon ^{[1
]}

Jha, Ajay ^{[1
]}

Jang, Won-Jun ^{[1
]}

Han, Won-Bi ^{[1
]}

Roh, Hyun-Seog ^{[1
]}

机构：

[1] Yonsei Univ, Dept Environm Engn, Wonju 220710, Gangwon, South Korea

来源：

CHEMICAL ENGINEERING JOURNAL | 2015年 / 265卷

基金：

新加坡国家研究基金会;

关键词：

Water-gas shift; Copper ferrite; Mesoporous; Alumina; Reducibility; IRON-BASED CATALYSTS; SIZED PT/CEO2 CATALYST; WGS REACTION; CO; CU; CR; NI; HYDROGEN; NANOPARTICLES; DECOMPOSITION;

D O I：

10.1016/j.cej.2014.12.045

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The present study focuses on the use of spine! ferrite (MFe2O4) catalysts (M = Ni, Co, Fe, or Cu) integrated With mesoporous alumina for the high temperature water-gas shift (WGS) reaction. Among these catalysts, copper ferrite integrated with mesoporous alumina exhibits outstanding performance. To optimize the Cu/Fe ratio in the copper ferrite catalyst, we prepared different CuxFe(3-x)O4-MA catalysts (x = 0.5, 1.0, 1.5, 2.0, or 2.5) by varying the Cu/Fe mole ratio. Of the various Cu/Fe catalysts, the 1:1 mole ratio of Cu/Fe exhibited the highest CO conversion (84%) and 100% selectivity to CO2 at a very high GHSV of 42,000 h(-1). The improved performance of the catalyst is correlated with its easier reducibility. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：100 / 109

页数：10

共 55 条

[1] Phase Transformation of Iron Oxide Nanoparticles by Varying the Molar Ratio of Fe2+:Fe3+ [J].

Alibeigi, Samaneh ;

Vaezi, Mohammad Reza .

CHEMICAL ENGINEERING & TECHNOLOGY, 2008, 31 (11) :1591-1596

[2] IRON-BASED CATALYSTS FOR THE WATER-GAS SHIFT REACTION PROMOTED BY 1ST-ROW TRANSITION-METAL OXIDES [J].

ANDREEV, A ;

IDAKIEV, V ;

MIHAJLOVA, D ;

SHOPOV, D .

APPLIED CATALYSIS, 1986, 22 (02) :385-387

[3]

[Anonymous], 2009, Int. J. Theor. Appl. Sci.

[4] The effect of chemical states of dopants on the microstructures and band gaps of metal-doped ZrO2 thin films at different temperatures [J].

Chang, SM ;

Doong, RA .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (46) :18098-18103

[5]

Chinchen G.C., 1982, EUR PAT APPL

[6] Single crystalline magnetite, maghemite, and hematite nanoparticles with rich coercivity [J].

Dar, M. Ibrahim ;

Shivashankar, S. A. .

RSC ADVANCES, 2014, 4 (08) :4105-4113

[7] An environmental friendly dopant for the high-temperature shift catalysts [J].

de Araújo, GC ;

Rangel, MD .

CATALYSIS TODAY, 2000, 62 (2-3) :201-207

[8]

Feng M., 2010, J APPL PHYS, V107

[9] Determination of the Electronic Structure and UV-Vis Absorption Properties of (Na2-xCux)Ta4O11 from First-Principle Calculations [J].

Harb, Moussab ;

Masih, Dilshad ;

Ould-Chikh, Samy ;

Sautet, Philippe ;

Basset, Jean-Marie ;

Takanabe, Kazuhiro .

JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 117 (34) :17477-17484

[10] Enhanced Fe2O3 Reducibility via Surface Modification with Pd: Characterizing the Synergy within Pd/Fe Catalysts for Hydrodeoxygenation Reactions [J].

Hensley, Alyssa J. R. ;

Hong, Yongchun ;

Zhang, Renqin ;

Zhang, He ;

Sun, Junming ;

Wang, Yong ;

McEwen, Jean-Sabin .

ACS CATALYSIS, 2014, 4 (10) :3381-3392

← 1 2 3 4 5 6 →