Vanadia-doped titania-pillared montmorillonite clay for the selective catalytic oxidation of H2S

被引：47

作者：

Bineesh, K. V. ^{[1
]}

Cho, D. R. ^{[1
]}

Kim, S. Y. ^{[1
]}

Jermy, B. R. ^{[1
]}

Park, D. W. ^{[1
]}

机构：

[1] Pusan Natl Univ, Dept Chem Engn, Pusan 609735, South Korea

来源：

CATALYSIS COMMUNICATIONS | 2008年 / 9卷 / 10期

基金：

新加坡国家研究基金会;

关键词：

pillared-clay; selective catalytic oxidation; anatase; impregnation;

D O I：

10.1016/j.catcom.2008.03.048

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 performance of vanadia-doped titania-pillared clay (V/Ti-PILC) in the selective catalytic oxidation of H2S was investigated in this study. A series of V/Ti-PILC with various amounts of vanadia were prepared and characterized. XRD analysis revealed the presence of titania anatase peak without any evidence of crystalline vanadia. V/Ti-PILC showed a very good catalytic performance towards H2S oxidation at temperatures ranging from 220-300 degrees C without the considerable emission of SO2. At 300 degrees C, all the catalysts showed high H2S conversion of about 85%. The H2S conversions over V/Ti-PILC increased with increasing vanadia content and temperature. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：2040 / 2043

页数：4

共 26 条

[11] SOLID-STATE V-15 NMR STRUCTURAL STUDIES ON SUPPORTED VANADIUM(V) OXIDE CATALYSTS - VANADIUM-OXIDE SURFACE-LAYERS ON ALUMINA AND TITANIA SUPPORTS [J].

ECKERT, H ;

WACHS, IE .

JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (18) :6796-6805

[12] Recent advances in the synthesis and catalytic applications of pillared clays [J].

Gil, A ;

Gandía, LM ;

Vicente, MA .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 2000, 42 (1-2) :145-212

[13] Preparation and characterization of microporous SiO2-ZrO2 pillared montmorillonite [J].

Han, YS ;

Yamanaka, S .

JOURNAL OF SOLID STATE CHEMISTRY, 2006, 179 (04) :1146-1153

[14] Oxidation of aniline over titania pillared montmorillonite clays [J].

Jagtap, Neelam ;

Ramaswamy, Veda .

APPLIED CLAY SCIENCE, 2006, 33 (02) :89-98

[15] Catalytic performance and characterization of VO2+-exchanged titania-pillared clays for selective catalytic reduction of nitric oxide with ammonia [J].

Long, RQ ;

Yang, RT .

JOURNAL OF CATALYSIS, 2000, 196 (01) :73-85

[16] Selective catalytic reduction of nitrogen oxides by ammonia over Fe3+-exchanged TiO2-pillared clay catalysts [J].

Long, RQ ;

Yang, RT .

JOURNAL OF CATALYSIS, 1999, 186 (02) :254-268

[17] Spectroscopic investigation of vanadium speciation in vanadium-doped nanocrystalline anatase [J].

Luca, V ;

Thomson, S ;

Howe, RF .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1997, 93 (12) :2195-2202

[18] Vanadium-antimony mixed oxide catalysts for the selective oxidation of H2S containing excess water and ammonia [J].

Park, DW ;

Park, BK ;

Park, DK ;

Woo, HC .

APPLIED CATALYSIS A-GENERAL, 2002, 223 (1-2) :215-224

[19] Novel non-hydrolytic synthesis of a V2O5-TiO2 xerogel for the selective catalytic reduction of NOx by ammonia [J].

Popa, AF ;

Mutin, PH ;

Vioux, A ;

Delahay, G ;

Coq, B .

CHEMICAL COMMUNICATIONS, 2004, (19) :2214-2215

[20] Ti-pillared clays: Synthesis and general characterization [J].

Romero, Amaya ;

Dorado, Fernando ;

Asencio, Isaac ;

Belen Garcia, Prado ;

Luis Valverde, Jost .

CLAYS AND CLAY MINERALS, 2006, 54 (06) :737-747

← 1 2 3 →