Reversible deactivation of TiO2 in CS2 conversion associated with Claus reaction

被引：11
|
作者：
Clark, P. D. [1 ]
Dowling, N. I. [1 ]
Huang, M. [1 ]
机构：
[1] Univ Res Ctr, Alberta Sulphur Res Ltd, Calgary, AB T2L 2K8, Canada
来源：
APPLIED CATALYSIS A-GENERAL | 2008年 / 343卷 / 1-2期
关键词：
Titania; CS2; conversion; reversible deactivation; Claus reaction;
D O I：
10.1016/j.apcata.2008.03.031
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：
CS2 destruction is an important reaction in industrial Claus process. A reversible deactivation over titania in CS2 conversion has been found in this laboratory. This deactivation is closely related to the presence of Claus reaction. The key intermediate species of Claus reaction is thiosulfate anion, S2O32-, which further reacts with Bronsted acid of titania to form surface polythionates. The long S chain of the latter would shield the active centers responsible for CS2 Conversion and causes the deactivation, while these polythionates can be easily destroyed by heating at 330 degrees C, which is finally accompanied by a recovery of catalytic activity in CS2 conversion. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：104 / 108
页数：5
相关论文
共 50 条
  • [21] Photoinduced reversible shape conversion of silver nanoparticles assisted by TiO2
    Tang, Bin
    Zhang, Mingwen
    Yao, Ya
    Sun, Lu
    Li, Jingliang
    Xu, Shuping
    Chen, Wu
    Xu, Weiqing
    Wang, Xungai
    [J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2014, 16 (40) : 21999 - 22007
  • [22] Conversion of CS2 to thioaldehyde at a single iron center
    Cromhout, NL
    Gallagher, JF
    Manning, AR
    Paul, A
    [J]. ORGANOMETALLICS, 1999, 18 (07) : 1119 - 1121
  • [23] CS2在TiO2表面的多相光化学反应研究
    沈建东
    焦荔
    洪盛茂
    杨乐
    王成臣
    张士成
    陈建民
    [J]. 环境化学, 2011, 30 (01) : 378 - 385
  • [24] The research on the deactivation mechanism of TiO2 nanotube
    Liu, Cuiyun
    Tan, Shuai
    Fu, Dafang
    [J]. DESALINATION AND WATER TREATMENT, 2016, 57 (58) : 28386 - 28392
  • [25] ROLE OF ATOMIC SULFUR IN O + CS2 REACTION
    CUPITT, LT
    GAMBLE, WL
    [J]. IEEE JOURNAL OF QUANTUM ELECTRONICS, 1975, 11 (08) : 700 - 701
  • [26] REACTION OF CS2 WITH OH - A QUANTUM CHEMICAL STUDY
    LUNELL, S
    HUANG, MB
    SAHETCHIAN, KA
    CHACHATY, C
    ZABEL, F
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1990, (14) : 949 - 951
  • [27] TiO2 and F-TiO2 photocatalytic deactivation in gas phase
    El-Alami, W.
    Garzon Sousa, D.
    Diaz Gonzalez, J. M.
    Fernandez Rodriguez, C.
    Gonzalez Diaz, O.
    Dona Rodriguez, J. M.
    El Azzouzi, M.
    Arana, J.
    [J]. CHEMICAL PHYSICS LETTERS, 2017, 684 : 164 - 170
  • [28] REACTIVITY OF ARYLAZOMETHYLENETRIPHENYLPHOSPHORANES TOWARDS ELECTROPHILES - REACTION WITH CS2
    ALEMAGNA, A
    DELBUTTERO, P
    LICANDRO, E
    MAIORANA, S
    TRAVE, B
    [J]. TETRAHEDRON, 1984, 40 (06) : 971 - 976
  • [29] Analysis and Life Evaluation of CS2 Reaction Tube
    Li, Zhenxin
    Ding, Xiaofei
    Xie, Zhongdong
    Yang, Xiaotong
    Guan, Yiming
    [J]. 5TH ANNUAL INTERNATIONAL CONFERENCE ON MATERIAL SCIENCE AND ENGINEERING (ICMSE2017), 2018, 275
  • [30] Conversion of organic halides to disulfanes using KCN and CS2
    Abbasi, Mohammad
    Nowrouzi, Najmeh
    Borazjani, Saeedeh Ghassab
    [J]. TETRAHEDRON LETTERS, 2017, 58 (45) : 4251 - 4254
12345