催化学报

催化学报 ›› 2011, Vol. 32 ›› Issue (2): 235-239.DOI: 10.1016/S1872-2067(10)60170-2

• 研究快讯 • 上一篇    下一篇

用Dawson 型聚氧钨酸乳液催化氧化燃油超深度脱硫

张永娜 1,2, 王璐 1,2, 张玉良 1,2, 蒋宗轩 1, 李灿 1   

  1. 1中国科学院大连化学物理研究所催化基础国家重点实验室, 辽宁大连 116023; 2 中国科学院研究生院, 北京 100049
  • 收稿日期:2010-11-19 修回日期:2010-12-29 出版日期:2011-01-26 发布日期:2014-06-25

Ultra-deep Oxidative Desulfurization of Fuel Oil Catalyzed by Dawson-Type Polyoxotungstate Emulsion Catalysts

ZHANG Yongna1,2, WANG Lu1,2, ZHANG Yuliang1,2, JIANG Zongxuan1,#, LI Can1,*   

  1. 1State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning China; 2Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2010-11-19 Revised:2010-12-29 Online:2011-01-26 Published:2014-06-25

PDF

1085

被引次数

10

摘要： 合成了 Dawson 型聚氧钨酸乳液催化剂 Q18P2W18, Q18P2W17, 和 Q18P2W12. 采用红外光谱和固体核磁技术对其进行了表征, 并用于温和条件下 H2O2 氧化 4,6-二甲基二苯并噻吩 (4,6-DMDBT)、二苯并噻吩 (DBT)、苯并噻吩 (BT) 和 2,5-二甲基噻吩 (2,5-DMT) 等含硫化合物的反应中. 结果表明, 各催化剂的活性大小顺序为Q18P2W12> Q18P2W17 >  Q18P2W18. 含硫化合物的氧化活性顺序为 DBT > 4,6-DMDBT > BT > 2,5-DMT. 在 60 oC 反应 30 min 内, Q18P2W12 催化剂能够催化氧化 BT 完全转化成相应的砜.

关键词: Dawson 型, 聚氧钨酸盐, 乳液催化剂, 氧化脱硫

Abstract: The Dawson-type polyoxotungstate emulsion catalysts Q18P2W18, Q18P2W17, and Q18P2W12 were successfully synthesized and characterized by IR and 31P MAS NMR. They were used for the oxidation of sulfur-containing compounds such as 4,6-dimethyldibenzothiophene (4,6-DMDBT), dibenzothiophene (DBT), benzothiophene (BT), and 2,5-dimethythiophene (2,5-DMT) with H2O2 as an oxidant under mild conditions. The activity of the catalysts decreased in the order: Q18P2W12 > Q18P2W17 > Q18P2W18. The oxidative reactivity of the sulfur-containing compounds decreased according to DBT > 4,6-DMDBT > BT > 2,5-DMT. BT was completely oxidized into the corresponding sulfone upon catalysis by Q18P2W12 at 60 °C for 30 min.

Key words: Dawson-type, polyoxotungstate, emulsion catalyst, oxidative desulfurization