研究了TS-1/过氧化氢催化体系中几种典型有机硫化物的选择氧化脱除.结果表明,噻吩和2-甲基噻吩仅在水或叔丁醇溶剂中才能被有效氧化脱除,且两者的反应历程不同.噻吩分子中的硫原子先被氧化,2-甲基噻吩分子中的噻吩环先被氧化.当过氧化氢与硫化物摩尔比为4时,噻吩和2-甲基噻吩均可被氧化为硫酸.采用甲醇、乙腈和水作溶剂时,甲基硫醚和丁基硫醇均可被选择氧化脱除.由于存在空间位阻,苯并噻吩、二苯并噻吩及4,6-二甲基二苯并噻吩在TS-1/过氧化氢体系中均不能被有效脱除.
参考文献
[1] | Yang RT.;Hernandez-Maldonado AJ.;Yang FH. .Desulfurization of transportation fuels with zeolites under ambient conditions[J].Science,2003(5629):79-81. |
[2] | Hernandez-Maldonado A J;Yang R T .[J].Industrial and Engineering Chemistry Research,2003,42(01):123. |
[3] | Ma X L;Sun L;Song Ch Sh .[J].Catalysis Today,2002,77(1-2):107. |
[4] | Levy R E.In:Proceedings of European Refinery Technology Conference (ERTC),7th Annual Meeting.Paris[M].,2002 |
[5] | Zannikos F;Lois E;Stournas S .[J].Fuel Processing Technology,1995,42(01):35. |
[6] | Otsuki S;Nonaka T;Takashima N;Qian W,Ishihara A,Imai T,Kabe T .[J].Energy and Fuels,2000,14(06):1232. |
[7] | Te M;Fairbridge C;Ring Z .[J].Applied Catalysis A:General,2001,219(1-2):267. |
[8] | Yazu K;Yamamoto Y;Furuya T;Miki K,Ukegawa K .[J].Energy and Fuels,2001,15(06):1535. |
[9] | Bonde S E;Gore W;Dolbear G E;Prepr-Am Chem Soc .[J].Division of Petroleum Chemistry,1999,44(02):199. |
[10] | 孙刚,夏道宏.金属盐对轻质油品氧化脱硫效果的影响[J].燃料化学学报,2001(06):509-513. |
[11] | Mei H;Meil B W;Yen T F .[J].FUEL,2003,82(04):405. |
[12] | Hulea V.;Bousquet J.;Fajula F. .Mild oxidation with H2O2 over Ti-containing molecular sieves - A very efficient method for removing aromatic sulfur compounds from fuels[J].Journal of Catalysis,2001(2):179-186. |
[13] | Shiraishi Y;Hirai T;Komasawa I .[J].Journal of Chemical Engineering of Japan,2002,35(05):489. |
[14] | Reddy R S;Reddy J S;Kumar R;Kumar P.[J].Journal of the Chemical Society,Chemical Communications,1992(01):84. |
[15] | Li G;Guo X W;Wang X Sh;Zhao Q,Bao X H,Han X W,Lin L W .[J].Applied Catalysis A:General,1999,185(01):11. |
[16] | tumpf A;Tolvaj K;Juhasz M .[J].Journal of Chromatography A,1998,819(1/2):67. |
[17] | Coffey S.Rodd's Chemistry of Carbon Compounds.Vol.Ⅳ[J].New York:Elsevier Science,1973:241. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%