苯并噻吩

The structure of Benzo[1,2,5]thiadiazole is between classical thiophene and non-classical thiophene.

噻吩并噻吩和苯并二噻吩是两个最典型的非经典噻吩，而苯并噻吩的结构介于经典噻吩和非经典噻吩之间。

Among these investigated compounds, benzothiophene, dibenzothiophene and thianthrene are stable at the highest pyrolysis temperature and suggest that these compounds are geochemical stable compounds and this is consistent with that these compounds are widely existence in the mature petroleum and sedimentary organic matter.

在所调查的化合物中，苯并噻吩、二苯并噻吩、二苯硫和噻蒽等在最高热解温度下也不发生任何化学反应，表明这些化合物代表了稳定型结构的硫化合物，这与这些化合物广泛存在于成熟原油和沉积有机质中的状况是一致的。

In this paper,water-soluble ionic liquid BeS was used as extractant for sulfur compounds thiophene,2-methyl thiophene,benzothiophene,dibenzothiophene in simulated fuel and the feasible operation conditions were confirmed by extraction experiments.

选择水溶性的离子液体BeS作萃取剂，对模拟油品中的4种含硫有机物噻吩、2-甲基噻吩、苯并噻吩、二苯并噻吩进行了萃取，确定了适宜的萃取操作条件。

The sulfur compounds in VGO of SCO are mainly C3～7-dibenzothiophene,while those in FCC liquid products are short chain dibenzothiophene and a few alkylated benzothiophene and alkylated thiophene,and the percentages of these three sulfur compounds are 82.04%,13.42% and 0.56%,respectively,and they are difficult to be removed by hydrogenation.

结果表明，所含硫化物主要是C3~7-二苯并噻吩，而催化裂化反应后则以短侧链二苯并噻吩为主，还含少量烷基苯并噻吩和烷基噻吩，三者的质量分数分别为82.04%、13.42%和0.56%，均属于难以加氢脱除的含硫化合物。

The results showed that loading Ag^＋, Ni^2＋, Cu^2＋ or Zn^2＋ ion on the activated carbon obviously improved its adsorption of benzothiophene, while loading Fe^3＋ or Co^3＋ ion on the activated carbon caused a decrease in its adsorption of benzothiophene in comparison with the original unloaded activated carbon, which was due to the variation of the nature of soft and hard acid on the surface of the activated carbon.

采用密度泛函数理论法计算结果表明，苯并噻吩的电负性χ为2.638，属软碱类物质；由于Ag^＋为软酸，活性炭负载Ag^＋离子，增加了其局部表面的软酸，从而增强了对苯并噻吩硫化物的吸附；由于Ni^2＋、Cu^2＋和Zn^2＋离子属交界酸，负载Ni^2＋、Cu^2＋、Zn^2＋离子增加了活性炭表面的交界酸，也在一定程度上提高了其表面对苯并噻吩硫化物的吸附；当活性炭表面负载了硬酸性Fe^3＋或Co^3＋离子，其局部表面硬酸增大从而降低了其对苯并噻吩的吸附。

According to the statistics of the content of methyldibenzothiophenes in 112 oil samples from China, the conter of methyldibenzothiophenes in marine oil is more than that in terrestrial oil if there is no TSR in oil.

根据对中国含油气盆地112个原油样品中似甲基二苯并噻吩含量统计发现，当原油无TSR作用时，海相原油的似甲基二苯并噻吩含量要大于陆相原油；陆相原油中，盐湖相原油的似甲基二苯并噻吩含量又大于淡水湖相。

The best of them were 4c and 8d which exhibited 87% and 89% inhibition of Penicilium digitatum . And benzothieno[3,2-d]imidazol[1,2-a]pyrimidin-2,5(1H, 3H)-diones or benzothieno[3,2-d][1,2,4]triazol[1,5-a]pyrimidin-10(3H)-one only exhibited moderate inhibition.

而苯并噻吩并[3，2-d]嘧啶-4(3H)-酮和苯并噻吩并[3，2-d]咪唑并[1，2-a]嘧啶-2，5(1H，3H)-二酮以及苯并噻吩并[3，2-d][1，2，4]三唑[1，5-a]嘧啶-10(3H)-酮衍生物以及三唑醇衍生物均只表现出中等的抑制率。

And benzothieno[3,2-d]imidazol[1,2-a]pyrimidin-2,5(1H, 3H)-diones or benzothieno[3,2-d][1,2,4]triazol[1,5-a]pyrimidin-10(3H)-one only exhibited moderate inhibition.

而苯并噻吩并[3，2-d]嘧啶-4(3H)-酮和苯并噻吩并[3，2-d]咪唑并[1，2-a]嘧啶-2，5(1H，3H)-二酮以及苯并噻吩并[3，2-d][1，2，4]三唑[1，5-a]嘧啶-10(3H)-酮衍生物以及三唑醇衍生物均只表现出中等的抑制率。

The supported WP catalysts showed considerable activity in HDS reaction of dibenzothiophene and HDN reaction of quinoline. The ibenzothiophene HDS activity and quinoline HDN activity of the spported WP catalysts synthesized by co-impregnation method was better than that synthesized by mixing method. The HDS and HDN activities of 25～30% WP catalysts synthesized by co-impregnation method and reduced at 650～750℃ were better than those of the corresponding sulfurized catalyst.

负载型WP催化剂具有较好的二苯并噻吩加氢脱硫和喹啉加氢脱氮活性，共浸渍法制备的磷化钨催化剂二苯并噻吩加氢脱硫和喹啉加氢脱氮活性要高于混合法制备的磷化钨催化剂。650～750℃还原制备的负载量25～30%的浸渍法磷化钨催化剂具有较高的二苯并噻吩加氢脱硫和喹啉加氢脱氮活性，高于相应的硫化态催化剂。

The results indicated that the total hydrodesulfurization ratio of sulfur-containing compounds of FCC gasoline was 86.3%, sulfide and tetrahydrothiophene were completely conversed, the hydrodesulfurization ratio of mercaptans was 96.6%, the hydrodesulfurization ratio of thiophene was 78.8%, the hydrodesulfurization ratio of alkyl-substituted thiophene was 85.8%, the hydrodesulfurization ratio of benzothiophene was 81.4% The conversed products of 3-methylthiophene were including little sulfur specie, isomerized sulfur specie (2-methylthiophene) and larger sulfur specie (2, 5-dimethylthiophene, 2,4-dimethylthiophene, 2,3-dimethylthiophene).

结果表明FCC汽油硫化物总脱硫率为86.3%，其中，硫醚和四氢噻吩的转化率都达到100%，硫醇硫转化率96.6%，噻吩硫转化率78.8%，烷基噻吩转化率85.8%，苯并噻吩转化率81.4%。3-甲基噻吩在OTA催化剂上的转化产物中含有小分子，异构硫化物（2-甲基噻吩），以及大分子异构硫化物（如2，5-二甲基噻吩、2，4-二甲基噻吩和2，3-二甲基噻吩）。

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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。