Study on hydrodesulfurization mechanism of 4,6-dimethyldibenzothiophene I. Catalytic behavior of NiW-based catalysts
文献类型：期刊论文
| 作者 | Zuo, DH; Xie, YP; Nie, H; Shi, YH; Li, C |
| 刊名 | chinese journal of catalysis
 |
| 出版日期 | 2002-05-01 |
| 卷号 | 23期号:3页码:271-275 |
| 关键词 | nickel tungsten alumina silica supported catalyst 4 hydrodesulfurization isomerization 6-dimethyldibenzothiophene |
| 英文摘要 | niw-based catalysts supported on gamma-al2o3, amorphous silica-alumina and rare earth hy zeolite-containing gamma-al2o3, respectively, were prepared by incipient wetness co-impregnation method. hydrodesulfurization (hds) of 4, 6-dimethyldibenzothiophene (dmdbt) was performed in a continuous flow microreactor under the conditions of p = 4.14 mpa and theta = 270 similar to 330 degreesc. the dmdbt was dissolved in decane to obtain 0.1% sulfur solution. the liquid products were analyzed by gc-fid equipped with a capillary column. the results showed that the niw-based catalysts exhibit better performance for desulfurization and hydrogenation of dmdbt, and the main product is dimethylcyclohexylbenzene with selectivity of 59.4%. the enhancement of hydrogenation activity is the most effective way to increase hds activity. the enhancement of support acidity favors direct desulfurization and leads to a small amount of cracking products. niw catalysts on acidic supports can transform dmdbt into isomers by migrating methyl groups adjacent to the s atom, which also favors desulfurization of dmdbt. however, their hydrogenation activity is inferior to that of alumina-supported sample. based on the experimental results, the different reaction pathways of dmdbt transformation were proposed. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, applied ; chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | deep hydrodesulfurization ; light oil ; substituted dibenzothiophenes ; supported sulfides ; sulfur-compounds ; molybdenum ; alkyldibenzothiophenes ; desulfurization ; functionalities ; complexes |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000176236500018 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/139152]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.SINOPEC, Res Inst Petr Proc, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zuo, DH,Xie, YP,Nie, H,et al. Study on hydrodesulfurization mechanism of 4,6-dimethyldibenzothiophene I. Catalytic behavior of NiW-based catalysts[J]. chinese journal of catalysis,2002,23(3):271-275. |
| APA | Zuo, DH,Xie, YP,Nie, H,Shi, YH,&Li, C.(2002).Study on hydrodesulfurization mechanism of 4,6-dimethyldibenzothiophene I. Catalytic behavior of NiW-based catalysts.chinese journal of catalysis,23(3),271-275. |
| MLA | Zuo, DH,et al."Study on hydrodesulfurization mechanism of 4,6-dimethyldibenzothiophene I. Catalytic behavior of NiW-based catalysts".chinese journal of catalysis 23.3(2002):271-275. |
入库方式： OAI收割
来源：大连化学物理研究所
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