英语翻译Abstract2-Methylpyridineand2-methylpiperidinestronglyinhibitedthehydrogenationpathwayinthehydrodesulfurization(HDS)ofdibenzothiophene(DBT)and4,6-dimethyldibenzothiopheneoversulfidedNiMo/γ-Al2O3,CoMo/γ-Al2O3,andMo/

Question

英语翻译
Abstract
2-Methylpyridine and 2-methylpiperidine strongly inhibited the hydrogenation pathway in the hydrodesulfurization (HDS) of dibenzothiophene
(DBT) and 4,6-dimethyldibenzothiophene over sulfided NiMo/γ -Al2O3,CoMo/γ -Al2O3,and Mo/γ -Al2O3 catalysts at 340 .C,4.8 MPa H2,and
35 kPa H2S.The direct desulfurization (DDS) pathway was inhibited by both amines over the Mo and CoMo catalysts as well,but the NiMo
catalyst showed a promotion effect in the HDS of DBT at 300 .C and at low partial amine pressure.Experiments with other amines showed that
only the more basic and stable heterocyclic amines promoted the DDS pathway of DBT over NiMo.This promoting effect of amines on NiMo is
explained by the special location of the Ni promoter atoms,on the metal edge of the MoS2 particles with low sulfur coverage.The perpendicular
adsorption of amines hinders especially the π adsorption of DBT and 4,6-dimethyldibenzothiophene and thus the hydrogenation pathway,whereas
the filling of sulfur vacancies by H2S inhibits the DDS pathway.
.2006 Elsevier Inc.All rights reserved.

Answer 1

摘要
2-甲基和2-甲基氢化通路的强烈抑制加氢脱硫(脱硫)二苯(设计基准),4,6-甲基对硫化 中NiMo/γ-氧化铝,科/γ-氧化铝、钼/γ-氧化铝催化剂,在340.三、480兆帕氢气、硫化氢和35军.直接脱硫(DDS的)通路抑制了胺的催化剂及科、钼、 但中NiMo催化剂的脱硫效果显晋升为设计基准的300.三、低偏 胺压力.实验表明,与其他胺类只有更基本稳定,促进了DDS的杂环胺通路设计基准 超过尼莫.这一促进作用胺中NiMo特别是省内启动镍原子的位置,关于二硫化钼金属颗粒边缘的低硫复盖.垂直吸附胺∏棉农特别设计基准和吸附4,6-甲基氢化通路,因此,而填补空缺的硫化氢硫抑制DDS的通路..2006Elsevier股份有限公司版权所有.