%0 Journal Article
%T Mutual influences of hydrodesulfurization of dibenzothiophene and hydrodenitrogenation of indole over NiMoS/y-Al2O3 catalyst<br>二苯并噻吩和吲哚在NiMoS/γ-Al2O3上加氢脱硫和加氢脱氮反应的相互影响
%A Chun-e XIANG
%A Yong-ming CHAI
%A Yun-qi LIU
%A Chen-guang LIU
%A <br>相春娥
%A 柴永明
%A 柳云骐
%A 刘晨光
%J 燃料化学学报
%D 2008
%I 
%X The influence of indole on the hydrodesulfurization (HDS) of dibenzothiophene (DBT) and the influence of DBT on the hydrodenitrogenation (HDN) of indole were investigated over a presulfided NiMoS/γ-Al2O3 catalyst in a fixed-bed high-pressure microreactor. A significant negative effect of indole on the HDS of DBT was observed. The inhibitory effect of indole on the hydrogenation route (HYD) was stronger than on the direct desulfurization route (DDS). Indole and its HDN intermediate products suppressed HDS of DBT through the competitive adsorption on active sites of the catalyst. DBT and H2S produced in situ promoted the conversion of coordinatively unsaturated sites (CUS) to Br nsted acid sites on the catalyst surface, which in turn facilitated the cleavage of C(sp3)—N bond in indoline; the conversion of indole and the relative concentration of o-ethylanline (OEA) then increased. Although the presence of sulfur atoms is essential for the formation of active sites on the catalyst for HDN, a small amount of sulfur species is sufficient to maintain the HDN active sites; higher content of sulfides may bring on a negative influence on the HDN of indole.
%K NiMoS/γ
%K -Al2O3
%K hydrodesulfurization
%K hydrodenitrogenation
%K dibenzothiophene
%K indole
%K in situ produced H2S
%K mutual influence<br>NiMoS/&gamma
%K -Al2O3
%K 加氢脱硫
%K 加氢脱氮
%K 二苯并噻吩
%K 吲哚
%K 原位生成的H2S
%K 相互影响
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=C6AB115B41BD2F1616ECDB095B69B8ED&aid=E5BC1B5BC37ED60644E2F0330278FBE1&yid=67289AFF6305E306&vid=933658645952ED9F&iid=B31275AF3241DB2D&sid=47122BA7BE181C5A&eid=DC2727B6AC017B3F&journal_id=0253-2409&journal_name=燃料化学学报&referenced_num=0&reference_num=3