摘要：The effect of sulfur-containing compounds on the hydrodenitrogenition (HDN) of o-propylaniline (OPA), decahydroquinoline (DHQ), 1,2,3,4-tetrahydroquinoline (14THQ) were performed at a moderate reaction conditions over NiMo/Al2O3 catalysts in a fixed-bed reactor, respectively. The presence of DMDS and DBT, converting CUS into sulfur sites (S^2- and SH- group), could accelerate the ring-opening reaction (Csp3-N bond cleavage) of DHQ/14THQ while inhibit the direct denitrogenation (Csp2-N bond cleavage) of OPA, indicating that the Csp3-N bond cleavage of DHQ/14THQ would require the synergistic work of S^2- and SH- group, but while the Csp2-N bond cleavage of OPA would take place on the CUS. An inhibitory effect of sulfur-containing compounds on the HDN of 14THQ was also observed. It could be ascribed to that the selectivity of 14THQ → OPA → PB/PCHA pathway in HDN of 14THQ was enhanced. However, the conversion of OPA is rather difficult for the reason that the inhibitory effect on the Csp2-N bond cleavage and the competitive adsorption from DHQ and 14THQ. The conversion of OPA, which is a "dead end" in the presence of sulfur-containing compounds, determines the limitation HDN conversion of 1,2,3,4-tetrahydroquinoline.
© 2020 Elsevier Ltd

ISSN号：0016-2361

卷、期、页：v 277,

发表日期：2020-10-01

影响因子：5.578500

期刊分区（SCI为中科院分区）：二区

收录情况：SCIE（科学引文索引网络版）,EI（工程索引）

发表期刊名称：Fuel

通讯作者：张鹏飞,张荣勋,范夏韵,刘晓东

第一作者：周亚松,魏强

论文类型：期刊论文

论文概要：张鹏飞,周亚松,张荣勋,范夏韵,魏强,刘晓东，Effect of sulfur compounds on the hydrodenitrogenation of 1,2,3,4-tetrahydroquinoline and its intermediates over NiMo/Al2O3 catalyst，Fuel，2020，v 277,

论文题目：Effect of sulfur compounds on the hydrodenitrogenation of 1,2,3,4-tetrahydroquinoline and its intermediates over NiMo/Al2O3 catalyst