摘要：The hydrodenitrogenation (HDN) performance of a Chinese coker gas oil (CGO) was tested in a micro-fixed bed reactor over a nickeltungsten supported on citric-treated Y zeolite mixed with a titaniasilica composite catalyst (NiW/CYCTS) within the temperature range of 360-420 degrees C, operating pressure range of 5.0-8.0 MPa, liquid hour space velocity (LHSV) range of 0.52 h(-1), H-2/CGO ratio range of 400-1200 (v/v), and H2S concentration range of 1-5 wt.%. The effects of these parameters on the relative conversions of total nitrogen (TN), basic nitrogen (BN), and non-basic nitrogen (NBN) compounds were determined. The conversion of TN compounds enhanced as the temperature and operating pressure increased and as LHSV decreased. BN compounds were easier to be removed than NBN compounds; they were also affected more significantly by the reaction conditions. With increasing H2/CGO ratio, the conversion of BN and NBN compounds initially increased and then decreased thereafter. This finding may be attributed to the addition of phenyl-sulfide (PHS) in the feedstock. The kinetic study of the HDN reaction showed that TN, BN, and NBN compounds accorded with the pseudo-first-order kinetic model. The calculation of the rate constants and activation energies indicated that the HDN of NBN compounds controlled the removal of TN compounds. Moreover, the hydrogenation of N-heterocyclic was the controlling step for the conversion of NBN compounds. The results above can guide the development of CGO hydrotreating catalyst. With the information from this paper, the development of CGO hydrotreating catalyst can adjust the properties of the catalyst by decided technology which will favor the removal of NBN containing compounds. (C) 2014 Elsevier B.V. All rights reserved.

关键字：Coker gas oil Basic nitrogen compounds Non-basic nitrogen compounds Hydrodenitrogenation Kinetics

ISSN号：0378-3820

卷、期、页：卷: 129 页: 76-84

发表日期：2015-01-01

期刊分区（SCI为中科院分区）：二区

收录情况：SCI（科学引文索引印刷版）,ESI（基本科学指标数据库）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：FUEL PROCESSING TECHNOLOGY

参与作者：庄庆发

通讯作者：温世昌,陶秀娟,张涛

第一作者：魏强,周亚松,徐春明

论文类型：期刊论文

论文概要：魏强,温世昌,陶秀娟,张涛,周亚松,庄庆发,徐春明，Hydrodenitrogenation of basic and non-basic nitrogen-containing compounds in coker gas oil，FUEL PROCESSING TECHNOLOGY，2015，卷: 129 页: 76-84

论文题目：Hydrodenitrogenation of basic and non-basic nitrogen-containing compounds in coker gas oil