减压蜡油浆态床加氢工艺条件和动力学研究

石油炼制与化工 ›› 2012, Vol. 43 ›› Issue (9): 66-70.

减压蜡油浆态床加氢工艺条件和动力学研究

白锐¹,²,张传粉¹柴永明¹,刘晨光¹

1. 中国石油大学（华东）化学工程学院重质油国家重点实验室
2. 中国石化海南炼油化工有限公司

收稿日期:2012-02-03 修回日期:2012-03-28 出版日期:2012-09-12 发布日期:2012-08-29
通讯作者: 白锐 E-mail:baeeray@163.com

STUDY ON THE PROCESS CONDITIONS AND KINETICS OF SLURRY-BED HYDROGENATION PROCESSING VACUUM GAS OIL

Received:2012-02-03 Revised:2012-03-28 Online:2012-09-12 Published:2012-08-29

摘要/Abstract

摘要： 对减压蜡油的浆态床加氢工艺条件进行了评价，并考察了减压蜡油的加氢脱硫和加氢脱氮动力学。研究结果表明，最佳的蜡油加氢工艺条件为反应温度360 oC、反应压力8 MPa、催化剂加入量（w）9 %、反应时间2 h左右。动力学研究结果表明：对于加氢脱硫反应，反应初期的表观活化能为100.44 kJ/mol；反应中期到末期，表观活化能为121.72 kJ/mol，这是由于不同类型的硫化物脱硫机理不同造成的；对于加氢脱氮反应，表观活化能为105.17 kJ/mol；在反应初期含氮化合物较难脱除，而在反应后期，烷基取代的二苯并噻吩类化合物为最难脱除的化合物。

Abstract: The process conditions of slurry-bed hydrogenation processing vacuum gas oil (VGO) were investigated, and the kinetics of hydrodesulfurization (HDS) and hydrodenitrogenation (HDN) was studied as well. The results indicated that the optimal process conditions were obtained as follows: a reaction temperature of 360 oC, a reaction pressure of 8 MPa, a catalyst mass fraction of 9% and a reaction time of 2 h. Kinetics research data suggested that for HDS reactions, the apparent activation energy in the initial stage is 100.44 kJ/mol; in the final period, the apparent activation energy is 121.72 kJ/mol due to the differences in HDS mechanism of various S-containing compounds in VGO. For HDN reactions, the apparent activation energy is 105.17 kJ/mol. During the initial reaction stage, N-containing compounds are difficult to be removed, however, with the proceeding of reactions the alkyl-substituted dibenzothiophenes (R-DBTs) become the most difficult compounds to be removed.

白锐张传粉柴永明刘晨光. 减压蜡油浆态床加氢工艺条件和动力学研究[J]. 石油炼制与化工, 2012, 43(9): 66-70.

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