分子筛对CoMoP/Al2O3催化剂加氢脱硫反应性能的影响

›› 2019, Vol. 50 ›› Issue (1): 1-7.

• 催化剂 • 下一篇

分子筛对CoMoP/Al2O3催化剂加氢脱硫反应性能的影响

刘诗哲,李明丰,张乐,杨平,李大东

中国石化石油化工科学研究院

收稿日期:2018-04-24 修回日期:2018-07-28 出版日期:2019-01-12 发布日期:2019-01-29
通讯作者: 李明丰 E-mail:limf.ripp@sinopec.com
基金资助:
国家重点研发计划项目

EFFECT OF ZEOLITE ON HYDRODESULFURIZATION PERFORMANCE OF CoMoP/Al2O3 CATALYST

Received:2018-04-24 Revised:2018-07-28 Online:2019-01-12 Published:2019-01-29
Contact: Li Mingfeng E-mail:limf.ripp@sinopec.com

摘要/Abstract

摘要： 以USY分子筛为酸性组分，制备了含分子筛的CoMoP/Al2O3加氢催化剂，通过N2吸附-脱附、吡啶吸附红外光谱、X射线光电子能谱（XPS）和高分辨透射电镜（HRTEM）等表征手段对分子筛及催化剂样品的物化性质进行分析，并采用固定床高压微反装置考察了4,6-二甲基二苯并噻吩的加氢脱硫反应。结果表明，与CoMoP/Al2O3催化剂相比，USY分子筛的加入显著提高了4,6-二甲基二苯并噻吩的转化率和脱硫率，同时改变了加氢脱硫反应的产物分布。在CoMoP/Al2O3-Y催化剂上，烷基转移和裂化等酸催化反应活性显著提高，直接脱硫路径的活性相当，加氢路径的活性降低。

关键词: 分子筛, CoMoP催化剂, 加氢脱硫, 4,6-二甲基二苯并噻吩

Abstract: CoMoP/Al2O3-Y catalysts with USY zeolite as an acidic component were prepared. The samples were characterized by N2 adsorption-desorption, pyridine-FTIR, X-ray photoelectron spectra (XPS) and high-resolution transmission electron microscopy (HRTEM) techniques. The hydrodesulfurization performance of 4, 6-dimethyldibenzothiophene was evaluated over CoMoP/Al2O3-Y catalyst in a high pressure fixed-bed reactor. The results showed that compared with CoMoP/Al2O3, the introduction of USY zeolite significantly improves the conversion and S-removal rate, and changes the HDS product distribution. The transalkylation and cracking activities of CoMoP/Al2O3-Y catalyst increase substantially, the direct desulfurization activity is comparable in activity, however, the activity of hydrogenation route decreases over CoMoP/Al2O3-Y catalyst.

Key words: Zeolite, CoMoP catalyst, hydrodesulfurization, 4,6-dimethyldibenzothiophene

刘诗哲李明丰张乐杨平李大东. 分子筛对CoMoP/Al2O3催化剂加氢脱硫反应性能的影响[J]. , 2019, 50(1): 1-7.

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分子筛对CoMoP/Al2O3催化剂加氢脱硫反应性能的影响

EFFECT OF ZEOLITE ON HYDRODESULFURIZATION PERFORMANCE OF CoMoP/Al2O3 CATALYST

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