载体性质对加氢脱硫催化剂性能的影响

石油炼制与化工 ›› 2021, Vol. 52 ›› Issue (4): 8-14.

载体性质对加氢脱硫催化剂性能的影响

孙进,郭蓉,姚运海,刘丽,李扬

中国石化大连石油化工研究院

收稿日期:2020-09-10 修回日期:2020-11-17 出版日期:2021-04-12 发布日期:2021-03-30
通讯作者: 孙进 E-mail:sunjin.fshy@sinopec.com
基金资助:
国家重点研发计划资助

EFFECT OF SUPPORT PROPERTIES ON PERFORMANCE OF HYDRODESULFURIZATION CATALYST

Sun Jin,Guo Rong,Yao Yunhai,Liu Li,Li Yang

Received:2020-09-10 Revised:2020-11-17 Online:2021-04-12 Published:2021-03-30
Contact: Sun Jin E-mail:sunjin.fshy@sinopec.com

摘要/Abstract

摘要： 以十六烷基三甲基溴化铵（CTAB）为模板剂合成大孔径氧化铝粉，并由之制备氧化铝载体。同时，以普通氧化铝粉中添加石墨为模板剂（简称石墨模板剂）制备大孔径氧化铝载体和以单独的普通氧化铝粉制备载体（简称普通氧化铝载体）。将这3种载体及由其制备的Mo-Co型加氢处理催化剂进行表征分析和活性评价对比试验。通过BET比表面积测试、扫描电子显微镜（SEM）和NH3程序升温脱附（NH3-TPD）等手段表征发现，采用CTAB模板剂和石墨模板剂均可制备成孔径和孔体积高于普通氧化铝载体的大孔径氧化铝载体，但由石墨模板剂制备的载体表面羟基和酸量低于由CTAB模板剂制备的载体和普通氧化铝载体。对以这3种载体制备的催化剂进行硫化，并进行对比分析和活性评价试验，结果表明，采用CTAB模板剂制备的载体所制催化剂的硫化度最高，多层活性相晶片数目也最多，加氢脱硫活性最好。

关键词: 加氢脱硫, 催化剂, 载体, 十六烷基三甲基溴化铵, 石墨

Abstract: The macroporous alumina powder was synthesized by using CTAB as a template，and then used to prepare alumina support. Other two macroporous alumina supports was prepared using ordinary alumina powder with or without adding graphite as a template. Three CoMo catalysts were prepared by using these supports. The properties and activities of these catalysts were tested by BET adsorption，SEM，NH3-TPD techniques,and so on. The results showed that both the CTAB template and the graphite template can be used to prepare macroporous alumina supports. But the amounts of surface hydroxyl group and acid of the support prepared by the graphite template are lower than the supports prepared using CTAB template and ordinary alumina powder. The HDS performance test showed that the sulfidation degree of the catalyst made from the support prepared by CTAB template was the highest, meanwhile had the maximum layers of the active phase slab and the best HDS activity.

Key words: hydrodesulfurization, catalyst, support, CTAB, graphite

孙进郭蓉姚运海刘丽李扬. 载体性质对加氢脱硫催化剂性能的影响[J]. 石油炼制与化工, 2021, 52(4): 8-14.

Sun Jin Guo Rong Yao Yunhai Liu Li Li Yang. EFFECT OF SUPPORT PROPERTIES ON PERFORMANCE OF HYDRODESULFURIZATION CATALYST[J]. PETROLEUM PROCESSING AND PETROCHEMICALS, 2021, 52(4): 8-14.

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