工业装置渣油加氢失活催化剂上的金属赋存状态研究

石油炼制与化工 ›› 2019, Vol. 50 ›› Issue (7): 7-12.

工业装置渣油加氢失活催化剂上的金属赋存状态研究

刁玉霞,袁蕙,邱丽美,孙淑玲,徐广通

中国石化石油化工科学研究院

收稿日期:2018-10-19 修回日期:2018-12-10 出版日期:2019-07-12 发布日期:2019-07-25
通讯作者: 刁玉霞 E-mail:diaoyx.ripp@sinopec.com
基金资助:
中国石油化工股份有限公司合同项目

CHARARTERIZATION OF METAL DEPOSITION ON SPENT RESIDUE HYDROTREATING CATALYSTS FROM INDUSTRIAL PLANT

Diao Yuxia,Yuan Hui,Qiu Limei,Sun Shuling,Xu Guangtong

Received:2018-10-19 Revised:2018-12-10 Online:2019-07-12 Published:2019-07-25
Contact: Diao Yuxia E-mail:diaoyx.ripp@sinopec.com
Supported by:

摘要/Abstract

摘要： 以工业固定床渣油加氢失活催化剂（失活剂）为研究对象，依次采用正庚烷、甲苯对其进行索氏抽提，通过对失活催化剂上金属含量、形态及分布进行分析表征，发现金属沉积量沿着物流方向呈现降低趋势。通过Raman光谱、XPS分析表征发现，渣油加氢失活剂表面沥青质类物质含量很低。渣油加氢处理催化剂的活性相主要有3种：MoS2相、NiMoS相或CoMoS相。沉积的焦炭和金属使得催化剂暴露在外表面的活性相数量非常少。

关键词: 渣油加氢, 沉积金属, 积炭, 失活

Abstract: The spent residue hydroprocessing catalysts withdrawn from industrial plant were treated by Soxhlet extraction with n-heptane and toluene to remove soluble coke deposits and residual oil，respectively, to investigate the metal content, morphology and distribution. It was recognized that the metal deposition was gradually decreased along the reactor axial down. The low content of asphaltene on the surface of spent catalysts was revealed by Raman and XPS. The active phases of the catalyst were MoS2，NiMoS or CoMoS. The coke and metal depositions reduced the active phase on the external surface of the catalysts.

Key words: residue hydrotreating, deposited metal, coke deposition, deactivation

中图分类号:

刁玉霞袁蕙邱丽美孙淑玲徐广通. 工业装置渣油加氢失活催化剂上的金属赋存状态研究[J]. 石油炼制与化工, 2019, 50(7): 7-12.

Diao Yuxia Yuan Hui Qiu Limei Sun Shuling Xu Guangtong. CHARARTERIZATION OF METAL DEPOSITION ON SPENT RESIDUE HYDROTREATING CATALYSTS FROM INDUSTRIAL PLANT[J]. Petroleum Processing and Petrochemicals, 2019, 50(7): 7-12.

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