Summary of application of catalyst grading technology in hydrocracking unit

Petroleum Refinery Engineering ›› 2025, Vol. 55 ›› Issue (1): 45-48.

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Summary of application of catalyst grading technology in hydrocracking unit

Yang Chengyi

SINOPEC Hainan Refining & Chemical Co., Ltd., Yangpu, Hainan 578101

Received:2024-08-04 Online:2025-01-16 Published:2025-02-08

催化剂级配技术在加氢裂化装置应用总结

杨成艺

中国石化海南炼油化工有限公司，海南洋浦 578101

作者简介:杨成艺，工程师，本科，毕业于中国石油大学（北京）化学工程与工艺专业，主要从事炼化工艺技术管理工作。联系电话：0898-28820655，E-mail：yangcy.hnlh@sinopec.com。

Abstract

Abstract:

This article introduces the industrial practice of the FC-76/FC-80 catalyst grading scheme developed by SINOPEC (Dalian) Research Institute of Petroleum and Petrochemicals Co., Ltd. in the hydrocracking unit of SINOPEC Hainan Refining & Chemical Co., Ltd. A comparative analysis was conducted on the calibration data of two cycles. The results show that with a significant increase in mass space velocity, the reaction temperature of the hydrotreating reactor decreased by 10.26℃, the total temperature rise increased by 3.39℃, and the nitrogen content of the refined oil met the requirements of the indicators. The reaction temperature of the cracking reactor was equivalent to the previous cycle, and the total temperature rise has increased by 5.38℃. The yield of heavy naphtha increased by 3.62 percentage points, and the mass fraction of cycloalkanes reached over 42%, making it a high-quality continuous reforming feedstock. The tail oil yield increased by 6.62 percentage points, and the tail oil BMCI value is 12.79. This scheme not only meets the feedstock requirements of the downstream ethylene unit but also takes into account the yield of heavy naphtha.

Key words: catalyst grading, hydrocracking unit, FC-76, FC-80, heavy naphtha, cycloalkane, tail oil, BMCI value

摘要：

介绍了中国石化（大连）石油化工研究院有限公司研发的催化剂FC-76/FC-80级配方案在中国石化海南炼油化工有限公司加氢裂化装置的工业实践情况。对比分析了两个周期的标定数据，结果表明，在质量空速明显提高的情况下：加氢精制反应器反应温度降低了10.26℃，总温升提高了3.39℃，精制油氮含量满足指标要求；裂化反应器反应温度与上个周期相当，总温升提高了5.38℃；重石脑油收率提高了3.62个百分点，环烷烃质量分数在42%以上，是优质的连续重整原料；尾油收率提高了6.62个百分点，BMCI值12.79。该方案既满足了下游乙烯装置的原料需求，又兼顾了重石脑油收率。

关键词: 催化剂级配, 加氢裂化装置, FC-76, FC-80, 重石脑油, 环烷烃, 尾油, BMCI值

Yang Chengyi. Summary of application of catalyst grading technology in hydrocracking unit[J]. Petroleum Refinery Engineering, 2025, 55(1): 45-48.

杨成艺. 催化剂级配技术在加氢裂化装置应用总结[J]. 炼油技术与工程, 2025, 55(1): 45-48.

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Summary of application of catalyst grading technology in hydrocracking unit

催化剂级配技术在加氢裂化装置应用总结

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