石油与天然气化工2026，Vol.55Issue(3)：30-36,7.DOI:10.3969/j.issn.1007-3426.2026.03.004
催化裂化催化剂钙中毒的影响与对策
Effects and countermeasures of calcium poisoning on fluid catalytic cracking catalysts
郭翠翠 1王涛 1李志强 2王汉坤 2吴俊银 2钟伟2
作者信息
- 1. 青岛惠城环保科技集团股份有限公司
- 2. 中海(东营)石化有限公司
- 折叠
摘要
Abstract
Objective This study aims to address the significant reduction in heavy oil cracking capacity and repeated fouling of the slurry steam generator caused by catalyst calcium poisoning in a fluid catalytic cracking(FCC)unit.Method The phenomena,causes,and mechanisms of catalyst calcium poisoning in the unit were analyzed.Measures such as injecting an in-situ crystallized heavy oil catalytic cracking catalyst,using high-quality equilibrium catalysts as replacements,and applying crude oil decalcifying agents were implemented to address the calcium poisoning problem at its source.Result First,after injecting 20 wt%in-situ crystallized heavy oil catalytic cracking catalyst,the heavy oil cracking capacity was significantly improved even when the calcium mass fraction in the equilibrium catalyst remained around 10,000 μg/g.Second,after using crude oil decalcifying agents,the fouling problem in the slurry steam generator was resolved when the calcium mass fraction in the equilibrium catalyst decreased to 4,000 μg/g.Conclusion When calcium poisoning occurs in the FCC catalyst,injecting an in-situ crystallized heavy oil catalytic cracking catalyst and using high-quality equilibrium catalysts as replacements can mitigate low heavy oil conversion.The use of crude oil decalcifying agents can fundamentally resolve and prevent catalyst calcium poisoning.关键词
催化裂化/钙中毒/原位晶化型重油催化裂化催化剂/平衡催化剂/原油脱钙剂/油浆Key words
fluid catalytic cracking/calcium poisoning/in-situ crystallized heavy oil catalytic cracking catalyst/equilibrium catalyst/crude oil decalcifying agent/slurry oil引用本文复制引用
郭翠翠,王涛,李志强,王汉坤,吴俊银,钟伟..催化裂化催化剂钙中毒的影响与对策[J].石油与天然气化工,2026,55(3):30-36,7.
