Analysis and Solution of Iron Poisoning in Catalytic Cracking Catalyst

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Abstract Catalytic cracking (FCC) is one of the most important means of crude oil secondary processing, is the key unit to produce light oil and increase economic income in refinery. The stable operation of FCC unit directly affects the economic benefit of refinery. Aiming at the problem of poor product distribution in catalytic unit of a refinery, the properties of raw materials, the properties of balancing agents and the evaluation of balancing agents were analyzed systematically. The results showed that the heavy metal poisoning was caused by the high content of iron ion in the raw material. By increasing the reaction temperature, reducing the processing capacity, increasing the amount of fresh agent, quickly replacing the high-quality balance agent, increasing the sample analysis frequency, and using the anti-iron pollution catalyst, etc. the adverse effect caused by high iron content in raw material was alleviated. Reference solutions for other refineries in case of iron poisoning were provided.

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	Articles by authors
	Li Xueli
	Duan Hongchang
	Tan Zhengguo
	Pan Zhishuang
	Zhang Xianrui

Keywords： catalytic cracking； balancing agent； product distribution； iron poisoning； solution

Received 2020-09-14;

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Li Xueli, Duan Hongchang, Tan Zhengguo, Pan Zhishuang, Zhang Xianrui.Analysis and Solution of Iron Poisoning in Catalytic Cracking Catalyst[J] Chemcial Industry and Engineering, 2021,V38(4): 37-43

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