催化裂化装置烟气轮机结垢物的原因分析及预防措施

doi:10.3969/j.issn.1006-8805.2022.02.013

Petro-chemical Equipment Technology ›› 2022, Vol. 43 ›› Issue (2): 59-62.doi: 10.3969/j.issn.1006-8805.2022.02.013

• INSPECTION AND MAINTENANCE TECHNOLOGY • Previous Articles

Cause Analysis and Preventive Measures of Scaling in Catalytic Cracking Flue Gas Turbine

Cheng Guangjian, Li Xue, Li Zhiyu, Yu Hao

PetroChina Liaoyang Petrochemical Company, Liaoyang, Liaoning, 111003

Received:2021-10-15 Accepted:2022-02-28 Online:2022-03-15 Published:2022-03-15
Contact: Li Xue E-mail:chengguangjian@petrochina.com.cn

Abstract

Abstract: Flue gas turbine is the core equipment of waste heat recovery system of catalytic cracking unit. It is directly related to the smooth operation, safe production and energy saving and consumption reduction of the whole plant. Combined with the scale formation of flue gas turbine in the 2.2 million t/a heavy oil catalytic cracking unit of certain company, the causes for scale formation were analyzed. The results showed that the viscosity of catalyst, the concentration of fine powder and the centrifugal force caused by high-speed swirl were the key factors for scale formation. Aiming at the above-mentioned reasons, this paper put forward the preventive measures and suggestions to ensure the long-time stable operation of the flue gas turbine.

Key words: catalytic cracking unit, flue gas turbine, scale formation, catalyst, preventive measures

Cheng Guangjian, Li Xue, Li Zhiyu, Yu Hao. Cause Analysis and Preventive Measures of Scaling in Catalytic Cracking Flue Gas Turbine[J].Petro-chemical Equipment Technology, 2022, 43(2): 59-62.

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Cause Analysis and Preventive Measures of Scaling in Catalytic Cracking Flue Gas Turbine

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