Advances in improving the performance of additives for increasing propylene production in FCC process

被引：0
作者：
Lyu P. [1 ]
Liu T. [1 ]
Ye H. [2 ]
Huang X. [1 ]
Duan H. [1 ]
Tan Z. [1 ]
机构：
[1] Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina, Lanzhou
[2] Golmud Oil Refinery, Qinghai Oilfield, PetroChina, Golmud
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2022年 / 41卷 / 01期
关键词：
Additives; Fluid catalytic cracking (FCC); Increasing propylene production; Matrix; ZSM-5; zeolite;
D O I：
10.16085/j.issn.1000-6613.2021-0175
中图分类号：
学科分类号：
摘要：
Fluid catalytic cracking (FCC) is the most important secondary processing process in refineries, and also the second largest source of propylene in petrochemical applications. Adding propylene production-increasing additives, mainly composed of active component ZSM-5 zeolite and matrix, to FCC catalyst is a flexible and efficient method to increase propylene yield. In this paper, the research status of additives for increasing propylene production is introduced from two aspects of active component ZSM-5 zeolite and matrix. The modification of ZSM-5 zeolite is used to improve the performance of active component, which is by adjusting the acidity, improving pore structure and particle size, and improving hydrothermal stability of zeolite. The important effects of structure and acid gradient distribution of matrix in improving feedstock conversion, reducing coke formation and increasing propylene production in FCC process is analyzed. Finally, it is pointed out that introducing modification elements in the synthesis of zeolite can reduce the loss of elements, improve the utilization rate of modified elements. At the same time, there are still some deficiencies in the research of additive matrix. The development of high-performance matrix with low cost, large pore size and suitable acidity is also the future research direction of additives for increasing propylene production. © 2022, Chemical Industry Press Co., Ltd. All right reserved.
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页码：210 / 220
页数：10
相关论文
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