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Catalyst on line recovery method and device used for catalytic cracking equipment

A technology of catalytic cracking unit and recovery method, which is applied in the field of on-line catalyst recovery of fluid catalytic cracking unit, can solve the problems that cannot meet the treatment needs of high Ni content in petroleum, and the process of separation and recovery treatment has not been realized, so as to achieve anti-wear Good performance, long life, and the effect of reducing production costs

Inactive Publication Date: 2004-03-03
SINOPEC ENG +1
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Problems solved by technology

Compared with the United States, high Ni content is a characteristic of my country's crude oil. According to the technical plan of the United States, it cannot meet the treatment needs of domestic oil with high Ni content. At present, there is no report in China that high gradient magnetic field is used to separate catalytic cracking balancer, and it is used in oil refining. The process of on-line catalyst sorting and recovery treatment in the FCC unit of the plant has never been realized

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  • Catalyst on line recovery method and device used for catalytic cracking equipment
  • Catalyst on line recovery method and device used for catalytic cracking equipment
  • Catalyst on line recovery method and device used for catalytic cracking equipment

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Embodiment Construction

[0036] Such as figure 1 As shown, an on-line catalyst recovery method for catalytic cracking unit, it conducts continuous on-line treatment of the catalyst in the FCC unit of the refinery through high-efficiency heat exchange and dry separation, and it is a catalyst inventory of the FCC unit An online circulation system that automatically updates and dynamically regulates its average activity level according to process requirements. The method includes: the equilibrium catalyst taken out from the regenerator 1 in the FCC unit is processed by the heat extraction unit 2 and then enters the conveying unit 3; then transported by the conveying unit 3 to the sorting recovery processing unit 4; the sorting recovery processing unit 4 The high-metallic agent obtained after treatment will enter the high-metallic agent tank 10 for buffering and storage: the low-metallic agent obtained after being treated by the sorting recovery processing unit 4 is returned to the regenerator 1 by the lo...

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Abstract

An in-line recovering apparatus for the catalyst used in catalytic cracking apparatus is composed of delivering unit, heat exchange unit, separating-recovering unit consisting of granularity classifying unit, granular shaping unit, magnetic dressing unit and internal circulation, and control unit. Its process includes such steps as heat exchange for cooling the catalyst coming from the regenerator in FCC equipment, classifying, putting the high-metal catalyst in waste catalyst container, and circulating the low-metal catalyst for reuse.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, in particular to an online catalyst recovery method and device for a fluidized catalytic cracking unit (FCC) in an oil refinery. Background technique [0002] At present, in the production process of a fluid catalytic cracking (FCC) unit, it is inevitable to produce a large amount of spent catalyst. Catalyst unit consumption has become a major source of cost in the refining industry. Therefore, how to reduce the unit consumption of the catalyst, save the amount of fresh agent, and improve the average pollution level and activity level of the catalyst storage has become an urgent problem to be solved in the oil refining industry. In response to this problem, the existing treatment methods at home and abroad include two types: chemical methods and physical methods. [0003] Among the chemical processes, the typical ones are the ChemiCat process of the American Catalyst Company and ...

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Application Information

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IPC IPC(8): C10G11/18
Inventor 祖军赵岚顾春来郑卫平张蓉生张荣克
Owner SINOPEC ENG