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Catalytic cracking method and reaction system

A catalytic cracking and reaction system technology, applied in the field of catalytic cracking methods and reaction systems, can solve the problems of increasing the difficulty of reconciling vehicle fuel, poor quality of catalytic gasoline or catalytic diesel, and achieve significant economic and social benefits

Active Publication Date: 2021-11-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The existing catalytic cracking process that produces more light olefins or light aromatics still has a higher yield of catalytic gasoline or catalytic diesel, and usually uses relatively harsh reaction conditions, resulting in the production of catalytic gasoline or catalytic diesel. The quality of the fuel is worse, which increases the difficulty of reconciling vehicle fuel

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  • Catalytic cracking method and reaction system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0123] In this embodiment, the catalytic cracking reaction system 100 provided by the present invention is used to implement a catalytic cracking method provided by the present invention. The parameters during operation are as follows:

[0124] A heavy oil raw material with an H content of about 12wt% and a residual carbon content less than or equal to 8wt% is used.

[0125]In step S1, the catalytic cracking reaction temperature is 510°C, the catalyst-to-oil ratio is 6.5, the catalytic cracking reaction pressure is 0.15MPa, the catalytic cracking reaction time is 3.1s, and the atomized water vapor accounts for 2wt% of the feed amount during the catalytic cracking process. The catalyst is DFC-1.

[0126] In step S2, the catalytic cracking reaction temperature is 530°C, the catalyst-to-oil ratio is 7.5, the catalytic cracking reaction pressure is 0.15MPa, the catalytic cracking reaction time is 3.1s, and the atomized water vapor accounts for 2wt% of the feed amount during the c...

Embodiment 2

[0132] In this embodiment, the catalytic cracking reaction system 100 provided by the present invention is used to implement a catalytic cracking method provided by the present invention. The parameters during operation are as follows:

[0133] A heavy oil raw material with an H content of about 12wt% and a residual carbon content less than or equal to 8wt% is used.

[0134] In step S1, the catalytic cracking reaction temperature is 500°C, the catalyst-to-oil ratio is 7, the catalytic cracking reaction pressure is 0.25MPa, the catalytic cracking reaction time is 3s, and the atomized water vapor accounts for 2wt% of the feed amount in the catalytic cracking process. The catalyst is DFC-1.

[0135] In step S2, the catalytic cracking reaction temperature is 540°C, the catalyst-to-oil ratio is 8, the catalytic cracking reaction pressure is 0.25MPa, the catalytic cracking reaction time is 3s, and the atomized water vapor accounts for 2wt% of the feed amount during the catalytic cr...

Embodiment 3

[0141] In this embodiment, the catalytic cracking reaction system 100 provided by the present invention is used to implement a catalytic cracking method provided by the present invention. The parameters during operation are as follows:

[0142] A heavy oil raw material with an H content of about 9.5wt% and a residual carbon content less than or equal to 8wt% is used.

[0143] In step S1, the catalytic cracking reaction temperature is 480°C, the catalyst-oil ratio is 5, the catalytic cracking reaction pressure is 0.15MPa, the catalytic cracking reaction time is 3s, and the atomized water vapor accounts for 2wt% of the feed amount during the catalytic cracking process. The catalyst is DFC-1.

[0144] In step S2, the catalytic cracking reaction temperature is 500°C, the catalyst-to-oil ratio is 5, the catalytic cracking reaction pressure is 0.15MPa, the catalytic cracking reaction time is 2.5s, and the atomized water vapor accounts for 1wt% of the feed amount in the catalytic cr...

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Abstract

Embodiments of the present invention provide a catalytic cracking method and a reaction system, and relate to the technical field of petroleum refining. The system includes: raw material catalytic cracking unit, gasoline catalytic cracking unit, diesel catalytic cracking unit, gasoline hydrodistillation cutting unit and aromatics extraction unit; the gasoline discharge pipe of the raw material catalytic cracking unit is connected with the gasoline catalytic cracking unit, the raw material catalytic cracking unit, The diesel discharge pipes of gasoline catalytic cracking unit and diesel catalytic cracking unit are connected with diesel catalytic cracking unit; the gasoline discharge pipes of gasoline catalytic cracking unit and diesel catalytic cracking unit are connected with gasoline hydrodistillation cutting device, and the light The fraction discharge pipe is connected with the gasoline catalytic cracking unit, and the heavy fraction discharge pipe is connected with the aromatics extraction device. The method is: adopt the above-mentioned system to carry out catalytic cracking reaction. The invention can produce low-carbon olefins and aromatics without producing catalytic gasoline and catalytic diesel oil, and has remarkable economic benefits.

Description

technical field [0001] The invention relates to the field of petroleum refining, in particular to a catalytic cracking method and a reaction system. Background technique [0002] The growth rate of China's oil demand is slowing down and may even peak around 2030. In 2018, China's oil consumption was about 620 million tons, of which the apparent consumption of refined oil was about 321 million tons, with a growth rate of only 0.4%. About 80% of the refined oil consumption structure is automobile oil. Although there is still a lot of room for growth in the number of cars in my country, with the improvement of the electrification of cars and the improvement of engine efficiency, the fuel consumption of cars will drop from the current 6.5 liters / 100 kilometers to 3.2 liters / 100 kilometers in 2030. This will significantly inhibit the consumption of refined oil, and eventually lead to the saturation of the refined oil market and even the supply process. [0003] At present, cat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G69/04
CPCC10G69/04C10G2300/1007C10G2400/20C10G2400/30
Inventor 孙世源孟凡东闫鸿飞张亚西武立宪张瑞风杨鑫
Owner CHINA PETROLEUM & CHEM CORP