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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 blending vehicle fuel, poor quality of catalytic gasoline or catalytic diesel, and achieve significant economic and social benefits

Active Publication Date: 2020-08-04
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
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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

The embodiment of the invention provides a catalytic cracking method and a reaction system, and relates to the technical field of petroleum refining. The system comprises a raw material catalytic cracking device, a gasoline catalytic cracking device, a diesel catalytic cracking device, a gasoline hydrogenation distillation cutting device and an aromatic hydrocarbon extraction device, a gasoline discharge pipe of the raw material catalytic cracking device is communicated with the gasoline catalytic cracking device, and diesel discharge pipes of the raw material catalytic cracking device, the gasoline catalytic cracking device and the diesel catalytic cracking device are communicated with the diesel catalytic cracking device, gasoline discharge pipes of the gasoline catalytic cracking deviceand the diesel catalytic cracking device are communicated with the gasoline hydrogenation distillation cutting device, a light fraction discharge pipe of the gasoline hydrogenation distillation cutting device is communicated with the gasoline catalytic cracking device, and a heavy fraction discharge pipe of the gasoline hydrogenation distillation cutting device is communicated with the aromatic hydrocarbon extraction device. According to the method, the catalytic cracking reaction is carried out by adopting the system. According to the method, low-carbon olefin and aromatic hydrocarbon can beproduced, meanwhile, catalytic gasoline and catalytic diesel oil are not produced, and remarkable economic benefits are achieved.

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 Applications(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