Method for utilizing pyrolysis C9 by performing catalytic reforming

A technology of catalytic upgrading and catalytic devices, which is applied in cracking, catalytic cracking, petroleum industry, etc., and can solve the problems of cracking C9 resource waste and so on

Inactive Publication Date: 2010-12-08
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, cracking C9 is mostly used as raw materials for petroleum resins, such as Patent No. CN101003602, which discloses a process for producing C9 petroleum resins by continuous thermal polymerization in series with multiple reactors; The method of diene and methylcyclopentadiene; also partially cracked C9 and burned it as fuel, resulting in a waste of cracked C9 resources

Method used

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  • Method for utilizing pyrolysis C9 by performing catalytic reforming
  • Method for utilizing pyrolysis C9 by performing catalytic reforming
  • Method for utilizing pyrolysis C9 by performing catalytic reforming

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Mix the cracked C9 with the FCC raw material of an oil refinery. The mixing ratio is 1# mixed raw material 95% FCC raw material + 5% cracked C9, 2# mixed raw material is 90% FCC raw material + 10% cracked C9, cracked C9, FCC raw material and The properties of the mixed raw materials are shown in Table 1.

[0013] Table 1 Raw material properties

[0014]

Embodiment 2

[0016] 1# raw material, 2# raw material and FCC raw material were used to carry out the catalytic cracking evaluation test on the riser device, and the catalyst used in the test was the catalyst used in the catalytic device of a certain oil refinery. The process conditions are: reaction temperature 505°C, regeneration temperature 700°C, agent-oil ratio 5.0. In the evaluation tests, oil was fed continuously for 10 hours, and the amount of oil fed was 8kg. The resulting oil was subjected to true boiling point distillation and cut to obtain gasoline, diesel oil and heavy oil. The product distribution obtained in the evaluation test is shown in Table 2.

[0017] Table 2 Evaluation Test Gained Product Distribution % (m)

[0018] Raw oil

[0019] light oil yield,

Embodiment 3

[0021] The generated oil obtained in the evaluation test of Example 2 is accumulated as an oil sample, and the generated oil is distilled and cut on a real boiling point distillation device to obtain catalytic gasoline and catalytic diesel oil (wherein the catalytic gasoline fraction is the initial boiling point ~ 200 ° C, and the catalytic diesel fraction is 200 ° C ~350°C), the properties of the cut catalytic gasoline were analyzed, and the analysis results are shown in Table 3.

[0022] Table 3 evaluates the properties of test-gained catalytic gasoline

[0023]

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Abstract

The invention relates to a method for utilizing pyrolysis C9 by performing catalytic reforming. The method is mainly technically characterized in that: the pyrolysis C9 is taken as a catalysis raw material by doping or taken as a terminator of a catalytic device; the pyrolysis C9 can react under the pressure of between 0.1 and 0.8MPa and at the temperature of between 450 and 600 DEG C by using the conventional catalytic device; when the pyrolysis C9 is taken as the catalysis raw material by doping, the doping proportion of the pyrolysis C9 is between 2 and 15 weight percent and the pyrolysis C9 is mixed with the catalysis raw materials and fed from a crude oil inlet; and when the pyrolysis C9 is taken as the terminator, the doping proportion is between 2 and 10 weight percent and the pyrolysis C9 is fed from a terminator inlet at the upper middle end of a raising pipe. The catalytic reforming is performed on the pyrolysis C9, so that products (petrol and diesel oil) with high added value are obtained; meanwhile, the product distribution of the catalytic device can be improved, the yield, the overall liquid yield and the transformation ratio of light oil are increased to a certain extent, the yields of the petrol and the diesel oil can be increased and economic benefit is very remarkable.

Description

technical field [0001] The invention relates to a catalytic cracking upgrading utilization method in which cracked C9 is mixed as a catalytic feed or as a catalytic device termination agent. Background technique [0002] With the rapid development of my country's petrochemical industry, the processing capacity of ethylene plants has increased year by year. So far, the production capacity of domestic ethylene plants has reached 10 million tons per year. As a by-product of ethylene plants, the amount of cracked C9 is also increasing. According to the different ethylene raw materials, the yield of cracked C9 generally accounts for about 10% to 15% of the ethylene production. The number of cracked C9 in the country is more than 1 million tons per year. . Due to the extremely complex composition of the cracked C9 fraction, there are more than 150 components, mainly containing olefins and aromatics, with a distillation range of 140°C to 220°C. The boiling points of the components...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G11/00
Inventor 周忠国许晓斌张义玲许金山林健李秀春达建文王建华梁颖杰
Owner CHINA PETROLEUM & CHEM CORP
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