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Catalytic conversion method of hydrocarbon oil

A catalytic conversion method and hydrocarbon oil technology, applied in the direction of catalytic cracking, cracking, petroleum industry, etc., can solve the problems of increased coke yield and poor raw material atomization effect, so as to increase yield, reduce coke yield, reduce Effect of Dry Gas Yield

Active Publication Date: 2010-12-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the catalytic cracking reaction and thermal cracking reaction occur together in the catalytic cracking process, especially after the raw material oil is heavy and inferior, the atomization effect of the raw material becomes worse, and the coke yield increases significantly

Method used

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  • Catalytic conversion method of hydrocarbon oil
  • Catalytic conversion method of hydrocarbon oil
  • Catalytic conversion method of hydrocarbon oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034]Load LV-23 into the reactor of the fixed fluidized bed reaction device, and the catalyst loading amount is 240g. The atmospheric residue raw material and catalytic cracking diesel oil are mixed in a ratio of 90:10, heated by a preheater, mixed with atomized steam, and then entered into a reactor, where they react with a high-temperature catalyst, and the generated oil and gas are cooled by three stages Finally, the cracked gas and liquid products are collected separately. The spent catalyst with coke deposited on the surface is regenerated by passing excess air at high temperature, and the volume of flue gas and cracked gas and the weight of liquid products are measured. The experimental conditions are: oil intake 40g, oil intake time 120s, preheating temperature 220°C, reaction temperature 500°C, agent-oil ratio 6, space velocity 4h -1 , and the results are listed in Table 4.

Embodiment 2

[0036] Load LV-23 into the reactor of the fixed fluidized bed reaction device, and the catalyst loading amount is 240g. The raw material of atmospheric residual oil and straight-run diesel oil is mixed at a ratio of 80:20, heated by a preheater, mixed with atomized steam, and then entered into a reactor, where it reacts with a high-temperature catalyst, and the generated oil gas is cooled by three stages Finally, the cracked gas and liquid products are collected separately. The spent catalyst with coke deposited on the surface is regenerated by passing excess air at high temperature, and the volume of flue gas and cracked gas and the weight of liquid products are measured. The experimental conditions are: oil intake 40g, oil intake time 120s, preheating temperature 220°C, reaction temperature 500°C, agent-oil ratio 6, space velocity 4h -1 , and the results are listed in Table 4.

Embodiment 3

[0043] The test of Comparative Example 2 was repeated, except that the feedstock oil was a mixture of atmospheric residue and catalytic diesel oil, and the weight ratio of the two was 90:10. The results are listed in Table 5.

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Abstract

A catalytic conversion method of hydrocarbon oil comprises the following steps: leading the mixture of preheated light hydrocarbon oil and heavy hydrocarbon oil in a reactor from the bottom to contact a catalyst from a regenerator to carry out catalytic cracking reaction, the mixture and the catalyst flowing upward together, leading the reaction product and a spent catalyst with coke out of the reactor from an outlet on the upper part of the reactor, the reaction product and the spent catalyst entering into an oiling agent separation system, recycling the separated catalyst after stripping, burning and regenerating and the separated reaction oil and gas entering into a subsequent separation system to separate the product. The method provided by the invention can reduce the yield of the coke and increase the yields of the gasoline and the liquefied gas.

Description

technical field [0001] The present invention pertains to the catalytic cracking of hydrocarbon oils in the absence of hydrogen. Specifically, the present invention is a catalytic cracking method using a mixture of light hydrocarbon oil and heavy hydrocarbon oil as raw material. Background technique [0002] Catalytic cracking is one of the important technical means for lightening heavy oil. With the heavy and inferior quality of crude oil and the increasing demand for light oil products, the source of catalytic cracking raw oil continues to expand, and the heavy conversion of catalytic cracking raw oil And the deterioration is also increasing. Since the catalytic cracking reaction and thermal cracking reaction occur together in the catalytic cracking process, especially after the raw material oil is heavy and inferior, the atomization effect of the raw material becomes worse, and the coke yield increases significantly. [0003] CN101215476A discloses a catalytic cracking c...

Claims

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Application Information

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IPC IPC(8): C10G11/14C10G11/18
Inventor 侯典国汪燮卿谢朝钢
Owner CHINA PETROLEUM & CHEM CORP
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