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Catalytic conversion method of hydrocarbon oil

A catalytic conversion method and technology for hydrocarbon oil, which are applied in catalytic cracking, cracking, petroleum industry and other directions, can solve the problems of poor atomization effect of raw materials and increase of coke yield, etc., so as to reduce coke yield, improve yield, and improve The effect of proportions

Active Publication Date: 2013-11-06
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] LV-23 was put into the reactor of the fixed fluidized bed reactor, the catalyst loading amount was 240g. Atmospheric residual oil feedstock and catalytic cracking diesel are mixed in a ratio of 90:10, heated by a preheater, mixed with atomized steam, and then enter the reactor, where it reacts with high-temperature catalysts, and the generated oil and gas are cooled by three stages Then, the cracked gas and liquid products are collected separately. The spent catalyst with coke deposited on the surface is regenerated at a high temperature with excess air, and the volume of flue gas and cracked gas and the weight of liquid product 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 , The results are shown in Table 4.

Embodiment 2

[0036] LV-23 was put into the reactor of the fixed fluidized bed reactor, the catalyst loading amount was 240g. The raw material of atmospheric residual oil is mixed with straight-run diesel at a ratio of 80:20, heated by a preheater, mixed with atomized steam, and then enters the reactor, where it reacts with high-temperature catalysts, and the generated oil and gas are cooled by three stages Then, the cracked gas and liquid products are collected separately. The spent catalyst with coke deposited on the surface is regenerated at a high temperature with excess air, and the volume of flue gas and cracked gas and the weight of liquid product 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 , The results are shown in Table 4.

Embodiment 3

[0043] The experiment of Comparative Example 2 was repeated, except that the feedstock oil was a mixture of atmospheric residual oil and catalytic diesel oil, and the weight ratio of the two was 90:10. The results are shown 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 belongs to the catalytic cracking of hydrocarbon oil 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 a raw material. Background technique [0002] Catalytic cracking is one of the important technical means for the lightening of heavy oil. With the heavy and degraded crude oil and the increasing demand for light oil products, the sources of catalytic cracking feedstocks continue to expand, and the heavyweighting of catalytic cracking feedstocks And deterioration is also increasing. Since the catalytic cracking reaction and thermal cracking reaction occur concurrently in the catalytic cracking process, especially after the heavy and degraded feedstock oil, the atomization effect of the feedstock becomes worse and the coke yield increases significantly. [0003] CN101215476A discloses a catalytic cracking coke-inhibiting an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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