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Method for processing fixed bed fishing coker gas oil

A coking wax oil, supplementary refining technology, applied in the petroleum industry, hydroprocessing process, only multi-stage series refining and cracking process treatment, etc., can solve the problem of water-washing emulsified denitrification components residues and other problems

Active Publication Date: 2012-06-06
PETROCHINA CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a fixed bed supplementary refined coking wax oil processing method to solve the problems of water washing emulsification and denitrification components residue

Method used

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  • Method for processing fixed bed fishing coker gas oil
  • Method for processing fixed bed fishing coker gas oil
  • Method for processing fixed bed fishing coker gas oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Use 10g of white clay as a filler to fill a column, pass the denitrified coker wax oil through a fixed bed at 0.5g / min, and obtain refined oil after adsorption and filtration. After analysis, the acid value is reduced from 1.08mgKOH / g to 0.054mgKOH / g g.

Embodiment 2

[0031] Use 10g of activated clay that absorbs inorganic acid as a filler to fill a column, pass the denitrified coker wax oil through a fixed bed at 0.5g / min, and obtain refined oil after adsorption and filtration. After analysis, the acid value is from 0.98mgKOH / g down to 0.051mgKOH / g.

Embodiment 3

[0033] Use 10g of activated carbon that absorbs inorganic salts as a filler to fill a column, pass the denitrified coker wax oil through a fixed bed at 0.5g / min, and obtain refined oil after adsorption and filtration. After analysis, the acid value is reduced by 0.95mgKOH / g to 0.49mgKOH / g.

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Abstract

The invention relates to a method for processing fixed bed fishing coker gas oil, which comprises the following steps: carrying out heat exchange of a coker gas oil raw material in a heat exchanger A to the temperature of 25-150 DEG C, carrying out mixed reaction with a refining agent in a static mixer, depositing by a settler and separating slag, discharging the sediment from the bottom of the settler, passing the refining oil through an electric settler, discharging the sediment from the bottom of the settler, refining an upper level refining oil through an adsorption filter, carrying out heat exchange on the refined oil by a heat exchanger F to the temperature of 60-500 DEG C and then entering to a catalytic cracking apparatus for catalytic cracking treatment. The adding weight of the refining agent accounts for 0.2-5% of coker gas oil raw material, the adsorption filtering medium is one of active carbon, white clay and diatomite or a compound. The method of the invention solves the problem of washing emulsification and residual nitrogen removal ingredients, and can reduce the influence of subsequent treatment.

Description

technical field [0001] The invention relates to a fixed-bed supplementary refined coker wax oil processing method. Background technique [0002] At present, petrochemical refineries can convert more heavy oil into fuel oil through the catalytic cracking process, and the raw materials of catalytic cracking mostly use straight-run gas oil. And high nitrogen content, difficult to process. Existing refineries use coker wax oil as raw material, which will lead to a decrease in the yield of light oil in the catalytic cracking unit. The root cause is that the "basic nitrogen compounds" contained in coking gas oil are generally several times that of straight-run gas oil, and basic nitrogen compounds will lead to a decrease in catalyst activity, affect the distribution of catalytic cracking products, and reduce the coke yield. Rise, fuel oil yield decreases, and the amount of oil slurry thrown out increases, which seriously affects economic benefits. US2934995 reports that the cok...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G55/06C10G67/14
Inventor 沈喜洲许乐新蒋光忠尹先清王国清瞿东蕙崔秋凯韩建立刘凤立刘华林靳海燕赵春美王刚郭立艳张志华田然葛冬梅宋金鹤李瑞峰
Owner PETROCHINA CO LTD
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