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Catalytic cracking material pretreatment method

A catalytic cracking raw material and pretreatment technology, which is applied in the treatment of hydrocarbon oil, hydrotreating process, petroleum industry, etc., can solve the problems of operational flexibility limitation, achieve the effects of reducing costs, improving flexible operability, and improving desulfurization efficiency

Inactive Publication Date: 2012-01-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, the weight content of residual oil in raw oil cannot exceed 50%, and the hydrotreating catalyst needs to adopt a graded packing method and has strict requirements on the pore volume of the catalyst used, so the operational flexibility of this method is greatly limited

Method used

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  • Catalytic cracking material pretreatment method
  • Catalytic cracking material pretreatment method
  • Catalytic cracking material pretreatment method

Examples

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Effect test

Embodiment 7

[0038] Example 7 is directly hydrogenated without demetallization, and Example 8 is hydrogenated after demetallization. The rest of the reaction conditions are the same, and the hydrogenation oil after 3000 hours of operation of the device has the properties of oil.

[0039] As can be seen from the above examples, the inventive method has produced high-quality catalytic cracking raw materials through a simple process and mild process operating conditions, and the inventive method can effectively process residues including , low-quality wax oil, light wax oil and coker wax oil and other raw materials.

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Abstract

The invention discloses a catalytic cracking material pretreatment method, which comprises the following steps: filling a residual oil raw material into a solvent deasphalting device to perform deasphalting treatment; delivering the mixture of deasphalted oil and deeply drawn vacuum gas oil (VGO) to a hydrodemetallization region to perform a reaction in the presence of hydrogen and a demetallization catalyst; and finally, mixing the efflux of hydrodemetallization with one or two of the light wax oil and coker gatch, delivering the mixture to a hydrogenation treatment reaction region to perform a reaction in the presence of hydrogen and a hydrogenation treatment catalyst, wherein a liquid phase separated from the efflux of the hydrogenation treatment reactor is used as a catalytic raw material. When the method disclosed by the invention is used, different catalytic cracking raw materials can be treated stage by stage, the flexible operability and desulfuration efficiency of the device can be improved, and the cost can be reduced.

Description

technical field [0001] The invention relates to a pretreatment method for catalytic cracking raw materials, in particular to a method capable of segmentally treating various catalytic cracking raw materials. Background technique [0002] At present, the nature of crude oil in the world is gradually becoming heavier and worse, coupled with the continuous development of the world economy and increasingly stringent environmental protection regulations, it is necessary to produce a large amount of light and clean fuels, all of which require the improvement and improvement of the existing refining technology to Produce products that meet the requirements at the lowest cost. [0003] Catalytic cracking (FCC) continues to play an important role in the processing of heavy feedstocks to produce light products. The quality of light oil products directly produced by catalytic cracking technology is poor, especially the sulfur content of catalytic gasoline is relatively high, the sulfu...

Claims

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Application Information

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IPC IPC(8): C10G67/00
Inventor 崔哲刘涛刘继华黄新露孙士可
Owner CHINA PETROLEUM & CHEM CORP
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