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Method for gaining high conversion rate by catalytic hydrogenation of vacuum residue over-critical extraction slag with zeolite molecular sieve

A technology of zeolite molecular sieve and vacuum residue oil, which is applied in the petroleum industry, tar processing, refining hydrocarbon oil and other directions, can solve problems such as effective treatment and utilization technology of unseen residues, achieve significant economic and social benefits, save resources, The effect of simple process design

Inactive Publication Date: 2008-04-16
XUZHOU COLLEGE OF INDAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But until now, there are no literature or patent reports on the effective treatment and utilization technology of residues after vacuum residue extraction.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The formula and catalytic effect are shown in Table 1.

[0023] 1.0g of Dagang vacuum residue supercritical extraction residue (the separation pressure of the vacuum residue supercritical extraction residue is 4.5-12MPa, and the temperature of the extraction fractionation column is 240°C-220°C), 0.1g of vacuum-dried HZSM, Add any one of HM, HY and Hβ and 20ml cyclohexane into the autoclave, and use 5MPa nitrogen gas N at room temperature 2 The air in the autoclave was replaced 3 times, and then filled with hydrogen to 5MPa. The autoclave was heated to 350° C., and reacted at this temperature for 4 hours. During the reaction, a stirring device was used to stir the reactants at a constant speed, and the rotating speed of the rotor was 60 r / min. After the reaction, the autoclave was rapidly cooled to room temperature with a cold water bath. After slowly releasing the gas in the autoclave, the reaction mixture was taken out, and the reaction mixture was taken out with cyc...

Embodiment 2

[0025] The formula and catalytic effect are shown in Table 1.

[0026] Mix 1.0g of Dagang vacuum residue supercritical extract residue (the separation pressure of the vacuum residue supercritical extraction residue is 4.5-12MPa, and the temperature of the extraction fractionation column is 240°C-220°C), 0.1g dried HZSM, HM , any one of HY and Hβ and 20ml of cyclohexane into the autoclave, at room temperature with 5MPa nitrogen N 2 The air in the autoclave was replaced 3 times, and then filled with hydrogen to 5MPa. The autoclave was heated to 400° C., and reacted at this temperature for 4 hours. During the reaction, a stirring device was used to stir the reactants at a constant speed, and the rotating speed of the rotor was 60 r / min. After the reaction, the autoclave was rapidly cooled to room temperature with a cold water bath. After slowly releasing the gas in the autoclave, the reaction mixture was taken out, and the reaction mixture was taken out with cyclohexane and tra...

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Abstract

The invention discloses a method for catalytic hydrogenation of vacuum residue supercritical extraction residue through adopting zeolite molecular sieve to obtain high conversion rate, belonging to the petrochemical residual oil catalytic conversion technical field. The method includes the following steps: quantitative vacuum residue supercritical extraction residue, acidifying zeolite molecular sieve and solvent cyclonexane are fed into a high pressure autoclave; moreover, the air inside the high pressure autoclave is replaced by nitrogen under room temperature and then hydrogen is fed into the autoclave which is heated to a preset temperature; meanwhile, reaction is completed under the preset temperature; after the reaction, the high pressure autoclave is quickly cooled down to room temperature by means of cold water bath; reaction mixture which is taken out by cyclonexane after the gas inside the high pressure autoclave is released slowly is transferred to a Saxhlet extractor; finally, Saxhlet fractional extraction is carried out in turn by means of cyclonexane to obtain converted product. The invention has the advantages of simple process, easy operation and high conversion rate.

Description

technical field [0001] The present invention relates to the catalytic conversion technology of petroleum residual oil, specifically, the present invention relates to a method of using zeolite molecular sieve to carry out catalytic hydrogenation of supercritical extraction residue of vacuum residual oil to obtain a high conversion rate, which belongs to the catalytic conversion of residual oil in petrochemical industry technology field. Background technique [0002] Light fractions such as gasoline, kerosene, and diesel oil are separated from crude oil under normal pressure distillation, and vacuum distillate oil is separated through vacuum distillation (residual pressure 10-100mmHg), and the remaining residue is vacuum residue oil, also known as vacuum distillation residue Oil. my country's crude oil is heavy, and the vacuum residue accounts for 40-50% of the original. In order to meet the economic development, the effective utilization of the residue must be carried out. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/12C10C1/00
Inventor 王艳秋朱士中魏贤勇宗志敏
Owner XUZHOU COLLEGE OF INDAL TECH
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