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Method of hydrocracking and upgrading reaction process used for PRO residual oil

A hydrocracking and lightening technology, which is applied in the fields of hydrocarbon oil cracking and petroleum industry, etc., can solve the problems of few researches on PRO residual oil hydrocracking, reduce production energy consumption and equipment cost, reduce pollution, and react low pressure effect

Inactive Publication Date: 2013-03-20
BAOWU CHARCOAL MATERIAL TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] It can be seen that the existing research directions are mainly concentrated on the hydro-upgrading of coal tar heavy components and anthracene oil components, and there is little research on the hydrocracking of PRO residual oil.

Method used

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  • Method of hydrocracking and upgrading reaction process used for PRO residual oil
  • Method of hydrocracking and upgrading reaction process used for PRO residual oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Add 6.0 g of catalyst into the fixed-bed reactor, wherein the catalyst is a catalyst made of a carrier prepared by Beta-type zeolite molecular sieve, alumina and Tianqing powder, and loaded with Ni oxide. Seal the reactor, use 1.0MPa nitrogen to replace the air in the reactor, and then fill in 5.0MPa nitrogen to check the airtightness of the reactor. After ensuring the airtightness of the reactor, release nitrogen and fill it into the hydrogen replacement reactor Nitrogen, the pressure is 3.0MPa, the temperature program is turned on, and the temperature is raised to 440°C within 120min, at this time, the pressure is raised to 4.5MPa, and the catalyst is reduced for 90min under this condition. The toluene solution of PRO residual oil is transported into the reactor with 0.34ml / min plastic, and after being heated and vaporized, a gas-solid phase reaction occurs with hydrogen on the catalyst bed. The reaction is carried out under stable conditions for 2 hours, and the produ...

Embodiment 2

[0039] Add 6.0 g of catalyst into the fixed-bed reactor, wherein the catalyst is a catalyst made of Y-type zeolite molecular sieve, alumina, Tianqing powder, etc., and supports Ni oxide. Seal the reactor, use 1.0MPa nitrogen to replace the air in the reactor, and then fill in 5.0MPa nitrogen to check the airtightness of the reactor. After ensuring the airtightness of the reactor, release nitrogen and fill it into the hydrogen replacement reactor Nitrogen, the pressure is 3.0MPa, the temperature program is turned on, and the temperature is raised to 440°C within 120min, at this time, the pressure is raised to 4.5MPa, and the catalyst is reduced for 90min under this condition. The toluene solution of PRO residual oil is transported into the reactor with 0.34ml / min plastic, and after being heated and vaporized, a gas-solid phase reaction occurs with hydrogen on the catalyst bed. The reaction is carried out under stable conditions for 2 hours, and the product is condensed. After b...

Embodiment 3

[0041] Add 6.0 g of catalyst into the fixed bed reactor, wherein the catalyst is a carrier made of Y-type zeolite molecular sieve, alumina and Tianqing powder, etc., and supports Co oxide as a catalyst. Seal the reactor, use 1.0MPa nitrogen to replace the air in the reactor, and then fill in 5.0MPa nitrogen to check the airtightness of the reactor. After ensuring the airtightness of the reactor, release nitrogen and fill it into the hydrogen replacement reactor Nitrogen, the pressure is 3.0MPa, the temperature program is turned on, and the temperature is raised to 440°C within 120min, at this time, the pressure is raised to 4.5MPa, and the catalyst is reduced for 90min under this condition. The toluene solution of PRO residual oil is transported into the reactor with 0.34ml / min plastic, and after being heated and vaporized, a gas-solid phase reaction occurs with hydrogen on the catalyst bed. The reaction is carried out under stable conditions for 2 hours, and the product is con...

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Abstract

The invention discloses a method of a hydrocracking and upgrading reaction process used for PRO residual oil, relates to the deep processing field of the PRO residual oil, and solves the problem of low utilization rate of conventional PRO residual oil. The method comprises the steps of adding a hydrocracking and upgrading catalyst for the PRO residual oil in a fixed bed reactor by using a toluene solution of the PRO residual oil; performing a catalytic action under the conditions of a reaction temperature being 390-500 DEG C, a reaction pressure being 3.0-8.0 MPa, a space velocity being 3-5 h<-1> and a hydrogen to oil ratio being 300 : 1-500 : 1 to realize the upgrading reaction of the PRO residual oil. The method is simple in process, reduces energy consumption and cost, and decreases pollutions toward the environment, due to relatively low reaction pressure and low hydrogen to oil ratio. The method has relatively high reaction activity, good catalytic cracking controllability and relatively high selectivity for benzene compounds in the product. The single pass conversion of the PRO residual oil is higher than 30%; and the single pass selectivity for the benzene compounds is higher than 55%.

Description

technical field [0001] The present invention relates to the field of deep processing of PRO residual oil, especially refers to a kind of toluene solution of PRO residual oil as raw material, using a fixed bed reactor, through the high-efficiency catalysis of a special hydrocracking and lightening catalyst for PRO residual oil, Process method for realizing PRO residual oil hydrocracking lightening reaction Background technique [0002] About 10.7 million tons of coal tar resources are produced in my country every year. AATO (anthracene oil) is an important fraction of coal tar distillation. Fluorene, pyrene, and condensed ring aromatic hydrocarbons) are the residues of AATO after solvent crystallization and vacuum distillation to extract refined anthracene and refined carbazole. PRO residual oil is a mixture with very complex composition and structure. It is a heterogeneous system mainly composed of tricyclic and above polycyclic aromatic compounds. Due to its high molecular ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G47/20
Inventor 夏剑忠侯文杰朱志荣余兆祥朱春燕陈亮吴倩
Owner BAOWU CHARCOAL MATERIAL TECH CO LTD
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