Preparation method of catalytic-cracking high liquid recovery agent

A catalytic cracking and solution technology, applied in catalytic cracking, catalyst protection, chemical instruments and methods, etc., can solve the problems of low yield of catalytic cracking light oil, increase catalyst production cost, shorten catalyst life, etc., to reduce thermal cracking The effect of the reaction progressing, facilitating the regeneration and reducing the coke yield

Inactive Publication Date: 2013-03-20
江苏汉光实业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The metal deactivator cannot remove the sulfur element in the raw oil, and the sulfur also has a certain poisonous effect on the catalyst, shortening the life of the catalyst, not only increasing the production cost of the catalyst, but also causing a low yield of catalytic cracking light oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method for catalytic cracking high liquid yield agent, comprising the following steps:

[0020] (1) Preparation of zinc solution: pump 20kg of water, 30kg of monoethanolamine, and 30kg of tartaric acid into the reactor and stir evenly, then raise the temperature to 70°C and slowly add 20kg of zinc oxide, then raise the temperature to 103°C, reflux for 1 hour, and cool to 50°C ℃ into an orange clear solution for later use;

[0021] (2) Preparation of antimony and cerium bimetallic solution: put 20kg of water, 15kg of monoethanolamine, 25kg of tartaric acid, and 25kg of antimony white into the reactor and stir for 30 minutes, heat up to 102°C, reflux for 1 hour, and cool down to below 50°C. Add 5kg of monoethanolamine, heat up to 70°C, slowly add 10kg of cerium carbonate, continue to heat up to 108°C, reflux for 1 hour, cool to below 50°C and discharge, set aside;

[0022] (3) Compounding: Mix 1 part of zinc solution with 2 parts of antimony and cerium bime...

Embodiment 2

[0024] A preparation method for catalytic cracking high liquid yield agent, comprising the following steps:

[0025] (1) Preparation of zinc solution: pump 22kg of water, 28kg of monoethanolamine, and 30kg of tartaric acid into the reactor and stir evenly, then raise the temperature to 70°C and slowly add 18kg of zinc oxide, then raise the temperature to 100°C, reflux for 1 hour, and cool to 50°C ℃ into an orange clear solution for later use;

[0026] (2) Preparation of antimony and cerium bimetallic solution: put 19kg of water, 15kg of monoethanolamine, 24kg of tartaric acid, and 26kg of antimony white into the reactor and stir for 30 minutes, heat up to 102°C, reflux for 1 hour, and cool down to below 50°C. Add 4.5kg of monoethanolamine, heat up to 70°C, slowly add 9.5kg of cerium carbonate, continue to heat up to 105°C, reflux for 1 hour, cool to below 50°C and discharge, set aside;

[0027] (3) Compounding: Mix 1 part of zinc solution with 3 parts of antimony and cerium b...

Embodiment 3

[0029] A preparation method for catalytic cracking high liquid yield agent, comprising the following steps:

[0030] (1) Preparation of zinc solution: pump 24kg of water, 33kg of monoethanolamine, and 29kg of tartaric acid into the reactor and stir evenly, then heat up to 70°C and slowly add 20kg of zinc oxide, then heat up to 105°C, reflux for 1 hour, and cool to 50°C ℃ into an orange clear solution for later use;

[0031] (2) Preparation of antimony and cerium bimetallic solution: put 22kg of water, 16kg of monoethanolamine, 25kg of tartaric acid, and 24kg of antimony white into the reactor and stir for 30 minutes, heat up to 102°C, reflux for 1 hour, and cool down to below 50°C. Add 5.5kg of monoethanolamine, heat up to 70°C, slowly add 11kg of cerium carbonate, continue to heat up to 110°C, reflux for 1 hour, cool to below 50°C and discharge, set aside;

[0032] (3) Compounding: Mix 1 part of zinc solution with 1 part of antimony and cerium bimetallic solution and stir ev...

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PUM

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Abstract

The invention discloses a preparation method of a catalytic-cracking high liquid recovery agent, belonging to the technical field of chemical engineering. The catalytic-cracking high liquid recovery agent is prepared by the steps of: preparing a zinc solution and an antimony and cerium dual-metal solution, then mixing the zinc solution and the antimony and cerium dual-metal solution, stirring uniformly, and adding N,N dimethylformamide to regulate a pH value to be 7.5-8 to obtain the catalytic-cracking high liquid recovery agent. According to the invention, by means of compounding the zinc solution and the antimony and cerium dual-metal solution serving as a passivator to obtain the catalytic-cracking high liquid recovery agent, the advantages of improving the liquid yield and reducing the coke yield are achieved; and in addition, by means of adding a sulphur transferring agent on the basis of the dual-metal passivator, sulphur-containing compounds in raw materials can be converted into gaseous sulfides, so that the damages of sulphur to a catalyst are reduced greatly, the yield of catalytic-cracking light oil is improved, and meanwhile, the catalyst is facilitated in regeneration and is prolonged in life.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, in particular to a preparation method of catalytic cracking high liquid yield agent. Background technique [0002] With the diversification and inferiority of heavy oil catalytic cracking raw materials, the content of metal elements in crude oil is increasing day by day. The metal elements in catalytic raw materials are very harmful to catalysts, especially nickel is particularly harmful to catalysts, which will affect FCC product distribution. The slag seepage amount of the heavy catalyst raw material has reached the limit. The industry chooses to carry out demetallization pretreatment on raw materials, and selects catalysts with strong metal resistance. The simplest and most effective is to use passivating agents to inhibit the poisoning of catalysts by metals in raw materials. Metal deactivators cannot remove sulfur in raw oil, and sulfur also has a certain poisonous effect on cata...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B01J33/00C10G11/02
Inventor顾法明
Owner江苏汉光实业股份有限公司