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Assistant for catalytic cracking coking-inhibiting yield-increasing and preparing process thereof

A technology for catalytic cracking and catalytic cracking raw materials, applied in the field of processing aids, can solve the problems of poor solubility of raw material oil, poor dispersion performance, low decomposition temperature, etc., and achieves significant economic benefits of the device, superior solubility, and high decomposition temperature. Effect

Inactive Publication Date: 2008-07-09
金浦新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the metal passivators in FCC devices are generally one or several mixtures of water-soluble antimony, rare earth, tin and other compounds. The disadvantages are that they are easy to precipitate at low temperature, low decomposition temperature, poor solubility in raw poor performance

Method used

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  • Assistant for catalytic cracking coking-inhibiting yield-increasing and preparing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] First add 2000kg of kerosene into the stainless steel reaction kettle, raise the temperature to 50°C within 1 hour, stir, and then add 250kg of polyisobutylene succinimide, 500kg of sorbitan polyoxyethylene ether, di-sec-butyl terephthalate Add 750kg of amine, 1500kg of antimony dialkyldithiophosphate, keep warm for 1-5 hours, filter to remove impurities after cooling to obtain coke suppression and income increasing additive A.

Embodiment 2

[0024] First, add 1550kg of kerosene into the stainless steel reaction kettle, raise the temperature to 50°C within 1 hour, stir, and then add 350kg of borated polyisobutylene succinimide, 600kg of sorbitan polyoxyethylene ether, di-sec-butyl p- 500kg of phenylenediamine, 2000kg of tin octoate, heat preservation for 1-5 hours, after cooling, filter to remove impurities to obtain coke suppression and income increasing aid B.

Embodiment 3

[0026] First, add 1000kg of diesel oil into the stainless steel reaction kettle, raise the temperature to 80°C within 1 hour, stir, and then add 500kg of borated polyisobutylene succinimide, 800kg of polyoxyethylene sorbitan ether, and phenyl phosphite 500kg, 2200kg antimony dialkyl dithiophosphate, keep warm for 2-4 hours, filter to remove impurities after cooling to obtain coke suppression and income increasing additive C.

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Abstract

The invention discloses catalytic cracking anti-coke income-increasing auxiliary agent which is used for catalytic cracking (FCC) devices and is prepared by following components according to the proportion by weight: disperser 5-15%, thermal cracking active agent 5-20%, free radical chain reaction depressor 5-25%, metal passivator 15-60% and dissolvent 25-65%. The invention is oil soluble auxiliary agent and has good compatibility with catalytic cracking mediums, the slag inserting rate of the FCC devices can be increased after the auxiliary agent is added, the light oil yield is increased, and the coke yielding rate is reduced.

Description

technical field [0001] The invention belongs to a processing aid for a catalytic cracking unit, which is used to increase the slag mixing ratio of the catalytic cracking unit, reduce the coke yield and increase the light oil yield of the unit. Background technique [0002] As we all know, the catalytic cracking unit is the core unit of the refinery unit, and the FCC raw material undergoes catalytic cracking reaction to obtain dry gas, liquefied gas, gasoline, diesel, coke and oil slurry. What the refining companies are pursuing is high slagging ratio, low coke yield and high light oil or total liquid yield in order to achieve maximum economic benefits. At home and abroad, there are also many method reports about improving the distribution of catalytic cracking products, which are described in detail in CN1429881A. This paper reports a new method for improving the distribution of catalytic cracking products, by adding a strengthening agent ( or activator), the addition amoun...

Claims

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Application Information

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IPC IPC(8): C10G11/00
Inventor 康国培王鹏翔葛圣才
Owner 金浦新材料股份有限公司
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