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Multi-metal deactivator for catalytic device of refinery plant and preparation method thereof

A catalytic device, multi-metal technology, applied in catalytic cracking, catalyst protection, chemical instruments and methods, etc., can solve the problems of irritating odor, poor high temperature resistance, long reaction time, etc., to improve the passivation effect, The effect of improving process efficiency and simple preparation process

Inactive Publication Date: 2017-09-15
安徽卓远化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The metal deactivator used in the early stage is some antimony-containing oil-soluble organic compounds, such as CN87106236, US4694324, and the most common one is antimony dihydroxy dithiophosphate. When this type of compound is used, it must be dissolved in a solvent first, and then At the same time, it has a pungent smell and pollutes the environment
Patents US4488998 and US5389233 disclose metal passivators whose main components are antimony carboxylate or antimony trihydroxyethyl mercaptide and their preparation. This agent is soluble in hot oil, has poor high temperature resistance, and has certain corrosion on equipment
Patents CN99121443.9, US4599772, etc. disclose some water-soluble antimony-containing passivators and their preparation. These passivators have the advantages of convenient use and removal, safe storage and transportation, but the preparation temperature is high and the reaction time is long.

Method used

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  • Multi-metal deactivator for catalytic device of refinery plant and preparation method thereof
  • Multi-metal deactivator for catalytic device of refinery plant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of multi-metal passivation agent for refinery catalytic device, it is compounded by A agent and B agent with a mass ratio of 1:0.25, and the A agent includes antimony trioxide, triethylamine, tartaric acid, hydrogen peroxide and desulfurized Ionized water, agent B includes lanthanum acetate, glacial acetic acid and deionized water.

[0019] Among them, the percentage content of each component in Agent A is as follows: 25% antimony trioxide, 5.5% triethylamine, 3.2% tartaric acid, 35% hydrogen peroxide, and the balance of deionized water; the percentage content of each component in Agent B For example: rare earth acetate 15%, glacial acetic acid 3%, deionized water 82%.

[0020] The preparation method of agent A is as follows: add antimony trioxide, tartaric acid, and triethylamine into deionized water, stir and heat to 50°C, then add hydrogen peroxide dropwise, react at 102°C for 2 hours, after the addition is completed, keep warm at 100°C for 1 hour , get A age...

Embodiment 2

[0024] A multi-metal passivation agent for a refinery catalyst unit, which is compounded by A agent and B agent with a mass ratio of 1:0.22, and the A agent includes antimony trioxide, triethylamine, tartaric acid, hydrogen peroxide, and desulfurized Ionized water, agent B includes cerium acetate, glacial acetic acid and deionized water.

[0025] Among them, the percentage content of each component in Agent A is as follows: 28% antimony trioxide, 5.2% triethylamine, 3% tartaric acid, 40% hydrogen peroxide, and the balance of deionized water; the percentage content of each component in Agent B For example: rare earth acetate 15%, glacial acetic acid 3%, deionized water 82%.

[0026] The preparation method of agent A is as follows: add antimony trioxide, tartaric acid, and triethylamine into deionized water, stir and heat to 50°C, then add hydrogen peroxide dropwise, react at 102°C for 2 hours, after the addition is completed, keep warm at 100°C for 1 hour , get A agent.

[00...

Embodiment 3

[0030] A multi-metal passivation agent for refinery catalytic devices, which is compounded by A agent and B agent with a mass ratio of 1:0.2, and the A agent includes antimony trioxide, triethylamine, tartaric acid, hydrogen peroxide and detoxified Ionized water, agent B includes lanthanum acetate, glacial acetic acid and deionized water.

[0031] Among them, the percentage content of each component in Agent A is as follows: 20% antimony trioxide, 5% triethylamine, 3.6% tartaric acid, 38% hydrogen peroxide, and the balance of deionized water; the percentage content of each component in Agent B For example: rare earth acetate 15%, glacial acetic acid 3%, deionized water 82%.

[0032] The preparation method of agent A is as follows: add antimony trioxide, tartaric acid, and triethylamine into deionized water, stir and heat to 50°C, then add hydrogen peroxide dropwise, react at 102°C for 2 hours, after the addition is completed, keep warm at 100°C for 1 hour , get A agent.

[0...

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PUM

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Abstract

The invention provides a multi-metal deactivator for a catalytic device of a refinery plant and a preparation method thereof. An agent A and an agent B at the mass ratio of 1:(0.2-0.3) are compounded into the multi-metal deactivator; the agent A comprises antimonous oxide, triethylamine, tartaric acid, hydrogen peroxide and deionized water; and the agent B comprises lanthanum acetate, glacial acetic acid and deionized water. Reasonable compound ratio is adopted for the poison of the metal, such as, nickel and vanadium in the raw materials of the refinery plant to the splitting catalyst according to the invention, the hydrogen methane ratio is reduced while the micro-activity of the catalyst is promoted, the deactivating effect is effectively improved, the technical efficiency is promoted, the preparation technology is simple and convenient, the matching ratio is flexible and the applicability is high.

Description

technical field [0001] The invention relates to the technical field of refinery equipment protective agents, in particular to a multi-metal passivator for refinery catalytic devices and a preparation method thereof. Background technique [0002] As we all know, in the process of catalytic cracking, especially in the process of catalytic cracking with heavy oil as raw material, heavy metals contained in the raw oil, such as nickel, vanadium, copper, iron and other heavy metals, will deposit on the surface of the catalyst, causing catalyst poisoning, deactivation and The selectivity decreases, so that the yield of light oil decreases, and the yield of hydrogen and coke increases. For the metal pollution of catalytic cracking catalysts, in addition to demetallization pretreatment of raw materials and selection of catalysts with strong metal resistance, the industry can also improve the properties of catalysts by increasing the replacement rate of catalysts, and use passivators ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J33/00C10G11/00
CPCB01J33/00C10G11/00C10G2300/705Y02P30/40
Inventor 范啸樊继利张洁邵至央缪淼
Owner 安徽卓远化工科技有限公司
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