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Preparation method of polyisobutene amine serving as main agent of gasoline cleaning agent

A technology of polyisobutylene amine and gasoline detergent, which is applied in the petroleum industry, fuel additives, liquid carbon-containing fuels, etc., can solve the problems of large capital construction investment and high price of catalyst organic peroxyacid, and improve the yield of epoxy value. , The effect of reducing equipment requirements and simple operation process

Active Publication Date: 2015-07-15
山东京博众诚清洁能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The price of the catalyst organic peroxyacid used in this method is high, there are co-products in the reaction, and the investment in capital construction is too large

Method used

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  • Preparation method of polyisobutene amine serving as main agent of gasoline cleaning agent

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Effect test

Embodiment 1

[0033] The method for preparing the polyisobutylene amine used as the main agent of gasoline detergent, the specific preparation steps are as follows:

[0034] (1). Take 5000kg of polyisobutylene with a molecular weight of 1400 and put it into the reactor, then take 2500kg of n-heptane, add 250kg of molybdenum hexacarbonyl as a catalyst, and use tert-butyl peroxidation when the temperature of the reactor is 40°C Add 1000kg of hydrogen into the reactor, the reaction temperature is 70°C, the reaction pressure is 0.2Mpa, and the reaction time is 3h;

[0035] (2) After the polyisobutylene epoxidation reaction is finished, separate the lower aqueous phase and the upper organic phase by standing and layering, take the organic phase to remove the solvent by rotary evaporation, and obtain epoxidized polyisobutylene, wash with water to pH value It is about 7, and it is ready for use after drying;

[0036] (3) get the epoxy polyisobutylene that step (2) prepares, record intermediate yi...

Embodiment 2

[0040] The method for preparing the polyisobutylene amine used as the main agent of gasoline detergent, the specific preparation steps are as follows:

[0041] (1). Take 5000kg of polyisobutylene with a molecular weight of 1400 and drop it into the reactor, then take 2500kg of n-heptane, add 167kg of molybdenum hexacarbonyl as a catalyst, and tert-butyl peroxidize it when the temperature of the reactor is 40°C Add 833kg of hydrogen into the reactor, the reaction temperature is 70°C, the reaction pressure is 0.2Mpa, and the reaction time is 3h;

[0042] (2) After the polyisobutylene epoxidation reaction is finished, separate the lower aqueous phase and the upper organic phase by standing and layering, take the organic phase to remove the solvent by rotary evaporation, and obtain epoxidized polyisobutylene, wash with water to pH value It is about 7, and it is ready for use after drying;

[0043] (3) get the epoxy polyisobutylene that step (2) prepares, record intermediate yield...

Embodiment 3

[0047] The method for preparing the polyisobutylene amine used as the main agent of gasoline detergent, the specific preparation steps are as follows:

[0048] (1). Take 5000kg of polyisobutylene with a molecular weight of 1400 and drop it into the reactor, then take 1667kg of n-heptane, add 125kg of molybdenum hexacarbonyl as a catalyst, and tert-butyl peroxidize the reactor when the temperature of the reactor is 40°C Add 714kg of hydrogen into the reactor, the reaction temperature is 70°C, the reaction pressure is 0.2Mpa, and the reaction time is 3h;

[0049] (2) After the polyisobutylene epoxidation reaction is finished, separate the lower aqueous phase and the upper organic phase by standing and layering, take the organic phase to remove the solvent by rotary evaporation, and obtain epoxidized polyisobutylene, wash with water to pH value It is about 7, and it is ready for use after drying;

[0050] (3) get the epoxy polyisobutylene prepared by step (2), record the interme...

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Abstract

The invention relates to polyisobutene amine serving as a main agent of a gasoline cleaning agent, which is a surface active agent. According to the technical scheme, a preparation method of the gasoline cleaning dispersing agent comprises the following steps: preparing epoxidation polyisobutene with high yield by using molybdenum hexacarbonyl as a catalyst and tert-butyl hydroperoxide as an oxygen source; and catalyzing and aminating the epoxidation polyisobutene serving as a raw material to obtain the polyisobutene amine product, and preparing the gasoline cleaning dispersing agent by using the polyisobutene amine, carrying oil, a demulsifying agent, an antioxidant, a polymerization inhibitor, an antirust agent, a metal deactivator and the like in proportion. The whole technological process is green and environmentally-friendly; and the product has excellent performances. The polyisobutene amine serves as the main agent of the gasoline cleaning agent and can effectively clean up carbon deposit of oil nozzles and deposits of intake valves and combustion chambers.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a preparation method of polyisobutene amine used as the main agent of gasoline detergent. Background technique [0002] Some unstable components such as olefins, aromatics, sulfur, nitrogen, and oxygen compounds contained in gasoline will be oxidized by air at the operating temperature of engine-related components to form corresponding adherents, and form hard carbon deposits over time : Fuel nozzle carbon deposit (PFIDA), intake valve carbon deposit (IVD), combustion chamber carbon deposit (CCD). [0003] The existence of carbon deposits will have the following adverse effects on the engine: [0004] Affect the atomization effect of fuel oil, directly lead to the loss of fuel oil economy; cause carbon deposit knocking, shorten the life of the engine, and cause engine damage in severe cases; reduce engine power and performance; increase vehicle exhaust pollutant emis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F10/10C08F8/08C08F8/32C10L1/236C10L10/04
Inventor 马韵升刘杰董双建董松祥牟庆平侯晓锋金萍
Owner 山东京博众诚清洁能源有限公司
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