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Preparation process of organic ash-free antiknock agent

A preparation process and technology of antiknock agent are applied in the preparation process of organic ashless antiknock agent, and the preparation technology field of organic ashless gasoline antiknock agent, and can solve the problems of increasing oil consumption, increasing the solubility of oil products in layers, and the like, Achieve the effects of anti-oxidation and sludge removal, low energy consumption and good octane number

Active Publication Date: 2019-06-07
盘锦辽河油田大力集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, alcohol additives also have problems such as increased fuel consumption, oil stratification and water solubility.

Method used

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  • Preparation process of organic ash-free antiknock agent
  • Preparation process of organic ash-free antiknock agent
  • Preparation process of organic ash-free antiknock agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation of embodiment 1 organic ashless compound

[0026] S1: Slowly add the mixed solution of methyl acrylate and ethanol dropwise to the diethylenetriamine solution with stirring and nitrogen protection, keep the temperature at 0°C, add catalyst alumina powder and antioxidant T501, stir for 3 hours, and keep the temperature at 0°C. The addition reaction was carried out under pressure to obtain a light yellow liquid.

[0027] Wherein, by mass, the addition of diacetyl triamide is 41.27g, and by mole, the addition of diacetyl triamide is 0.4mol;

[0028] The add-on of ethanol is 27.6g, and on a molar basis, the add-on of ethanol is 0.6mol;

[0029] In molar ratio, diethylenetriamine: methyl acrylate is 1:0.7, and by mass, the addition of methyl acrylate is

[0030] 24.1g, by mole, the addition of methyl acrylate is 0.28mol;

[0031] By mass, the catalyst alumina powder is used in an amount of 4% of the mass of diethylenetriamine;

[0032] By mass, the amount...

Embodiment 2

[0040] The preparation of embodiment 2 organic ashless compounds

[0041] S1: Slowly add the mixed solution of methyl acrylate and ethanol dropwise to the triethylenetetramine solution with stirring and nitrogen protection, keep the temperature at 2°C, add catalyst alumina powder and antioxidant T501, stir for 3.5 hours, and keep the temperature at 2°C. The addition reaction was carried out under pressure to obtain a light yellow liquid.

[0042] Wherein, by mass, the addition of triethylenetetramine is 58.49g, and by mole, the addition of triethylenetetramine is 0.4mol;

[0043] The add-on of ethanol is 22.1g, and on a molar basis, the add-on of ethanol is 0.48mol;

[0044] In molar ratio, triethylenetetramine: methyl acrylate is 1:0.9, by mass, the addition of methyl acrylate is 30.1g, by mole, the addition of methyl acrylate is 0.36mol;

[0045] By mass, the catalyst alumina powder is used in an amount of 3% of the mass of triethylenetetramine;

[0046] By mass, the amou...

Embodiment 3

[0053] The preparation of embodiment 3 organic ashless compound

[0054] S1: Slowly add the mixed solution of methyl acrylate and ethanol dropwise to the triethylenetetramine solution with stirring and nitrogen protection, keep the temperature at 5 °C, add catalyst alumina powder and antioxidant T501, stir for 4 hours, and keep the temperature at 5 °C. The addition reaction was carried out under pressure to obtain a light yellow liquid.

[0055] Wherein, by mass, the addition of triethylenetetramine is 58.49g, and by mole, the addition of triethylenetetramine is 0.4mol;

[0056] The addition of ethanol is 25g;

[0057] In molar ratio, triethylenetetramine: methyl acrylate is 1:0.8, by mass, the addition of methyl acrylate is 26.8g, by mole, the addition of methyl acrylate is 0.32mol;

[0058] By mass, the catalyst alumina powder is used in an amount of 5% of the mass of triethylenetetramine;

[0059] By mass, the amount of antioxidant T501 is 0.4% of the mass of triethylene...

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Abstract

The invention discloses a preparation process of an organic ash-free antiknock agent. A mixed solution of methyl acrylate and ethanol is slowly dropwise added into a diethylenetriamine solution with stirring and nitrogen protection, an alumina catalyst and an antioxidant are added, a transparent yellowish liquid is obtained by carrying out a reaction with stirring, the liquid is added to a reaction kettle, a mixed solution of o-cresol, formaldehyde and ethanol is added, the reaction temperature is risen to be 80-90 DEG C, the mechanical stirring is performed for 3-4 h, T151A is added to S2, the ethanol reflux is performed, a reaction is carried out while stirring, standing is performed, and solvents are removed by rotary evaporation or vacuum distillation to obtain the organic ash-free antiknock agent. The preparation process has the following advantages that the preparation process is reasonable, the yield is high, the production process has no chlorine and sulfur emissions, the preparation process is safe and environmental-friendly, the energy consumption is relatively low, and the total production cost is low. The induction period of gasoline can be prolonged, and the real gum content can be reduced, so that the quality of the antiknock gasoline can be ensured, and the antiknock agent has the functions of anti-oxidation and oil sludge cleaning dispersion.

Description

technical field [0001] The invention belongs to the field of fine chemicals, and relates to a preparation process of an organic ashless antiknock agent, in particular to a preparation process of an organic ashless gasoline antiknock agent. Background technique [0002] The octane number is the most important indicator of motor gasoline. Adding gasoline antiknock agent can increase the octane number of motor gasoline. Gasoline antiknock agents are divided into two categories: metallic ash and organic ashless. Among them, metal ash includes alkyl lead-iron-based and manganese-based compounds and rare earth carboxylate antiknock agents. Due to the damage to facilities such as automobiles and spark plug cylinders caused by the combustion products of this type of gasoline antiknock agent, as well as the harm to the environment and human body, my country has stopped selling and using it in the whole country in July 2000, and the new motor gasoline index The standard puts forward v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/238
Inventor 王绍勤李胜男辛明昊张海菊葛登文郭坤杨洋王世富朱学辉
Owner 盘锦辽河油田大力集团有限公司
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