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Deacidifying agent decreasing acid value of liquid organic mixtures and preparation technology

A technology for the preparation of organic mixtures, applied to liquid carbon-containing fuels, biofuels, refined hydrocarbon oils, etc., can solve the problems of incomplete separation, low recovery rate, high energy consumption, etc., and achieve complete deacidification effect and production safety High, low energy consumption effect

Active Publication Date: 2016-03-02
石家庄搏澳增塑材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problems of easy emulsification, high energy consumption, and low recovery rate caused by incomplete separation in the existing deacidification technology of liquid organic mixtures such as fuel oil products, the present invention provides a low energy consumption and high-efficiency acid value reduction technology

Method used

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  • Deacidifying agent decreasing acid value of liquid organic mixtures and preparation technology

Examples

Experimental program
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Effect test

Embodiment 1

[0016] After heating the mixed fatty acid methyl esters with an acid value of 7.2mgKOH / g to 35°C, add it into the deacidification tank, then add the deacidification agent of the present invention while stirring, keep stirring for 1 hour, and let it stand for 20 minutes. The material temperature in the deacidification kettle is 55°C and normal pressure. The mass ratio of the deacidifying agent to the fatty acid in the mixed fatty acid methyl ester is 1.6:1; the deacidifying agent is composed of potassium hydroxide and isopropanol. The volume of the deacidification kettle is 3 cubic meters. The preparation process of the deacidification agent is to mix and stir potassium hydroxide and isopropanol at a temperature of 35° C. to form a solution. The mixing and stirring time is 8 hours, and the molar ratio of sodium hydroxide and isopropanol is 1:6.

[0017] After the fatty acid in the mixed fatty acid methyl ester forms a complex with the deacidifying agent, it settles naturally. ...

Embodiment 2

[0019] set the acid value to 3 7.9 mgKOH / 100mL straight-run diesel oil was heated to 25°C, then added to the deacidification tank, then added the deacidification agent of the present invention while stirring, continued stirring for 1 hour, and allowed to stand for 30 minutes. The temperature of the material in the deacidification kettle is 35° C., normal pressure, and the mass ratio of the deacidification agent to the naphthenic acid in the straight-run diesel oil is 1.8:1; the deacidification agent is composed of potassium carbonate and glycerol. The volume of the deacidification kettle is 3 cubic meters. The preparation process of the deacidification agent is to mix and stir potassium carbonate and glycerol at a temperature of 65° C. to form a solution. The mixing and stirring time is 10 hours, and the molar ratio of potassium carbonate and glycerol is 1:4.

[0020] After the naphthenic acid in the straight-run diesel forms a complex with the deacidification agent, it settl...

Embodiment 3

[0022] the acid value 7.9 After the product mixture of the esterification reaction of citric acid and butanol in mgKOH / g is heated to 25 ℃, join in the deacidification kettle, then add the deacidification agent of the present invention while stirring, keep stirring for 1 hour, and stand for 10 minute. The material temperature in the deacidification kettle is 35°C and normal pressure. The mass ratio of the deacidifying agent to the organic acid in the product mixture of the esterification reaction is 1.5:1; the deacidifying agent is composed of magnesium carbonate and propylene glycol. The volume of the deacidification kettle is 3 cubic meters. The preparation process of the deacidification agent is to mix and stir magnesium carbonate and propylene glycol at a temperature of 55° C. to form a solution. The mixing and stirring time is 6 hours, and the molar ratio of magnesium carbonate and propylene glycol is 1:8.

[0023] After the acidic catalyst and residual organic acid in...

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Abstract

The invention discloses a deacidifying agent decreasing the acid value of liquid organic mixtures and a preparation technology. Organic acid in the liquid organic mixtures like fuel oil products is removed through the method of deacidifying agent complexation. According to the preparation technology of the deacidifying agent, inorganic base, organic base and an organic solvent are mixed and stirred at certain temperature to form a high-boiling-point transparent solution with good fluidity. According to the deacidifying technology, deacidifying conditions are mild, operation is easy, production cost is low, safety is high, and the problems that in an existing deacidifying technology, emulsification is likely to occur, high energy consumption and high solvent consumption are caused in solvent evaporation, and the recovery rate is low because separation is not thorough are solved. The new deacidifying technology has the advantages that complexation extraction is thorough, the two-phase settling and layering speed is high, the solvent-oil volume ratio is small, the solvent does not need to be evaporated and can be recycled, energy consumption is low, and three waste discharge is avoided.

Description

technical field [0001] The invention relates to a high-efficiency deacidification agent for reducing the acid value of a liquid organic mixture and a preparation process. Background technique [0002] In the chemical industry, some liquid organic mixture products are often miscible with a small amount of organic acid impurities, such as fatty acids or naphthenic acids, due to the synthesis process. In order to ensure the effect of these liquid products when they are used downstream, the acid value must be lower than a certain value. In the field of liquid fuel for vehicles, such as biodiesel, straight-run diesel or distillate oil, it must go through deacidification and refining process in the production process. Acidic substances corrode metals at high temperatures, causing carbon deposits in engine injectors and increased deposits in cylinders, which intensifies wear. Excessive acidity can also cause emulsification and spoilage of diesel oil. The corrosiveness of blended...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00C11B3/06C10G21/06C10L1/02
CPCY02E50/10
Inventor 冯树波冯丹华张悦
Owner 石家庄搏澳增塑材料科技有限公司
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