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Diesel pour point depressant and preparation method and application thereof

A technology of diesel pour point depressant and active agent, which is applied in the field of diesel pour point depressant and its preparation, can solve the problems of increased total cost and poor economy, and achieves poor overcoming effect, improved low-temperature fluidity, and improved pour point depressant effect. Effect

Active Publication Date: 2019-12-13
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this patent, due to the increase of polymerized monomers and only relying on ternary polymers as diesel pour point depressants, the total cost increases, resulting in poor economics

Method used

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  • Diesel pour point depressant and preparation method and application thereof
  • Diesel pour point depressant and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A practical diesel pour point depressant containing a nonionic surfactant, comprising the following components and contents by weight:

[0030] 20 parts of fatty acid methyl ester ethoxylate,

[0031] Tween 80 20 servings,

[0032] 60 parts of tetradecyl methacrylate-glycidyl methacrylate copolymer.

[0033] Wherein, the preparation method of tetradecyl methacrylate-glycidyl methacrylate copolymer is: after the molar ratio is 3:1, tetradecyl methacrylate and glycidyl methacrylate are mixed, and then added to toluene solvent , under the condition that the total mass of the reactants is 0.9% of benzoyl peroxide as an initiator, react at 120° C. for 9 hours to obtain a tetradecyl methacrylate-glycidyl methacrylate copolymer.

[0034] The obtained tetradecyl methacrylate-glycidyl methacrylate copolymer was characterized by nuclear magnetic and infrared, and the results were as follows: figure 1 , figure 2 shown. Depend on figure 1 It can be seen that δ at h H =2.54,...

Embodiment 2

[0046] A practical diesel pour point depressant containing a nonionic surfactant, comprising the following components and contents by weight:

[0047] 20 parts of fatty acid methyl ester ethoxylate,

[0048] Tween 80 30 servings,

[0049] 50 parts of tetradecyl methacrylate-glycidyl methacrylate copolymer.

[0050] Wherein, the preparation method of tetradecyl methacrylate-glycidyl methacrylate copolymer is: after the molar ratio is 3:1, tetradecyl methacrylate and glycidyl methacrylate are mixed, and then added to toluene solvent , under the condition that the total mass of the reactants is 0.9% of benzoyl peroxide as an initiator, react at 120° C. for 9 hours to obtain a tetradecyl methacrylate-glycidyl methacrylate copolymer.

[0051] The practical preparation method of diesel pour point depressant is as follows: directly mixing fatty acid methyl ester ethoxylate, Tween 80 and tetradecyl methacrylate-glycidyl methacrylate copolymer.

[0052] Practical diesel pour point d...

Embodiment 3

[0054] A practical diesel pour point depressant containing a nonionic surfactant, comprising the following components and contents by weight:

[0055] 10 parts of fatty acid methyl ester ethoxylate,

[0056] Tween 80 40 servings,

[0057] 50 parts of tetradecyl methacrylate-glycidyl methacrylate copolymer.

[0058] Wherein, the preparation method of tetradecyl methacrylate-glycidyl methacrylate copolymer is: after the molar ratio is 3:1, tetradecyl methacrylate and glycidyl methacrylate are mixed, and then added to toluene solvent , under the condition that the total mass of the reactants is 0.9% of benzoyl peroxide as an initiator, react at 120° C. for 9 hours to obtain a tetradecyl methacrylate-glycidyl methacrylate copolymer.

[0059] The practical preparation method of diesel pour point depressant is as follows: directly mixing fatty acid methyl ester ethoxylate, Tween 80 and tetradecyl methacrylate-glycidyl methacrylate copolymer.

[0060] Practical diesel pour point d...

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Abstract

The invention relates to a diesel pour point depressant and a preparation method and application thereof. The diesel pour point depressant comprises the following components in parts by weight: 40-60parts of a nonionic surfactant and 40-60 parts of tetradecyl methacrylate-glycidyl methacrylate copolymer. Compared with the prior art, the diesel pour point depressant contains the nonionic surfactant; after the diesel pour point depressant is added into diesel, the condensation point of the diesel can be reduced by 16-19 DEG C and the cold filter plugging point is reduced by 6-9 DEG C through tests, the problem of poor low-temperature fluidity of the diesel is further solved, and a direction is provided for further popularization and application.

Description

technical field [0001] The invention belongs to the technical field of diesel pour point depressants, and relates to a diesel pour point depressant and a preparation method and application thereof. Background technique [0002] In northern my country and some cold regions, due to the low temperature, diesel engines cannot be used normally, which greatly affects people's daily life. This is mainly because in the low temperature environment, the n-alkanes in diesel oil are reduced in solubility and precipitate in the form of crystals. With the change of crystal size and number, a three-dimensional network structure is formed, which makes the low temperature fluidity of diesel oil worse. [0003] A variety of methods have been explored at home and abroad to solve the low temperature fluidity of diesel oil. At present, adding pour point depressant, the advantages of simple operation and convenient use have become a commonly used method. Various types of pour point depressants h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/19C10L1/195C10L1/198C10L10/14
CPCC10L1/14C10L1/19C10L1/1963C10L1/1985C10L10/14
Inventor 韩生杨太顺陈凤飞张方解麦莹殷素雅薛原蔺华林
Owner SHANGHAI INST OF TECH
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