A kind of pour point depressant composition for diesel oil and its preparation method and application

The technology of a pour point depressant and composition is applied in the field of diesel fuel pour point depressant composition and its preparation, which can solve the problems of poor sensitivity, insignificant reduction of diesel condensation point and cold filter point, single-targetedness, etc., and achieve enhanced depressant coagulation effect

Active Publication Date: 2021-05-11
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These pour point depressants are single-targeted and poorly sensitive to diesel, and the condensation point and cold filter point of diesel are not significantly reduced. The development of clean, efficient and universally applicable pour point depressants has become the focus of current research.

Method used

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  • A kind of pour point depressant composition for diesel oil and its preparation method and application
  • A kind of pour point depressant composition for diesel oil and its preparation method and application
  • A kind of pour point depressant composition for diesel oil and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A diesel oil pour point depressant composition, calculated by mass percentage, each component and its content are as follows:

[0036]

[0037] The preparation of tetradecyl methacrylate-N-vinylimidazole: the tetradecyl methacrylate and N-vinylimidazole that the molar ratio is 3:1 are mixed, join in the toluene solvent, in the reaction mass 0.9% Under the condition of benzoyl peroxide as an initiator, react at 120° C. for 9 hours to obtain myristyl methacrylate-N-vinylimidazole pour point depressant.

[0038] The preparation method of the diesel oil pour point depressant composition is to directly mix each raw material component according to the mass ratio to obtain the diesel oil pour point depressant composition.

[0039] The application method of the diesel pour point depressant composition in diesel is as follows: the composition is added to Songjiang 0# diesel oil according to the mass of 0.15%, and ultrasonically dispersed at 40° C. for 30 minutes. The condens...

Embodiment 2

[0041] A diesel oil pour point depressant composition, calculated by mass percentage, each component and its content are as follows:

[0042]

[0043] The preparation of tetradecyl methacrylate-N-vinylimidazole: the tetradecyl methacrylate and N-vinylimidazole that the molar ratio is 3:1 are mixed, join in the toluene solvent, in the reaction mass 0.9% Under the condition of benzoyl peroxide as an initiator, react at 120° C. for 9 hours to obtain myristyl methacrylate-N-vinylimidazole pour point depressant.

[0044] The preparation method of the diesel oil pour point depressant composition is to directly mix each raw material component according to the mass ratio to obtain the diesel oil pour point depressant composition.

[0045] The application method of the diesel pour point depressant composition in diesel is as follows: the composition is added to Songjiang 0# diesel oil according to the mass of 0.15%, and ultrasonically dispersed at 40° C. for 30 minutes. The condens...

Embodiment 3

[0047] A diesel oil pour point depressant composition, calculated by mass percentage, each component and its content are as follows:

[0048]

[0049] The preparation of tetradecyl methacrylate-N-vinylimidazole: the tetradecyl methacrylate and N-vinylimidazole that the molar ratio is 3:1 are mixed, join in the toluene solvent, in the reaction mass 0.9% Under the condition of benzoyl peroxide as an initiator, react at 120° C. for 9 hours to obtain myristyl methacrylate-N-vinylimidazole pour point depressant.

[0050] The preparation method of the diesel oil pour point depressant composition is to directly mix each raw material component according to the mass ratio to obtain the diesel oil pour point depressant composition.

[0051] The application method of the diesel pour point depressant composition in diesel is as follows: the composition is added to Songjiang 0# diesel oil according to the mass of 0.15%, and ultrasonically dispersed at 40° C. for 30 minutes. The condens...

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Abstract

The present invention relates to a kind of pour point depressant composition for diesel oil and its preparation method and application, the pour point depressant composition is obtained by mixing methyl ester organic solvent and myristyl methacrylate-N-vinylimidazole pour point depressant, comprising The following components and weight percentage content: methyl oleate 10~20%, methyl linoleate 20~40%, methyl palmitoleate 10~20%, tetradecyl methacrylate-N-vinylimidazolium The coagulant is 30-60%, and the above raw materials are directly mixed according to the mass ratio to obtain the diesel pour point depressant composition. Add the composition to Songjiang 0# diesel oil at a mass content of 0.15%, and ultrasonically disperse at 40°C for 30 minutes. After testing, the condensation point of diesel oil can be reduced by 13-18°C, and the cold filter point can be reduced by 5-8°C.

Description

technical field [0001] The invention belongs to the technical field of diesel oil pour point depressant, in particular relates to a diesel oil pour point depressant composition and a preparation method and application thereof. Background technique [0002] Diesel oil is a multi-component complex hydrocarbon mixture, in which n-alkanes are closely related to the low-temperature fluidity of diesel oil. Under low-temperature conditions, n-alkanes begin to precipitate continuously and form wax crystals, making the fluidity of diesel oil worse. Affect the normal use of diesel engines, resulting in more difficult storage and transportation of diesel, need to take effective measures to solve this problem. [0003] There are many ways to improve the low-temperature fluidity of diesel oil, among which the addition of diesel pour point depressant has the advantages of low cost, less dosage and good effect, and is favored by people. It is an effective method to improve the poor fluidi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/232C10L1/19C10L10/14
CPCC10L1/14C10L1/19C10L1/232C10L10/14C10L2270/026C10L2290/24C10L2290/34C10L2300/30
Inventor 韩生杨太顺陈凤飞解麦莹殷素雅薛原
Owner SHANGHAI INST OF TECH
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