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

A diesel pour point depressant and composition technology, applied in the petroleum industry, fuel additives, fuels, etc., can solve the problems of reduced diesel flow performance, restrictions on the normal use of diesel engines for diesel pipeline transportation, etc., to improve low-temperature fluidity, convenient operation, The effect of simple preparation process

Active Publication Date: 2022-04-05
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In cold regions and severe cold climates, the solidification of diesel greatly restricts the transportation of diesel pipelines and the normal use of diesel engines
At low temperature, n-alkanes in diesel continue to precipitate in the form of wax crystals, which bond with each other to form a three-dimensional network structure, which reduces the fluidity of diesel

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A diesel oil pour point depressant composition, consisting of the following components and parts by weight: 40 parts of fatty alcohol polyoxyethylene ether sodium sulfate (Ecosol SAES-70), 30 parts of fumaric acid ester and vinyl acetate copolymer, formazan 30 parts of myristyl acrylate-N-vinyl caprolactam copolymer.

[0032] Wherein, the preparation method of myristyl methacrylate-N-vinyl caprolactam copolymer is: after mixing myristyl methacrylate and N-vinyl caprolactam with a molar ratio of 3:1, join in toluene solvent, Add the initiator benzoyl peroxide in an amount of 0.9% of the total mass of myristyl methacrylate and N-vinyl caprolactam, and react at 120°C for 9 hours to obtain myristyl methacrylate-N-vinyl caprolactam copolymer. The obtained myristyl methacrylate-N-vinyl caprolactam copolymer is carried out nuclear magnetic field and infrared characterization, the result is respectively as follows figure 1 and figure 2 shown. Depend on figure 1 It can be ...

Embodiment 2

[0036] A diesel pour point depressant composition, which is composed of the following components and parts by weight: 30 parts of fatty alcohol polyoxyethylene ether sodium sulfate (Ecosol SAES-70), 10 parts of fumaric acid ester and vinyl acetate copolymer, formazan 60 parts of myristyl acrylate-N-vinyl caprolactam copolymer.

[0037] Wherein, the preparation method of myristyl methacrylate-N-vinyl caprolactam copolymer is: after mixing myristyl methacrylate and N-vinyl caprolactam with a molar ratio of 3:1, join in toluene solvent, Add tetradecyl methacrylate and 0.9% benzoyl peroxide of the total mass of N-vinyl caprolactam as an initiator, and react at 120°C for 9 hours to obtain tetradecyl methacrylate-N-vinyl caprolactam copolymer .

[0038] The preparation method of the diesel pour point depressant composition is as follows: fatty alcohol polyoxyethylene ether sodium sulfate (Ecosol SAES-70), fumaric acid ester and vinyl acetate copolymer and tetradecyl methacrylate-N-...

Embodiment 3

[0041] A diesel pour point depressant composition, which is composed of the following components and parts by weight: 10 parts of fatty alcohol polyoxyethylene ether sodium sulfate (Ecosol SAES-70), 50 parts of fumaric acid ester and vinyl acetate copolymer, formazan 40 parts of myristyl acrylate-N-vinyl caprolactam copolymer.

[0042] Wherein, the preparation method of myristyl methacrylate-N-vinyl caprolactam copolymer is: after mixing myristyl methacrylate and N-vinyl caprolactam with a molar ratio of 3:1, join in toluene solvent, Add tetradecyl methacrylate and 0.9% benzoyl peroxide of the total mass of N-vinyl caprolactam as an initiator, and react at 120°C for 9 hours to obtain tetradecyl methacrylate-N-vinyl caprolactam copolymer .

[0043] The preparation method of the diesel pour point depressant composition is as follows: fatty alcohol polyoxyethylene ether sodium sulfate (Ecosol SAES-70), fumaric acid ester and vinyl acetate copolymer and tetradecyl methacrylate-N-...

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Abstract

The present invention relates to a diesel oil pour point depressant composition and its preparation method and application. The composition comprises the following components and content in parts by weight: 0-50 parts of anionic surfactant, 0-50 parts of fumarate and vinyl acetate copolymer 50 parts, 30-60 parts of myristyl methacrylate-N-vinyl caprolactam copolymer; the preparation method comprises: mixing the components evenly to obtain the diesel oil pour point depressant composition; adding the diesel oil pour point depressant composition To diesel to improve the low temperature fluidity of diesel. Compared with the prior art, the preparation process of the diesel pour point depressant composition and the components of the composition is simple, the operation is convenient, and the effect is obvious; the present invention can effectively improve the low-temperature fluidity of diesel oil, and reduce the condensation temperature of diesel oil by 12- 18°C, the cold filter point decreased by 6‑9°C.

Description

technical field [0001] The invention belongs to the technical field of diesel oil pour point depressant, and relates to a diesel oil pour point depressant composition and a preparation method and application thereof. Background technique [0002] In cold regions and severe cold climates, the solidification of diesel greatly restricts the transportation of diesel pipelines and the normal use of diesel engines. At low temperature, n-alkanes in diesel continue to precipitate in the form of wax crystals, which bond with each other to form a three-dimensional network structure, reducing the fluidity of diesel. At present, an efficient way to improve the low-temperature fluidity of diesel is to add a pour point depressant. A small amount of pour point depressant (PPD) can improve the wax crystallization process, inhibit the growth of wax, and then improve the low-temperature flow of diesel. [0003] At present, the types of PPD usually include the following categories: surfactant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/14C10L10/14C10L10/18C08F220/18C08F226/06
CPCC10L1/14C10L10/14C10L10/18C08F220/18C10L1/1983C10L1/2364
Inventor 韩生杨太顺解麦莹陈凤飞殷素雅蔺华林周明安薛原
Owner SHANGHAI INST OF TECH