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

A technology of diesel pour point depressant and composition, which is applied in the petroleum industry, fuel additives, liquid carbon-containing fuels, etc., can solve the problems of poor effect of diesel pour point depressant, and achieve the effect of enhancing the pour point depressant effect and good dispersion effect

Active Publication Date: 2021-07-20
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem of poor effect of diesel pour point depressant at low temperature. The present invention aims to provide a diesel pour point depressant composition and its preparation method and application

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
  • 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, calculated by mass percentage, each component and its content are as follows:

[0032]

[0033] Wherein, the pour point depressant used is EVA pour point depressant.

[0034] The above raw materials are directly mixed according to the mass ratio to obtain the diesel pour point depressant composition.

[0035] 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. After testing, the condensation point and cold filter point of the commercially available 0# diesel oil containing the diesel pour point depressant composition obtained in the above examples were lowered by 10°C and 5°C, respectively.

Embodiment 2

[0037] A diesel oil pour point depressant composition, calculated by mass percentage, each component and its content are as follows:

[0038]

[0039] Wherein, the pour point depressant used is EVA pour point depressant.

[0040] The above raw materials are directly mixed according to the mass ratio to obtain the diesel pour point depressant composition.

[0041] 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. After testing, the condensation point and cold filter point of the commercially available 0# diesel oil containing the diesel pour point depressant composition obtained in the above examples were lowered by 13°C and 11°C, respectively.

Embodiment 3

[0043] A diesel oil pour point depressant composition, calculated by mass percentage, each component and its content are as follows:

[0044]

[0045] Wherein, the pour point depressant used is EVA pour point depressant.

[0046] The above raw materials are directly mixed according to the mass ratio to obtain the diesel pour point depressant composition.

[0047] 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 condensation point and cold filter point of the commercially available 0# diesel oil containing the diesel pour point depressant composition obtained in the above examples were lowered by 12°C and 3°C, respectively.

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Abstract

The invention relates to a diesel oil pour point depressant composition and its preparation method and application. It is formed by mixing an isopropyl ester organic solvent and an EVA pour point depressant, including the following components and weight percent content: isopropyl stearate 10~ 20%, isopropyl myristate 20-30%, isopropyl oleate 10%, isopropyl laurate 20-40%, pour point depressant 20-40%. The prepared composition was added into Songjiang 0# diesel at a mass of 0.15%, and ultrasonically dispersed at 40°C for 30 minutes. After testing, the condensation point of the diesel oil could be reduced by 10-13°C and the cold filter point by 3-11°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] In some cold areas of our country, due to the low temperature, diesel engines cannot operate normally, which affects people's production and life. It is precisely because under low temperature conditions, n-alkanes in diesel continue to precipitate in the form of crystals and bond with each other to form a three-dimensional network structure, thereby reducing the low temperature fluidity of diesel. [0003] At present, the most efficient way to improve the low-temperature fluidity of diesel oil is to add pour point depressant (PPD), which can improve the filtration performance of diesel oil at low temperature. This method has the advantages of good effect, less dosage, low cost, convenient operation and wide application. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/197C10L1/19C10L10/14
CPCC10L1/18C10L1/19C10L1/1973C10L10/14C10L2270/026C10L2290/24C10L2290/34C10L2300/40
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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