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Diesel oil pour point depressant cosolvent composition and preparation method thereof

A diesel pour point depressant and co-solvent technology, which is applied in the petroleum industry, fuel additives, liquid carbon-containing fuels, etc., can solve the problems of poor solubility and dispersibility, and the decrease of the pour point depressant effect of diesel oil, so as to improve the dispersibility , Enhanced pour point depressing effect, simple preparation process

Active Publication Date: 2019-01-04
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the objectives of the present invention is to provide a diesel oil point depressant co-solvent composition, which is used to solve the problem that the above-mentioned common point depressant has poor solubility and dispersibility in diesel oil, which leads to the depressing effect of diesel oil point depressant technical problems such as reduction; the co-solvent composition can make the pour point depressant uniformly dispersed and dissolved in diesel oil in a short period of time under normal temperature conditions, which can not only reduce costs and increase efficiency, but also effectively improve the convenience of use of the pour point depressant. Greatly enriched the diversification of the market types of pour point depressants

Method used

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  • Diesel oil pour point depressant cosolvent composition and preparation method thereof
  • Diesel oil pour point depressant cosolvent composition and preparation method thereof
  • Diesel oil pour point depressant cosolvent composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A diesel oil pour point depressant co-solvent composition, which is composed of phthalate, xylene, 1-methylnaphthalene and D140 solvent oil. The composition and content of the raw materials are as follows:

[0028]

[0029] The preparation method of the above-mentioned a kind of diesel oil pour point depressant co-solvent composition is as follows: the various raw material components are mixed according to the predetermined mass ratio at room temperature and 100 rpm / min, and after 15 minutes of stirring evenly, the described co-solvent combination.

[0030] Mix the co-solvent composition and T1804 pour point depressant obtained above with a mass ratio of 1:2, and add the composite pour point depressant to 100g of Songjiang 0# diesel oil at a mass ratio of 0.1%. After stirring for 10 minutes at the rotation speed of / min, it dissolves quickly. After testing, the cold filter point and condensation point of Songjiang 0# diesel oil after adding the additive are reduced b...

Embodiment 2

[0032] A diesel oil pour point depressant co-solvent composition, which is composed of phthalate, xylene, 1-methylnaphthalene and D140 solvent oil. The composition and content of the raw materials are as follows:

[0033]

[0034] The preparation method of the above-mentioned a kind of diesel oil pour point depressant co-solvent composition is as follows: the various raw material components are mixed according to the predetermined mass ratio at room temperature and 100 rpm / min, and after 15 minutes of stirring evenly, the described co-solvent combination.

[0035] Mix the co-solvent composition obtained above with T1804 pour point depressant at a ratio of 1:2, add the composite pour point depressant to 100g Songjiang 0# diesel oil at a mass ratio of 0.1%, and stir at room temperature and 100rpm / min After 10 minutes, it dissolves quickly. After testing, the cold filter point and condensation point of Songjiang 0# diesel oil after adding the additive are respectively reduced ...

Embodiment 3

[0037] A diesel oil pour point depressant co-solvent composition, which is composed of phthalate, xylene, 1-methylnaphthalene and D140 solvent oil. The composition and content of the raw materials are as follows:

[0038]

[0039]

[0040] The preparation method of the above-mentioned a kind of diesel oil pour point depressant co-solvent composition is as follows: the various raw material components are mixed according to the predetermined mass ratio at room temperature and 100 rpm / min, and after 15 minutes of stirring evenly, the described co-solvent combination.

[0041] Mix the co-solvent composition obtained above with T1804 pour point depressant at a ratio of 1:2, and add the composite pour point depressant to 100g of Songjiang 0# diesel oil at a mass ratio of 0.1%. After stirring for 10 minutes, it dissolves quickly. After testing, the cold filter point and condensation point of Songjiang 0# diesel after adding the additive are respectively reduced by 7°C and 21°C....

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Abstract

The invention discloses a diesel oil pour point depressant cosolvent composition and a preparation method thereof. The cosolvent composition comprises, by mass percentage, 5-40% of phthalate, 10-50% of xylene, 30-80% of 1-methylnaphthalene and 5-40% of D140 solvent oil. The cosolvent composition is prepared by evenly mixing the components above according to the proportion. The cosolvent composition can effectively enhance the solubility and dispersity of a pour point depressant in diesel oil. When the composition is used along with the pour point depressant, the pour point depressant can be evenly dispersed into the diesel oil in short time without heating. By the composition, the pour point lowering effect of the equivalent pour point depressant is further enhanced on the basis that the cost of the pour point depressant is lowered and the use convenience of the pour point depressant is increased.

Description

technical field [0001] The invention relates to a diesel oil pour point depressant co-solvent composition and a preparation method thereof, belonging to the technical field of low-temperature performance improvement of diesel oil. Background technique [0002] Diesel pour point depressant is an additive that can significantly improve the poor low-temperature fluidity of diesel oil with only a small amount of addition. The development of a high-efficiency diesel pour point depressant can greatly reduce the cost of diesel fuel and alleviate the current tense energy situation . [0003] At present, most of the mainstream diesel pour point depressants at home and abroad are high molecular polymers, mainly including ethylene vinyl acetate, methacrylate, polar nitrogen-containing compounds, maleic anhydride, α-olefins, etc. . Most of these diesel pour point depressants are viscous or even solid at room temperature, and have low solubility in diesel or biodiesel at room temperatu...

Claims

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Application Information

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IPC IPC(8): C10L1/14C10L10/14C10L1/16C10L1/19
CPCC10L1/14C10L1/1608C10L1/19C10L10/14C10L2300/20C10L1/1616
Inventor 薛原陈凤飞解麦莹周明安韩生蔺华林钱曾廖天明李林飞任析朦
Owner SHANGHAI INST OF TECH
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