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Pour point depressant for diesel oil

A diesel pour point depressant and Span technology, which is applied in the field of diesel additives, additives for lowering the freezing point and cold filter point of diesel oil, can solve the problems of single performance, poor broad spectrum, strong pertinence, etc., and achieves obvious effects and low cost , prepare simple effects

Active Publication Date: 2013-09-11
SHANDONG JINGBO PETROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention provides a composite diesel pour point depressant, specifically relates to a pour point depressant that is universally used for all diesel oils, and especially has a good sensitivity to diesel oil with high wax content and narrow fractions. The pour point depressant can not only improve the effect of depressing the cold filter point of diesel oil, but also reduce the cost of the pour point depressant, which has good economic benefits, and solves the problem of strong pertinence and single performance of the existing diesel pour point depressant in my country's petrochemical industry , The problem of poor broad spectrum

Method used

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  • Pour point depressant for diesel oil

Examples

Experimental program
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Effect test

Embodiment 1

[0025] The specific component distribution ratio of the pour point depressant is: 45g of polylauryl methacrylate, 30g of aromatic hydrocarbon compound—xylene, 12g of nonionic surfactant Span—Span 80, 5g of another nonionic surfactant Agent Tween - Tween 61, 3g polar nitrogen-containing compound - triethanolamine.

[0026] The specific preparation process is: first add polylauryl methacrylate, then add non-ionic surfactant Span, Tween, and polar nitrogen-containing compounds in sequence, and finally add aromatic compounds to the prescription amount, and mix thoroughly to obtain a compound product .

[0027]

Embodiment 2

[0029] The specific component distribution ratio of the pour point depressant is: 30g of polytetradecyl methacrylate, 50g of aromatic compound-xylene, 10g of nonionic surfactant Span-Span 20, 15g of another nonionic surfactant Agent Tween-Tween 20, 2g polar nitrogen-containing compound-polyethylene polyamine.

[0030] The specific preparation process is: first add polytetradecyl methacrylate, then sequentially add non-ionic surfactant Span, Tween, and polar nitrogen-containing compounds, and finally add aromatic compounds to the prescription amount, and mix thoroughly to obtain a compound product .

[0031]

Embodiment 3

[0033] The specific component distribution ratio of the pour point depressant is: 35g of polyhexadecyl methacrylate, 45g of aromatic compound-xylene, 20g of nonionic surfactant Span-Span 60, 8g of another nonionic surfactant Agent Tween-Tween 40, 4g polar nitrogen-containing compound-tetraethylenepentamine.

[0034] The specific preparation process is: first add polyhexadecyl methacrylate, then sequentially add non-ionic surfactant Span, Tween, and polar nitrogen-containing compounds, and finally add aromatic compounds to the prescription amount, and mix thoroughly to obtain a compound product .

[0035]

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Abstract

The invention discloses a pour point depressant for diesel oil, wherein polymethylacrylic acid higher ester is used as a host agent, and an arene compound, span, twain and a polar nitrogen-containing compound are used as an assistant. The substances are uniformly mixed and used for effectively reducing the cold filter plugging point of all diesel oils, and are especially better in perceptibility to diesel oils with high wax content and narrow fraction. In low temperature condition, the flowing property of diesel oils with high wax content and narrow fraction is better increased. The pour point depressant is simple to prepare, low in cost and remarkable in effect, has excellent market value, and can be used for solving the problem that the pour point depressant for diesel oil in the petrochemical industry in China is strong in pertinence, single in function and poor in broad spectrum.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry and relates to a diesel oil additive, in particular to an additive for lowering the freezing point and cold filter point of diesel oil. Background technique [0002] Diesel oil is a complex hydrocarbon mixture containing multiple components. Wax crystals will be precipitated at low temperatures. As the temperature drops, the wax crystals will increase and finally form three-dimensional network crystals. When the crystals grow to a certain extent, they will block the filter. net, thereby rendering the entire diesel engine unusable. Therefore, improving the low-temperature fluidity of diesel oil is one of the main problems to be solved urgently to increase the output of diesel oil. [0003] In my country, traditional diesel pour point depressants are generally products developed based on ethylene-vinyl acetate. These products can only produce anticoagulation effects for one or severa...

Claims

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Application Information

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IPC IPC(8): C10L1/196C10L1/198C10L1/19C10L1/16C10L10/14
Inventor 马欢牟庆平侯晓锋王雪
Owner SHANDONG JINGBO PETROCHEM
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