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Wide-spectrum diesel pour point depressant composition, preparation method thereof and application of composition

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 no effect, poor pour point depressant effect, etc., and achieve improved dispersibility, excellent pour point depressant effect, Good solubility and dispersibility effect

Inactive 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

[0004] In addition, since diesel oil is a complex mixture cut from crude oil, diesel oil produced from different origins and cutting distillation ranges contains naphthenes, alkyl waxes, olefins, gums, asphalt, and non-hydrocarbons containing oxygen, nitrogen, and sulfur. There are large differences in the components of different models and different batches of the same model. Therefore, the diesel pour point depressant has a strong selectivity for diesel oil, that is, one kind of pour point depressant has a good effect on a certain diesel oil. The pour point depressing effect of the same type of diesel oil may be less effective or even ineffective for another type of diesel oil

Method used

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  • Wide-spectrum diesel pour point depressant composition, preparation method thereof and application of composition
  • Wide-spectrum diesel pour point depressant composition, preparation method thereof and application of composition
  • Wide-spectrum diesel pour point depressant composition, preparation method thereof and application of composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A broad-spectrum diesel pour point depressant composition, calculated by mass percentage, its raw material composition and content are as follows:

[0026] Benzyl methacrylate-tetradecyl methacrylate copolymer 80%

[0027] Aromatic hydrocarbon oil 10%

[0028] 1-methylnaphthalene 5%

[0029] Polar nitrogen compound 5%

[0030] Wherein, the aromatic hydrocarbon oil is D170 aromatic hydrocarbon oil;

[0031] The polar nitrogen-containing compound is triethanolamine;

[0032] The said benzyl methacrylate-tetradecyl methacrylate copolymer is composed of benzyl methacrylate and tetradecyl methacrylate in a monomer molar ratio of 1:10, a reaction temperature of 120°C, and toluene as a solvent. Benzoyl peroxide is used as the initiator and is prepared after 8 hours of reaction time.

[0033] The above-mentioned high-efficiency broad-spectrum diesel pour point depressant composition and diesel were added to Nanqiao 0# diesel, Songjiang 0# diesel and Haiwan 0# diesel at a mass ratio of 3:10...

Embodiment 2

[0039] A broad-spectrum diesel pour point depressant composition, calculated by mass percentage, its raw material composition and content are as follows:

[0040] Benzyl methacrylate-tetradecyl methacrylate copolymer 70%

[0041] Aromatic oil 15%

[0042] 1-methylnaphthalene 10%

[0043] Polar nitrogen compound 5%

[0044] Wherein, the aromatic hydrocarbon oil is D170 aromatic hydrocarbon oil;

[0045] The polar nitrogen-containing compound is triethanolamine;

[0046] The preparation method of the benzyl methacrylate-tetradecyl methacrylate copolymer is the same as in Example 1.

[0047] The above-mentioned high-efficiency broad-spectrum diesel pour point depressant composition and diesel were added to Nanqiao 0# diesel, Songjiang 0# diesel and Haiwan 0# diesel at a mass ratio of 3:1000, respectively, and mixed and stirred evenly. After testing, After addition, the freezing points of Nanqiao 0# diesel, Songjiang 0# diesel and Haiwan 0# diesel were reduced by 24℃, 23℃ and 23℃, and the col...

Embodiment 3

[0053] A broad-spectrum diesel pour point depressant composition, calculated by mass percentage, its raw material composition and content are as follows:

[0054] Benzyl methacrylate-tetradecyl methacrylate copolymer 60%

[0055] Aromatic oil 20%

[0056] 1-methylnaphthalene 15%

[0057] Polar nitrogen compound 5%

[0058] Wherein, the aromatic oil is D140 aromatic oil;

[0059] The polar nitrogen-containing compound is triethanolamine;

[0060] The preparation method of the benzyl methacrylate-tetradecyl methacrylate copolymer is the same as in Example 1.

[0061] The above-mentioned high-efficiency broad-spectrum diesel pour point depressant composition and diesel were added to Nanqiao 0# diesel, Songjiang 0# diesel and Haiwan 0# diesel at a mass ratio of 3:1000, respectively, and mixed and stirred evenly. After testing, After the addition, the freezing points of Nanqiao 0# diesel, Songjiang 0# diesel and Haiwan 0# diesel were reduced by 23℃, 23℃ and 22℃, and the cold filter plugging po...

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Abstract

The invention discloses a wide-spectrum diesel pour point depressant composition, a preparation method thereof and an application of the composition. The pour point depressant composition comprises, in weight percent, 30-80% of benzyl methacrylate-methacrylic acid tetradecyl ester copolymers, 10-40% of arene oil, 5-50% of 1-methylnaphthalene and 5-30% of polar nitrogen-containing compounds. The raw materials are uniformly mixed according to predetermined weight percent to obtain the composition. The diesel pour point depressant composition can be rapidly dissolved in diesel oil, is high in spectrum and has remarkable pour point declining effect when being applied to different diesel, and a condensation point and a cold filter plugging point are reduced by 21-26 DEG C and 8-12 DEG C.

Description

Technical field [0001] The invention relates to a broad-spectrum diesel pour point depressant composition, a preparation method and application thereof, and belongs to the technical field of oil product performance improvement. Background technique [0002] Diesel is a kind of light petroleum product, which mainly contains normal alkanes, olefins and aromatic hydrocarbons. Among them, the melting point of normal alkanes is relatively high, and it is easy to crystallize or gel at low temperature and block diesel engine oil pipeline and filter screen, which may easily cause diesel engine to stall. Therefore, low-temperature flow performance has become an important factor limiting the use of diesel in low-temperature environments. [0003] Adding diesel pour point depressant is a simple, economical and efficient way to improve the low temperature performance of diesel. The purpose of depressing pour point is generally achieved through nucleation, eutectic, solubilization or adsorpti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/02C10L1/14C10L1/16C10L1/198C10L1/222C10L10/14
CPCC10L1/02C10L1/14C10L1/16C10L1/1608C10L1/198C10L1/2225C10L10/14
Inventor 薛原解麦莹杜葩杨志强周明安韩生蔺华林陈凤飞廉翔
Owner SHANGHAI INST OF TECH
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