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Low freezing point diesel antiwear agent and preparation method thereof

An anti-wear agent and low freezing point technology, applied in chemical instruments and methods, petroleum industry, fuel additives, etc., can solve the problems of low cost, high freezing point, complex production process, etc. The effect of simple method

Active Publication Date: 2016-08-17
东营天喜化工有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to propose a method for preparing a low-condensation-point diesel anti-wear agent, aiming at the problems of high freezing point and poor anti-wear performance of the existing lipid anti-wear agent, complex production process and many wastes. Simple, no discharge of three wastes, the anti-wear agent prepared by this method has low freezing point, good anti-wear effect, can be reused 5-10 times, and has low cost

Method used

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  • Low freezing point diesel antiwear agent and preparation method thereof
  • Low freezing point diesel antiwear agent and preparation method thereof
  • Low freezing point diesel antiwear agent and preparation method thereof

Examples

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Embodiment 1

[0030] The present embodiment discloses a low-condensation-point diesel antiwear agent, which is a compound with general formula I:

[0031]

[0032] The preparation method of the above-mentioned low freezing point diesel antiwear agent is as follows.

[0033] Using linoleic acid and pentaerythritol as raw materials, spherical Al 2 o 3 The multi-component supported rare earth catalyst is a catalyst, and the ratio of raw materials is as follows in terms of mass percentage:

[0034] 60 parts of linoleic acid, 40 parts of pentaerythritol, spherical Al 2 o 3 1 part of multi-component supported rare earth catalyst.

[0035] al 2 o 3 Preparation process of multiple supported rare earth catalysts: active Al 2 o 3 As a carrier, the carrier is immersed in ZnCl 2 In a saturated solution, immerse at 70°C for 6 hours, take it out and drain it, dry it in a muffle furnace at 110°C for 6 hours, activate it at 350°C for 5 hours, and cool it to room temperature; immerse the impregn...

Embodiment 2

[0040] The present embodiment discloses a low-condensation-point diesel antiwear agent, which is a compound with general formula I:

[0041]

[0042] The preparation method of the above-mentioned low freezing point diesel antiwear agent is as follows.

[0043] Using linoleic acid and propylene glycol as raw materials, spherical Al 2 o 3 The multi-component supported rare earth catalyst is a catalyst, and the ratio of raw materials is as follows in terms of mass percentage:

[0044] 50 parts of linoleic acid, 40 parts of propylene glycol, spherical Al 2 o 3 2 parts of multi-component supported rare earth catalyst.

[0045] al 2 o 3 Preparation process of multiple supported rare earth catalysts: active Al 2 o 3 As a carrier, the carrier is immersed in ZnCl 2 Immerse in saturated solution for 4 hours at 80°C, take it out and drain, dry in a muffle furnace at 110°C for 6 hours, activate at 350-°C for 5 hours, cool to room temperature; immerse the impregnated catalyst i...

Embodiment 3

[0049] The present embodiment discloses a low-condensation-point diesel antiwear agent, which is a compound with general formula I:

[0050]

[0051] The preparation method of the above-mentioned low freezing point diesel antiwear agent is as follows.

[0052] With linolenic acid and ethylene glycol as raw materials, spherical Al 2 o 3 The multi-component supported rare earth catalyst is a catalyst, and the ratio of raw materials is as follows in terms of mass percentage:

[0053] 65 parts of linolenic acid, 40 parts of ethylene glycol, spherical Al 2 o 3 5 parts of multi-component supported rare earth catalysts.

[0054] al 2 o 3 Preparation process of multiple supported rare earth catalysts: active Al 2 o 3 As a carrier, the carrier is immersed in ZnCl 2 In a saturated solution, soak for 6 hours at 75°C, take it out and drain it, dry it in a muffle furnace at 120°C for 8 hours, activate it at 350-°C for 5 hours, and cool it to room temperature; soak the impregnat...

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Abstract

The present invention provides a diesel antiwear agent with a low pour point and a preparation method therefor. The preparation method for the diesel antiwear agent with a low pour point comprises the following steps of: a preparation process of a catalyst: taking active Al2O3 as a carrier, dipping the carrier in a saturated solution of ZnCl2, and after dipping, draining and drying, activating the carrier at high temperature and cooling the carrier to room temperature, and dipping the once dipped catalyst in a saturated solution of La(NO3)3, and after dipping, draining and drying, activating the catalyst at high temperature and cooling the catalyst to room temperature for standby; and preparation of the diesel antiwear agent with a low pour point: using long chain unsaturated fatty acid and polyol as raw materials, performing catalyzing with a Al2O3 multielement supported rare-earth catalyst, wherein the raw materials in parts by mass are: 50-70 parts of long chain unsaturated fatty acids, 20-40 parts of polyols, 0.5-5 parts of the Al2O3 multielement supported rare-earth catalyst, and 10-20 parts of xylol. The diesel antiwear agent with a low pour point provided by the present invention is low in pour point, good in antiwear effect, and simple in preparation method, and is free of emission of three wastes.

Description

technical field [0001] The invention relates to petroleum product additive technology, in particular to a low freezing point diesel antiwear agent and a preparation method thereof. Background technique [0002] Since the early 1990s, with the improvement of the refining degree of diesel oil, the sulfide content is required to be lower and lower. In many countries, accidents of rapid wear and failure of high-pressure oil pumps and injectors of diesel engines have occurred continuously. These high-pressure oil pumps and The fuel injector failure accident sounded the alarm to people, making people gradually realize the problem that the lubricity of diesel oil began to decline. Adding anti-wear agent to improve the lubricity of diesel oil is currently the most economical and effective method. [0003] Diesel antiwear agent is a functional additive for diesel, as long as it is used to improve the lubricating performance of low-sulfur diesel and reduce the wear of diesel engines....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/12C10L1/188C10L1/182C10L1/16C10L10/08B01J23/10
Inventor 厉安昕姜善琳
Owner 东营天喜化工有限公司