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Composite diesel and preparation method thereof

A technology of diesel oil and grease, which is applied in the field of compound diesel oil and its preparation, can solve the problems that hinder the development of synthetic compound diesel oil, insufficient combustion, poor mutual solubility, etc., and achieve the effects of improving cold start performance, eliminating combustion smoke and complete combustion

Inactive Publication Date: 2015-08-26
刘敏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no major breakthrough in the development of the current compound diesel project. There are mainly problems such as poor power, poor mutual solubility, low flash point, insufficient combustion, and high price, which have always hindered the development of synthetic compound diesel.

Method used

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  • Composite diesel and preparation method thereof

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Effect test

Embodiment 1

[0013] A composite diesel oil, characterized in that: it is composed of the following components by weight: 20 parts of diesel oil, 2 parts of dimethyl carbonate, 1 part of tert-butanol, 1 part of isobutanol, 10 parts of ordinary kerosene, 80 parts of heavy aromatics share.

[0014] A method for preparing compound diesel oil, comprising the steps of:

[0015] (1) Grease pretreatment: Put diesel oil, common kerosene and heavy aromatics into the mixer for pre-mixing;

[0016] (2) Preparation of sodium alkoxide solution: the weight ratio of absolute ethanol and sodium is 2:1, and the temperature is raised to 80°C for reflux reaction for 3 hours;

[0017] (3) Heat the grease water bath pretreated in step (1) to 70°C, then add the sodium alkoxide solution prepared in step (2) at a constant temperature under the stirring condition of 80r / min, stir and react for 1 hour, then add dimethyl carbonate, tert-butanol and isobutanol, and then neutralize and stand for 18 hours at 90°C;

...

Embodiment 2

[0020] A composite diesel oil, characterized in that: it is composed of the following components by weight: 40 parts of diesel oil, 5 parts of dimethyl carbonate, 3 parts of tert-butanol, 3 parts of isobutanol, 20 parts of ordinary kerosene, 100 parts of heavy aromatics share.

[0021] A method for preparing compound diesel oil, comprising the steps of:

[0022] (1) Grease pretreatment: Put diesel oil, common kerosene and heavy aromatics into the mixer for pre-mixing;

[0023] (2) Preparation of sodium alkoxide solution: the weight ratio of absolute ethanol and sodium is 2:1, and the temperature is raised to 80°C for reflux reaction for 3 hours;

[0024] (3) Heat the grease water bath pretreated in step (1) to 90°C, then add the sodium alkoxide solution prepared in step (2) at a constant temperature under the stirring condition of 80r / min, stir for 3 hours, then add dimethyl carbonate, tert-butanol and isobutanol, and then neutralize and stand for 18-24h at 90°C;

[0025] (...

Embodiment 3

[0027] A composite diesel oil, characterized in that: it is composed of the following components by weight: 30 parts of diesel oil, 4 parts of dimethyl carbonate, 2 parts of tert-butanol, 2 parts of isobutanol, 15 parts of ordinary kerosene, 90 parts of heavy aromatics share.

[0028] A method for preparing compound diesel oil, comprising the steps of:

[0029] (1) Grease pretreatment: Put diesel oil, common kerosene and heavy aromatics into the mixer for pre-mixing;

[0030] (2) Preparation of sodium alkoxide solution: the weight ratio of absolute ethanol and sodium is 2:1, and the temperature is raised to 80°C for reflux reaction for 3 hours;

[0031] (3) Heat the grease water bath pretreated in step (1) to 80°C, then add the sodium alkoxide solution prepared in step (2) under constant temperature under the stirring condition of 80r / min, stir for 2 hours, then add dimethyl carbonate, tert-butanol and isobutanol, and then neutralize and stand for 21 hours at 90°C;

[0032]...

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Abstract

The invention discloses a composite diesel composed of the components of, by weight, diesel, dimethyl carbonate, tert-butanol, isobutanol, common kerosene, absorber oil and heavy aromatic hydrocarbon. The composite diesel provided by the invention has relatively high flash point, solidifying point and cetane number. The miscibility of the components is good, and the corrosivity is low. The diesel can be used for replacing a common diesel fuel. The composite diesel provided by the invention meets the indexes in automotive diesel GB19147-2009.

Description

technical field [0001] The invention relates to the field of diesel oil, in particular to a composite diesel oil and a preparation method thereof. Background technique [0002] As a non-renewable resource, petroleum has been excessively developed and used, especially in vehicle fuel, which has caused serious environmental pollution. Under the current severe situation, synthetic compound diesel, as an alternative resource for vehicle fuel, can effectively slow down the use of petroleum, reduce environmental pollution, and reduce the cost of fuel use. However, there is no major breakthrough in the development of the current compound diesel project. There are mainly problems such as poor power, poor mutual solubility, low flash point, insufficient combustion, and high price, which have always hindered the development of synthetic compound diesel. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a compound diesel oil...

Claims

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Application Information

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IPC IPC(8): C10L1/04C10L1/19C10L1/182C10L1/16
Inventor 刘敏
Owner 刘敏
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