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A technology for synergistic additives and methanol for vehicles, which is applied in the petroleum industry, liquid carbon-containing fuels, fuels, etc., can solve the problems of emulsion and phase separation, poor stability, incomplete combustion, etc., and achieve the compensation of methanol cetane number, Good water resistance and low temperature resistance, and the effect of improving combustion efficiency
Inactive Publication Date: 2008-12-17
西安祺祥能源科技发展有限公司
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Abstract
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Problems solved by technology
At present, there are obvious gaps in the research and development of methanol diesel across the country. It is difficult to solve the phenomenon of low-temperature phase separation resistance, water resistance phase separation and short shelf life, and the physical and chemical performance indicators of the produced methanol diesel oil do not meet the requirements of vehicle diesel oil. Performance requirements, economic value is not high
[0003] Diesel is burned in the engine. Due to incomplete combustion, the thermal efficiency of combustion cannot be fully utilized, and the fuel cannot be fully utilized. At the same time, black smoke is generated and pollutes the environment.
[0004] At present, the methanol diesel used in China is milky white. Due to the poor miscibility of diesel oil and the immiscibility with additives or emulsifiers, it is prone to milky and phase separation. The shelf life of methanol diesel produced with existing additives or emulsifiers is short and cannot be stored for a long time , the stability is poor, and the combustion efficiency of methanol diesel cannot be improved, so that methanol diesel cannot meet the requirements of vehicle diesel
Method used
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Embodiment 1
[0018] The raw material composition of this embodiment is: n-octanol 20%, n-pentanol 25%, oleic acid 25%, naphthenic acid 15%, triethanolamine 5%, Span 80 3%, acrylate 7%.
[0019] Its preparation method is as follows: in the stirring state, the above-mentioned n-octanol, n-pentanol, oleic acid, naphthenic acid, Span-80 and acrylate are sequentially poured into the reaction kettle, and stirred at a slow speed to make it Mix completely and evenly, and then gradually add the above-mentioned triethanolamine in the weight percentage under cooling conditions, fully stir to make the reaction complete, and after cooling to room temperature, put it into a barrel and seal it, that is, the vehicle methanol diesel stabilizing synergistic additive of this embodiment is obtained.
Embodiment 2
[0021] The raw material composition of this embodiment is: n-octanol 19%, n-pentanol 21%, oleic acid 26%, naphthenic acid 16%, triethanolamine 4%, Span 80 6%, acrylate 8%.
[0022] The preparation method of this embodiment is the same as that of Example 1.
Embodiment 3
[0024] The raw material composition of this embodiment is: n-octanol 18%, n-pentanol 22%, oleic acid 27%, naphthenic acid 17%, triethanolamine 3%, Span 80 4%, acrylate 9%.
[0025] The preparation method of this embodiment is the same as that of Example 1.
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Abstract
The invention discloses an additive which can stabilize and synergize the effects of a vehicle-used methanol-diesel. Under the condition of stirring, certain amounts of n-caprylic alcohol, n-amyl alcohol, oleic acid, naphthenic acid, Span-80 and acrylic ester are respectively driven into a reactor and stirred at a slow speed to be fully and evenly mixed; then under the condition of cooling, set amount of triethanolamine is gradually added and fully stirred for complete reaction; after cooling to room temperature, barreling and sealing, the additive of the invention is obtained. The additive of the invention can enhance the burning efficiency of the methanol-diesel and achieve the purpose of saving the diesel. The methanol-diesel made by using the additive is not only transparent and stable but has good water resistance and cold resistance and can be stored for a long term; the performance indexes of the methanol-diesel can basically meet the requirements of commercial diesels, can be randomly mixed with other diesels without the phenomena of emulsion separation and phase separation and can be conveniently used; the additive can improve the shortcoming of low flash point of the methanol diesel and make up the deficiency of low cetane value of the methanol.
Description
technical field [0001] The invention belongs to the technical field of methanol fuel for vehicles, and in particular relates to a stable and synergistic additive for methanol diesel for vehicles. Background technique [0002] With the rapid development of the world economy, the demand for oil in all countries in the world is constantly increasing. Based on the reality of the relative shortage of oil energy in my country, it is a requirement for national energy security to actively develop the fuel substitution industry. At present, there are obvious gaps in the research and development of methanol diesel across the country. It is difficult to solve the phenomenon of low-temperature phase separation resistance, water resistance phase separation and short shelf life, and the physical and chemical performance indicators of the produced methanol diesel oil do not meet the requirements of vehicle diesel oil. Performance requirements, economic value is not high. [0003] Diesel i...
Claims
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Application Information
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