Methyl alcohol diesel additive based on yeast grease and methyl alcohol diesel prepared by using same

Abstract

The invention relates to a methyl alcohol diesel additive based on yeast grease and methyl alcohol diesel prepared by using the same. The yeast grease is obtained by a culture medium using microorganism fermentation illegal cooking oil, starch factory wastewater and waste molasses as a substrate. The methyl alcohol diesel additive is prepared by using the yeast grease as a main ingredient. The additive comprises the following components in volume unit percent: an anti-layering hydrotropy component, an anti-corrosion anti-swelling component, a carbon-deposition-removing colloid-clearing component, a flashing-point-improving condensation-point-reducing component, and a power-improving combustion-promoting component. The methyl alcohol diesel additive is obtained by uniformly stirring the above functional components at a normal temperature. Methyl alcohol diesel with a high cetane number, a strong dynamic property, a high flashing point, and a low condensation point is prepared by 10-30%of absolute methanol or higher alcohols, 70-90% of diesel and 0.1-0.5% of the above additive. The methyl alcohol diesel is capable of solving emission pollution problems of the illegal cooking oil, the starch factory wastewater and the waste molasses, and solving problems that a refined oil product is lacked in China, capacity of methanol is excessive, and the capacity of methanol cannot be effectively used and the like.

Description

technical field [0001] The invention relates to the field of alcohol substitute fuels, in particular to a yeast oil-based methanol diesel additive and the methanol diesel produced therefrom. Background technique [0002] Alcohol fuel, as a clean, cheap and efficient alternative to fossil fuels, has attracted more and more attention due to its low cost and abundant sources, and is considered to be the most promising vehicle fuel in the field of alternative fuels. George A. Ola, the winner of the Nobel Prize in Chemistry in the United States, believes after long-term research that "methanol economy" as an alternative fuel can enable human beings to no longer depend on dwindling oil and natural gas resources, which is especially in line with the increasingly scarce petrochemical resources in our country status quo. The oxygen content of methanol accounts for 50%, its ignition limit is wider than that of diesel, and its combustion speed is higher, which is beneficial to reduce ...

AI Technical Summary

Problems solved by technology

The patent number is CN102161922A, which discloses a "methanol diesel additive and methanol diesel", which uses acetone and toluene, which are toxic and have a very low flash point, and the amount of additives is >10%, which is very large and the cost is very high; the patent number is CN102229820A discloses a "denatured methanol diesel and its blending process", which uses polymethoxymethyl ether, which is actually a polymer of methylal, which is a substance that is explicitly prohibited from being added to diesel; the patent number is CN1948443A , discloses a "fuel to replace diesel oil and its preparation method and application", the antifreeze agent is preferably sodium hydroxide, sodium hydroxide is an inorganic strong base, which is very corrosive to metals, and at the same time is Strong acid and strong alkali salt has very good electrical conductivity, so it can greatly increase the electrical conductivity of the oil and accelerate the electrochemical corrosion of the oil system; the patent number is CN101955814A, which discloses a "dimethyl ether methanol diesel mixed fuel and Its preparation method” uses dimethyl ether, which has high cost, low flash point, easy inhalation poisoning, complex production process, and dangerous storage at room temperature, as the main raw material for improving power; the patent number is CN101709234A, which discloses a “methanol diesel compound additive and preparation method", but this patent does not mention the flash point temperature of the described embodiment in the content, and it still does not solve the problem of the low flash point of methanol diesel; the patent No. is CN103911191A, which discloses a "diesel additive and its preparation method", in its described embodiment, the additive dosage is as high as 17%, but the freezing point and cold filter point are more conventional. # Compared with diesel oil, not only does not reduce, but slightly improves, it can be seen that it not only has a high cost but also has little effect; the patent No. is CN107099345A, which discloses a "bioalcohol-based fuel oil solubilizer", and the patent No. is CN106947555A. A "bioalcohol-based fuel power calorific value agent", the patent number is CN106906014A, a "bioalcohol-based light fuel flash point enhancer", the patent number is CN107338114A, and a "bioalcohol-based light fuel Depressing rheology agent for high-quality fuels”, the above four patents have a thorough analysis of various problems of alcohol-based fuels, detailed explanations of principles, and clear solutions. However, the production process of yeast fatty acids is complicated, and various factory wastewater Valuable resources such as oil and waste sugar liquid turn waste into treasure, so there are defects of high process cost and low utilization rate of industrial waste; the patent number is CN107739632A, which discloses a kind of "using microbial fermentation waste oil product as the main body to prepare methanol gasoline additive The method and application thereof", the components such as n-pentane, cyclohexane, methyl formate, ethyl acetate, dimethyl carbonate in the described examples belong to low flash point components, due to the special characteristics of diesel oil to flash point requirements (not lower than 55°C), and the flash point of refined oil follows the "minimum flash point principle", so this patent cannot be referred to

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