A production device and preparation method of clean dimethoxymethane diesel oil

Abstract

The invention discloses clean dimethoxymethane diesel oil, which is characterized in that the diesel oil is prepared by the following raw materials: dimethoxymethane, diesel oil and dimethoxymethane solution I, wherein the dimethoxymethane solution I is prepared by dissolving benzotriazole, dilinoleic acid, 2,6-tert-butyl-4-methylphenol, LD-r01 diesel lubricity improver, isooctyl nitrate(amyl nitrate) in the dimethoxymethane. A preparation method of the clean dimethoxymethane diesel oil comprises the following steps: A, mixing the dimethoxymethane, the diesel oil and the dimethoxymethane diesel oil solution I according to a ratio of 14.00:85.00:1.00, preparing D15 dimethoxymethane diesel oil; B, mixing the dimethoxymethane, the diesel oil and the dimethoxymethane diesel oil solution I according to the ratio of 29.00:70.00:1.00, and preparing the D30 dimethoxymethane diesel oil. Compared with the methanol diesel oil, the unique dimethoxymethane diesel oil in the invention has the advantages that the fire point of dimethoxymethane is low, cetane number is high and the like, and the dimethoxymethane diesel oil can be miscible with diesel oil in any proportion and has low cost and strong competitiveness.

Description

technical field [0001] The invention relates to the technical field of a diesel engine substitute fuel production device, in particular to a clean dimethoxymethane diesel production device and a preparation method thereof. Background technique [0002] According to preliminary data from the General Administration of Customs, the import volume of crude oil reached 240 million tons in 2010, and my country's dependence on foreign crude oil has reached 54%. The country has recognized that among all energy alternatives, coal-based energy and chemical products are currently the most feasible. [0003] Coal-to-oil (including direct liquefaction and indirect liquefaction) technology is immature, and the investment and energy consumption are high. Methanol-to-gasoline (MTG) requires 2.5 tons of methanol to produce one ton of gasoline. The technology is mature, but not energy-saving. To use the only coal in my country (the per capita coal possession in my country is only close to t...

AI Technical Summary

Problems solved by technology

Methanol diesel has been studied a lot, most of which are in the stage of theoretical research, and there are almost no real applications. The reason is that the diesel engine is a compression ignition test, and the auto-ignition temperature of methanol is much higher than that of diesel. The auto-ignition temperature of methanol is 463 ℃, and the auto-ignition temperature of diesel is 257 ℃, the cetane number of methanol is very low, methanol is added to diesel, it is difficult to start at low temperature, it will prolong the ignition delay period of diesel in the combustion chamber, the work is unstable, and knocking is prone to occur

Moreover, the additives of methanol diesel are usually relatively expensive, and the produced methanol diesel is not competitive

It is precisely because of the above reasons that methanol diesel has not been applied

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