High cleanness methanol diesel and preparation method thereof

Abstract

The invention discloses high cleanness methanol diesel and a preparation method thereof. The high cleanness methanol diesel consists of the following components in percentage by weight: 20 to 80 percent of national standard diesel, 10 to 45 percent of methanol, 10 to 35 percent of cosolvent, 2 to 10 percent of methyl tertiary butyl ether, and 0.01 to 2.5 percent of ethyl nitrate, wherein the cosolvent comprises the following components in percentage by weight: 10 to 40 percent of vegetable oil acid, 10 to 25 percent of fatty acid methyl ester, 5 to 10 percent of diethyl formal, 1 to 10 percent of cyclohexane and 10 to 50 percent of aviation kerosene. The preparation method comprises the following steps of: adding the raw materials into a reaction kettle in a certain ratio, and performing reaction; and after the reaction, treating by using a nano emulsifier and a high energy static mixer to obtain the product, wherein the product has the particle diameter of 0.5 to 10nm. The invention has the advantages of high technical content and simple process; and the product has stable performance, the quality meets No.0, No.-10 and No.-20 diesel oil standards in GB252-2000, and the diesel can serve as oil for motor vehicles to be widely promoted.

Description

technical field [0001] The invention belongs to the technical field of methanol fuel, and relates to a composition of high-clean methanol diesel and a preparation method thereof. Background technique [0002] Since the outbreak of the oil crisis in the 1970s, the supply of oil has become more and more tense, and the price of oil has repeatedly hit new highs. At the end of 2007, it broke through the mark of 100 US dollars per barrel. It is estimated that by 2030, the world's oil demand will reach 117.6 million barrels per day. The extra demand of 31.7 million barrels per day is equivalent to 3 Saudi Arabia's daily oil production. From the perspective of my country's situation, with the rapid development of the national economy in recent years, my country's demand for oil resources continues to grow. Even if the consumption growth rate is relatively slow, the oil supply gap in 2010 and 2020 will be 1.5× respectively. 10 8 t and 2.5×10 8 t. At that time, my country's depende...

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Problems solved by technology

[0003] Affected by the above factors, there is a serious shortage of diesel oil supply at home and abroad, which has brought great inconvenience to economic development and people's lives. In order to solve the problem of diesel shortage, the country has issued many relevant policies to encourage diesel oil to replace it. The development of energy, biodiesel is one of them, but because the production of biodiesel is limited by raw materials, biodiesel cannot really become an energy substitute product. Therefore, many domestic enterprises and individuals have begun to study methanol diesel, but encountered problems in the process of use. Many problems have been encountered. The main reason is that the production process of methanol diesel is simple and the technical content is low. As a result, the existing methanol diesel has not solved the problems of miscibility, power, emulsification and maintaining the original structure of the vehicle.

[0004] Methanol diesel currently on the domestic market has a short shelf life, strong hydrophilicity, easy deterioration and stratification, low calorific value, and a large amount of greenhouse gases (mainly carbon dioxide) and nitrogen oxides (NO x ) and sulfur oxides (SO x ), causing pollution to the environment

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