Preparation method of water-based micro-emulsion diesel oil

Abstract

The invention relates to an emulsification technology of motor vehicle diesel oil. According to the invention, with a anionic surfactant and non-ionic surfactant simultaneous emulsification method, 0# diesel oil (purchased from a certain gas station), water, a surfactant I, a surfactant II, a clarifying agent, and a cetane number improver are sufficiently mixed; and the mixture is subjected to a reaction, such that the micro-emulsion diesel oil is formed. Mass percentage ranges of the components are: 0# diesel oil 0.80-0.85, water 0.12-0.14, and the auxiliary agents 0.10-0.11. The diesel oil has the advantages of easy-to-obtain raw materials, simple process, good product oil intersolubility, and long stable period. When the diesel oil is used in vehicles, oil can be saved by more than 5%, and emission can be reduced by approximately 20%. The invention also relates to the preparation method of the water-based micro-emulsion diesel oil.

Description

technical field [0001] The invention relates to an emulsification technology of diesel oil for motor vehicles, which belongs to the field of petrochemical industry and new energy, in particular to the technical field of clean diesel production. technical background [0002] In the past ten years, the global demand for energy has been increasing day by day, and countries around the world are competing to "open source" and "energy saving". In the field of oil, due to the non-renewability of this resource, the amount of extraction is limited, and the price of oil products is rising year by year. In order to alleviate this contradiction, people are devoting themselves to the research and development of high-efficiency internal combustion engines, as well as to improving the quality of fuel and improving combustion efficiency. As early as the beginning of 2007, the National Development and Reform Commission and the Ministry of Science and Technology jointly issued a document - "...

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Problems solved by technology

[0003] At present, many colleges and universities and scientific research institutions in my country have successively studied various diesel emulsifiers, but the results are not satisfactory. The main reasons and manifestations are: the dispersed particles of emulsified diesel oil are relatively large, which is a thermodynamically unstable system, and the storage period is short. Miscible with national standard diesel oil, prone to sedimentation, flocculation, coalescence, demulsification, discoloration, thickening, oil-water stratification, etc., resulting in abnormal operation of the internal combustion engine or ceasefire. At the same time, a high-power emulsification device is required to prepare emulsified diesel oil high power consumption

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