Formula for emulsified diesel oil

Abstract

The invention provides a formula for emulsified diesel oil. The formula comprises (wt%) 55 to 85% of diesel oil, 15 to 35% of water, 0.15 to 2.5% of oil phase emulsifier and 15% of water phase emulsifier and auxiliary agents, wherein, the oil phase emulsifier comprises span 85 (0.55 to 1.45%) and tween 85 / 60 (0.15 to 0.25%), and the water phase emulsifier and the auxiliary agents comprise oleic acid (2.5 to 9.5%), sodium hydroxide or ammonia liquor (0.55 to 0.95%), polyvinyl alcohol (0.065 to 0.085%), soya lecithin (0.1 to 0.7%), urea (0.1 to 0.7%), petroleum sodium sulfonate (0.1 to 0.19%), 2-EHN (0.9 to 1.9%) and triethanolamine (0.5 to 1.5%). A process flow is as follows: the oil phase emulsifier is added into diesel oil, then the water phase emulsifier and the auxiliary agents are added into water, two obtained mixtures are respectively stirred, a water phase mixture is added into an oil phase mixture, the two mixtures are mixed in a static mixer and then emulsified in a high-shear emulsifying machine, and then, the finished product of emulsified diesel oil is obtained.

Description

technical field [0001] The invention relates to an emulsified diesel oil formula, in particular to an emulsified diesel oil formula with stable performance and convenient use. Background technique [0002] Emulsified diesel oil is a milky ordered mixture of diesel oil and water. Because it has obvious advantages in energy saving and environmental protection compared with ordinary diesel oil, it has been valued by our country. It has been jointly developed by the National Science and Technology Commission, the Chinese Academy of Sciences, and the State Planning Commission; It is clearly pointed out that "focus on the development of fuel-saving technologies such as fuel emulsification and fuel additives." Emulsified diesel oil is not "water to oil", it is based on about 70% diesel oil, adding about 30% water, about 1% emulsified After high-strength shear emulsification, it becomes a "water-in-oil" type of environmentally friendly and energy-saving diesel oil. At present, my ...

AI Technical Summary

Problems solved by technology

At present, my country's emulsified diesel oil has certain effects in terms of energy saving and environmental pollution reduction, but there are the following problems in actual production and application: (1) Short shelf life

The general storage period is 3 months. This is because the action of molecular thermodynamics causes small water droplets to condense into large water droplets and precipitate out of the oil, which cannot be used. Therefore, it cannot be used as a commodity oil turnover, and can only be used for self-production and self-use. , which brings limitations to the promotion work

At the same time, due to the short storage period, the phenomenon of coagulation and thickening often occurs, and the phenomenon of clogging of fuel injectors occurs, which also brings inconvenience to the application.

(2), emulsification equipment is expensive

At present, most of the emulsified oils developed by various countries are milky white, which belong to the third stage of emulsified liquefied oil. When promoting, users find it difficult to accept this milky white color, and hope that the appearance should be similar to ordinary diesel oil, clear and transparent

(4), nitrogen oxide emissions have not been resolved

(5) When more than 20% water is added, the cetane number decreases significantly