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Method and device for continuously preparing methanol emulsified diesel

A technology for emulsification of diesel and methanol, applied in chemical instruments and methods, mixing methods, petroleum industry, etc., can solve the problems of intermittent production, high device cost, poor product stability, etc., and achieve uniform particle size distribution, dosage saving, stability Good results

Active Publication Date: 2012-12-19
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of high device cost, intermittent production and poor product stability of existing methanol emulsified diesel oil, the present invention provides a method and equipment for continuously preparing methanol emulsified diesel oil. Very small, the stability of the emulsion has little effect on the internal combustion engine, and it can be used now.

Method used

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  • Method and device for continuously preparing methanol emulsified diesel
  • Method and device for continuously preparing methanol emulsified diesel

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A methanol solution containing a hydrophilic emulsifier is prepared in the methanol storage tank 1, and a diesel solution containing a lipophilic emulsifier is prepared in the diesel storage tank 3. Enter the emulsifier according to the ratio of water phase: oil phase = 10:90, the opening diameter of the nozzle is 0.5mm, which is a long hole, the filler is plastic mesh, and the initial impact velocity of the water phase and oil phase is 1m / s , the rotational speed of the annular filler is 300rpm, the emulsifier is a compound of Span60 and Tween80, the HLB value is 5.2, and the content of the emulsifier is 0.1% of the total mass of methanol and diesel. The average particle size of the prepared methanol-emulsified diesel is 30 μm, and it does not separate water for 10 days at room temperature, and the appearance of the methanol-emulsified diesel is clear and bright.

Embodiment 2

[0030] A methanol solution containing a hydrophilic emulsifier is prepared in the methanol storage tank 1, and a diesel solution containing a lipophilic emulsifier is prepared in the diesel storage tank 2. Enter the emulsifier according to the ratio of water phase: oil phase=15:85, the opening diameter of the nozzle is 2mm, which is a round hole, the filler is a stainless steel wire mesh, the initial impact velocity of the feed is 5m / s, the rotating speed is 800rpm, and the emulsifier is Span80 and Tween60 are compounded, the HLB value is 5.0, and the emulsifier content is 0.5% of the total mass of methanol and diesel. The prepared methanol-emulsified diesel has an average particle size of 15 μm, and remains free of stratification for 20 days at room temperature. The appearance of the methanol-emulsified diesel is clear and bright.

Embodiment 3

[0032] A methanol solution containing a hydrophilic emulsifier is prepared in the methanol storage tank 1, and a diesel solution containing a lipophilic emulsifier is prepared in the diesel storage tank 2. Enter the emulsifier according to the ratio of water phase: oil phase = 20:80. The opening diameter of the nozzle is 3mm, which is a long hole. The filler is plastic mesh. The agent is a compound of oleic acid and Tween60, the HLB value is 4.0, and the emulsifier content is 2% of the total mass of methanol and diesel. The prepared methanol-emulsified diesel has an average particle size of 10 μm, and remains free of stratification for 40 days at room temperature. The appearance of the methanol-emulsified diesel is clear and translucent.

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Abstract

The invention belongs to the technical field of methanol emulsified diesel, in particular to a method and a device for continuously preparing methanol emulsified diesel, solving the problems of high equipment cost, intermittent production, poor stability of products and the like of the prior device for preparing the methanol emulsified diesel. The method comprises the following steps: adding hydrophilic emulsifier into methanol to form a water phase; adding lipophilic emulsifier into diesel to form an oil phase; carrying out preliminary emulsion on the oil phase and the water phase under the action of momentum; and then realizing precise emulsion under the action of hypergravity. The device comprises an emulsifier; the casing of the emulsifier is internally provided with annular filling which is made of silk screen and is capable of rotating at a high speed; and the hollow part of the annular filling is provided with a water-phase nozzle and an oil-phase nozzle the outlets of which are opposite to each other. The invention has the advantages of preparing high-quality emulsifiable solution with good stability and even distribution of particle size, realizing continuous operation for preparing methanol emulsified diesel according to the actual requirement, adjusting the use level of the emulsifier according to the requirement, saving the using amount of the emulsifier, and reducing the cost of methanol emulsified diesel. The device has simple structure and easy operation.

Description

technical field [0001] The invention belongs to the technical field of methanol emulsified diesel, in particular to a method and device for continuously preparing methanol emulsified diesel. Background technique [0002] Due to the increasing shortage of petroleum resources and the increasingly serious environmental pollution, the development of low-emission oil substitute fuels has attracted the attention of countries all over the world, especially the research on alcohol fuels has always been one of the topics of great concern to the majority of scientific and technological workers. Among the many alternative fuels, methanol has attracted more and more attention in the application research of alternative fuels for internal combustion engines due to its abundant resources, reasonable price, easy preparation and good physical and chemical properties. The reason lies in my country's advantages in coal resources, and the development of coal-based fuels is an important choice. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/02B01F3/08
Inventor 刘有智焦纬洲上官民
Owner ZHONGBEI UNIV
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