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A composite nano-diesel

A diesel and nanotechnology, applied in the petroleum industry, liquid carbon-containing fuels, fuels, etc., can solve the problems that the calorific value and cetane number cannot meet the requirements, the thermal stability of diesel oil is poor, and it is difficult to popularize and apply. High alkane number, high flash point, easy cold start effect

Active Publication Date: 2014-10-01
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many defects when using these technologies to prepare synthetic diesel oil. For example, the mixing of dimethyl ether and water added in the raw material formula cannot be carried out under normal temperature and pressure. The pressure of the container must be increased to more than 0.5MPa, because Methyl ether is a gas at normal temperature and pressure, and can only be liquefied into a liquid under pressure, otherwise it will volatilize and escape when mixed with liquids such as methanol and water; in addition, this synthetic diesel has poor thermal stability, low flash point, and low heat value and cetane number are not up to the requirements, it is difficult to popularize and apply

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The technical requirements for methanol used in the following examples are: methanol content ≥ 99.5%; the stirring involved in each step of the following examples is electric stirring, and the speed is 36r / min; in the steps 8) or 7) of each example, use All water is purified by ultrafiltration.

[0025] 1) Preparation of nano-composite anti-wear agent: 1 kg of nano-graphite and 0.05 kg of nano-zinc oxide were ground and mixed by a nano-ball mill to form a uniform nano-composite anti-wear agent;

[0026] 2) Preparation of diesel oil modifier: Weigh 0.03kg of nanocomposite antiwear agent, 0.11kg of antioxidant T501, 0.15kg of antirust and anticorrosion agent dodecenylsuccinic acid, 2.2kg of cosolvent butanol, diesel flow improver T1804 0.05 kg, cetane number improver isooctyl nitrate 3.7 kg; Stir and mix T501, dodecenylsuccinic acid, butanol, T1804 and isooctyl nitrate for 10 minutes, add nanocomposite antiwear agent, stir Mix for 5 minutes to make 6.24 kg of diesel modi...

Embodiment 2

[0035] 1) Preparation of diesel oil modifier: Weigh 0.04kg of the nanocomposite antiwear agent obtained in Example 1, weigh 0.12kg of antioxidant T501, 0.16kg of antirust and anticorrosion agent dodecenylsuccinic acid, and cosolvent fatty acid methyl Esters 2.0kg, diesel flow improver T 1804 0.05 kg, cetane number improver isooctyl nitrate 3.4 kg; T501, dodecenylsuccinic acid, fatty acid methyl ester, T 1804 and isooctyl nitrate, stirred and mixed for 10 minutes, then added nanocomposite anti-wear agent and stirred and mixed for 3 minutes until uniform, and made 5.77 kg of diesel modifier;

[0036] 2) Preparation of methanol denaturant: Weigh 2 kg of C12-16 hydrocarbons and 3.5 kg of denaturant, and stir and mix for 10 minutes to prepare 5.5 kg of methanol denaturant; the methanol denaturant is dimethyl carbonate in parts by weight: 2 Isobutyl ketone=3:1 preparation;

[0037] 3) Preparation of dimethyl ether modifier: Weigh 1.5 kg of propylene glycol phenyl ether, 1.4 kg of ...

Embodiment 3

[0044] 1) Preparation of diesel oil modifier: Weigh 0.035 kg of nanocomposite antiwear agent obtained in Example 1, 0.15 kg of antioxidant T501, 0.18 kg of antirust and anticorrosion agent dodecenylsuccinic acid, 2.4 kg of cosolvent, and flow Improver T1804 0.065 kg, cetane number improver isooctyl nitrate 3.1 kg;

[0045] The antioxidant T501, antirust and anticorrosion agent dodecenylsuccinic acid, cosolvent, diesel oil flow improver T1804 and cetane number improver isooctyl nitrate were fully stirred and mixed for 9 minutes until uniform, and then added The nano-composite anti-wear agent was stirred and mixed for 6 minutes until uniform, and 5.93 kg of diesel oil modifier was prepared; the co-solvent was prepared according to the weight ratio of fatty acid methyl ester:toluene=0.5:2.5;

[0046] 2) Preparation of methanol denaturant: Weigh 1.8 kg of C12-16 hydrocarbons and 3.9 kg of denaturant, and stir and mix for 12 minutes to prepare 5.7 kg of methanol denaturant; the den...

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PUM

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Abstract

The present invention mixes antioxidant, antirust and anticorrosion agent, diesel oil flow improver and nanocomposite antiwear agent to make diesel oil modifier, 0# diesel oil or non-standard diesel oil 160~260 parts and diesel oil modifier 4~10 parts 170-260 parts of methanol and 3.5-6.5 parts of methanol denaturant are mixed to make denatured methanol; use propylene glycol phenyl ether, dipropylene glycol methyl Ether, affinity agent to make dimethyl ether modifier, 160~230 parts of dimethyl ether and 4.7~6.9 parts of dimethyl ether modifier are mixed in a closed container to make modified dimethyl ether, modified dimethyl ether 165 ~260 parts and 60-120 parts of ultra-filtered purified water are mixed to make ether aqueous solution; finally, 170-270 parts of modified diesel oil, 170-270 parts of denatured methanol and 260-360 parts of ether aqueous solution are mixed to make composite nano-diesel. Its technical indicators meet the national standards. The product has a clear appearance, good stability, easy cold start, high flash point, low cost and low exhaust pollutants.

Description

technical field [0001] The invention relates to a liquid fuel for a diesel locomotive, in particular to a composite nano-diesel which uses methanol and dimethyl ether as main raw materials to replace diesel fuel. Background technique [0002] With the wide use of various diesel engines, the consumption of diesel is increasing year by year. However, a large amount of diesel consumption will inevitably lead to further aggravation of vehicle emissions of harmful substances. Due to the serious impact of exhaust emissions on the ecological environment, human health and economic development, governments of various countries have successively formulated strict emission regulations to limit the emission of harmful substances from diesel vehicles. Therefore, further reducing the fuel consumption and pollution of diesel vehicles are two major problems to be solved urgently. Among the many solutions, the method of using modified additives composed of diesel oil and related substances...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/02C10L1/04C10L1/26C10L1/222C10L1/23C10L1/20C10L1/195C10L1/188C10L1/19C10L1/182C10L1/185C10L1/16C10L1/12C10L1/10
Inventor 马学毅杨圣华应卫
Owner LANZHOU UNIVERSITY
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