Methanol fuel composite additive favorable for cold boot of compressing ignition engine

A compound additive and methanol fuel technology, applied in the field of fuel additives, to achieve the effect of increasing gasification degree and evaporation rate, simple compounding process, and no three wastes

Active Publication Date: 2017-03-22
ENERGY & ENVIRONMENT RES INST OF HEILONGJIANG PROVINCE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to: provide a kind of methanol fuel compound additive that is helpful fo

Method used

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  • Methanol fuel composite additive favorable for cold boot of compressing ignition engine
  • Methanol fuel composite additive favorable for cold boot of compressing ignition engine
  • Methanol fuel composite additive favorable for cold boot of compressing ignition engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of methanol fuel compound additive that helps compression ignition engine cold start, it is composed of the following components by mass percentage: acetone 8%, methyl acetate 7%, cyclopentane 8.5%, ethylene glycol diethyl ether 11.5% %, 1,1-dimethoxyethane 12%, bromoethane 5%, 2-methyl-2-butene 4.5%, isobutanol 17%, isoamyl alcohol 13%, octanol 7.5%, 4.5% of tert-butyl acetate, 0.75% of 2,6-di-tert-butyl mixed phenol, and 0.75% of N,N'-disalicylidenediamine.

[0029] In this embodiment, the amount of the additive added to the methanol fuel is 2% of the weight of the methanol fuel, which is suitable for the situation where the ambient temperature is above 0°C.

[0030] Table 1. Comparison of methanol fuel performance before and after adding the composite additive of this example

[0031]

[0032]

[0033] Table 2. Test results of methanol fuel anti-phase separation performance in water before and after adding the composite additive of this example

[0034...

Embodiment 2

[0039] A kind of methanol fuel compound additive that helps compression ignition engine cold start, it is composed of the following components in terms of mass percentage: acetone 16.6%, methyl acetate 6%, cyclopentane 8%, ethylene glycol diethyl ether 11 %, 1,1-dimethoxyethane 10%, bromoethane 4%, 2-methyl-2-butene 4%, isobutanol 16%, isoamyl alcohol 12%, octanol 7%, 4% tert-butyl acetate, 0.7% 2,6-di-tert-butyl mixed phenol, 0.7% N,N'-disalicylidenediamine.

[0040] In this embodiment, the amount of the additive added to the methanol fuel is 4% of the weight of the methanol fuel, which is applicable to the situation where the external ambient temperature is above -20°C.

[0041] Table 4. Comparison of methanol fuel performance before and after adding the composite additive of this example

[0042]

[0043] Table 5. Test results of methanol fuel anti-phase separation performance in water before and after adding the composite additive of this example

[0044]

[0045] ...

Embodiment 3

[0049] A kind of methanol fuel compound additive that helps compression ignition engine cold start, it is composed of the following components by mass percentage: acetone 30%, methyl acetate 5%, cyclopentane 7%, ethylene glycol diethyl ether 10% %, 1,1-dimethoxyethane 8%, bromoethane 2%, 2-methyl-2-butene 3%, isobutanol 15%, isoamyl alcohol 10%, octanol 6%, 3% tert-butyl acetate, 0.5% 2,6-di-tert-butyl mixed phenol, 0.5% N,N'-disalicylidenediamine.

[0050] In this embodiment, the amount of the additive added to the methanol fuel is 6% of the weight of the methanol fuel, which is applicable to the situation where the external ambient temperature is above -40°C.

[0051] Table 7. Comparison of methanol fuel performance before and after adding the composite additive of this example

[0052]

[0053]Table 8. Test results of methanol fuel anti-phase separation performance in water before and after adding the composite additive of this example

[0054]

[0055] Note: Add 0....

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Abstract

The invention provides a methanol fuel composite additive favorable for the cold boot of a compressing ignition engine. The methanol fuel composite additive is prepared from the following ingredients in percentage by mass: 34-45% of cosolvent, 0.5-1% of antioxygen, 0.5-1% of corrosion inhibitor for metal and the balance of a main reagent, wherein the main reagent is formed by blending acetone, methyl acetate, cyclopentane, ethylene glycol diethyl ether, 1,1-dimethoxyethane, bromoethane and 2-methyl-2-butene, and the cosolvent is formed by blending isobutyl alcohol, isoamyl alcohol, octanol and tert-butyl acetate. According to the methanol fuel composite additive disclosed by the invention, the low temperature volatilization performance of methanol is changed, the gasification degree and the evaporation rate of the methanol are increased when the methanol is burnt, the low temperature fluidity of the methanol is improved, influence on engine operation performance by a cooling effect generated by the high gasification latent heat of the methanol is avoided, and an engine can be successfully booted at the temperature of -40DEG C.

Description

technical field [0001] The invention relates to a fuel additive, in particular to a methanol fuel composite additive which is helpful for the cold start of a compression ignition engine. Background technique [0002] The latent heat of vaporization of methanol (1109kJ / kg) is relatively high. Under low temperature conditions, when the engine starts, it needs to consume more heat to vaporize the methanol fuel. In addition, the large latent heat of vaporization will make the ambient temperature drop a lot. When the temperature is lower than 10℃ When the fuel is not easy to vaporize, that is, it is difficult to start the cold. Methanol has a high viscosity, which will reduce the amount of fuel injected when the engine starts, causing a decrease in the degree of lubrication, which also increases the difficulty of cold starting. Due to the climate characteristics of the alpine regions in northern my country, when the temperature is low in winter (minimum temperature below -35°C),...

Claims

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Application Information

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IPC IPC(8): C10L1/10C10L1/16C10L1/183C10L1/185C10L1/19C10L1/20C10L1/223
CPCC10L1/10C10L1/1608C10L1/183C10L1/1852C10L1/1857C10L1/19C10L1/20C10L1/223
Inventor 张晓昕唐诗洋张树华徐晓秋陆海玲刘岩李健
Owner ENERGY & ENVIRONMENT RES INST OF HEILONGJIANG PROVINCE
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