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Modified vehicle fuel methanol suitable for methanol/diesel combined combustion system

A combustion system, methanol technology, applied in the field of compression combustion engine fuel, can solve the problems of insufficient mixing of air, insufficient combustion of methanol, and increased unconventional emissions, and achieve the goal of improving lubricity, atomization, and combustion efficiency Effect

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

AI Technical Summary

Problems solved by technology

Theoretically, this method can burn 70% methanol, which effectively avoids the shortcomings of the above-mentioned research methods. However, when the conventional fuel methanol is sprayed into the intake port through the alcohol injector, it is often not fully mixed with the air due to poor atomization, resulting in Methanol cannot be fully burned, which eventually brings about the disadvantages of increased unconventional emissions such as methanol and formaldehyde

Method used

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  • Modified vehicle fuel methanol suitable for methanol/diesel combined combustion system
  • Modified vehicle fuel methanol suitable for methanol/diesel combined combustion system
  • Modified vehicle fuel methanol suitable for methanol/diesel combined combustion system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030]A modified fuel methanol for vehicles used in a methanol / diesel co-combustion system, which consists of the following components in terms of mass percentage: 96% methanol, 4% composite modifier;

[0031] The composite modifier is composed of the following components in terms of mass percentage: pentane 20%, ETBE 15%, methylal 21%, tetrameric ricinoleic acid ester 18%, acetone 15%, tert-butyl acetate 10.2% , N-phenyl-α-naphthylamine 0.2%, octyldiphenylamine 0.3%, N,N'-disalicylidenediamine 0.3%.

[0032] The components are simply mixed according to the ratio to prepare vehicle modified fuel methanol I suitable for summer use.

[0033] Carry out routine performance test to modified fuel methanol I and unmodified fuel methanol, the results are shown in Table 1:

[0034] Table 1. Comparison of conventional performance test results of fuel methanol before and after modification

[0035]

[0036] It can be seen from Table 1 that the modified fuel methanol I has obvious ch...

Embodiment 2

[0045] A modified fuel methanol for vehicles used in a methanol / diesel co-combustion system, which consists of the following components in terms of mass percentage: 95% methanol, 5% composite modifier;

[0046] The composite modifier is composed of the following components in terms of mass percentage: pentane 36%, ETBE 12%, methylal 17%, tetrameric ricinoleic acid ester 14%, acetone 12%, tert-butyl acetate 8.5% , N-phenyl-α-naphthylamine 0.1%, octyldiphenylamine 0.2%, N,N'-disalicylidenediamine 0.2%.

[0047] The components are simply mixed according to the ratio to prepare vehicle modified fuel methanol II suitable for use in spring and autumn.

[0048] Carry out routine performance test to modified fuel methanol II and unmodified fuel methanol, the results are shown in Table 4:

[0049] Table 4. Comparison of conventional performance test results of fuel methanol before and after modification

[0050]

[0051] It can be seen from Table 5 that the modified fuel methanol ...

Embodiment 3

[0060] A modified fuel methanol for vehicles used in a methanol / diesel co-combustion system, which consists of the following components in terms of mass percentage: 94% methanol, 6% composite modifier;

[0061] The composite modifier is composed of the following components in terms of mass percentage: pentane 50%, ETBE 9%, methylal 14%, tetrameric ricinoleic acid ester 10%, acetone 9%, tert-butyl acetate 7.7% , N-phenyl-α-naphthylamine 0.1%, octyldiphenylamine 0.1%, N,N'-disalicylidenediamine 0.1%.

[0062] The components are simply mixed according to the ratio to prepare vehicle modified fuel methanol III suitable for winter use.

[0063] Carry out routine performance test to modified fuel methanol III and unmodified fuel methanol, the results are shown in Table 7:

[0064] Table 7. Comparison of conventional performance test results of fuel methanol before and after modification

[0065]

[0066]

[0067] It can be seen from Table 7 that the modified fuel methanol II...

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Abstract

The invention provides modified vehicle fuel methanol suitable for a methanol / diesel combined combustion system. The modified vehicle fuel methanol comprises the following components in percentage by mass: 94-96% of methanol and 4-6% of a compound modifier; the compound modifier comprises the following components in percentage by weight: 7-18% of a lubricant, 5-11% of a cosolvent, 0.3-0.8% of an anti-oxygen anti-corrosion agent and a compound atomization modifier in balancing amount; and the compound atomization modifier is prepared by mixing pentane, ETBE (Ethyl Tertiary Butyl Ether), methylal and acetone. The modified vehicle fuel methanol provided by the invention is improved in atomization property, diffusive combustibility and lubricity and restrained in metal corrosion; and after the modified vehicle fuel methanol is applied to the methanol / diesel combined combustion system, the problem that an engine body is corroded by fuel methanol is solved, the combustion efficiency of mixed gas in a cylinder is further improved, fuels are promoted to completely burn, the acceleration property of an engine and the fuel economy are improved, and the emission of harmful gas is greatly reduced.

Description

technical field [0001] The invention relates to a compression combustion engine fuel, in particular to a vehicle-used modified fuel methanol used in a methanol / diesel co-located combustion system. Background technique [0002] The self-sufficiency rate of my country's lack of oil resources is seriously insufficient, and the degree of dependence on foreign countries is increasing year by year. Since 2009, the oil import volume has been more than half for many consecutive years. With the economic development, the dependence on foreign oil will further increase. It is estimated that it may exceed 70% in 2020, becoming the largest net oil import in the world. In China, the country's oil energy security is under great pressure. Heavy-duty diesel engines are the mainstream power for national logistics, passenger transportation, industrial and agricultural machinery, and national defense. The annual consumption of diesel exceeds 80% of the total annual consumption. In addition, s...

Claims

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Application Information

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IPC IPC(8): C10L1/02C10L1/10C10L1/16C10L1/183C10L1/185C10L1/19C10L1/222C10L1/223C10L1/232
CPCC10L1/026C10L1/10C10L1/1608C10L1/1835C10L1/1852C10L1/1857C10L1/19C10L1/1905C10L1/222C10L1/223C10L1/232
Inventor 唐诗洋张晓昕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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