CN101475850B

CN101475850B - High proportion environment friendly methanol gasoline and preparation

Info

Publication number: CN101475850B
Application number: CN2008101517306A
Authority: CN
Inventors: 张海丰; 陈明; 谢耕田
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-24
Filing date: 2008-09-24
Publication date: 2012-08-01
Anticipated expiration: 2028-09-24
Also published as: CN101475850A

Abstract

The invention discloses a method and technology for preparing novel environment-friendly automobile methanol gasoline. The high proportion environment-friendly methanol gasoline consists of 30 to 50 mass percent of gasoline, 40 to 60 mass percent of methanol and 5 to 10 mass percent of modified additive, wherein the modified additive is formed by isobutyl alcohol, isopropanol, dimethoxymethane, methyl tertiary butyl ether, acetone, dimethyl ether, ethyl ether, diethyl carbonate, heptanol, octanol, dibutyl phosphate, dimethylbenzene, benzoxazole, pyrazolone, and dibutyl phthalate according to different mass percentages. The method for preparing the methanol gasoline comprises the following steps that: the modified additive and the methanol are fully mixed according to the respective mass ratio and are added into the gasoline which accounts for partial percent of the total mass, and the mixture is stirred and then is kept stand and aged for 12 hours to obtain a finished product. The methanol gasoline has good intersolubility, improves water resistant ability, and can effectively solve the layering problem of the methanol and the gasoline. The use of the gasoline does not need to perform any change on the prior engine, has good low-temperature starting, and has no air-block phenomenon at high temperature, and the exhaust emission reaches the standard.

Description

A kind of high proportion environment friendly methanol gasoline and preparation method

Technical field

The present invention relates to a kind of method and technology of environmental protection methanol gasoline for vehicle preparation.

Background technology

At present, flourish along with automotive industry and transportation, the gasoline demand amount constantly increases, and but constantly reduces even exhausted as the prospective oil of Nonrenewable energy resources.A large amount of uses of automobile fuel gasoline, discharge tail gas has caused severe contamination to atmospheric environment, and existent environment of people in serious threat.The environmental problem that more and more comes into one's own requires to seek eco-friendly automobile fuel, to reduce emission of harmful substances in the tail gas.The minimizing of prospective oil and the raising of environmental requirement, inevitable requirement is accelerated the exploitation of new forms of energy, replaces the resource-type energy with the new energy, ensures economic coordinated development.Therefore, various countries all pay attention to and develop in succession some gasoline alternate energy source, alleviate energy shortage, satisfy requirement on environmental protection simultaneously.Coal resources in China as energy product the vast market space is provided for implementing coal system methyl alcohol, thereby methanol gasoline more and more receives people's attention as vehicle fuel in recent years than horn of plenty.The methyl alcohol advantage such as have wide material sources, oxygen level is high, octane value is high, environmental pollution is little that acts as a fuel is an ideal motor spirit substitute.Yet methyl alcohol adds the problem that faces in the gasoline at high proportion to defectives such as methyl alcohol corrodibility is strong, mutual solubility is poor, cold-starting is difficult, calorific value is low are arranged, the solution of these problems is key points of exploitation gasoline of high proportion methanol technology.

Summary of the invention

The object of the present invention is to provide a kind of high proportion environment friendly methanol gasoline and preparation method, need not to reequip under the situation of available engine, through the technical problem that should be used for overcoming the present existence of methanol gasoline of modifier.

The present invention realizes through following technical proposals:

High proportion environment friendly methanol gasoline that is proposed and preparation method are exactly on the basis of methyl alcohol and two kinds of fuel of gasoline, add the modifier that is made up of multiple constituent element.Problems such as the adding of modifier has solved that methyl alcohol corrodibility is strong, mutual solubility is poor, cold-starting difficulty and calorific value are low.Form modifier by isopropylcarbinol, Virahol, Methylal(dimethoxymethane), MTBE, acetone, dme, ether, diethyl carbonate, enanthol, octanol, dibutyl phosphite, YLENE, benzothiazole, pyrazolone, Witcizer 300.The mass percent of each constituent element is in the modifier: isopropylcarbinol or Virahol 10%～30%; Methylal(dimethoxymethane) or MTBE 5%～15%; Acetone 5%～10%; Dme or ether 5%～20%; Diethyl carbonate 5%～10%; Enanthol or octanol 2%～5%; Dibutyl phosphite 5%～10%; YLENE 5%～10%; Benzothiazole or pyrazolone 1%～5%; Witcizer 300 2%～5%, each constituent element material mass percentage ratio sum is 100%.With said high proportion environment friendly methanol gasoline is benchmark; Quality of gasoline ratio in the high proportion environment friendly methanol gasoline is 30%～50%; The methanol quality ratio is 40%～60%, and the modifier mass ratio is that the mass percent sum of 5%～10%, three kinds of materials is 100%.

Embodiment

The preparation method of high proportion environment friendly methanol gasoline is: at normal temperatures and pressures; With configuration finish and by the modifier of its shared total mass per-cent with by the methyl alcohol thorough mixing of total mass per-cent portion 50～70 minutes; Join then in the gasoline by total mass per-cent portion, stir that static ageing got product in 12 hours after 50～70 minutes.For following embodiment; By the modifier of its shared total mass per-cent and the methyl alcohol thorough mixing of pressing the total mass ratio portion 60 minutes; Join then in the gasoline by the total mass ratio portion, stir that static ageing got product in 12 hours after 60 minutes.Following three employed gasoline of embodiment are 93#; The purity of methyl alcohol is 99.5%.

Embodiment 1

The mass ratio of three kinds of constituent elements is respectively: gasoline 30%, methyl alcohol 60%, modifier 10%.

In the total mass of high proportion environment friendly methanol gasoline, the mass ratio of modifier consists of: isopropylcarbinol 3%, Methylal(dimethoxymethane) 1.5%; Acetone 1%, ether 1%, diethyl carbonate 0.5%; Enanthol 0.5%, dibutyl phosphite 0.5%, YLENE 1%; Benzothiazole 0.5%, Witcizer 300 0.5%.

Embodiment 2

The mass ratio of three kinds of constituent elements is respectively: gasoline 40%, methyl alcohol 53%, modifier 7%.

In the total mass of high proportion environment friendly methanol gasoline M60, the mass ratio of modifier consists of: Virahol 2%, MTBE 1.2%; Acetone 0.5%, dme 1%, diethyl carbonate 0.5%; Enanthol 0.3%, dibutyl phosphite 0.5%, YLENE 0.5%; Pyrazolone 0.2%, Witcizer 300 0.3%.

Embodiment 3

The mass ratio of three kinds of constituent elements is respectively: gasoline 50%, methyl alcohol 45%, modifier 5%.

In the total mass of high proportion environment friendly methanol gasoline M50, the mass ratio of modifier consists of: isopropylcarbinol 1%, Methylal(dimethoxymethane) 1%; Butanone 0.5%, ether 0.5%, diethyl carbonate 0.5%; Octanol 0.2%, dibutyl phosphite 0.5%, YLENE 0.5%; Benzothiazole 0.1%, Witcizer 300 0.2%.

The foregoing description 1,2 and 3 resulting products are carried out sampling Detection, and each item index all meets or is superior to the 93# gasoline standard, and related detection result sees table 1:

Table 1 embodiment high proportion environment friendly methanol gasoline and standard 93# gasoline detected result are relatively

Beneficial effect of the present invention is: the high proportion environment friendly methanol gasoline mutual solubility is good, has improved water-resistant capacity, has effectively solved methyl alcohol and gasoline lamination problem.Be more easily, use this gasoline to need not available engine is done any change, cold-starting is good, and high temperature does not have air-resistance phenomenon, and exhaust emissions is up to standard.

Claims

1. high proportion environment friendly methanol gasoline; Form by different mass per-cent by gasoline, methyl alcohol and modifier; It is characterized in that forming modifier by isopropylcarbinol or Virahol, Methylal(dimethoxymethane) or MTBE, acetone, dme or ether, diethyl carbonate, enanthol or octanol, dibutyl phosphite, YLENE, benzothiazole or pyrazolone, Witcizer 300, the mass percent of each constituent element is in the modifier: isopropylcarbinol or Virahol 10%～30%; Methylal(dimethoxymethane) or MTBE 5%～15%; Acetone 5%～10%; Dme or ether 5%～20%; Diethyl carbonate 5%～10%; Enanthol or octanol 2%～5%; Dibutyl phosphite 5%～10%; YLENE 5%～10%; Benzothiazole or pyrazolone 1%～5%; Witcizer 300 2%～5%, each constituent element material mass percentage ratio sum is 100%; With said high proportion environment friendly methanol gasoline is benchmark, quality of gasoline per-cent 30%～50%, and methanol quality per-cent 40%～60%, modifier mass percent 5%～10%, gasoline, methyl alcohol and additive mass percent sum are 100%.

2. according to the described high proportion environment friendly methanol gasoline of claim 1, it is characterized in that said quality of gasoline per-cent is 30%, said methanol quality per-cent 60%, said modifier mass percent 10%.

3. according to the described high proportion environment friendly methanol gasoline of claim 1, it is characterized in that said quality of gasoline per-cent is 40%, said methanol quality per-cent 53%, said modifier mass percent 7%.

4. according to the described high proportion environment friendly methanol gasoline of claim 1, it is characterized in that said quality of gasoline per-cent is 50%, said methanol quality per-cent 45%, said modifier mass percent 5%.

5. according to the preparation method of the said high proportion environment friendly methanol gasoline of claim 1; It is characterized in that at normal temperatures and pressures; With configuration finish and by the modifier of its shared total mass per-cent with by the methyl alcohol thorough mixing of total mass per-cent portion 50～70 minutes; Join then in the gasoline by total mass per-cent portion, stir that static ageing got product in 12 hours after 50～70 minutes.