CN1563287A

CN1563287A - Methanol gasoline and preparation method

Info

Publication number: CN1563287A
Application number: CN 200410022167
Authority: CN
Inventors: 万清平
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-28
Filing date: 2004-03-28
Publication date: 2005-01-12
Anticipated expiration: 2024-03-28
Also published as: CN1219035C

Abstract

A methanol gasoline is prepared from methanol, base oil and additive of which additive is made of isobutanol or isopropanol, diisopropyl ether, benzene or toluene or dimethylbenzene, iron naphthenate or iron pentacrbonyl, silicoaluminium phosphate or sodium dihydrogen phosphate, RP97 dispersing agent, sulfonate or carbonate and silico molecular sieve. Its preparingp rocess includes producing cosolution A by adding isobutanol or isoproponal into benzene or toluene or dimethylbenzene and then adding all above into diisopropyl ether, producing master solution B by adding gasoline into methanol, and mixing the two then adding the other additives.

Description

A kind of methanol gasoline and preparation method thereof

Technical field

The present invention relates to the fuel oil technology, be specifically related to a kind of methanol gasoline and preparation method thereof.

Background technology

The world today, the fast development of transportation is to drive the guide that economic society develops rapidly, and the fast development of transportation is according to relying in the fast development of petroleum industry and related industries thereof, therefore, the demand of oil is grown with each passing day.Because petroleum resources are non-renewable precious resources, the severe crisis that the present world faces the petroleum resources exhaustion is close at hand.To this unavoidable development trend, cause common people's great attention already.From the seventies in last century, countries in the world are dropped into great amount of manpower and material resources and financial resources in succession, carry out the research work of oil substitutes.Up to now, outside dewater energy, the nuclear energy, utilize methyl alcohol or ethanol and gasoline preparation fuel oil, become one of main direction of research.At present, compounding methanol content be lower than 25% and methanol content to be higher than 85% methanol gasoline technology ripe.And compounding methanol content be higher than 25% and methanol content be lower than 85% methanol gasoline, particularly compounding methanol content is that the methanol gasoline of 50%-70% is just becoming the emphasis that technology is assaulted fortified position, because the methanol gasoline of this middle ratio is remarkable economic and social benefits not only, and has strategic importance.To this, the report of success is arranged repeatly both at home and abroad.But analyze after deliberation, find that they all respectively have drawback: the additive that has is too much, surpasses 10%, and the price of additive is far above gasoline, so, there is not economic worth; Though the additive content that has is few, between 6%-8%, the composition that wherein has pollutes environment, thereby the use that is under an embargo, as tetraethyl lead domesticly forbid, MTBE (methyl tertiary butyl ether) etc., banned use of abroad, use at home also is about to be under an embargo; There is defective in the preparation method who has, and the methanol gasoline of preparation is apt to deteriorate.

Summary of the invention

One of purpose of the present invention provides a kind of methanol gasoline, and it has better economic, the feature of environmental protection and stability, and period of storage is longer, and is not perishable.

Two of purpose of the present invention provides a kind of preparation method of methanol gasoline, and technology is simple, and the effect performance of additive fully can be removed moisture and impurity effectively, can prepare the product of various labels on request.

A kind of methanol gasoline of the present invention, the composition weight percent is methyl alcohol 50-70%, base oil 25-44% and the additive 4.5-7% of moisture≤1%, it is characterized in that additive is isopropylcarbinol or Virahol 0.3-0.8%, diisopropyl ether 1.5-3%, benzene or toluene or the compound detergent-dispersant additive 0.2-0.8% of dimethylbenzene 1.5-2.5%, iron naphthenate or iron pentacarbonyl 0.5-0.8%, aluminium silicophosphate or SODIUM PHOSPHATE, MONOBASIC 0.05-0.2%, RP97, carbonyl hydrochlorate or sulfonate 0.02-0.08%, silicon type molecular sieve 0.4-0.6%.Base oil is gasoline or lighter hydrocarbons or virgin oil.

The methyl alcohol burning is complete and octane value is higher, and price is low than base oil, and content is higher than base oil in the methanol gasoline of preparation, thereby has remarkable economy.Though the more basic innage of additive price, consumption is few, and is little to economic influence.And the physics chemical action of additive uniqueness in methanol gasoline is the key of compounding methanol gasoline.Isopropylcarbinol in the additive or Virahol have the effect of spontaneous combustion, combustion-supporting, hydrotropy, increase power, anti-water and boosting of octane rating; Diisopropyl ether has the effect of spontaneous combustion, combustion-supporting, hydrotropy, increase power, anti-water and boosting of octane rating, and nontoxic, free from environmental pollution, can also reduce the distillation temperature of the methanol gasoline of preparation, improves cold-starting automobile and warming-up performance, reduces vehicle failure; Benzene or toluene or dimethylbenzene have the effect of spontaneous combustion, combustion-supporting, hydrotropy, increase power and boosting of octane rating; That iron naphthenate or iron pentacarbonyl have is combustion-supporting, hydrotropy, increase power and increase the effect of methanol gasoline stability; Though aluminium silicophosphate or SODIUM PHOSPHATE, MONOBASIC consumption are few, can improve conversion of methanol greatly, make the methanol gasoline homogeneous of preparation good, stability can reach more than 1 year, and it is the additive that Aalcohols fuel must use; The compound detergent-dispersant additive of RP97 has the effect of hydrotropy, antirust, breakdown of emulsion and improvement discharging, can remove and prevent settling gathering in the methanol gasoline, peace and quiet combustion system of engine, and the saving fuel oil can also prolong protection period of methanol gasoline; Carbonyl hydrochlorate or sulfonate are metal passivator; The effect that silicon type molecular sieve has suction and removes impurity.

Preparing methanol gasoline according to aforementioned proportion has the following advantages: cost is low, and economic benefit is obvious; The octane value height, alternative gasoline; Can use separately, also can use with, need not to change the parts configuration with the gasoline of existing corresponding label; Good security can reach more than 1 year storage period; Diisopropanol in the additive does not contain poisonous composition, has substituted methyl tertiary butyl ether, helps environment protection.

The preparation method of a kind of methanol gasoline of the present invention must carry out under normal temperature, normal pressure, sparkless, fire prevention, explosion-proof environment during preparation, gets material by above-mentioned part by weight, and its step is as follows:

(1) isopropylcarbinol or Virahol are joined in benzene or toluene or the dimethylbenzene, then, join together in the diisopropyl ether, synthetic solution A altogether enlarges the stack of hydrotropy amount and octane value;

(2) gasoline or lighter hydrocarbons or virgin oil are joined in the methyl alcohol miscible one-tenth main body solution B;

(3) solution A and solution B are mixed into solution C;

(4) add iron naphthenate or iron pentacarbonyl, carbonyl hydrochlorate or sulfonate, aluminium silicophosphate or SODIUM PHOSPHATE, MONOBASIC, the compound detergent-dispersant additive of RP97 in the solution C successively again, stir, make every kind of additive chemical combination complete, add silicon type molecular sieve at last, adsorption moisture and impurity make the methanol gasoline of preparation more stable;

(5) filter, remove silicon type sieve particle, promptly be prepared into needed methanol gasoline.

Adopt present method to prepare methanol gasoline, technology is simple, and the effect performance of additive fully can be prepared the product of various labels on request, and every index can reach or be better than the GB17930-1999 standard.

Embodiment

Embodiment one: carry out under normal temperature, normal pressure, sparkless, fire prevention, explosion-proof environment, its step is as follows:

(1) isopropylcarbinol 3kg is joined in the 15kg dimethylbenzene, then, join together in the 15kg diisopropyl ether, synthetic solution A altogether;

(2) 255kg gasoline is joined in the 700kg methyl alcohol miscible one-tenth main body solution B;

(3) solution A and solution B are mixed into solution C;

(4) again 5kg iron naphthenate, 0.5kg carbonyl hydrochlorate, 0.2kg aluminium silicophosphate, the compound detergent-dispersant additive of 2kgRP97 are added in the solution C successively, last, add 4kg silicon type molecular sieve, stir;

(5) filter, remove silicon type sieve particle, promptly be prepared into needed methanol gasoline, deposit 15 months after, survey every index, reach gasoline standard No. 90.

Embodiment two: carry out under normal temperature, normal pressure, sparkless, fire prevention, explosion-proof environment, its step is as follows:

(1) isopropylcarbinol 5kg is joined in the 20kg dimethylbenzene, then, join together in the 20kg diisopropyl ether, synthetic solution A altogether;

(2) 338kg gasoline is joined in the 600kg methyl alcohol miscible one-tenth main body solution B;

(3) solution A and solution B are mixed into solution C;

(4) again 6kg iron naphthenate, 0.5kg carbonyl hydrochlorate, 1.2kg aluminium silicophosphate, the compound detergent-dispersant additive of 4kgRP97 are added in the solution C successively, last, add 5kg silicon type molecular sieve, stir,

(5) filter, remove silicon type sieve particle, promptly be prepared into needed methanol gasoline, deposit 15 months after, survey every index, reach gasoline standard No. 95.

Embodiment three: carry out under normal temperature, normal pressure, sparkless, fire prevention, explosion-proof environment, its step is as follows:

(1) isopropylcarbinol 7kg is joined in the 16kg dimethylbenzene, then, join together in the 26kg diisopropyl ether, synthetic solution A altogether;

(2) 430kg gasoline is joined in the 500kg methyl alcohol miscible one-tenth main body solution B;

(3) solution A and solution B are mixed into solution C;

(4) again 6kg iron naphthenate, 0.7kg carbonyl hydrochlorate, 1.5kg aluminium silicophosphate, the compound detergent-dispersant additive of 7kgRP97 are added in the solution C successively, last, add 5kg silicon type molecular sieve, stir;

(5) filter, remove silicon type sieve particle, promptly be prepared into needed methanol gasoline, deposit 15 months after, survey every index, reach gasoline standard No. 97.

Claims

1, a kind of methanol gasoline, the composition weight percent is methyl alcohol 50-70%, base oil 25-44% and the additive 4.5-7% of moisture≤1%, it is characterized in that additive is isopropylcarbinol or Virahol 0.3-0.8%, diisopropyl ether 1.5-3%, benzene or toluene or the compound detergent-dispersant additive 0.2-0.8% of dimethylbenzene 1.5-2.5%, iron naphthenate or iron pentacarbonyl 0.5-0.8%, aluminium silicophosphate or SODIUM PHOSPHATE, MONOBASIC 0.05-0.2%, RP97, carbonyl hydrochlorate or sulfonate 0.02-0.08%, silicon type molecular sieve 0.4-0.6%.

2, a kind of methanol gasoline according to claim 1 is characterized in that base oil is gasoline or lighter hydrocarbons or virgin oil.

3, a kind of preparation method of methanol gasoline must carry out under normal temperature, normal pressure, sparkless, fire prevention, explosion-proof environment during preparation, and its step is as follows:

(1) isopropylcarbinol or Virahol are joined in benzene or toluene or the dimethylbenzene, then, join together in the diisopropyl ether, synthetic solution A altogether;

(3) solution A and solution B are mixed into solution C;

(4) again iron naphthenate or iron pentacarbonyl, carbonyl hydrochlorate or sulfonate, aluminium silicophosphate or SODIUM PHOSPHATE, MONOBASIC, the compound detergent-dispersant additive of RP97 are added in the solution C, add silicon type molecular sieve at last, stir;