CN104818058A

CN104818058A - Gasoline anti-knock additive and preparation method thereof

Info

Publication number: CN104818058A
Application number: CN201510173853.XA
Authority: CN
Inventors: 李晓楠
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-01
Filing date: 2015-04-01
Publication date: 2015-08-05

Abstract

The invention relates to a gasoline anti-knock additive and its preparation method and belongs to the field of petrochemical industry. The gasoline anti-knock additive is prepared by using the following ingredients: 15-25% of toluene, 10-15% of ortho-toluidine, 5-10% of methylcyclopentadienyl manganese tricarbonyl, 12.5-20% of isobutyl acetate, 20-35% of methyl tert butyl ether and 10-15% of diisobutylene. The preparation technology is simple, and the gasoline anti-knock additive can be prepared only by using one reactor. When the gasoline anti-knock additive is combusted, there is no sediment or residue and efficiency is high. In addition, the preparation technology is simple and the whole process is carried out in the same reactor.

Description

Detonation suppressor and preparation method thereof

Technical field:

The invention belongs to petrochemical industry, particularly relate to a kind of detonation suppressor.

Background technology:

The important indicator of motor spirit grade is the octane value of gasoline.When gasoline octane rating is low, air-fuel mixture gas firing in engine will be caused asynchronous, namely cause and to occur twice in engine combustion process or the abnormal combustion of repeatedly asynchronous explosive combustion, the sound is knocked because violent gas pulsation sends collision at cylinder internal, namely there is petrolic " knocking combustion " phenomenon, be called for short pinking.Obviously, pinking is a kind of malcombustion phenomenon of bad oil product, and it not only reduces the performance of engine, and can cause damage and early failure to engine parts.

Process and blending method carry high-octane Main Means, but also exist that investment is large, resource-constrained and change the problem such as boiling range of gasoline, often not easily realize best production combination and lack handiness.When particularly producing stop bracket gasoline, it is more difficult that simple employing Process and blending method reach target.Facts have proved, adding octane promoter is improve the cost-effective method of gasoline antiknock performance.In the gasoline that countries in the world produce, apart from outside particular requirement, all adopt the octane promoter adding some amount as a kind of effective means improving gasoline octane rating.

Tetraethyllead improves the most economical effective octane promoter of the pungent value of gasoline, widely uses in the world for many years.But tetraethyllead is violent in toxicity, its toxicity cannot be eliminated.Each World Developed Countries works out Law on Environmental Protection one after another, is limited gasoline lead amount.Up to the present, the many countries and regions comprising China achieve unleaded gasoline.Along with the process of unleaded gasoline, people start to use MTBE to carry out blended gasoline in a large number, but MTBE is oxygenatedchemicals, the discharge of oxynitrides in exhaust pollutant can be caused to increase: MTBE self calorific value is low, vast scale interpolation can make the dynamic performance of vehicle be played completely.Afterwards because MTBE is at California, USA groundwater pollution, Some Areas of USA has forbidden using MTBE in the oil, domestic many users start the gasoline antiknock finding other kind gradually, and the development of novel, efficient, clean gasoline antiknock is the urgent problem that the outer refining of petroleum industry of Now Domestic faces.

Summary of the invention:

The object of this invention is to provide a kind of detonation suppressor, its main component is by mass percentage

Dimethylbenzene: 15-25%

Ortho Toluidine: 10-15%

Methyl cyclopentyl-dialkyl-tricarbon manganium: 5-10%

Butyl acetate: 12.5-20%

Methyl tertiary butyl ether: 20-35%

Diisobutylene: 10-15%.

A kind of making method of gasoline antiknock is:

Take the dimethylbenzene of above-mentioned amount, Ortho Toluidine, methyl cyclopentyl-dialkyl-tricarbon manganium, butyl acetate and methyl tertiary butyl ether: in reactor, 53-64 degree Celsius of lower heat fused, add the diisobutylene of above-mentioned amount subsequently, uniform stirring, be warming up to 120-135 degree Celsius of stopping subsequently, cool to room temperature after uniform stirring.

Do not precipitate or residue during the gasoline antiknock burning that the inventive method prepares, the more important thing is that efficiency is high, under addition only has 3% situation, RON can improve 2.3-2.8 unit than using common octane promoter.In addition, preparation is simple, and whole process is all carry out in same reactor, and technique is relatively simple.

Embodiment:

Following embodiment illustrates technical scheme of the present invention, but protection scheme of the present invention is not limited thereto.

Embodiment 1:

A kind of gasoline antiknock, its composition and content as described below:

Dimethylbenzene: 15g

Ortho Toluidine: 10g

Methyl cyclopentyl-dialkyl-tricarbon manganium: 6g

Butyl acetate: 13g

Methyl tertiary butyl ether: 20g

Diisobutylene: 10g, above-mentioned per-cent is mass percent.

A kind of making method of detonation suppressor is:

Take the dimethylbenzene of above-mentioned amount, Ortho Toluidine, methyl cyclopentyl-dialkyl-tricarbon manganium, butyl acetate and methyl tertiary butyl ether: in reactor, 53 degrees Celsius of lower heat fused, add the diisobutylene of above-mentioned amount subsequently, uniform stirring, be warming up to 120 degrees Celsius of stoppings subsequently, cool to room temperature after uniform stirring.

The gasoline antiknock this prepared is tested, and compares and uses this gasoline antiknock to find with the RON changing conditions using common CMT (cyclopentadiene tricarbonyl manganese) as gasoline antiknock: use gasoline antiknock of the present invention than using the RON of common CMP and add 2.3 units.

Embodiment 2:

A kind of gasoline antiknock, its composition and content as described below:

Dimethylbenzene: 20g

Ortho Toluidine: 12g

Methyl cyclopentyl-dialkyl-tricarbon manganium: 8g

Butyl acetate: 17g

Methyl tertiary butyl ether: 27g

Diisobutylene: 13g, above-mentioned per-cent is mass percent.

A kind of making method of detonation suppressor is:

Take the dimethylbenzene of above-mentioned amount, Ortho Toluidine, methyl cyclopentyl-dialkyl-tricarbon manganium, butyl acetate and methyl tertiary butyl ether: in reactor, heat fused at 60 c, add the diisobutylene of above-mentioned amount subsequently, uniform stirring, be warming up to 130 degrees Celsius of stoppings subsequently, cool to room temperature after uniform stirring.

The gasoline antiknock this prepared is tested, and compares and uses this gasoline antiknock to find with the RON changing conditions using common CMT (cyclopentadiene tricarbonyl manganese) as gasoline antiknock: use gasoline antiknock of the present invention than using the RON of common CMP and add 2.8 units.

Embodiment 3:

A kind of detonation suppressor, its composition and content as described below:

Dimethylbenzene: 35g

Ortho Toluidine: 15g

Methyl cyclopentyl-dialkyl-tricarbon manganium: 10g

Butyl acetate: 20g

Methyl tertiary butyl ether: 20g

Diisobutylene: 15g, above-mentioned per-cent is mass percent.

A kind of making method of detonation suppressor is:

Take the dimethylbenzene of above-mentioned amount, Ortho Toluidine, methyl cyclopentyl-dialkyl-tricarbon manganium, butyl acetate and methyl tertiary butyl ether: in reactor, 64 degrees Celsius of lower heat fused, add the diisobutylene of above-mentioned amount subsequently, uniform stirring, be warming up to 135 degrees Celsius of stoppings subsequently, cool to room temperature after uniform stirring.

The gasoline antiknock this prepared is tested, and compares and uses this gasoline antiknock to find with the RON changing conditions using common CMT (cyclopentadiene tricarbonyl manganese) as gasoline antiknock: use gasoline antiknock of the present invention than using the RON of common CMP and add 2.5 units.

Claims

1. a detonation suppressor, its main component is by mass percentage:

Dimethylbenzene: 15-25%

Ortho Toluidine: 10-15%

Methyl cyclopentyl-dialkyl-tricarbon manganium: 5-10%

Butyl acetate: 12.5-20%

Methyl tertiary butyl ether: 20-35%

Diisobutylene: 10-15%.

2. detonation suppressor as claimed in claim 1, wherein the mass percentage content of dimethylbenzene can be: 15%, 20%, 35%; The mass percentage content of Ortho Toluidine can be: 10%, 12%, 15%.

3. the making method of the detonation suppressor described in a claim 1-2, take described dimethylbenzene, Ortho Toluidine, methyl cyclopentyl-dialkyl-tricarbon manganium, butyl acetate and methyl tertiary butyl ether: in reactor, 53-64 degree Celsius of lower heat fused, add described diisobutylene subsequently, uniform stirring, be warming up to 120-135 degree Celsius of stopping subsequently, cool to room temperature after uniform stirring.