TWI422675B - Light hydrocarbon fuel for automobile - Google Patents

Description

Light hydrocarbon fuel for vehicles

The invention relates to a light hydrocarbon fuel for vehicles, which mainly comprises an octane number improver such as α-methyl naphthalene or long-chain chlorinated paraffin (C15 or higher), which is free from alcohol and metal antiknock agent. A high-octane automobile fuel is obtained, which is composed of light hydrocarbon, MTBE, aromatic hydrocarbon (mixed benzene), octane improver and the like, and is formulated to have an octane number of 94 or more and conforms to Shanghai, Beijing, China IV A new type of fuel for gasoline standard vehicles.

In recent years, in Zhejiang, Shanghai, Jiangsu and other places, if light hydrocarbons are directly used as fuel for urban bus-combined vehicles, it is attractive because of the low price of light hydrocarbons and the cost savings in operation. However, the nature of light hydrocarbons themselves In view of the fact, the octane number (RON) of the research method is low, only 55-60, the fraction is light, the vapor pressure cannot meet the requirements, etc., resulting in poor power generation during application, severe knocking, and the life of the machine used. A series of shortcomings such as shortening, and thus, have greatly hindered the promotion and utilization.

At present, Shanghai and Beijing, China, all adopt the National IV gasoline standard, which limits the amount of anti-knocking agent such as manganese metal in gasoline fuel and the content of methanol.

At present, there is no use of alcohol, ether and manganese in China, and low-octane light hydrocarbons can be blended into vehicle light hydrocarbon fuels with octane number of 94 or above.

In view of the foregoing phenomenon, the inventors of the present application have developed a composition containing no alcohol and metal antiknock agent after a long period of research and development, and replaced with various chemical raw materials, with advanced process formulas and technologies to enhance the overall fuel. The octane number achieves an energy-saving and environmentally friendly effect.

The technical problem to be solved by the present invention is to provide a light hydrocarbon fuel for vehicles with an octane number (RON) of 94 or more and without using an alcohol and a metal antiknock agent for the above-mentioned deficiencies of the prior art. Raw materials, using advanced process formulas and technologies, blend low-learn octane (RON) light hydrocarbon feedstocks into automotive light hydrocarbon fuels with octane ratings of 94 or higher.

In order to solve the above technical problem, the technical solution adopted by the present invention is: a light hydrocarbon fuel for vehicle, which is composed of the following raw materials by weight: 100 parts of light hydrocarbon, 1-20 parts of MTBE (methyl tert-butyl ether) And 15 to 40 parts of an aromatic hydrocarbon, 0.1 to 1.0 part of an octane promoter, wherein the octane promoter is α-methylnaphthalene or a long-chain chlorinated paraffin.

The α-methylnaphthalene (also known as 1-methylnaphthalene) used in the present invention is a commercially available product, and a small amount of α-methylnaphthalene is added to a light hydrocarbon fuel for vehicles to prevent peroxide during combustion. The generation can also greatly improve the antiknock performance and octane number of light hydrocarbon fuels for vehicles.

The long-chain chlorinated paraffin (C15 or higher) used in the present invention, for example, chlorinated paraffin-52, also known as chlorinated hydrocarbon-50-54 [chlorinated paraffin (50%-54%)], chlorinated paraffin-42, Chlorinated paraffin-70 or a mixture thereof, these chlorinated paraffins are commercially available.

Another technical solution adopted by the present invention is: a light hydrocarbon fuel for vehicles, which is composed of the following raw materials by weight: 100 parts of light hydrocarbon, 1 to 20 parts of MTBE, 15 to 40 parts of aromatic hydrocarbon, and 1 to 10 parts of octane. The value enhancer, wherein the octane enhancer is an aromatic amine.

The aromatic amine used in the present invention may be selected from the group consisting of aniline, N-methylaniline, and methylaniline (for example, p-methylphenylamine, m-methylphenyl-amine, ortho-A). O-mehylphlamine, ethylaniline (eg p-ethyphenyl-amine, m-ethylphenylamine, o-ethyphenyamine) One or more mixtures, etc.

In the above scheme, the light hydrocarbon used in the present invention is selected from one or more of 1# stabilizing light hydrocarbon, 2# stabilizing light hydrocarbon, naphtha, plucking oil or mineral spirit. The solvent oil is selected from one of 120# solvent oil, 190# solvent oil or 200# solvent oil.

In the above embodiment, the aromatic hydrocarbon used in the present invention is a mixture selected from aromatic hydrocarbons having a distillation range of from 100 ° C to 200 ° C, and is also referred to as a mixed benzene such as a mixture of at least two of toluene, xylene or trimethylbenzene.

The light hydrocarbon fuel for vehicle of the invention is prepared by taking the above-mentioned MTBE (methyl tert-butyl ether), aromatic hydrocarbon (mixed benzene) and octane enhancer according to the raw material ratio, and the octane number is improved. The agent may be selected from α-methylnaphthalene or long-chain chlorinated paraffin (C15 or higher), for example, a mixture of one or more of chlorinated paraffin-42, chlorinated paraffin-52 or chlorinated paraffin-70, or One or more raw materials of aromatic amines are placed in a container, stirred and mixed by a static mixer, and then placed in a light hydrocarbon feedstock, stirred and mixed. Evenly.

The specific embodiments of the present invention are exemplified by the following examples of the examples, but the scope of the present invention is not limited to the contents of the embodiments.

The composition of the feasibility formula of the present invention is as follows:

Example 1:

The steps are also as described above: MTBE, aromatic hydrocarbon (mixed benzene), and α-methylnaphthalene are placed in a container, and the mixture is uniformly mixed by static mixing, and then the 2# stable light hydrocarbon raw material is placed, and the mixture is uniformly stirred and prepared. Its research octane number (RON) is 94.

The composition of the feasibility formula of the present invention is as follows:

Example 2:

Chlorinated paraffin-52 0.5 parts by weight

The light hydrocarbon fuel for vehicle of this embodiment adopts the same manner as in the foregoing Embodiment 1, and firstly mixes MTBE, aromatic hydrocarbon (mixed benzene), and chlorinated paraffin-52, and then adds 2# stable light hydrocarbon raw material, and mixes and mixes uniformly. Serve, the research octane number (RON) is 94.

The composition of the feasibility formula of the present invention is as follows:

Example 3:

In the same manner as in the first embodiment, the light hydrocarbon fuel for vehicle of the present embodiment is first mixed with MTBE, aromatic hydrocarbon (mixed benzene), and aniline, and then added with 2# stabilizing light hydrocarbon raw material, stirred and mixed uniformly, and The research octane number (RON) was 94.

The above-mentioned industrial and formula blended light hydrocarbon fuels for vehicles, the technical indicators of which have been measured, can all meet the national IV gasoline technology indicators. The vehicle has a research octane number (RON) of 94 or higher for light hydrocarbon fuels; sulfur content <50 ppm; copper sheet corrosion of 50 ° C / 3 h (grade 1); distillation range: 10% evaporation temperature 56 ° C, 50% evaporation Temperature 90 ° C, 90% evaporation temperature is 172 ° C, evaporation temperature of the final boiling point is 182 ° C; vapor pressure is 60 kPa; colloid 1 mg / 100 ml; benzene content 0.8% m / m; aromatic hydrocarbon 20% m / m; olefin 2% m /m.

All of the above indicators are in line with China's Shanghai and Beijing National IV gasoline standards.

In the formulation of the vehicle light hydrocarbon fuel of the present invention, if necessary, antistatic additives, corrosion inhibitors, etc., to enhance its more functions.

Having said that, the present invention provides a light hydrocarbon fuel for vehicles having an octane number of 94 or more and which does not contain an alcohol and a metal antiknock agent, and can form a high octane automobile fuel, which meets the needs of the public. Practicality, and no publications or public use, combined with the provisions of patents, filed an invention patent application according to law.

Claims (5)

A light hydrocarbon fuel for vehicles, characterized in that the fuel is composed of the following raw materials by weight: 100 parts of light hydrocarbon, 1-20 parts of MTBE, 15-40 parts of aromatic hydrocarbons, 0.1-1.0 parts of octane improver, wherein The octane enhancer is alpha-methylnaphthalene or long chain chlorinated paraffin. The light hydrocarbon fuel for vehicles according to claim 1, wherein the long-chain chlorinated paraffin is one of chlorinated paraffin-42, chlorinated paraffin-52, or chlorinated paraffin-70. Or several. The light hydrocarbon fuel for vehicles according to claim 1 or 2, wherein the light hydrocarbon is selected from the group consisting of 1# stabilizing light hydrocarbon, 2# stabilizing light hydrocarbon, naphtha, plucking oil or solvent oil. One or several of them. The vehicle light hydrocarbon fuel according to claim 3, wherein the solvent oil is one selected from the group consisting of 120# solvent oil, 190# solvent oil or 200# solvent oil. The light hydrocarbon fuel for vehicles according to claim 1 or 2, wherein the aromatic hydrocarbon is a mixture of aromatic hydrocarbons selected from the group consisting of a distillation range of 100 ° C to 200 ° C.