阅读说明：本技术 一种高醇汽油添加剂及其应用 (High-alcohol gasoline additive and application thereof ) 是由 周永刚 赖建龙 费解 于 2018-06-22 设计创作，主要内容包括：本发明属于汽油技术领域,具体涉及一种高醇汽油添加剂。所述高醇汽油添加剂包括以下重量份的各组分：碳酸二甲酯30-40,二溴甲基萘双喹啉季铵盐+丙炔醇40-50,植物油酸20-30,二茂铁5-10,石油磺酸钡5-10。本发明的高醇汽油添加剂可以1-5(wt)％的比例加入甲醇,再将含有所述添加剂的甲醇以85(vol)％以上的比例与汽油掺混,得到高醇汽油。本发明的高醇汽油添加剂不含甲基叔丁基醚,不会污染地下水；少量添加剂即可显著降低甲醇汽油对金属的腐蚀影响,可以产业化应用。(The invention belongs to the technical field of gasoline, and particularly relates to a high-alcohol gasoline additive. The high-alcohol gasoline additive comprises the following components in parts by weight: 30-40 parts of dimethyl carbonate, 40-50 parts of dibromomethylnaphthalene biquinoline quaternary ammonium salt and propiolic alcohol, 20-30 parts of vegetable oleic acid, 5-10 parts of ferrocene and 5-10 parts of barium petroleum sulfonate. The high alcohol gasoline additive of the invention can be added with methanol in the proportion of 1-5 wt%, and then the methanol containing the additive is mixed with gasoline in the proportion of more than 85 vol% to obtain the high alcohol gasoline. The high-alcohol gasoline additive does not contain methyl tert-butyl ether and does not pollute underground water; the corrosion influence of the methanol gasoline on metals can be obviously reduced by a small amount of additives, and the methanol gasoline can be industrially applied.)

1. The high-alcohol gasoline additive is characterized by comprising the following components in parts by weight:

30-40 parts of dimethyl carbonate, namely,

dibromo methylnaphthalene biquinoline quaternary ammonium salt and propiolic alcohol 40-50,

20-30 parts of vegetable oil acid,

5-10 parts of ferrocene, namely ferrocene,

5-10 parts of barium petroleum sulfonate.

2. The high-alcohol gasoline additive of claim 1 wherein the dimethyl carbonate is present in a ratio of 35 parts by weight.

3. The high-alcohol gasoline additive according to claim 1, wherein the ratio of the dibromomethylnaphthalene biquinoline quaternary ammonium salt to the propiolic alcohol is 45 parts by weight, and the dibromomethylnaphthalene biquinoline quaternary ammonium salt accounts for 30 parts by weight and the propiolic alcohol accounts for 15 parts by weight.

4. The high alcohol gasoline additive of claim 1 wherein the vegetable oil acid is present in a ratio of 25 parts by weight.

5. The high alcohol gasoline additive of claim 1 wherein the ferrocene is present in a ratio of 8 parts by weight.

6. The high alcohol gasoline additive of claim 1 wherein the barium petroleum sulfonate is present in a ratio of 8 parts by weight.

7. Use of the high alcohol gasoline additive according to any one of claims 1 to 6, wherein 85 (vol)% or more of methanol and 15 (vol)% or less of gasoline are mixed to obtain high alcohol gasoline; the methanol contains more than 95 wt% of methanol and 1-5 wt% of the high-alcohol gasoline additive.

Technical Field

The invention belongs to the technical field of gasoline, and particularly relates to a high-alcohol gasoline additive and application thereof.

Background

With the increase of global population and the continuous improvement of living standard of people, the demand of energy sources is strong day by day. Particularly, with the rapid development of petrochemical industry in the middle of the 20 th century, the development of energy industry is accelerated. The consumption of petroleum increases year by year, and the problem of environmental pollution caused by burning the petroleum product oil is more and more serious, and the petroleum product oil is used as fuel, and carbon, nitrogen, sulfur oxides and hydrocarbon contained in the tail gas discharged by automobiles cause great harm to the environment. Meanwhile, the traditional petroleum and natural gas resources are gradually lacked, according to investigation, the petroleum which can be recovered and stored is globally ascertained to be only available for about 40 years, and the search for alternative energy sources becomes the key of the future economic development of the world. Alcohols are considered as fuel oil alternative fuels of internal combustion engines with wide application prospect, and the ethanol and part of methanol are mainly applied at present. Ethanol can be added into gasoline to prepare ethanol gasoline, but the production cost of fuel ethanol is about 5000 yuan/ton, and the production cost is higher. And the production cost of the methanol is only 1200 yuan/ton, and the method has better economic benefit. In order to overcome the restriction factor of energy consumption and promote the coordinated development of economy, new energy is used for replacing resource energy, and clean gasoline containing alcohol is new process gasoline which can provide effective power for automobiles, reduce the emission of harmful gas and reduce environmental pollution and can be mixed with the current gasoline sold in the market for use. The development and application of foreign methanol gasoline began in the second oil crisis in the 70's of the last century. From the perspective of alternative energy, the research and development of methanol fuel and methanol automobile matching technology are carried out by successively investing manpower and material resources in Germany, American, Japanese and other countries.

The methanol in the methanol gasoline is not only an energy source, but also an improver and a green oxygen increasing agent for the quality of the gasoline. Because the methanol contains oxygen atoms, the gasoline is fully combusted, the total amount of harmful gases discharged by automobile exhaust can be effectively reduced by more than 50 percent, and the atmospheric environment is protected. Therefore, the methanol gasoline is environment-friendly, has low cost, saves resources, saves foreign exchanges, benefits mankind, has strong market competitiveness and has excellent development prospect. If the content of the methanol is lower than 30, the methanol is shown as low-proportion methanol gasoline, the methanol is dissolved in the gasoline, and the methanol can be out of the standard according to the European regulations; when the methanol content exceeds 30%, the methanol content should be indicated.

Through long-term development and research, the methanol gasoline produced by the prior art has a plurality of problems in actual use, and is difficult to popularize and apply in the market. The main disadvantages of methanol gasoline are: the methanol and the gasoline have poor intersolubility and are easy to separate; methanol is easy to oxidize, and acid substances produced by the method corrode oil supply systems such as an oil tank; the methanol has strong permeability and large friction, and easily burns out an oil pump and an oil nozzle, thereby causing large oil consumption; in addition, methanol has a latent heat of vaporization about 3 times that of gasoline, and a high latent heat of vaporization and a low vapor pressure cause problems such as formation of a mixed gas and difficulty in starting. Some patent technologies have health and safety hazards of raw materials added into methanol gasoline, for example, dicyclohexylamine nitrite selected from Chinese patent CN100580064C has high toxicity; benzene and xylene raw materials selected in Chinese patent CN102634383B are carcinogenic suspicions, and selected di-tert-butyl peroxide is easy to generate deflagration if not operated properly; the additive disclosed in CN101544825A, which has corrosion-inhibiting, anti-swelling and anti-corrosion effects on alcohol-based gasoline, is a macromolecular compound, and because its solubility and permeability are not as good as those of small molecular compounds, it is easy to generate covering vacancy on the metal surface, and cause cavitation corrosion, so that its corrosion-inhibiting ability is reduced.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a high-alcohol gasoline additive. Methanol gasoline with a methanol content of more than 85% by volume is called high-alcohol gasoline. The high-alcohol gasoline additive is a novel environment-friendly fuel additive product, and is characterized in that a compound additive is added into methanol (meeting the methanol index of GB338-2004 high-grade products), then the methanol is subjected to denaturation treatment, and then the methanol is mixed with ordinary gasoline according to a specified proportion to be used as vehicle fuel, so that the combustion speed, the gasification heat value, the intersolubility, the explosive force acceleration performance and other aspects of the high-alcohol gasoline additive are close to the indexes of the traditional gasoline. The methanol in the methanol gasoline is not only an energy source, but also an improver and a green oxygen increasing agent for the quality of the gasoline. Because the methanol contains oxygen atoms, the gasoline is fully combusted, the total amount of harmful gases discharged by automobile exhaust can be effectively reduced by more than 50 percent, and the atmospheric environment is protected. Therefore, the methanol gasoline is environment-friendly, has low cost, saves resources, saves foreign exchanges, benefits mankind, has strong market competitiveness and has excellent development prospect. When high-alcohol gasoline is used, the high-alcohol gasoline cannot be used with gasoline, and the engine of an automobile needs to be structurally modified, so that the compression ratio is fully improved. The high-alcohol gasoline can only be used for methanol fuel special vehicles. The specific technical scheme of the invention is as follows.

A high-alcohol gasoline additive comprises the following components in parts by weight:

30-40 parts of dimethyl carbonate, 40-50 parts of dibromomethylnaphthalene biquinoline quaternary ammonium salt and propiolic alcohol, 20-30 parts of vegetable oleic acid, 5-10 parts of ferrocene and 5-10 parts of barium petroleum sulfonate.

The dimethyl carbonate has the characteristics of high oxygen content, excellent octane value improving effect, no phase separation, low toxicity, quick biodegradability and the like, can reduce the total emission amount of hydrocarbons, carbon monoxide and formaldehyde in automobile exhaust, can overcome the defects that a common gasoline additive is easy to dissolve in water and pollutes underground water sources, and can completely replace commonly used methyl tert-butyl ether. The proportion of dimethyl carbonate is preferably 35 parts by weight.

The dibromomethylnaphthalene biquinoline quaternary ammonium salt has a corrosion inhibition effect, the propiolic alcohol and the dibromomethylnaphthalene biquinoline quaternary ammonium salt have a synergistic interaction effect, and the preferred proportion of the dibromomethylnaphthalene biquinoline quaternary ammonium salt and the dibromomethylnaphthalene biquinoline quaternary ammonium salt is 30 parts by weight and 15 parts by weight.

The vegetable oil acid is light yellow transparent oily liquid at normal temperature, is insoluble in water, is soluble in gasoline, and can be used as a demulsifier. The proportion of the vegetable oil acid is preferably 25 parts by weight.

The ferrocene is a metal organic compound, is easy to dissolve in gasoline, and can be used as an energy-saving smoke-eliminating combustion-supporting additive and an antiknock agent for gasoline. The addition of ferrocene to the diesel oil can save fuel oil by 10-14% and reduce smoke intensity in tail gas by 30-80%. The proportion of the ferrocene is preferably 8 parts by weight.

The barium petroleum sulfonate has excellent moisture resistance, salt mist resistance, salt water resistance and emulsifying performance, has good oil solubility after being heated, can be adsorbed on the surface of metal to form a protective film, prevents the metal from being corroded and rusted, and has no corrosion effect on various metals such as steel, brass, red copper, aluminum alloy, zinc and the like. The proportion of the barium petroleum sulfonate is preferably 8 parts by weight.

The application of the high-alcohol gasoline additive comprises the steps of mixing more than 85 (vol)% of methanol and less than 15 (vol)% of gasoline to obtain high-alcohol gasoline; the methanol contains more than 95 wt% of methanol and 1-5 wt% of the high-alcohol gasoline additive.

The invention has the beneficial effect that the high-alcohol gasoline additive does not contain methyl tert-butyl ether. Since methyl tert-butyl ether is very soluble in water, even very low concentrations can cause groundwater malodor. And may be carcinogenic to humans, it is only a matter of time to prohibit the use of methyl t-butyl ether. The high-alcohol gasoline additive does not contain suspicious carcinogens such as nitrite and benzene, and the raw materials are selected to meet the national standard requirements, thereby being beneficial to safety, environmental protection and healthy consumption. The corrosion influence of the methanol gasoline on metals can be obviously reduced by a small amount of the additive. The fuel has good combustion cleaning performance, can be used as a vehicle gasoline substitute, and can be applied industrially.

Detailed Description

The present invention will be described in further detail with reference to examples.

The high-alcohol gasoline additive is a novel environment-friendly fuel additive product, namely methanol (in accordance with the requirements)

GB338-2004 best-class methanol index) is added with a compound additive, and then the methanol is modified, and then the modified methanol is mixed with ordinary gasoline according to a specified proportion to be used as vehicle fuel, and the combustion speed, gasification heat value, intersolubility, explosive force, acceleration performance and other aspects of the modified methanol are close to those of the traditional gasoline. The high-alcohol gasoline consists of base gasoline, methanol and high-alcohol gasoline additive. The key technical core of high alcohol gasoline is the technical level and quality control of the additive.