Primary oil aid, and primary oil and preparation method thereof

Abstract

The invention belongs to the field of petrochemical industry, and particularly relates to a primary oil aid, and primary oil and a preparation method thereof, wherein the primary oil aid comprises anantioxidant, a corrosion inhibitor, a detergent dispersant and a cosolvent, has good corrosion resistance, can be adsorbed on the inner surface of an engine so as to prevent the corrosive components in an oil product from corroding the engine, protect the engine and prolong the service life of the engine, and has good oxidation resistance. According to the invention, by combining the primary oil aid, isopentane, isohexane, isooctane, alkylated gasoline, methyl tert-butyl ether, raffinate oil and toluene to obtain primary oil, the primary oil aid can react with the unstable free radicals in theprimary oil to terminate the chain reaction in the fuel oxidation process and eliminate the free radicals, so that the primary oil is in a stable state, the storage time of the engine and the oil product is prolonged, and the good cold starting performance, the combustion performance and the power performance are achieved; and after the primary oil is combusted, the combustion efficiency of the engine is high, the oil consumption is low, and the tail gas emission is little.

Description

technical field [0001] The invention belongs to the field of petrochemical technology, and in particular relates to a primary oil additive, primary oil and a preparation method thereof. Background technique [0002] The initial oil is the first barrel of fuel oil for the engine. After the new car is off the assembly line, a certain amount of fuel oil needs to be added. In order to better match the engine demand and improve fuel utilization efficiency, the initial oil needs to have better cold start performance and combustion performance. , power performance, so it is necessary for the initial oil to have good adaptability to the engine; at the same time, due to the particularity of the initial oil use conditions and the uncertainty of the service cycle, the anti-rust performance and stability of the initial oil are also particularly important, and This performance is difficult to improve through simple component adjustment, so it is necessary to add certain additives to impr...

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Problems solved by technology

[0003] Patent CN 105419887 A invented a primary oil, which is composed of isooctane, benzene raffinate, methyl tert-butyl ether, isopentane, stable light hydrocarbons, and antistatic agent. Although it meets the indicators of saturated vapor pressure, distillation range, and copper sheet corrosion, it lacks corresponding countermeasures for steel corrosion, potential colloids, etc. that affect the product's corrosion resistance and oxidation resistance to the engine; , the storage time is affected by the sales situation, and the storage time may be longer. At the same time, there are large differences in vehicle sales regions, resulting in huge temperature differences. Therefore, there are stricter requirements on the stability, oxidation resistance and rust resistance of the initial oil. Require

Steel corrosion is one of the evaluation indicators of rust resistance, and latent colloid is one of the evaluation indicators of stability and oxidation resistance. However, in the prior art, there is no corresponding solution for these important influencing factors. The provided It is difficult for the initial oil to meet the requirements of the above factors, resulting in uneven quality of the initial oil, which in turn leads to a series of problems such as a decrease in the efficiency of the automobile engine. The severity of the above problems has not been realized in the prior art, so there is an urgent need A kind of primary oil that can fill the gap in the existing technology to meet the engine's demand for primary oil

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