Addictive for greatly improving gasoline octane number and preparation method thereof

Abstract

The invention relates to an addictive for greatly improving gasoline octane number and a preparation method thereof. The addictive is prepared by mixing a metal lead-out agent, a detergent, a lipid octane number accelerating agent and a gasoline antiknock addictive MMT under a certain condition. The addictive for greatly improving the gasoline octane number can greatly improve the research octane number (RON) by 3-10 units, has the efficiencies of cleaning, saving energy, supporting combustion and lubricating, can effectively reduce the emission amount of harmful gases such as NOx, CO, HC and the like in automobile exhaust, remarkably improve a three-way catalytic converter of the automobile, has the functions of preventing an automobile engine from being damaged caused by metal deposition and excessively-high gasoline vapor pressure and can remarkably strengthen the protection on the engine. Compared with the traditional iron-based, manganese-based and ether octane-enhancing additive, the addictive improves the gasoline octane number by 3-10 with high improving amplitude of the gasoline octane number and has remarkable economic benefit.

Description

Technical field: [0001] The present invention relates to an additive for petrochemical products and its preparation, especially an additive for greatly increasing the octane number of gasoline and its preparation method Background technique: [0002] Gasoline engine knocking is largely related to the nature of the fuel. If gasoline is easy to oxidize, the peroxide formed is not easy to decompose, and the spontaneous ignition point is low, then knocking is prone to occur. With the rapid development of the economy, there is a higher demand for unleaded high-octane gasoline, especially the most urgent demand for 97# gasoline. At present, the methods to increase the gasoline octane number of gasoline are roughly as follows: 1. Improvement of equipment process, such as two-stage riser, reforming and other methods, deep processing of gasoline with low octane number, which can produce gasoline with RON as high as 95#; This method is closely related to the petroleum refining proces...

AI Technical Summary

Problems solved by technology

At present, the methods to increase the gasoline octane number of gasoline are roughly as follows: 1. Improvement of equipment process, such as two-stage riser, reforming and other methods, deep processing of gasoline with low octane number, which can produce gasoline with RON as high as 95#; This method is closely related to the petroleum refining process, but it has the disadvantages of complex process, large investment, high production cost, and cannot meet the production of 97# gasoline; 2. The octane number of gasoline is increased by adding gasoline anti-riot agent. The conventional additive is: MMT , CMT, NMT and other Mn gasoline anti-riot agents, which have the advantage of low additive cost, but at the same time have the highest increase of RON2-2.8 units, which cannot meet the shortcomings of most refineries producing high-grade gasoline; The alkane component increases the octane number of gasoline, such as blending MTBE, TAME, etc., which can effectively increase the octane number of gasoline, but it has the disadvantages of high cost, the maximum addition amount is 15%, and the increase range is about 3 units of RON