Process for preparing organic magnesium alumen-removing agent

Abstract

An oil-soluble V-removing agent containing organomagnesium is prepared through preparing water-phase emulsion from magnesium hydroxide (or oxide), preparing oil-phase emulsion from arylhydrocarbon sulfonic acid and petronephthenic acid, adding oil phase to water liquid while stirring, clarifying, removing supernatant, adding two or more of diesel oil, dibenzene, diphenyl ether and arylhydrocarbon, heating for dewatering, ageing and adding butanone (or cyclohexanone) oxime.

Description

technical field [0001] The invention relates to a preparation method of an organic magnesium vanadium removal agent, in particular to a preparation method of an oil-soluble organic magnesium vanadium removal agent. Background technique [0002] Vanadium remover can effectively inhibit the electrochemical corrosion caused by vanadium contained in crude oil or heavy oil in fuel gas turbine or power plant boiler. The existing vanadium remover is divided into two types: oil-soluble and water-soluble. The usual method of making water-soluble vanadium removal agent is to use no harmful ions (such as Cl, SO 4 -2 , etc.), these preparations contain low magnesium content, poor dispersibility in oil, and are not easy to mix with heavy oil. When used, a separate adding system is required, which causes inconvenience in use, and the effect is also due to the inability to mix the agent oil. Average to bad. [0003] The existing vanadium removal agents are generally oil-soluble, because...

AI Technical Summary

Problems solved by technology

The usual method of making water-soluble vanadium removal agent is to use no harmful ions (such as Cl, SO 4 -2 , etc.), these preparations contain low magnesium content, poor dispersibility in oil, and are not easy to mix with heavy oil. When used, a separate adding system is required, which causes inconvenience in use, and the effect is also due to the inability to mix the agent oil. Average and poor

[0003] The existing vanadium removal agents are generally oil-soluble, because it is a highly alkaline magnesium hydroxide complex, which easily absorbs carbon dioxide and solvent volatilization in the air, resulting in gelation and surface crusting, but in recent years some studies have used This problem has been solved, such as the patent document (publication number: CN1278550A) disclosed on January 3, 2001 by the State Intellectual Property Office, which introduced the oil-soluble vanadium removal agent in the manufacturing process by adding a catalyst to improve the above phenomenon , but the added catalysts (such as polyols, amines and higher fatty acids) are so expensive that the cost increases, and it is necessary to increase the introduction of CO 2 Carbonization process, CO in this carbonization process 2 The feed rate varies with the activity of magnesium oxide, resulting in complex operation control and increased procedures

In addition as reported in the patent document (CN1055110C) disclosed by State Intellectual Property Office on May 28th, 2003: adopt the method that alkyl sulfate reacts with bicarbonate in aqueous phase, this method must adjust pH value with ammoniacal liquor, again A large amount of water is used to wash away harmful metal ions in the product, resulting in a long process route and a large amount of waste water. At the same time, the loss of solvent is also serious, which increases the cost of waste water treatment.