A kind of demulsifier for marui oil and its synthetic method

Abstract

The invention relates to a demulsifier for Marui oil and a synthesis method thereof, which solves the problem of the poor quality and difficult handling of Marui oil in the prior art, the poor demulsification effect of the existing demulsifier, and the demulsification of crude oil after demulsification. Technical problem with high salt content. The invention provides a demulsifier for marui oil, which is polymerized by heating allyl alcohol and acrylamide under the action of an initiator to obtain a block copolymer demulsifier; meanwhile, it also provides a synthesis method thereof. The invention is widely used in the technical field of crude oil processing.

Description

A kind of demulsifier for Marui oil and its synthesis method technical field The invention belongs to the technical field of crude oil processing, particularly a kind of demulsifier for Marui oil and synthesis method thereof Law. Background technique [0002] In recent years, the world's oil refining capacity has continued to grow, and the operating conditions are generally good. China's refining capacity returns to growth, The industry is running smoothly on the whole. The transformation and upgrading of the domestic oil refining industry has been accelerated, and the local refinery has accelerated its rise by taking the opportunity of obtaining the "dual rights". The growth rate of China's refining capacity has accelerated and will exceed 1 billion tons per year. With the oversupply of the refining industry, the price of refined oil keeps fluctuating, and crude oil Prices are constantly fluctuating, and the economic benefits of some local refineries are affected. ...

AI Technical Summary

Problems solved by technology

The quality of imported crude oil is uneven. Most of them have high sulfur content, high acid value, high density, and many impurities. After passing through the electric desalting device, the crude oil desalination rate is low

[0003] Among these imported crude oils, the quality of Marui oil is slightly inferior. It has high viscosity and high density, and contains a large amount of long-chain alkanes. , Marui oil is difficult to handle, which puts forward high requirements for existing demulsifiers

[0004] The existing demulsifiers include block polyether, phenolic resin and other types, as well as oil-soluble and water-soluble. They have a better demulsification effect on crude oil emulsions, but for crude oil containing more impurities, such as Marui oil, the demulsification effect is poor. The effect of emulsion desalting is not very good, and the crude oil still contains a lot of salt after the emulsion is broken, which affects the use of subsequent catalysts

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