Inhibitor for inhibiting coking of petroleum sulfonate sulfonation reaction and application thereof

A technology of petroleum sulfonate and sulfonation reaction, applied in the preparation of sulfonate, sulfonic acid, organic chemistry, etc., can solve the problem of product stratification and reduced interfacial activity, irritating odor, and stable storage of petroleum sulfonate It can alleviate the problems such as the deterioration of the product interface, reduce the activity of the product interface, reduce the amount of coking, and prolong the continuous reaction cycle.
CN112250602AActive Publication Date: 2021-01-22CHINA UNIV OF PETROLEUM (BEIJING)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (BEIJING)
Publication Date
2021-01-22

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Abstract

The invention provides an inhibitor for inhibiting coking of a sulfonation reaction of mahogany petroleum sulfonate and application of the inhibitor. The coking inhibitor comprises an organic oxygen-containing compound with the molecular weight of 150 or below, and specifically, the organic oxygen-containing compound comprises one or more of maleic anhydride, methyl isobutyl ketone, sulfolane anddioxane. Compared with an existing sulfonation process, the coking inhibitor is added, the coking amount can be reduced by 80% or above, and reduction of the interfacial activity of a product caused by excessive coking amount can be effectively relieved; meanwhile, the continuous reaction period of the sulfonation process can be prolonged, so that the energy consumption and production efficiency reduction caused by shutdown maintenance are reduced.
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Description

technical field

[0001] The invention relates to the technical field of surfactants. More specifically, it relates to the production formula and production process of petroleum sulfonate. Background technique

[0002] Petroleum sulfonate is a kind of anionic surfactant, which is mainly used for tertiary oil recovery. It is cheap and has high interfacial activity. It is widely used in major oil fields in my country, such as Daqing Oilfield, Shengli Oilfield and Xinjiang Oilfield. Surfactants for oils.

[0003] Petroleum sulfonate is made of petroleum and its fractions as raw material oil, sulfonated by sulfonating agent, and then neutralized with alkali. Sulfonating agents include gaseous SO 3 , oleum, chlorosulfonic acid and concentrated sulfuric acid, the current production process mainly uses gaseous SO 3 It is a sulfonating agent, because of its high activity, rapid reaction, few by-products, no waste acid, and no corrosion of equipment. The sulfonation reaction device...

Claims

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