Method and device for producing sulfolane

Abstract

The invention discloses a method and device for producing sulfolane, and relates to a sulfolane production method and a device thereof. The invention mainly aims to solve the problems of poor effect, complex device and the like since kettle type reaction is adopted in the existing method for producing sulfolane. The method comprises the following steps: putting sulfur dioxide and polymerization inhibitor into a synthetic mixed reactor, injecting butadiene, and enabling the materials to circularly react in a synthetic static mixer, a synthetic heating and cooling unit and the synthetic mixed reactor by using a circulating pump; and diluting the sulfolene produced after reaction with benzene, adding catalyst and hydrogen, and enabling the materials to circularly react in a hydrogenation mixed reactor, a hydrogenation static mixer and a hydrogenation heating and cooling unit. The device comprises the synthetic mixed reactor, the circulating pump, the synthetic static mixer, the syntheticheating and cooling unit, the hydrogenation mixed reactor, the hydrogenation static mixer and the hydrogenation heating and cooling unit. The invention has the advantages of favorable reaction effectof materials, simple device and high safety, and the materials can be fed continuously and uniformly.

Description

Technical field: [0001] The invention relates to a production method of sulfolane and equipment used therefor. Background technique: [0002] At present, the production of sulfolane adopts a tank-type reaction process. The disadvantage is that the reaction materials are stirred in the reactor to increase the contact area of ​​the reaction materials. Because the number of revolutions of the agitator cannot be increased infinitely, the reaction effect is limited; and due to the tank-type reaction The material is put in at one time. Since the synthesis and hydrogenation of sulfolane are exothermic reactions, excessive feeding at one time will generate a large amount of heat and easily cause accidents. In order to control the temperature in the kettle, heat exchange equipment needs to be added, which makes the equipment complicated and increases Large investment; Another deficiency of the existing sulfolane preparation method is that solid catalysts are used for catalysis, the c...

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Problems solved by technology

[0002] At present, the production of sulfolane adopts a tank-type reaction process. The disadvantage is that the reaction materials are stirred in the reactor to increase the contact area of ​​the reaction materials. Because the number of revolutions of the agitator cannot be increased infinitely, the reaction effect is limited; and due to the tank-type reaction The material is put in at one time. Since the synthesis and hydrogenation of sulfolane are exothermic reactions, excessive feeding at one time will generate a large amount of heat and easily cause accidents. In order to control the temperature in the kettle, heat exchange equipment needs to be added, which makes the equipment complicated and increases Large investment; Another shortcoming of the existing sulfolane preparation method is to catalyze with a solid catalyst, the catalytic effect is not good, and the solid catalyst has by-products to generate

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