A kind of dicumyl peroxide condensation tail gas closed loop system

Abstract

The invention discloses a dicumyl peroxide condensation tail gas closed circulation system. The system includes a condensation tank, a tail gas bag, a first condenser, a second condenser, a third condenser, and a water ring vacuum pump. A top air outlet of the condensation tank is connected to an air inlet of the first condenser through a pipeline, an air outlet of the first condenser is connected to an air inlet of the water ring vacuum pump, an air outlet of the water ring vacuum pump is connected to an air inlet of the second condenser, an air outlet of the second condenser is connected to an inlet of the tail gas bag through a pipeline, an outlet of the tail gas bag is connected to a bottom emptying port of the condensation tank, a bottom outlet of the tail gas bag is connected to a condensate liquid recovery pipeline, the water ring vacuum pump is in series connection with the third condenser, a circulation water pool and a boosting water pump, and the water ring vacuum pump, the third condenser, the circulation water pool and the boosting water pump form a closed loop. The dicumyl peroxide condensation tail gas closed circulation system provided by the invention has the advantages of simple process, low energy consumption, and no secondary pollution, and can realize tail gas recycling.

Description

technical field [0001] The invention relates to a closed-circuit circulation system of dicumyl peroxide condensation tail gas. Background technique [0002] Dicumyl peroxide (DCP for short) is widely used in the chemical industry as an excellent initiator, vulcanizing agent and crosslinking agent in polymer materials such as natural rubber, synthetic rubber and polyethylene resin. At present, the industry mainly uses cumene as raw material to oxidize cumene hydroperoxide, and then reduces it with sodium sulfide to generate α,α-dimethylbenzyl alcohol, and then catalyzes hydrogen peroxide under the catalysis of perchloric acid. The condensation reaction between cumene and benzyl alcohol produces dicumyl peroxide. [0003] During the condensation reaction of cumene hydroperoxide and dimethyl benzyl alcohol, a large amount of water will be produced to prevent the forward progress of the reaction. In order to make the condensation reaction forward, certain measures need to be ta...

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Problems solved by technology

However, the treatment method of incineration consumes a lot of energy, and the process is complicated, and it will cause secondary pollution; while the liquid absorption method will produce a large amount of wastewater, and the cost of wastewater treatment is relatively high

And the recovery and utilization of exhaust gas cannot be realized in the above method, which also causes waste of raw materials to a certain extent

[0005] At present, the method of adsorption is mainly used to treat the waste gas of dicumyl peroxide. For example, the patent 201410159392.6 is a treatment method for the waste gas of dicumyl peroxide production, which discloses the method of using activated carbon adsorption to treat the waste gas of dicumyl peroxide. Although this method can recycle cumene and other substances in the waste gas to a certain extent while treating the waste gas, this method still has problems such as long process flow, large energy consumption, and complicated technology in the process of waste gas treatment.

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