Recovering and treating device for butanol-octanol condensation maintenance waste liquor and treating technology

Abstract

The invention provides a recovering and treating device for butanol-octanol condensation maintenance waste liquor and a treating technology and belongs to the field of octanol production equipment. The recovering and treating device comprises a condensation reaction loop formed by two condensation reactors, mechanical seals (1), four circulating pumps, a feeding pipeline (9) and a discharging pipeline (4). The condensation reactors and the mechanical seals (1) form a series loop with one circulating pump. The recovering and treating device is characterized in that a waste liquor collecting and treating device is additionally arranged under a horizontal plane where the four circulating pumps are located and used for collecting the waste liquor in a centralized mode, separating organic phases and water phases and recovering the organic phases and the water phases individually. A sealed waste liquor collecting tank and an alkali-containing waste water storage tank are adopted for recovering and treating the waste liquor, peculiar smell sources of sites are eradicated thoroughly, pollution to the environment from peculiar smells is avoided, different ingredients are separated and recovered, octenal capable of generating into octanol is recovered, economic benefits are increased, and sewage can reach the external conveying qualified index.

Description

technical field [0001] The invention discloses a recovery treatment device and a treatment process for butanol condensation maintenance waste liquid, belonging to the field of octanol production equipment. Background technique [0002] For the octanol production unit, the pump outlet and inlet valves need to be isolated before each pump is replaced and repaired. Because the isolated materials contain aldehydes and alkalis and have a high temperature, if they are directly discharged into the grease trap containing aldehydes, there will be Condensation reaction occurs, accompanied by a large amount of heat release, which is prone to danger. In addition, when the condensation system is shut down for maintenance, the current treatment method for these waste liquids is to directly discharge them into the sewage collection tank of the butanol device through the discharge line of the pump body. However, due to the alkali content and high temperature of this part of the isolated ma...

AI Technical Summary

Problems solved by technology

However, due to the alkali content and high temperature of this part of the isolated material, the high COD and high pH of the waste liquid cannot be directly sent to the sewage treatment plant for treatment. It can only be diluted with fresh water in the sewage collection tank and then slowly sent to the sewage treatment plant. To the sewage treatment plant to avoid flooding the sewage system

[0003] This treatment method has great disadvantages: because the sewage collection tank is in a semi-closed state, the on-site odor is serious and the environment is seriously polluted; it needs to be diluted with fresh water in the sewage collection tank, wasting a lot of fresh water; due to high COD and high PH It has an impact on sewage treatment, so it can only be sent out slowly, which increases the time of sewage treatment; octenal in waste liquid is wasted with sewage treatment, and the cost of sewage treatment is high

Therefore, this processing method in the prior art is not only time-consuming and labor-intensive, causes serious pollution, but also consumes a large amount of processing costs.

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