System for concentrating NMP (N-Methyl Pyrrolidone) waste liquid heavy components

The utility model discloses a system for concentrating heavy components in NMP (N-Methyl Pyrrolidone) waste liquid. According to the characteristics of heavy components in the NMP waste liquid, the heavy components generated by the NMP waste liquid recovery device are further concentrated, the yield...

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Bibliographic Details
Main Authors WEI CHUANLIN, LI SHUANG, ZHAO WEI
Format Patent
LanguageChinese
English
Published 06.05.2022
Subjects
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:The utility model discloses a system for concentrating heavy components in NMP (N-Methyl Pyrrolidone) waste liquid. According to the characteristics of heavy components in the NMP waste liquid, the heavy components generated by the NMP waste liquid recovery device are further concentrated, the yield of hazardous wastes is reduced, and an NMP solvent is recovered at the same time. And the problems of polymerization, coking, blockage, large tower pressure drop and the like of heavy components are avoided, so that the device can stably operate for a long period. 本实用新型公开了一种用于浓缩NMP废液重组分的系统。本实用新型根据NMP废液重组分的特性，对NMP废液回收装置产生的重组分进一步浓缩，降低危险废物的产量，同时回收NMP溶剂。避免了重组分的聚合、结焦、堵塞、塔压降大等问题，使装置能够长周期稳定运行。
Bibliography:Application Number: CN202123228219U