Novel benzene distillation system in production of caprolactam and production method

The invention discloses a novel benzene distillation system in production of caprolactam and a benzene distillation method. The novel benzene distillation system comprises a first-effect benzene distillation device, a second-effect benzene distillation device and a third-effect benzene distillation...

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Bibliographic Details
Main Author SONG XINHONG
Format Patent
LanguageChinese
English
Published 25.09.2018
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:The invention discloses a novel benzene distillation system in production of caprolactam and a benzene distillation method. The novel benzene distillation system comprises a first-effect benzene distillation device, a second-effect benzene distillation device and a third-effect benzene distillation device, wherein an efficient benzene distiller in the first-effect benzene distillation device is composed of a first-effect benzene distillation tower, a residual heat recycling heater and a first-effect benzene distillation heater; the multi-effect benzene distillation devices are combined to forma multi-effect benzene distillation system for continuously producing; the multi-effect benzene distillation system can be continuously and stably operated and the quality of a product is effectivelyimproved; the novel benzene distillation system in the production of the caprolactam, disclosed by the invention, adopts a three-effect benzene distillation production technology, so that the heat ofsteam of the three-effect
Bibliography:Application Number: CN20181554776