Azeotrope separation coupling process and device

Abstract

The invention discloses an azeotrope separation coupling process and device. The device comprises a supercritical fluid preparation part, an azeotropic mixture separation part and a sampling part. The supercritical fluid preparation part for preparing a supercritical fluid and introducing the supercritical fluid into the azeotropic mixture separation part; the sampling part is used for collecting and sampling the separated sample in the azeotropic mixture separation part; the azeotropic mixture separation part comprises a separation system and a sample injector; the separation system comprises a high-pressure separation kettle, a temperature control jacket outside the kettle and a temperature control inner kettle; the upper end and the lower end of the high-pressure separation kettle are respectively provided with a sample inlet and a sample outlet, two pipelines are arranged at the sample inlet, one pipeline is connected to the sample injector to form a sample injection channel, and the other pipeline is connected to the supercritical fluid preparation part to form a channel for supercritical fluid to flow into the high-pressure separation kettle. The device can explore the application prospect of separating the binary component azeotrope by combining the thermal diffusion effect with the supercritical fluid.

Description

technical field [0001] The invention relates to the technical field of azeotrope separation process and chemical separation equipment, in particular to an azeotrope separation coupling process and device. Background technique [0002] Mixture separation technology is an important technical means in the chemical production process. The chemical production process that has been widely used at present includes: the extraction of raw materials, the separation of intermediate products, the purification of products, and the treatment of discharged waste water and waste gas. More or less, chemical separation technology will be used; in chemical production and pharmaceutical manufacturing, binary component azeotropes are important chemical raw materials and solvents, but currently they are facing binary azeotropes in actual production and manufacturing. The problem of recovery and reuse of organic solvents in compound components, especially after some solvents form azeotropes, it is...

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Problems solved by technology

Although the separation can be achieved by thermal diffusion, the degree of separation achieved under normal circumstances is negligible

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