Rectification-molecular sieve membrane coupling process and device for ternary water-containing eutectic system separation

Abstract

The invention relates to a rectification-molecular sieve membrane coupling process and a rectification-molecular sieve membrane coupling device for separation of a ternary water-containing eutectic system, and discloses a novel separation device for direct coupling of a rectifying tower and a membrane component. The novel separation device comprises a tower internal component and a membrane permeation unit internal component contained in a conventional rectifying tower. For ternary water-containing system separation, a molecular sieve membrane steam permeation device and a rectifying tower areingeniously combined into a whole, separation of a ternary azeotropic system through a single rectifying tower of a simple structure is achieved, and the separation efficiency is obviously improved.

Description

technical field [0001] The invention relates to the field of rectification technology and related membrane separation equipment, in particular to a ternary system rectification-membrane separation coupling technology device and an operating method thereof. Background technique [0002] With the development of the economy, the demand for energy has been increasing at an accelerated rate, but the simplification of fuel supply has seriously hindered the healthy development of society. Therefore, exploring the diversification of energy supply has become an important part of maintaining energy security, and governments of various countries are also competing to invest a lot Funds are used to develop new technologies such as nuclear energy, hydrogen energy, wind energy, solar energy, and advanced battery materials; on the other hand, due to the backwardness of green environmental protection technology, huge production waste and environmental pollution have been caused. For example...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a ternary system rectification-molecular sieve membrane coupling device and its operation method, so that the device can be widely applied to the separation of ternary azeotropic systems, not only solving the problem of traditional rectification process The difficult problem of azeotropic system separation, and the low processing capacity of the membrane separation process, which leads to the limitation of the practical application system

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