Method for separation of components and separation unit

A separation method and separation device technology, applied in the separation method, semi-permeable membrane separation, dispersed particle separation, etc., can solve the problems of unstable separation of components, poor acid resistance, etc., and achieve the effect of inhibiting capillary condensation and long-term stable component separation
CN101035609AInactive Publication Date: 2007-09-12MITSUBISHI CHEM CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MITSUBISHI CHEM CORP
Publication Date
2007-09-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

To provide a method for separating component, wherein a part of components is separated from a mixed composition which includes water and acid, without causing degression in the characteristics of the zeolite crystal is aimed for. The aim is solved by a method for separating a component from a mixed composition which includes water and organic acid such as acetic acid by using zeolite crystal, and wherein the mixed composition is brought into vapor 16; and the vapor 16 of the mixed composition is heated by a ribbon heater 13 up to a temperature of not inducing capillary condensation of the vapor 16 of the mixed composition when the vapor 16 of the mixed composition comes into contact with the zeolite crystal 11.A method for the separation of components by which an acid component can partially be separated from a mixture comprising the acid component and water without deteriorating the properties of crystalline zeolite. Namely, a method for separating partially an organic acid component (such as acetic acid) from a mixture comprising the acid component and water by using crystalline zeolite, wherein when a vapor (16) of the mixture is brought into contact with crystalline zeolite (11), the vapor (16) is heated with a ribbon heater (13) to such a temperature as to inhibit the vapor (16) from capillary condensation.
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Description

technical field

[0001] The present invention relates to a component separation method and a component separation device for separating components from a component system containing at least water and organic acid components using zeolite crystallization. technical background

[0002] Zeolite is a crystalline substance having a tetrahedron-connected skeleton structure in which four oxygens are coordinated to cations, and has micropores of Angstrom order.

[0003] At present, a method of separating one component from a mixture of two or more components by using the selective adsorption energy of the micropores of zeolite crystals and the molecular sieve energy has been extensively studied.

[0004] As such a separation method, there is a molecular sieve method (for example, refer to Patent Document 1) in which a zeolite crystal powder is used to perform a separation operation using a method called pressure swing adsorption (pressure swing adsorption), or a zeolite crystal memb...

Claims

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