A METHOD AND AN APPARATUS FOR SEPARATING CHLORINE GAS FROM A GASEOUS ANODE OUTLET STREAM OF AN ELECTROCHEMICAL REACTOR

WIPO Patent Application WO/2019/105955

A3

The invention relates to a method for separating chlorine from a gaseous anode out- let stream mass flow of an electrochemical cell reactor. In a first aspect, the method makes use of an absorption step, wherein an anode outlet stream mass flow of the electrochemical cell reactor is exposed to an organic solvent being essentially immiscible with water for achieving an exergy-efficient separation of chlorine and hydrogen chloride. In a further aspect, the method makes use of absorption step, wherein the anode outlet stream mass flow is exposed to an ionic liquid, wherein the hydrogen chloride is dissolved in said ionic liquid, thereby forming a gas flow containing essentially chlorine and a solution mass flow comprising the ionic liquid and the hydrogen chloride. The hydrogen chloride is desorbed from the solution mass flow in a desorption step. In another aspect, the method makes use of a distillation step, wherein the anode outlet stream mass flow is separated at a static pressure of at least 2 bar for an exergy-efficient separation.

BECHTEL SIMON (DE)
VIDAKOVIC-KOCH TANJA (DE)
SUNDMACHER KAI (DE)

PCT/EP2018/082752

July 11, 2019

November 28, 2018

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MAX PLANCK GESELLSCHAFT (DE)

B01D53/14; B01D53/00; C01B7/07; C25B1/26; C25B15/08

EP0767138A1	1997-04-09
CA2579364A1	2008-08-20
US2398891A	1946-04-23
US6063162A	2000-05-16
EP2599770A1	2013-06-05
JP3193627B2	2001-07-30
DE102006023581A1	2007-11-22
US5580437A	1996-12-03

GRAMM, LINS & PARTNER PATENT- UND RECHTSANWÄLTE PARTGMBB (DE)

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