Title:
METHOD AND DEVICE FOR PREPARING CHLORINE GAS BY MEANS OF PHOTOCATALYTIC OXIDATION OF ANTHRAQUINONE
Document Type and Number:
WIPO Patent Application WO/2023/092618
Kind Code:
A1
Abstract:
A method and device for preparing chlorine gas by means of photocatalytic oxidation of an anthraquinone, belonging to the technical field of photocatalysts, and aiming to solve the problems of existing chlorine gas production processes being complex and having high energy consumption. The method for preparing chlorine gas by means of photocatalytic oxidation of an anthraquinone comprises adding an anthraquinone having a sulfonic acid group into an NaCl solution, adjusting the system to be acidic to obtain a photocatalytic reaction solution, irradiating the photocatalytic reaction solution by using a visible light source, and performing a photocatalytic reaction to obtain chlorine gas. The invention also relates to a device for preparing chlorine gas by means of photocatalytic oxidation of an anthraquinone. The device comprises an aeration system, a reactor (11) and a chlorine gas collector (12), wherein the reactor (11) is filled with a photocatalytic reaction solution, and a light source (9) is arranged in the reactor (11). The method for producing chlorine gas by means of photocatalysis is environmentally friendly and energy-saving. In a photocatalysis reactor, under the irradiation of visible light, an anthraquinone having a sulfonic acid group in a high-concentration sodium chloride aqueous solution can oxidize chloride ions, and chlorine gas is produced under an acidic condition.
Inventors:
ZHENG HANGWEI (CN)
DING JIE (CN)
ZHAO YAN (CN)
YANG SHANSHAN (CN)
WU RUI (CN)
GAO XINLEI (CN)
ZHAO SHUANGYANG (CN)
CHEN CHENGXIN (CN)
DING JIE (CN)
ZHAO YAN (CN)
YANG SHANSHAN (CN)
WU RUI (CN)
GAO XINLEI (CN)
ZHAO SHUANGYANG (CN)
CHEN CHENGXIN (CN)
Application Number:
PCT/CN2021/134695
Publication Date:
June 01, 2023
Filing Date:
December 01, 2021
Export Citation:
Assignee:
NATIONAL ENGINEERING RES CENTER OF URBAN WATER RESOURCE (CN)
HARBIN INST TECHNOLOGY (CN)
HARBIN INST TECHNOLOGY (CN)
International Classes:
C01B7/03; B01J19/24
Foreign References:
| CN113683056A | 2021-11-23 | |||
| CN201962162U | 2011-09-07 | |||
| CN113413913A | 2021-09-21 | |||
| CN110872716A | 2020-03-10 | |||
| CN110803684A | 2020-02-18 | |||
| CN109603906A | 2019-04-12 | |||
| US20190210875A1 | 2019-07-11 |
Other References:
BRIGANTE MARCELLO; MINELLA MARCO; MAILHOT GILLES; MAURINO VALTER; MINERO CLAUDIO; VIONE DAVIDE: "Formation and reactivity of the dichloride radical (Cl2-) in surface waters: A modelling approach", CHEMOSPHERE, PERGAMON PRESS, OXFORD., GB, vol. 95, 26 October 2013 (2013-10-26), GB , pages 464 - 469, XP028775151, ISSN: 0045-6535, DOI: 10.1016/j.chemosphere.2013.09.098
Attorney, Agent or Firm:
HARBIN SONGHUAJIANG PATENT TRADEMARK OFFICE (CN)
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