Title:
SILICON TETRACHLORIDE COLD HYDROGENATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/041699
Kind Code:
A1
Abstract:
A silicon tetrachloride cold hydrogenation system is provided. The system comprises a silicon tetrachloride evaporator, a gas mixture superheater, a gas-gas heat exchanger, a gas mixture heater and a hydrogenation reactor. The gas-gas heat exchanger has a first syngas inlet and a first syngas outlet. The hydrogenation reactor comprises a main body which has a reaction chamber, a silicon power inlet, a fourth gas mixture inlet and a second syngas outlet, the second syngas outlet being connected to the first syngas inlet. A gas distributor is arranged in the reaction chamber, is positioned between the fourth gas mixture inlet and the silicon powder inlet, and has multiple gas distribution holes. Multiple nozzles are arranged in the multiple gas distribution holes in a one-to-one manner, the outlet of each nozzle facing upwards. The system has advantages that energy consumption is low, operation cost is low, reaction conversion rate is high, the outlet of the hydrogenation reactor cannot be easily blocked, and the like.
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Inventors:
DONG LIPING (CN)
ZHANG SHENGXUE (CN)
YANG YONGLIANG (CN)
SHI TAO (CN)
YAN DAZHOU (CN)
ZHANG SHENGXUE (CN)
YANG YONGLIANG (CN)
SHI TAO (CN)
YAN DAZHOU (CN)
Application Number:
PCT/CN2021/081895
Publication Date:
March 03, 2022
Filing Date:
March 19, 2021
Export Citation:
Assignee:
CHINA ENFI ENG CORP (CN)
International Classes:
B01J8/24; C01B33/107
Domestic Patent References:
| WO2011123562A1 | 2011-10-06 |
Foreign References:
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| CN110697721A | 2020-01-17 | |||
| CN110980741A | 2020-04-10 | |||
| CN210656182U | 2020-06-02 | |||
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| US20110129402A1 | 2011-06-02 | |||
| US20070073075A1 | 2007-03-29 | |||
| US20140271380A1 | 2014-09-18 |
Other References:
LIU HUIBIN, ZHANG SHENG-XUE;YANG YONG-LIANG;YAN DA-ZHOU: "Hydrogenation Process of Silicontetrachloride on Fluidized Bed", WORLD NONFERROUS METALS, no. 8, 31 August 2015 (2015-08-31), pages 17 - 20, XP055904086, ISSN: 1002-5065
SHEN FENG, CHEN QI-GUO; PAN WEI-JIE: "Progress in research of the cold hydrogenation of silicon tetrachloride", ZHONGGUO-LÜJIAN = CHINA CHLOR-ALKALI, ZHONGGUO LÜJIAN GONGYE XIEHUI, CN, no. 9, 30 September 2019 (2019-09-30), CN , pages 18 - 21, XP055904089, ISSN: 1009-1785
SHEN FENG, CHEN QI-GUO; PAN WEI-JIE: "Progress in research of the cold hydrogenation of silicon tetrachloride", ZHONGGUO-LÜJIAN = CHINA CHLOR-ALKALI, ZHONGGUO LÜJIAN GONGYE XIEHUI, CN, no. 9, 30 September 2019 (2019-09-30), CN , pages 18 - 21, XP055904089, ISSN: 1009-1785
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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