Title:
SYSTEM FOR RECOVERING ARGON FROM SINGLE CRYSTAL FURNACE
Document Type and Number:
WIPO Patent Application WO/2023/241231
Kind Code:
A1
Abstract:
Provided is a system for recovering argon during monocrystalline silicon production. The system comprises: an oxygen supply unit, a dust removal and oil removal filtration unit, a catalytic decarburization unit, a catalytic hydrogenation oxygen removal unit, and a rectification unit. A gas outlet of the dust removal and oil removal filtration unit and an oxygen outlet of the oxygen supply unit are each independently communicated with a gas inlet of the catalytic decarburization unit; a gas outlet of the catalytic decarburization unit is communicated with an inlet for a gas to be treated of the catalytic hydrogenation oxygen removal unit; an outlet of the gas to be treated of the catalytic hydrogenation oxygen removal unit is communicated with an inlet of the rectification unit; a waste argon discharge outlet of the rectification unit is communicated with the gas inlet of the catalytic decarburization unit. The system has a high argon recovery rate, and the purity of argon is high.
Inventors:
MA YONGFEI (CN)
CHENG WANWEI (CN)
ZHANG LIXIN (CN)
SHI WANGXI (CN)
SHI YANJING (CN)
HE JIXIANG (CN)
CHENG WANWEI (CN)
ZHANG LIXIN (CN)
SHI WANGXI (CN)
SHI YANJING (CN)
HE JIXIANG (CN)
Application Number:
PCT/CN2023/090732
Publication Date:
December 21, 2023
Filing Date:
April 26, 2023
Export Citation:
Assignee:
YINCHUAN LONGI PHOTOVOLTAIC TECH CO LTD (CN)
International Classes:
C01B23/00; B01D46/24; B01D46/62; B01D46/71; B01D46/72; B01D53/04; F23G7/07
Foreign References:
| CN217868143U | 2022-11-22 | |||
| CN105939961A | 2016-09-14 | |||
| CN212299665U | 2021-01-05 | |||
| CN102583281A | 2012-07-18 | |||
| CN103373716A | 2013-10-30 | |||
| CN113277488A | 2021-08-20 | |||
| JPH11228116A | 1999-08-24 | |||
| US20040052708A1 | 2004-03-18 |
Attorney, Agent or Firm:
BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
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