EA202192477A1 - DEVICE FOR COLLECTING HOT GAS FROM ELECTROLYSIS PROCESS AND METHOD OF SUCH GAS COLLECTION - Google Patents

DEVICE FOR COLLECTING HOT GAS FROM ELECTROLYSIS PROCESS AND METHOD OF SUCH GAS COLLECTION

Info

Publication number
EA202192477A1
EA202192477A1 EA202192477A EA202192477A EA202192477A1 EA 202192477 A1 EA202192477 A1 EA 202192477A1 EA 202192477 A EA202192477 A EA 202192477A EA 202192477 A EA202192477 A EA 202192477A EA 202192477 A1 EA202192477 A1 EA 202192477A1
Authority
EA
Eurasian Patent Office
Prior art keywords
gas
cell
channel
dps
suction
Prior art date
Application number
EA202192477A
Other languages
Russian (ru)
Inventor
Аре Дюрёю
Мортен Карлсен
Эйрик Мангер
Мартин Зегац
Эльмар Ведерсхофен
Original Assignee
Норск Хюдро Аса
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Норск Хюдро Аса filed Critical Норск Хюдро Аса
Publication of EA202192477A1 publication Critical patent/EA202192477A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/22—Collecting emitted gases
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/14—Devices for feeding or crust breaking

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

Двухканальная система сбора газа для сбора горячего газа в процессе электролиза, производящего алюминий, в ячейке типа Холла-Эру, содержащей каналы (20, 30) всасывания с обработкой электролитической ванны (PTS) с дымовыми трубами (25, 35), имеющими отверстия (25', 35') для сбора газа из внутренней части газового кожуха ячейки. Каналы (20, 30) PTS расположены в надстройке ячейки за пределами упомянутого газового кожуха ячейки. Внутри газового кожуха ячейки, который может быть термически изолирован, расположен канал (10) системы распределенного всасывания электролитической ванны (DPS), который проходит вдоль расположения кожуха, при этом канал (10) обеспечивается по меньшей мере одним колпаком (11) для сбора газа. Изобретение также относится к способу для двухканального сбора горячих газов от процесса электролиза, производящего алюминий в ячейке типа Холла-Эру, где газ собирается с помощью множества колпаков (11, 12, 13, 14, 15, 16) для сбора газа, расположенных в общем канале (10) системы распределенного всасывания электролитической ванны (DPS), при этом канал изменен таким образом, что скорость всасывания является, по существу, одинаковой на каждом из колпаков вдоль канала. В соответствии с изобретением из ячейки может выделяться дымовой газ с более концентрированным содержанием углекислого газа CO2 по сравнению с тем, что сегодня является стандартной процедурой в алюминиевой промышленности, с помощью системы распределенного всасывания электролитической ванны (DPS). В одном варианте осуществления изобретения колпак системы DPS может быть интегрированным со стержнем (4) пробойника корки, а питатель для подачи сырьевого материала интегрируется с ячейкой.Two-channel gas collection system for collecting hot gas from an aluminum producing electrolysis process in a Hall-Héroult type cell containing suction channels (20, 30) with electrolysis bath treatment (PTS) with flue pipes (25, 35) having openings (25 ', 35') to collect gas from the inside of the cell's gas jacket. The channels (20, 30) of the PTS are located in the superstructure of the cell outside of said gas jacket of the cell. Inside the gas casing of the cell, which can be thermally insulated, there is a channel (10) of the electrolytic cell distributed suction system (DPS), which runs along the location of the casing, while the channel (10) is provided by at least one cap (11) for collecting gas. The invention also relates to a method for two-channel collection of hot gases from an electrolysis process producing aluminum in a Hall-Héroult cell, where the gas is collected by means of a plurality of gas collection hoods (11, 12, 13, 14, 15, 16) arranged in common channel (10) of a distributed electrolytic cell suction system (DPS), wherein the channel is changed in such a way that the suction rate is essentially the same on each of the caps along the channel. In accordance with the invention, a flue gas with a more concentrated CO2 carbon dioxide content compared to what is today standard procedure in the aluminum industry can be emitted from the cell by means of an electrolytic cell distributed suction system (DPS). In one embodiment of the invention, the hood of the DPS system can be integrated with the core (4) of the crust breaker, and the feeder for feeding the raw material is integrated with the cell.

EA202192477A 2019-03-14 2020-03-10 DEVICE FOR COLLECTING HOT GAS FROM ELECTROLYSIS PROCESS AND METHOD OF SUCH GAS COLLECTION EA202192477A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20190343A NO20190343A1 (en) 2019-03-14 2019-03-14 Arrangement for collection of hot gas from an electrolysis process, and a method for such gas collection
PCT/EP2020/056280 WO2020182776A1 (en) 2019-03-14 2020-03-10 Arrangement for collection of hot gas from an electrolysis process, and a method for such gas collection

Publications (1)

Publication Number Publication Date
EA202192477A1 true EA202192477A1 (en) 2021-12-07

Family

ID=69804880

Family Applications (1)

Application Number Title Priority Date Filing Date
EA202192477A EA202192477A1 (en) 2019-03-14 2020-03-10 DEVICE FOR COLLECTING HOT GAS FROM ELECTROLYSIS PROCESS AND METHOD OF SUCH GAS COLLECTION

Country Status (8)

Country Link
EP (1) EP3938564B1 (en)
AU (1) AU2020233972A1 (en)
BR (1) BR112021015866A2 (en)
CA (1) CA3133373A1 (en)
EA (1) EA202192477A1 (en)
NO (1) NO20190343A1 (en)
WO (1) WO2020182776A1 (en)
ZA (1) ZA202105691B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113789549A (en) * 2021-09-28 2021-12-14 中南大学 Flue gas treatment system based on fully-closed aluminum electrolytic cell

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4033846A (en) * 1975-09-16 1977-07-05 Lista Og Mosjoen Aluminiumverk, Elkem Aluminum A/S & Co. Apparatus for gas collection in aluminum smelting furnaces
IT1196487B (en) 1986-07-15 1988-11-16 Techmo Car Spa PROCEDURE FOR DEPURING GASES EMITTED BY ELECTROLYSIS OVENS FOR THE PRODUCTION OF ALUMINUM AND RELATED EQUIPMENT
US5814127A (en) 1996-12-23 1998-09-29 American Air Liquide Inc. Process for recovering CF4 and C2 F6 from a gas
NO20043150D0 (en) 2004-07-23 2004-07-23 Ntnu Technology Transfer As "Heat recovery method and equipment"
ATE498713T1 (en) * 2006-04-11 2011-03-15 Pechiney Aluminium DEVICE AND METHOD FOR COLLECTING THE OUTFLOW OF AN ELECTROLYSIS CELL
RU2316620C1 (en) * 2006-04-18 2008-02-10 Общество с ограниченной ответственностью "Русская инжиниринговая компания" Apparatus for collecting and removing gases from aluminum cell
NO332375B1 (en) * 2008-09-19 2012-09-10 Norsk Hydro As Spot feeder with integrated exhaust collection as well as a method for exhaust collection
FR2946666B1 (en) * 2009-06-10 2015-08-07 Solios Environnement SYSTEM AND METHOD FOR ENERGY RECOVERY
CN102312253A (en) * 2010-06-29 2012-01-11 沈阳铝镁设计研究院有限公司 Double-flue pipe gas-collecting pipeline system of aluminum electrolytic tank and control method
CN102776531A (en) * 2011-05-09 2012-11-14 贵阳铝镁设计研究院有限公司 Burner gas collection apparatus of aluminum electrolysis cell
RU2668617C1 (en) * 2017-11-20 2018-10-02 Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" Device for collection and removal of gases in aluminium electrolysis cell
CN110042432B (en) * 2019-05-05 2020-06-05 中南大学 Closed gas collecting device for aluminum electrolytic cell

Also Published As

Publication number Publication date
CA3133373A1 (en) 2020-09-17
NZ778775A (en) 2023-12-22
WO2020182776A1 (en) 2020-09-17
ZA202105691B (en) 2022-08-31
EP3938564A1 (en) 2022-01-19
EP3938564B1 (en) 2023-04-26
AU2020233972A1 (en) 2021-08-26
NO20190343A1 (en) 2020-09-15
BR112021015866A2 (en) 2021-10-05

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