WO2010050823A1 - Method and means for extracting heat from aluminium electrolysis cells - Google Patents
Method and means for extracting heat from aluminium electrolysis cells Download PDFInfo
- Publication number
- WO2010050823A1 WO2010050823A1 PCT/NO2009/000371 NO2009000371W WO2010050823A1 WO 2010050823 A1 WO2010050823 A1 WO 2010050823A1 NO 2009000371 W NO2009000371 W NO 2009000371W WO 2010050823 A1 WO2010050823 A1 WO 2010050823A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- anode
- stem
- heat
- accordance
- cooling
- Prior art date
Links
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
- C25C3/20—Automatic control or regulation of cells
-
- 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
-
- 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
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
-
- 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
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/06—Operating or servicing
Definitions
- the anode stem plays an important role in the energy balance of the cell. Approximately 50 percent of the electrical energy input to the cell is lost as heat. Up to 50 percent of the heat loss takes place at the top of the cell, and the major part of this again is through the anode.
- Increased heat losses from the stubs/yoke will also lead to increased temperature in the raw gas. There are, at least, three reasons why this is not desired; 1 ) Increased maintenance costs related to the filter bags in the dry scrubber if the temperature increases above their designed operating temperature, 2) It is important to keep the temperature of the superstructure below certain limits due to the numerous electromechanical installations in this area, and 3) There may be increased heat stress on the operators working in the vicinity of the cell. The extra heat losses must therefore be compensated by increased air suction into the cells.
- Fig. 1 discloses in general an anode assembly
- the anode stem 1 contains a longitudinal pipe 22 for the cold fluid supplied or recycled at the top, and another longitudinal pipe 23 for the hot fluid coming from the bottom of the stem or from the yoke and the bottom of the stem.
- the latter pipe is thermally insulated 24 in order to avoid heating of the cold fluid or the anode stem itself.
- the pipes can be made two in parallel as in Fig. 2a or concentric as in Fig. 2b.
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)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09823878.5A EP2350353B1 (en) | 2008-10-31 | 2009-10-26 | Method and means for extracting heat from aluminium electrolysis cells |
EA201100709A EA020514B1 (en) | 2008-10-31 | 2009-10-26 | Method and means for extracting heat from aluminium electrolysis cells |
NZ592384A NZ592384A (en) | 2008-10-31 | 2009-10-26 | Means for extracting heat from an aluminium electrolysis cell by cooling the anode stem |
CA2741168A CA2741168C (en) | 2008-10-31 | 2009-10-26 | Method and means for extracting heat from aluminium electrolysis cells |
BRPI0919993A BRPI0919993A2 (en) | 2008-10-31 | 2009-10-26 | device and method for extracting heat from an electrolysis cell for aluminum production |
AU2009310492A AU2009310492B2 (en) | 2008-10-31 | 2009-10-26 | Method and means for extracting heat from aluminium electrolysis cells |
CN200980143062.5A CN102203325B (en) | 2008-10-31 | 2009-10-26 | Method and means for extracting heat from aluminium electrolysis cells |
NO20110740A NO20110740A1 (en) | 2008-10-31 | 2011-05-19 | Method and apparatus for extracting heat from an electrolytic cell for aluminum production |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20084611 | 2008-10-31 | ||
NO20084611 | 2008-10-31 | ||
NO20084938A NO337977B1 (en) | 2008-10-31 | 2008-11-24 | Method and apparatus for extracting heat from aluminum electrolysis cells |
NO20084938 | 2008-11-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010050823A1 true WO2010050823A1 (en) | 2010-05-06 |
WO2010050823A8 WO2010050823A8 (en) | 2010-09-30 |
Family
ID=42129020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO2009/000371 WO2010050823A1 (en) | 2008-10-31 | 2009-10-26 | Method and means for extracting heat from aluminium electrolysis cells |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP2350353B1 (en) |
CN (1) | CN102203325B (en) |
AR (1) | AR074082A1 (en) |
AU (1) | AU2009310492B2 (en) |
BR (1) | BRPI0919993A2 (en) |
CA (1) | CA2741168C (en) |
EA (1) | EA020514B1 (en) |
NO (2) | NO337977B1 (en) |
NZ (1) | NZ592384A (en) |
WO (1) | WO2010050823A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103031572A (en) * | 2011-09-30 | 2013-04-10 | 湖南创元铝业有限公司 | Method for building small hearths of aluminum electrolysis cells |
US20130199938A1 (en) * | 2010-09-22 | 2013-08-08 | John Paul Salvador | System and method for control of side layer formation in an aluminium electrolysis cell |
US20140202873A1 (en) * | 2011-10-10 | 2014-07-24 | Mitsubishi Electric Corporation | System and method for control pf layer formation in an aluminum electrolysis cell |
US20140332400A1 (en) * | 2012-01-12 | 2014-11-13 | Goodtech Recovery Technology As | Aluminium electrolysis cell comprising sidewall temperature control system |
WO2019012376A1 (en) * | 2017-07-12 | 2019-01-17 | Dubai Aluminium Pjsc | Electrolysis cell for hall-héroult process, with cooling pipes for forced air cooling |
WO2019123131A1 (en) * | 2017-12-18 | 2019-06-27 | Dubai Aluminium Pjsc | Anode yoke, anode hanger and anode assembly for a hall-héroult cell |
WO2022219487A1 (en) * | 2021-04-16 | 2022-10-20 | Rio Tinto Alcan International Limited | Multi-legged structure and anode assembly |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103820817A (en) * | 2014-01-17 | 2014-05-28 | 饶云福 | Inner-cooling inert anode for electrolytic aluminum |
CN108866574B (en) * | 2018-09-05 | 2020-06-12 | 辽宁石油化工大学 | Heat exchange device for aluminum electrolytic cell |
RU2756676C1 (en) * | 2021-03-15 | 2021-10-04 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Device for cooling a self-burning anode of aluminum electrolyzer |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4737247A (en) | 1986-07-21 | 1988-04-12 | Aluminum Company Of America | Inert anode stable cathode assembly |
WO2004018737A1 (en) | 2002-08-23 | 2004-03-04 | Norsk Hydro Asa | Control of temperature and operation of inert electrodes during production of aluminium metal |
WO2004064984A1 (en) | 2002-12-18 | 2004-08-05 | Aluminium Pechiney | Electrolytic cell effluent treatment method and device for the production of aluminium |
WO2006007863A1 (en) | 2004-07-16 | 2006-01-26 | Cathingots Limited | Electrolysis apparatus with solid electrolyte electrodes |
WO2006009459A1 (en) | 2004-07-23 | 2006-01-26 | Norsk Hydro Asa | A method and equipment for heat recovery |
WO2006088375A1 (en) | 2005-02-16 | 2006-08-24 | Norsk Hydro Asa | Method and means for control of heat balance |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3071075D1 (en) * | 1980-10-27 | 1985-10-17 | Conradty Nuernberg | Electrode for igneous electrolysis |
-
2008
- 2008-11-24 NO NO20084938A patent/NO337977B1/en not_active IP Right Cessation
-
2009
- 2009-10-26 CN CN200980143062.5A patent/CN102203325B/en not_active Expired - Fee Related
- 2009-10-26 BR BRPI0919993A patent/BRPI0919993A2/en not_active IP Right Cessation
- 2009-10-26 EP EP09823878.5A patent/EP2350353B1/en not_active Not-in-force
- 2009-10-26 CA CA2741168A patent/CA2741168C/en not_active Expired - Fee Related
- 2009-10-26 NZ NZ592384A patent/NZ592384A/en not_active IP Right Cessation
- 2009-10-26 AU AU2009310492A patent/AU2009310492B2/en not_active Ceased
- 2009-10-26 WO PCT/NO2009/000371 patent/WO2010050823A1/en active Application Filing
- 2009-10-26 EA EA201100709A patent/EA020514B1/en not_active IP Right Cessation
- 2009-10-30 AR ARP090104218 patent/AR074082A1/en not_active Application Discontinuation
-
2011
- 2011-05-19 NO NO20110740A patent/NO20110740A1/en not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4737247A (en) | 1986-07-21 | 1988-04-12 | Aluminum Company Of America | Inert anode stable cathode assembly |
WO2004018737A1 (en) | 2002-08-23 | 2004-03-04 | Norsk Hydro Asa | Control of temperature and operation of inert electrodes during production of aluminium metal |
NO318164B1 (en) | 2002-08-23 | 2005-02-07 | Norsk Hydro As | Method for electrolytic production of aluminum metal from an electrolyte and use of the same. |
WO2004064984A1 (en) | 2002-12-18 | 2004-08-05 | Aluminium Pechiney | Electrolytic cell effluent treatment method and device for the production of aluminium |
WO2006007863A1 (en) | 2004-07-16 | 2006-01-26 | Cathingots Limited | Electrolysis apparatus with solid electrolyte electrodes |
WO2006009459A1 (en) | 2004-07-23 | 2006-01-26 | Norsk Hydro Asa | A method and equipment for heat recovery |
WO2006088375A1 (en) | 2005-02-16 | 2006-08-24 | Norsk Hydro Asa | Method and means for control of heat balance |
Non-Patent Citations (1)
Title |
---|
See also references of EP2350353A4 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130199938A1 (en) * | 2010-09-22 | 2013-08-08 | John Paul Salvador | System and method for control of side layer formation in an aluminium electrolysis cell |
CN103031572A (en) * | 2011-09-30 | 2013-04-10 | 湖南创元铝业有限公司 | Method for building small hearths of aluminum electrolysis cells |
US20140202873A1 (en) * | 2011-10-10 | 2014-07-24 | Mitsubishi Electric Corporation | System and method for control pf layer formation in an aluminum electrolysis cell |
US20140332400A1 (en) * | 2012-01-12 | 2014-11-13 | Goodtech Recovery Technology As | Aluminium electrolysis cell comprising sidewall temperature control system |
WO2019012376A1 (en) * | 2017-07-12 | 2019-01-17 | Dubai Aluminium Pjsc | Electrolysis cell for hall-héroult process, with cooling pipes for forced air cooling |
WO2019123131A1 (en) * | 2017-12-18 | 2019-06-27 | Dubai Aluminium Pjsc | Anode yoke, anode hanger and anode assembly for a hall-héroult cell |
WO2022219487A1 (en) * | 2021-04-16 | 2022-10-20 | Rio Tinto Alcan International Limited | Multi-legged structure and anode assembly |
Also Published As
Publication number | Publication date |
---|---|
CA2741168C (en) | 2016-08-16 |
EP2350353B1 (en) | 2016-06-29 |
CA2741168A1 (en) | 2010-05-06 |
EA201100709A1 (en) | 2011-12-30 |
CN102203325B (en) | 2015-04-08 |
CN102203325A (en) | 2011-09-28 |
AU2009310492B2 (en) | 2015-10-08 |
WO2010050823A8 (en) | 2010-09-30 |
EA020514B1 (en) | 2014-11-28 |
AR074082A1 (en) | 2010-12-22 |
NO337977B1 (en) | 2016-07-18 |
EP2350353A1 (en) | 2011-08-03 |
EP2350353A4 (en) | 2012-08-08 |
NO20110740A1 (en) | 2011-05-19 |
AU2009310492A1 (en) | 2010-05-06 |
BRPI0919993A2 (en) | 2015-12-15 |
NZ592384A (en) | 2013-06-28 |
NO20084938L (en) | 2010-05-03 |
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