Q1: Cov ntsiab cai tseem ceeb ntawm lub Hall - héroult txheej txheem rau thawj txhuas ntau lawm
Alumina Desololves nyob rau hauv Molten Cryolite (Na-asalf₆) ntawm 950 Qib los ua cov qauv tsim qauv hauv tib neeg. Cov tshuaj carbon anodes oxidize thaum hluav taws xob electrolysis, tso kev sib txuas thaum siv 0.4 kg C / Kg al. Ncaj nraim tam sim no (4-6 V, 300 txog) txo cov kua txhuas kom ua kua txhuas ntawm cathodes. Perfluorocarbon (PFC) daim ntawv hauv lub sijhawm Anode Cov Nyiaj Sib Txawv, xav tau hluav taws xob tswj hauv qab 1.7 v. Niaj hnub nimno ua tiav kev ua tau zoo los ntawm kev ua haujlwm sib nqus.
Q2: Cov thev naus laus zis innovations hauv Anode tsim rau emission txo
Inert anotypes siv kev sib koom tes Nifeoon tshem tawm cov kev ua haujlwm sib cais. Composite anodes nrog kev txhawb nqa cov hmoov av nyias nyias muaj plua plav los ntawm 25%. Khoos phib tawj muaj kev faib tawm cov tshuab xa tawm tam sim no tsawg dua PFC tiam. Them cov søderberg anodes yuav ntes cov pa roj fluoride rau kev rov ua dua tshiab. Oxygen -} evolving anodes theoretically qis zog tau siv los ntawm 30%.
Q3: Cov tswv yim tswj hluav taws xob hauv lub zog hauv cov hlwb txo nyiaj
Point - Pub Alumina Faib Tiv Thaiv Kev Tiv Thaiv Sludge tsim thiab voltopage hloov pauv. Paub meej Busbar tsim kev sib nqus cov liaj teb kom tswj cov ntaub ntawv hlau ruaj ruaj. Digital ntxaib Simcome Ua Kom Zoo Potline Amperage ntawm 300-600 Ka. Khib dej sov pib kho tshuab khaws tau 40% ntawm smelter thermal zog. Txuas txuas dua lub zog tseem ceeb tam sim no Powers 80% ntawm Icelandic smelters.
Q4: Ib puag ncig tswj cov tshuab rau fluoride emissation
Qhuav cov twj paj nruag ntes hf roj siv alumina adsorption nrog 99.7% efficiency. Roos kev dim pa tshuab tswj cov kev tsis zoo hauv cov potutions muaj cov pa tawm. Nruam fluoride soj ntsuam lasers ntes xau ntawm 0.1 kg f / tuj al thresholds. Siv potlining (SPL) intergoes thermal kev kho kom rov ua kom rov zoo fluorides thiab rhuav tshem Cyanide. Cov tshuab ntub dej kaw lus kho cov pa tawm theem nrab thaum lub sijhawm ua hauj lwm.
Q5: Txoj kev yav tom ntej rau Decarbonizing Aluminium Blapting ua haujlwm
Inert Technology cog lus tias xoom ncaj qha emissions thaum ua lag luam. Ntsug electrode hlwb txo cov zog siv los ntawm 25% los ntawm txoj kev luv luv tam sim no. Membrane - based electrolysis ua haujlwm ntawm 700℃nrog projected 30% lub zog txuag nyiaj. Cov pa roj carbon ntes cov tshuab ua kom zoo sib xws los ntawm kev tso pa ntws mus rau mineralization. Ntxiv rau hydrogen yuav hloov cov quav tshuaj carbon hauv kev sim cov txheej txheem txiav tawm.
