Cov teeb meem ntawm cov pa roj carbon dioxide hauv cov txheej txheem tsim cov graphite electrodes tuaj yeem daws tau tag nrho los ntawm kev sib xyaw ua ke ntawm kev txhim kho thev naus laus zis, kev ua kom zoo dua qub, thiab cov tswv yim tswj hwm lub zog, raws li tau piav qhia hauv qab no:
I. Kev Txhim Kho Txuj Ci: Cov Khoom Siv Ua Haujlwm Zoo thiab Kev Hloov Hluav Taws Xob Huv
1. Kev Siv Tshuab Graphitization Rauv
Cov cub tawg Acheson ib txwm siv hluav taws xob txog li 3,200-4,800 kWh ib tuj ntawm cov hluav taws xob graphite, nrog rau qhov kub thiab txias sib txawv ua rau muaj kev pov tseg hluav taws xob. Kev siv cov cub tawg Longitudinal Graphitization (LWG) tuaj yeem ua rau lub sijhawm ua kom sov luv dua li 9-15 teev, txo kev siv hluav taws xob los ntawm 20%-30%, thiab ua tiav kev tiv taus zoo dua. Piv txwv li, Xinjiang East Hope Carbon Project txo kev siv hluav taws xob ib tuj ntawm cov hluav taws xob los ntawm kwv yees li 300 kWh los ntawm kev siv cov cub tawg LWG, txo qis cov pa roj carbon tsis ncaj qha.
2. Kev Hloov Hluav Taws Xob Huv Si
Kev tsim ib tuj ntawm cov electrodes graphite siv li ntawm 1.7 tons ntawm cov thee txheem thiab tso tawm 4.5 tons ntawm CO₂. Kev siv hluav taws xob ntsuab (piv txwv li, lub zog hnub ci lossis cua) los tsav cov cub tawg graphitization ua rau muaj kev txo qis kev tso pa tawm ncaj qha. Piv txwv li, qee lub tuam txhab hauv Inner Mongolia tau nce qhov feem pua ntawm hluav taws xob ntsuab mus rau ntau dua 50% los ntawm "qhov chaw-grid-load-storage" kev koom ua ke, txo cov pa roj carbon ib tuj ntawm cov electrodes los ntawm 40%.
3. Cov Txheej Txheem Rov Qab Kub Pov Tseg
Kev teeb tsa cov boilers cua sov pov tseg hauv cov theem ci thiab graphitization rov qab tau cov pa roj kub siab (200-800 ° C) los tsim cov pa rau cua sov lossis tsim hluav taws xob. Lub Shanxi Taigu Baoguang Carbon Project tau ua tiav kev txuag txhua xyoo ntawm kwv yees li 2,000 tons ntawm cov thee txheem thiab txo cov pa CO₂ los ntawm 5,200 tons los ntawm kev rov qab tau cov cua sov pov tseg.
II. Kev Txhim Kho Cov Txheej Txheem: Txo Cov Khoom Siv Raw thiab Kev Siv Hluav Taws Xob
1. Kev Ua Khoom Siv Raw Zoo Ua Ntej
- Theem Calcination: Tswj cov khoom ntawm petroleum coke (qhov ceev tiag ≥ 2.07 g/cm³, resistivity ≤ 550 μΩ·m) kom txo qis kev siv zog ua haujlwm tom qab.
- Cov Txheej Txheem Impregnation: Txhim kho qhov ntom ntawm cov khoom thiab txo qhov porosity los ntawm "triple impregnation thiab quadruple baking" lossis "double impregnation thiab triple baking." Piv txwv li, kev ua tiav qhov hnyav nce ntawm ≥9% tuaj yeem txo cov voj voog ci rov ua dua thiab txuag tau 15% -20% ntawm kev siv hluav taws xob.
2. Kev Tsim Khoom Kub Qis thiab Cov Txheej Txheem Luv
Siv cov txheej txheem tsim khoom uas kub qis (piv txwv li, extrusion ntawm 90-120 ° C) los txo cov pa phem thiab txo qhov kub ntawm kev ci tom qab. Tib lub sijhawm, ua kom zoo dua cov txheej txheem tsim khoom kom luv lub voj voog ntawm cov khoom siv raw mus rau cov khoom tiav, txo qis kev siv hluav taws xob.
3. Kev Siv Cov Roj Pov Tseg Rov Qab
Cov pa roj tawm ntawm cov cub tawg uas muaj cov khoom sib xyaw xws li CO thiab H₂ tuaj yeem ntxuav thiab rov siv dua hauv cov tshuab cua sov. Qhov Xinjiang East Hope Project tau txuag kwv yees li 300,000 m³ ntawm cov roj av txhua xyoo thiab txo cov pa CO₂ los ntawm 600 tons los ntawm kev siv tshuab rov ua dua cov roj pov tseg.
III. Kev Tswj Xyuas Zog: Kev Siv Digital thiab Kev Lag Luam Ib Ncigs
1. Cov Txheej Txheem Saib Xyuas Lub Zog Ntse
Siv cov IoT sensors los saib xyuas cov ntaub ntawv siv hluav taws xob tiag tiag (piv txwv li, hluav taws xob thiab cua sov) thoob plaws cov theem tsim khoom, ua kom cov khoom siv zoo dua los ntawm kev siv AI algorithms. Piv txwv li, ib lub tuam txhab tau txo lub sijhawm ua haujlwm ntawm lub cub tawg graphitization los ntawm 30% los ntawm kev saib xyuas ntse, txuag tau kwv yees li 500,000 kWh ntawm hluav taws xob txhua xyoo.
2. Kev Ntxes, Siv, thiab Khaws Cov Pa roj Carbon (CCUS)
Nruab cov khoom siv ntes cov pa roj carbon ntawm cov qhov hluav taws xob ntawm lub cub tawg graphitization kom nias CO₂ rau kev txhaj tshuaj hauv av lossis siv ua cov khoom siv tshuaj lom neeg. Txawm hais tias tus nqi siab tam sim no (kwv yees li 300-600 RMB / ton CO₂), CCUS sawv cev rau txoj hauv kev tseem ceeb mus sij hawm ntev rau kev tshem tawm cov pa roj carbon ntau.
3. Cov Qauv Kev Lag Luam Ib Ncigs
- Kev Tso Dej Pov Tseg Tsis Muaj Dab Tsi: Kho cov dej khib nyiab hauv tsev kom rov siv dua hauv kev ntxuav cov pa roj lossis kev ua kom zoo nkauj, thaum siv cov dej khib nyiab tsim tawm. Lub Shanxi Taigu Project tau ua tiav kev tso dej khib nyiab tsis muaj dab tsi, txuag tau kwv yees li 100,000 tons dej txhua xyoo.
- Kev Siv Cov Khib Nyhiab Rov Qab: Rov qab cov hmoov av uas tau sau los ntawm lub tsev ntim khoom (kwv yees li 344 tons/xyoo) thiab cov khoom seem uas tau txiav los ntawm lub ntsej muag kawg (kwv yees li 500 tons/xyoo) mus rau kab ntau lawm, txo cov khoom siv raw thiab cov pa phem uas cuam tshuam nrog kev kho cov khib nyiab.
IV. Txoj Cai thiab Kev Ua Lag Luam Sib Koom Tes: Tsav Kev Hloov Pauv Hauv Kev Lag Luam
1. Kev Siv Cov Qauv Uas Muaj Pa Hluav Taws Xob Tsawg Kawg Nkaus
Txais yuav cov qauv xws liCov Txheej Txheem Pa Tawm ntawm Cov Pa phem rau Kev Lag Luam Aluminium(GB25465-2010), yuam kom muaj cov khoom me me, SO₂, thiab NOx concentration ntawm ≤10 mg/m³, ≤35 mg/m³, thiab ≤50 mg/m³, raws li, los yuam kom muaj kev txhim kho thev naus laus zis.
2. Cov Nyiaj Txhawb Nqa Kev Lag Luam Carbon
Xam kom muaj kev tsim cov graphite electrode hauv kev lag luam carbon hauv tebchaws los tsim kev txwv kev lag luam los ntawm kev lag luam carbon quota. Piv txwv li, yog tias ib lub tuam txhab txo cov pa roj carbon ib tuj ntawm cov electrodes los ntawm 4.5 tons mus rau 3 tons, nws tuaj yeem tau txiaj ntsig los ntawm kev muag cov quotas seem, txhawb kom muaj lub voj voog zoo ntawm kev txo cov pa roj.
3. Daim Ntawv Pov Thawj Txog Kev Muab Khoom Ntsuab
Cov tuam txhab ua hlau hauv qab tuaj yeem muab qhov tseem ceeb rau kev yuav cov electrodes graphite uas muaj cov pa roj carbon tsawg los txhawb kom cov neeg tsim khoom hauv qab kom txo cov pa phem. Piv txwv li, ib lub Hoobkas hlau hluav taws xob arc furnace xav kom cov neeg muag khoom ua tiav ≤3.5 tons ntawm CO₂ emissions ib tuj ntawm cov electrodes, uas yuav tsum tau them tus nqi ntxiv 10% rau cov neeg tsis ua raws li txoj cai.
Lub sijhawm tshaj tawm: Lub Yim Hli-12-2025