Qhov Sib Txawv Tseem Ceeb Ntawm Petroleum Coke Thiab Needle Coke Thiab Lawv Cov Kev Cuam Tshuam Rau Qhov Zoo Ntawm Electrode
I. Qhov sib txawv ntawm Cov Khoom Siv Raw thiab Cov Txheej Txheem Tsim Khoom
Roj av Coke
- Cov Khoom Siv Raw: Feem ntau yog ua los ntawm cov roj hnyav lossis cov roj seem los ntawm kev rho roj nyoos, nrog cov ntsiab lus tsis huv siab (piv txwv li, sulfur, vanadium, nickel).
- Txheej Txheem: Tsim los ntawm kev ncua sij hawm coking, tsim cov qauv zoo li daim txhuam cev tom qab kub siab tawg, nrog cov qhov loj loj (txog li > 0.3 cm³ / g) thiab kev cuam tshuam rau kev nqus dej noo.
- Tus nqi: Cov txheej txheem tsim khoom yooj yim nrog cov nqi qis dua, tab sis qhov zoo hloov pauv ntau vim yog kev vam khom rau cov khoom siv raw khoom ruaj khov.
Koob Coke
- Cov Khoom Siv Raw: Yuav tsum muaj cov roj av uas tsis muaj sulfur ntau, cov roj av uas tsis muaj nitrogen ntau (piv txwv li, cov roj av catalytic cracking oil slurry) lossis cov thee tar pitch, nrog rau kev tswj hwm kev ua qias tuaj.
- Cov Txheej Txheem: Muaj kev kho ua ntej rau cov khoom siv raw, coking qeeb, thiab calcination kub heev (1,200–1,400 ° C), ua rau cov pa roj carbon microcrystals uas taw qhia siab heev tsim cov qauv fibrous.
- Tus nqi: Cov txheej txheem tsim khoom nyuaj nrog tus nqi ntau dua li cov roj av coke ib txwm muaj, tab sis muab cov khoom ua tau zoo dua.
II. Kev cuam tshuam rau qhov zoo ntawm lub electrode
Kev Ua Hluav Taws Xob
- Petroleum Coke: Muaj zog tiv taus siab, cuam tshuam los ntawm cov khoom tsis huv (piv txwv li, sulfur, vanadium). Cov coke uas muaj sulfur ntau tsim cov pa roj oxides thaum lub sijhawm electrolysis, ua rau muaj kuab paug rau ib puag ncig thiab txo qis kev coj ua hluav taws xob.
- Koob Coke: Tsis tshua muaj kev tiv taus (qhov ntsuas tseem ceeb rau kev ntsuam xyuas zoo los ntawm hmoov resistivity), ua kom muaj kev ua hluav taws xob zoo heev, txo kev siv hluav taws xob, thiab txhim kho kev ua haujlwm tam sim no.
Kev Ruaj Ntseg Thermal thiab Kev Tiv Thaiv Oxidation
- Petroleum Coke: Cov coefficient siab ntawm thermal expansion (CTE), yooj yim tawg thaum kub siab, nrog rau kev tiv thaiv oxidation tsis zoo, ua rau siv electrode sai dua.
- Koob Coke: CTE qis thiab muaj zog tiv taus kev poob siab thermal, tswj kev ruaj khov ntawm qhov kub tshaj 3,000 ° C thiab ua kom lub electrode siv tau ntev dua.
Lub Zog Kho Tshuab thiab Kev Tiv Thaiv Kev Sib Tsoo
- Petroleum Coke: Lub zog me me ntawm cov khoom me me, yooj yim tawg ua tej daim me me hauv cov kua cryolite uas ua rau siv ntau dhau.
- Koob Coke: Cov qauv fibrous ua rau kev ntxhov siab ploj mus zoo, muab kev tiv thaiv zoo rau kev puas tsuaj ntawm cov khoom siv, zoo tagnrho rau cov chaw ua haujlwm hnyav xws li lub tshuab hluav taws xob arc muaj zog heev.
Kev Tswj Xyuas Kev Ua Phem thiab Kev Sib Xws ntawm Cov Khoom
- Petroleum Coke: Muaj ntau yam tsis huv (piv txwv li, Ni, V, Ca), uas ua rau cov tshuaj oxidation anode ua haujlwm tsis ruaj khov, thiab txo cov txiaj ntsig electrolysis txhuas.
- Koob Coke: Cov qib tsis huv uas tsis muaj ntau dhau los ntawm kev ua kom huv si thiab kev calcination zoo, ua kom cov khoom lag luam zoo sib xws rau kev tsim cov electrode zoo tshaj plaws.
III. Cov Ntawv Thov thiab Tus Nqi Kev Lag Luam
Roj av Coke
- Kev Siv Tseem Ceeb: Cov roj siv hauv kev lag luam (piv txwv li, cov qhov cub cement, cov qhov cub iav), cov khoom siv carbon qis (piv txwv li, cov electrodes graphite yooj yim, cov tshuaj nplaum anode).
- Cov Kev Txwv: Kev lag luam poob qis rau cov coke uas muaj sulfur ntau vim yog cov cai ib puag ncig, tsis haum rau cov ntawv thov siab.
Koob Coke
- Cov Kev Siv Tseem Ceeb: Tus Nqi Lag Luam: Tus nqi siab dua 5–10 npaug ntawm cov roj av coke, nrog rau kev thov nce ntxiv los ntawm kev nce qib hauv cov thev naus laus zis tshiab.
- Cov electrodes graphite muaj zog heev: suav txog ntau dua 60% ntawm tag nrho cov kev xav tau ntawm cov koob coke, qhov no tseem ceeb rau kev ua hlau hauv lub cub tawg hluav taws xob.
- Cov roj teeb lithium-ion anodes zoo tshaj plaws: Cov qauv txheej txheem thiab crystallinity pab txhawb kev sib kis ntawm lithium-ion, ua kom lub roj teeb them / tso tawm zoo dua.
- Cov khoom siv graphite tshwj xeeb: Xws li nuclear graphite thiab cov ntaub ntawv graphite uas muaj thermal conductivity siab.
IV. Cov Qauv thiab Cov Teeb Meem ntawm Kev Lag Luam
Koob Coke:
- Kev nthuav dav ntawm lub peev xwm hauv tebchaws sai sai (kwv yees tias lub peev xwm siv roj los ua cov tshuaj coke yuav ncav cuag 2.21 lab tons / xyoo los ntawm 2023), txawm hais tias kev vam khom rau kev xa khoom tuaj rau cov khoom lag luam zoo tseem muaj. Kev tshawb fawb txog thev naus laus zis tseem ceeb heev.
Petroleum Coke:
- Cov lag luam nruab nrab mus rau qis kawg ntsib kev nyuaj siab ntawm ib puag ncig, uas yuav tsum tau ua kom zoo dua los ntawm kev siv cov txheej txheem ua ntej homogenization (piv txwv li, sib xyaw cov khoom siv raw los ntawm ntau qhov chaw sib txawv). Txawm li cas los xij, nws tsis tuaj yeem hloov cov koob coke hauv cov ntawv thov siab.
Lub sijhawm tshaj tawm: Lub Xya Hli-11-2025