Uyini umehluko phakathi kwe-petroleum coke ne-needle coke kanye nethonya lazo ekhwalithini ye-electrode?

Umehluko Omkhulu Phakathi kwe-Petroleum Coke ne-Needle Coke kanye Nemiphumela Yazo Ekhwalithini Ye-Electrode

I. Umehluko ezintweni zokwakha kanye nezinqubo zokukhiqiza

I-Petroleum Coke

• Izinto Zokusetshenziswa: Ngokuyinhloko zakhiwe ngamafutha asindayo noma amafutha asele avela ekuhluzweni kwamafutha angahluziwe, anokuqukethwe okuphezulu kokungcola (isb., isulfure, vanadium, nickel).
• Inqubo: Ikhiqizwa ngokuphekwa okuphuzile, yakha isakhiwo esifana nesiponji esingahlelekile ngemva kokuqhekeka kokushisa okuphezulu, esinomthamo omkhulu wembobo (kufika ku->0.3 cm³/g) kanye nokuthambekela ekumuncweni komswakama.
• Izindleko: Inqubo yokukhiqiza elula enezindleko eziphansi, kodwa ikhwalithi iyashintshashintsha ngenxa yokuthembela ekuqineni kwezinto zokusetshenziswa.

I-Needle Coke

• Izinto Zokusetshenziswa: Kudinga uwoyela osele we-petroleum one-sulfur ephansi, one-nitrogen ephansi (isb., i-catalytic cracking oil slurry) noma i-coal tar pitch, ngokulawula okuqinile kokungcola.
• Inqubo: Ihilela ukwelashwa kwangaphambili kwezinto zokusetshenziswa, ukubilisa okuphuzile, kanye nokubalwa kwe-calcination okushisa okuphezulu kakhulu (1,200–1,400°C), okuholela ekutheni amakristalu e-carbon aqondiswe kakhulu akhe isakhiwo se-fiber.
• Izindleko: Inqubo yokukhiqiza eyinkimbinkimbi enezindleko eziphakeme kaningana kune-petroleum coke evamile, kodwa inikeza ukusebenza okuhle kakhulu komkhiqizo.

II. Imithelela Ekhwalithini Ye-Electrode

Ukuqhuba Kagesi

• I-Petroleum Coke: Ukumelana okuphezulu, okuthintwa kakhulu ukungcola (isb., i-sulfur, i-vanadium). I-High-sulfur coke ikhiqiza ama-gaseous oxides ngesikhathi se-electrolysis, okubangela ukungcola kwemvelo kanye nokwehla kokuqhuba.
• I-Needle Coke: Ukumelana okuphansi (isilinganiso esibalulekile sokuhlolwa kwekhwalithi ngokumelana nempuphu), okuqinisekisa ukuhanjiswa kukagesi okuhle kakhulu, ukusetshenziswa kwamandla okuncishisiwe, kanye nokusebenza kahle kwamandla kagesi okuthuthukisiwe.

Ukuqina Kokushisa Nokumelana Nokushiswa Kwe-Oxidation

• I-Petroleum Coke: I-coefficient ephezulu yokwanda kokushisa (i-CTE), evame ukuqhekeka ngaphansi kwamazinga okushisa aphezulu, enokumelana okungekuhle kwe-oxidation, okuholela ekusetshenzisweni kwe-electrode okusheshayo.
• I-Needle Coke: I-CTE ephansi kanye nokumelana okukhulu kokushaqeka kokushisa, okugcina ukuzinza kwesakhiwo emazingeni okushisa angaphezu kuka-3,000°C futhi kwandise isikhathi sokuphila kwe-electrode.

Amandla Okusebenza Nokumelana Nokugqwala

• I-Petroleum Coke: Amandla amancane ezinhlayiya, avame ukuqhekeka ezixazululweni ze-cryolite ezinamandla, okwandisa ukusetshenziswa ngokweqile.
• I-Needle Coke: Isakhiwo se-fiber sisabalalisa ngempumelelo ukucindezeleka, sinikeza ukumelana okumangalisayo nokuklwebheka komshini, okulungele izindawo ezinzima njengokwenza insimbi yesithando sikagesi esinamandla amakhulu.

Ukulawulwa Kokungcola Nokungaguquguquki Komkhiqizo

• I-Petroleum Coke: Ukuguquguquka okuphezulu kokuqukethwe kokungcola (isb., i-Ni, i-V, i-Ca), okukhuthaza ukusabela kwe-anode oxidation, okuphazamisa ukusebenza kwe-electrode futhi kunciphisa ukusebenza kahle kwe-aluminium electrolysis.
• I-Needle Coke: Amazinga okungcola aphansi kakhulu atholakala ngokuhlanzwa kwamanzi okujulile kanye nokubalwa kwe-calcination okuqinile, okuqinisekisa ukuhambisana okuphezulu komkhiqizo wokukhiqizwa kwama-electrode aphezulu.

III. Izicelo kanye Nenani Lezomnotho

I-Petroleum Coke

• Ukusetshenziswa Okuyinhloko: Izinto zokubasa zezimboni (isb., amahhavini kasimende, izitofu zengilazi), izinto zekhabhoni ezisezingeni eliphansi (isb., ama-electrode ayisisekelo e-graphite, i-anode paste).
• Imikhawulo: Ukwehla kwemakethe ye-coke ene-sulfur ephezulu ngenxa yemithethonqubo yezemvelo, okungafanele ukusetshenziswa kwekhwalithi ephezulu.

I-Needle Coke

• Izicelo Eziyinhloko: Inani Lezomnotho: Intengo yayo iphakeme ngokuphindwe ka-5–10 kune-petroleum coke evamile, kanye nesidingo esikhulayo esiqhutshwa ukuthuthuka kobuchwepheshe obusha bamandla.
• Ama-electrode e-graphite anamandla aphezulu kakhulu: Anenani elingaphezulu kwama-60% lesidingo se-needle coke, okubaluleke kakhulu ekwenzeni insimbi yesithando sikagesi se-arc.
• Ama-anode ebhethri le-lithium-ion aphezulu: Isakhiwo esinezingqimba kanye nokwakheka kwekristalu kwenza kube lula ukusabalala kwe-lithium-ion, okuthuthukisa ukusebenza kahle kokushaja/ukukhipha ibhethri.
• Imikhiqizo ekhethekile ye-graphite: Njenge-graphite yenuzi kanye nezinto ze-graphite ezisebenzisa ukushisa okuphezulu.

IV. Imikhuba Nezinselele Zemboni

I-Needle Coke:

• Ukwanda okusheshayo kwamandla asekhaya (kucatshangwa ukuthi amandla e-needle coke asekelwe ku-oyili azofinyelela amathani ayizigidi ezingu-2.21 ngonyaka ngo-2023), nakuba ukuthembela ekuthengisweni kwemikhiqizo esezingeni eliphezulu kusaqhubeka. Intuthuko kwezobuchwepheshe isalokhu ibalulekile.

I-Petroleum Coke:

• Izimakethe eziphakathi kuya kweziphansi zibhekene nezingcindezi zemvelo, okudinga ukuqiniswa kwekhwalithi ngokusebenzisa amasu angaphambi kokuhlanganiswa kwe-homogenization (isb., ukuxuba izinto zokusetshenziswa ezivela emithonjeni ehlukene). Kodwa-ke, ayikwazi ukuthatha indawo ye-needle coke ezisetshenziswayo eziphezulu.