Yintoni umahluko phakathi kwe-petroleum coke kunye ne-needle coke kunye nefuthe lazo kumgangatho we-electrode?

Umahluko oPhambili phakathi kwePetroleum Coke kunye neNeedle Coke kunye neMpembelelo yazo kuMgangatho weElectrode

I. Umahluko kwiZinto eziKrwada kunye neenkqubo zeMveliso

I-Petroleum Coke

• Izinto ezisetyenzisiweyo: Ngokuyintloko zenziwe ngeoyile enzima okanye ioyile eseleyo evela kwi-oyile ekrwada, enomxholo ophezulu wokungcola (umz., isulfure, vanadium, nickel).
• Inkqubo: Yenziwe ngokucola okucoliweyo, yenze isakhiwo esifana nesiponji esingalungelelananga emva kokuqhekeka kobushushu obuphezulu, kunye nemingxuma emikhulu (ukuya kuthi ga kwi-0.3 cm³/g) kunye nokufunxwa bumswakama.
• Ixabiso: Inkqubo elula yokuvelisa eneendleko eziphantsi, kodwa umgangatho uyatshintshatshintsha ngenxa yokuxhomekeka kuzinzo lwezinto ezikrwada.

I-Needle Coke

• Izinto ezisetyenziswa gwenxa: Ifuna ioyile eseleyo yepetroleum ene-sulfur ephantsi, ene-nitrogen ephantsi (umz., i-catalytic cracking oil slurry) okanye i-coal tar pitch, ngolawulo olungqongqo lokungcola.
• Inkqubo: Ibandakanya ukucoca izinto eziluhlaza kwangaphambili, ukucola okulibazisekileyo, kunye nokucola okushushu kakhulu (1,200–1,400°C), okubangela ukuba iikristale zekhabhoni ezijolise kakhulu zenze isakhiwo esineentambo.
• Ixabiso: Inkqubo yokuvelisa enzima eneendleko eziphindwe kaninzi kune-petroleum coke eqhelekileyo, kodwa inika imveliso esebenza kakuhle kakhulu.

II. Iimpembelelo kuMgangatho we-Electrode

Ukuqhuba kombane

• I-Petroleum Coke: Inamandla okumelana nobushushu aphezulu, achaphazeleka kakhulu bubumdaka (umz., i-sulfur, i-vanadium). I-High-sulfur coke ivelisa ii-gaseous oxides ngexesha le-electrolysis, nto leyo ebangela ungcoliseko lokusingqongileyo kunye nokuncipha kokuqhuba kombane.
• I-Needle Coke: Ukumelana okuphantsi (indlela ephambili yokuvavanya umgangatho ngokusebenzisa ukumelana nomgubo), ukuqinisekisa ukuhanjiswa kombane okugqwesileyo, ukusetyenziswa kwamandla okuphantsi, kunye nokusebenza kakuhle kwamandla ombane.

Uzinzo lobushushu kunye nokumelana ne-oxidation

• I-Petroleum Coke: I-coefficient ephezulu yokwandiswa kobushushu (CTE), enokuqhekeka phantsi kwamaqondo obushushu aphezulu, kunye nokumelana okungalunganga kwe-oxidation, okukhokelela ekusetyenzisweni kwe-electrode ngokukhawuleza.
• I-Needle Coke: I-CTE ephantsi kunye nokumelana okukhulu kobushushu, igcina uzinzo lwesakhiwo kumaqondo obushushu angaphezulu kwe-3,000°C kwaye yandisa ubomi be-electrode.

Amandla oomatshini kunye nokumelana nokugqwala

• I-Petroleum Coke: Amandla amancinci eenxalenye, aqhekeka lula kwizisombululo ze-cryolite ezirhabaxa, nto leyo ebangela ukusetyenziswa kakhulu.
• I-Needle Coke: Ulwakhiwo olune-fiber lusasaza ngempumelelo uxinzelelo, lunika ukumelana okugqwesileyo nokukrweleka koomatshini, lufanelekile kwiindawo ezinzima ezifana nokwenza intsimbi yesithando somlilo esinamandla aphezulu.

Ulawulo Lokungcola kunye Nokungaguquguquki Kwemveliso

• I-Petroleum Coke: Umahluko omkhulu kumxholo wokungcola (umz., i-Ni, i-V, i-Ca), ekhuthaza ukusabela kwe-anode oxidation, iphazamisa ukusebenza kwe-electrode kwaye inciphise ukusebenza kakuhle kwe-aluminium electrolysis.
• I-Needle Coke: Amanqanaba okungcola aphantsi kakhulu afunyanwa ngokucocwa kwamanzi ngokunzulu kunye nokulungiswa kwe-calcination okuqinileyo, okuqinisekisa ukuhambelana okuphezulu kwemveliso yokwenziwa kwee-electrode eziphezulu.

III. Izicelo kunye nexabiso lezoqoqosho

I-Petroleum Coke

• Iindlela eziphambili zokusetyenziswa: Amafutha emizi-mveliso (umz., ii-kilns zesamente, ii-oven zeglasi), izinto zekhabhoni ezikumgangatho ophantsi (umz., ii-electrodes ze-graphite ezisisiseko, i-anode paste).
• Imida: Ukwehla kwemarike ye-high-sulfur coke ngenxa yemithetho yokusingqongileyo, engafanelekiyo ukusetyenziswa kweyona mveliso iphezulu.

I-Needle Coke

• Izicelo Eziphambili: Ixabiso Lezoqoqosho: Ixabiso layo liphezulu ngokuphindwe ka-5–10 kune-petroleum coke eqhelekileyo, kunye nemfuno ekhulayo eqhutywa kukuqhubela phambili kwezobuchwepheshe obutsha bamandla.
• Ii-electrode zegrafiti ezinamandla aphezulu kakhulu: Ezimalunga ne-60% yemfuno iyonke ye-needle coke, zibaluleke kakhulu ekwenzeni intsimbi ye-arc furnace yombane.
• Ii-anode zebhetri ye-lithium-ion eziphezulu: Ulwakhiwo oluneeleya kunye nekristalinity zenza kube lula ukusasazwa kwe-lithium-ion, nto leyo ephucula ukusebenza kakuhle kokutshaja/ukukhupha ibhetri.
• Iimveliso zegrafiti ezikhethekileyo: Ezifana negrafiti yenyukliya kunye nezixhobo zegrafiti ezisebenzisa ubushushu obuphezulu.

IV. Iindlela kunye nemingeni yoShishino

I-Needle Coke:

• Ukwanda ngokukhawuleza kwamandla asekhaya (kuqikelelwa ukuba amandla e-needle coke asekelwe kwioyile aya kufikelela kwiitoni eziyi-2.21 yezigidi ngonyaka ngo-2023), nangona ukuthembela kwiimveliso ezithengiswa kwamanye amazwe ezikumgangatho ophezulu kusaqhubeka. Impumelelo kwezobuchwepheshe isabalulekile.

I-Petroleum Coke:

• Iimarike eziphakathi ukuya kwezisezantsi zijongene noxinzelelo lokusingqongileyo, nto leyo ebangela ukuba kuqiniswe umgangatho ngokusebenzisa iindlela zangaphambi kokuba kubekho i-homogenization (umz., ukuxuba izinto eziluhlaza ezivela kwimithombo eyahlukeneyo). Nangona kunjalo, ayinakuthatha indawo ye-needle coke kwizicelo eziphezulu.