I-petroleum coke ingumkhiqizo we-petroleum omnyama noma omnyama oqinile ocwebezelayo futhi unezimbotshana.

Izingxenye ze-petroleum coke ama-hydrocarbon, aqukethe i-90-97% carbon, 1.5-8% ye-hydrogen, i-nitrogen, i-chlorine, isulfure kanye nezinhlanganisela zensimbi ezisindayo.I-petroleum coke ingumkhiqizo we-pyrolysis kawoyela we-feedstock kumayunithi wokupheka abambezelekile emazingeni okushisa aphezulu ukukhiqiza imikhiqizo kawoyela elula.Umphumela we-petroleum coke cishe u-25-30% wamafutha aluhlaza.Inani layo eliphansi le-calorific cishe izikhathi ezingu-1.5-2 zamalahle, okuqukethwe komlotha akukhona ngaphezu kuka-0.5%, indaba eguquguqukayo imayelana ne-11%, futhi ikhwalithi iseduze ne-anthracite.Ngokwesakhiwo nokubukeka kwe-petroleum coke, imikhiqizo ye-petroleum coke ingahlukaniswa ngezinhlobo ezi-4: i-coke yenaliti, i-sponge coke, i-projectile coke ne-powder coke:

(1) I-coke yenaliti, enesakhiwo esisobala njengenaliti kanye nokuthungwa kwefayibha, isetshenziswa ngokuyinhloko njengama-electrode e-graphite anamandla aphezulu kanye ne-ultra-high-high-high ekwenzeni insimbi.Njengoba inaliti ye-needle inezidingo eziqinile zenkomba yekhwalithi mayelana nokuqukethwe kwesibabule, okuqukethwe komlotha, izinto eziguquguqukayo kanye nokuminyana kwangempela, kunezidingo ezikhethekile zobuchwepheshe bokukhiqiza inaliti ye-coke nezinto zokusetshenziswa.

(2) I-sponge coke, ene-high chemical reactivity kanye nokungcola okuphansi, isetshenziswa kakhulu embonini yokuncibilikisa i-aluminium kanye nemboni ye-carbon.

(3) I-projectile coke noma i-coke eyindilinga: Iyindilinga futhi inobubanzi obungu-0.6-30mm.Ngokuvamile ikhiqizwa kusuka kuwoyela osele we-sulfur kanye ne-asphaltene ephezulu futhi ingasetshenziswa kuphela njengezibaseli zezimboni ezifana nokukhiqiza amandla nosimende.

(4) I-powder coke: Ikhiqizwa inqubo yokupheka e-fluidized, enezinhlayiya ezinhle (ububanzi obungu-0.1-0.4mm), okuqukethwe okuguquguqukayo okuphezulu kanye ne-coefficient ephezulu yokwandisa ukushisa, ngakho ayikwazi ukusetshenziswa ngokuqondile ekulungiseleleni i-electrode kanye nemboni ye-carbon.

Ngokusho kokuqukethwe kwesulfure okuhlukile, ingahlukaniswa ibe yi-coke ephezulu-sulphur (okuqukethwe kwesulfure ngaphezu kuka-3%) kanye ne-coke ephansi-sulphur (okuqukethwe kwesulfure ngaphansi kuka-3%).I-coke enesulfure ephansi ingasetshenziswa njenge-anode paste kanye nama-anode abhakiwe ngaphambilini ezitshalweni ze-aluminium nanjengama-electrode e-graphite ezitshalweni zensimbi.Phakathi kwazo, i-coke yekhwalithi ephezulu yesulfure ephansi (okuqukethwe kwesibabule ngaphansi kuka-0.5%) kungasetshenziswa ukukhiqiza ama-electrode e-graphite kanye nezithuthukisi ze-carbon.I-coke enesulfure ephansi yekhwalithi evamile (engaphansi kuka-1.5% sulphur) ivame ukusetshenziselwa ukukhiqiza ama-anode aphekiwe.I-petroleum coke yekhwalithi ephansi isetshenziselwa ikakhulukazi ukuncibilikisa i-silicon yezimboni kanye nokukhiqiza unamathisele we-anode.I-high-sulfur coke ngokuvamile isetshenziswa njengophethiloli ezitshalweni zikasimende nasezitshalweni zikagesi.

I-Calcined Petroleum Coke:

Endabeni yama-electrode e-graphite yokwenza i-steelmaking noma i-anode pastes (ama-electrode ancibilikayo) okukhiqizwa kwe-aluminium ne-magnesium, ukuze uvumelane ne-petroleum coke (i-coke eluhlaza) nezidingo, i-coke eluhlaza kufanele ibalwe.Izinga lokushisa lokubala ngokuvamile lizungeze i-1300 ° C, inhloso ukususa izingxenye eziguquguqukayo ze-petroleum coke ngangokunokwenzeka.Ngale ndlela, okuqukethwe kwe-hydrogen ye-coke ye-petroleum egaywe kabusha kungancishiswa, futhi izinga le-graphitization le-coke ye-petroleum lingathuthukiswa, ngaleyo ndlela kuthuthukiswe amandla okushisa aphezulu kanye nokumelana nokushisa kwe-electrode ye-graphite, nokuthuthukisa ukuqhutshwa kukagesi kwegraphite. i-electrode.I-coke ene-calcined isetshenziswa kakhulu ekukhiqizeni ama-electrode e-graphite, imikhiqizo ye-carbon paste, isihlabathi sedayimane, imboni ye-phosphorus yezinga lokudla, imboni ye-metallurgical kanye ne-calcium carbide, phakathi kwayo ama-electrode e-graphite asetshenziswa kakhulu.I-coke eluhlaza ingasetshenziselwa ngokuqondile i-calcium carbide njengento eyinhloko ye-calcium carbide ngaphandle kokubala, kanye nokukhiqiza i-silicon carbide ne-boron carbide njengezinto eziqhumayo.Ingasetshenziswa futhi ngokuqondile njenge-coke yesithando somlilo embonini ye-metallurgical noma isitini sekhabhoni sokuqhunyiswa kodonga lwesithando somlilo, futhi ingasetshenziswa njenge-coke eminyene yenqubo yokuphonsa.