Man fetur coke samfurin mai ne mai launin toka mai duhu ko duhu wanda ke da sheƙi na ƙarfe kuma yana da ramuka.

Abubuwan da ke cikin man fetur na coke hydrocarbons ne, waɗanda ke ɗauke da kashi 90-97% na carbon, kashi 1.5-8% na hydrogen, nitrogen, chlorine, sulfur da kuma mahaɗan ƙarfe masu nauyi. Man fetur na coke wani sinadari ne na pyrolysis na man feedstock a cikin na'urorin coking masu jinkiri a yanayin zafi mai yawa don samar da samfuran mai masu sauƙi. Fitar man fetur na coke kusan kashi 25-30% na man danye ne. Ƙarancin kalorinsa ya ninka na kwal sau 1.5-2, yawan tokar bai wuce kashi 0.5% ba, yanayin da ke canzawa kusan kashi 11% ne, kuma ingancinsa yana kusa da anthracite. Dangane da tsari da bayyanar man fetur na coke, ana iya raba samfuran man fetur na coke zuwa nau'i 4: allurar coke, soso coke, projectile coke da foda coke:

(1) Ana amfani da allurar coke, mai tsari mai kama da allura da kuma zare, galibi a matsayin electrodes mai ƙarfi da ƙarfi sosai a aikin ƙarfe. Tunda allurar coke tana da ƙa'idodin inganci masu tsauri dangane da abun ciki na sulfur, abun ciki na toka, abu mai canzawa da kuma yawan gaske, akwai buƙatu na musamman don fasahar samar da allurar coke da kayan aiki.

(2) Ana amfani da sinadarin soso mai yawa a masana'antar narkar da aluminum da kuma masana'antar carbon, musamman a fannin sinadaran da ke aiki a cikin soso.

(3) Coke mai kama da robobi ko coke mai siffar ƙwallo: Siffarsa mai siffar ƙwallo ce kuma diamitarta ya kai 0.6-30mm. Galibi ana samar da ita ne daga man fetur mai yawan sulfur da mai yawan asphaltene kuma ana iya amfani da ita ne kawai a matsayin mai a masana'antu kamar samar da wutar lantarki da siminti.

(4) Coke na foda: Ana samar da shi ta hanyar tsarin coke mai ruwa-ruwa, tare da ƙananan ƙwayoyin cuta (diamita 0.1-0.4mm), babban abun ciki mai canzawa da kuma yawan faɗaɗa zafi mai yawa, don haka ba za a iya amfani da shi kai tsaye a cikin shirye-shiryen lantarki da masana'antar carbon ba.

Dangane da bambancin sinadarin sulfur, ana iya raba shi zuwa manyan coke masu sulfur (wanda ya wuce kashi 3%) da kuma ƙananan coke masu sulfur (wanda ya wuce kashi 3%). Ana iya amfani da ƙananan coke masu sulfur azaman man shafawa na anode da kuma anod da aka riga aka gasa don masana'antar aluminum da kuma a matsayin electrodes na graphite don masana'antar ƙarfe. Daga cikinsu, ana iya amfani da ƙananan coke masu inganci (wanda ya wuce kashi 0.5%) don samar da electrodes na graphite da masu haɓaka carbon. Sau da yawa ana amfani da ƙananan coke masu inganci na gabaɗaya (ƙasa da kashi 1.5% na sulfur) don samar da anodes da aka riga aka gasa. Ana amfani da ƙananan coke masu inganci don narkar da silicon na masana'antu da samar da manna anode. Ana amfani da ƙananan coke masu inganci a matsayin mai a masana'antar siminti da masana'antar wutar lantarki.

Man fetur mai ɗauke da sinadarin Calcined:

Idan ana amfani da na'urorin lantarki na graphite don yin ƙarfe ko kuma man shafawa na anode (na'urorin lantarki masu narkewa) don samar da aluminum da magnesium, domin daidaita man fetur na coke (koren coke) zuwa ga buƙatunsa, dole ne a yi amfani da koren coke. Zafin calcination gabaɗaya yana kusa da 1300 ° C, manufar ita ce a cire abubuwan da ke canzawa na koren petroleum coke gwargwadon iko. Ta wannan hanyar, za a iya rage yawan sinadarin hydrogen na koren petroleum coke da aka sake yin amfani da shi, kuma za a iya inganta matakin graphitization na koren petroleum coke, ta haka ne za a inganta ƙarfin zafin jiki da juriyar zafi na koren graphite, da kuma inganta wutar lantarki na koren graphite. Ana amfani da koren calcined galibi wajen samar da na'urorin lantarki na graphite, kayayyakin man shafawa na carbon, yashi na lu'u-lu'u, masana'antar phosphorus mai daraja ta abinci, masana'antar ƙarfe da kuma sinadarin calcium carbide, waɗanda daga cikinsu akwai na'urorin lantarki na graphite da aka fi amfani da su. Ana iya amfani da koren coke kai tsaye don sinadarin calcium carbide a matsayin babban kayan sinadarin calcium carbide ba tare da calcination ba, da kuma samar da silicon carbide da boron carbide a matsayin kayan abrasive. Haka kuma za a iya amfani da shi kai tsaye azaman coke don tanderun fashewa a masana'antar ƙarfe ko tubalin carbon don rufin bango na tanderun fashewa, kuma ana iya amfani da shi azaman coke mai yawa don tsarin siminti.