I-petroleum coke yimveliso yepetroleum emnyama okanye emnyama eqinileyo enentsimbi ecwebezelayo kwaye inamarhashalala.

Amacandelo e-petroleum coke yi-hydrocarbons, equkethe i-90-97% yekhabhoni, i-1.5-8% ye-hydrogen, i-nitrogen, i-chlorine, i-sulfure kunye ne-heavy metal compounds.I-petroleum coke yimveliso ye-pyrolysis ye-feedstock oil kwi-coking units ezilibaziseka kumaqondo aphezulu okushisa ukuvelisa iimveliso ze-oyile ezilula.Imveliso yepetroleum coke imalunga ne-25-30% yeoli eluhlaza.Ixabiso layo le-calorific eliphantsi li malunga ne-1.5-2 ngamaxesha amalahle, umxholo womlotha awukho ngaphezu kwe-0.5%, into eguqukayo malunga ne-11%, kwaye umgangatho usondele kwi-anthracite.Ngokwesakhiwo kunye nokubonakala kwepetroleum coke, iimveliso zepetroleum coke zinokwahlulwa zibe ziindidi ezi-4: inaliti yenaliti, icoke yesiponji, iprojectile coke kunye nepowder coke:

(1) I-coke yenaliti, enesakhiwo esicacileyo senaliti kunye ne-fiber texture, isetyenziswa kakhulu njengamandla aphezulu kunye ne-ultra-high-high-power graphite electrode ekwenzeni intsimbi.Ekubeni inaliti yenaliti ineemfuno ezingqongqo zesalathisi somgangatho ngokubhekiselele kumxholo wesulfure, umxholo we-ash, into eguquguqukayo kunye nobuninzi bokwenene, kukho iimfuno ezikhethekileyo zeteknoloji yokuvelisa i-coke kunye nezixhobo eziluhlaza.

(2) I-coke ye-sponge, ene-reactivity ephezulu yeekhemikhali kunye nomxholo ophantsi wokungcola, isetyenziswa kakhulu kwishishini lokunyibilikisa i-aluminium kunye ne-carbon industry.

(3) I-projectile coke okanye i-coke engqukuva: Imile okwengqukuva kunye ne-0.6-30mm ububanzi.Ngokuqhelekileyo iveliswa kwi-high-sulfur kunye ne-asphaltene ephezulu ye-oyile eseleyo kwaye ingasetyenziselwa kuphela njengamafutha amashishini afana nokuveliswa kwamandla kunye nesamente.

(4) I-coke ye-powder: Iveliswa yinkqubo yokucoca i-fluidized, kunye neengqungquthela ezintle (i-0.1-0.4mm ububanzi), umxholo ophezulu oguquguqukayo kunye ne-coefficient yokwandisa i-thermal, ngoko ayikwazi ukusetyenziswa ngokuthe ngqo ekulungiseleleni i-electrode kunye ne-carbon industry.

Ngokomxholo wesulfure ohlukeneyo, unokwahlula kwi-coke ephezulu yesulfure (umxholo wesulfure ngaphezu kwe-3%) kunye ne-coke ephantsi-sulfure (umxholo wesulfure ngaphantsi kwe-3%).I-coke yesulfure ephantsi ingasetyenziswa njenge-anode paste kunye ne-anode ebhakiweyo yezityalo ze-aluminium kunye ne-electrode yegraphite yezityalo zetsimbi.Phakathi kwabo, umgangatho ophezulu we-coke ephantsi kwesulfure (umxholo wesulfure ngaphantsi kwe-0.5%) ungasetyenziselwa ukuvelisa i-electrodes yegraphite kunye ne-carbon enhancers.I-coke yesulfure ephantsi yomgangatho oqhelekileyo (ngaphantsi kwe-1.5% sulfure) isoloko isetyenziselwa ukuvelisa i-anodes ephekiweyo.Icoke yepetroleum ekumgangatho ophantsi isetyenziselwa ukunyibilikisa isilicon yeshishini kunye nokuvelisa intlama ye anode.Icoke enesulfure ephezulu isetyenziswa ngokubanzi njengamafutha kwizityalo zesamente nakwimizi-mveliso yamandla.

I-Calcined Petroleum Coke:

Kwimeko ye-graphite electrode ye-steelmaking okanye i-anode pastes (i-electrodes enyibilikayo) ye-aluminium kunye nemveliso ye-magnesium, ukwenzela ukulungelelanisa i-petroleum coke (i-coke eluhlaza) kwiimfuno, i-coke eluhlaza kufuneka ibe ne-calcined.Iqondo lobushushu lokubala ngokuqhelekileyo lijikeleze i-1300 ° C, injongo kukususa amacandelo aguquguqukayo e-petroleum coke kangangoko kunokwenzeka.Ngale ndlela, umxholo we-hydrogen we-petroleum coke esetyenzisiweyo unokuncitshiswa, kwaye iqondo le-graphitization ye-coke ye-petroleum inokuphuculwa, ngaloo ndlela iphucula amandla aphezulu obushushu kunye nokumelana nobushushu be-electrode yegraphite, kunye nokuphucula ukuqhutyelwa kombane kwegraphite. i-electrode.I-coke ene-calcined isetyenziselwa ukuveliswa kwee-electrode zegraphite, iimveliso ze-carbon paste, isanti yedayimane, imboni ye-phosphorus yokutya, i-metallurgical industry kunye ne-calcium carbide, phakathi kwayo i-electrode yegraphite isetyenziswa kakhulu.I-coke eluhlaza ingasetyenziselwa ngokuthe ngqo kwi-calcium carbide njengeyona nto iphambili ye-calcium carbide ngaphandle kokubala, kunye nokuvelisa i-silicon carbide kunye ne-boron carbide njengezinto ezinqabileyo.Isenokusetyenziswa ngokuthe ngqo njenge-coke kwiziko eliqhumayo kwishishini lesinyithi okanye isitena sekhabhoni sokuqhushumba kodonga lwesithando somlilo, kwaye inokusetyenziswa njenge-coke eshinyeneyo kwinkqubo yokuphosa.