Monga chuma chosasinthika, mafuta ali ndi makhalidwe osiyanasiyana oyerekeza kutengera komwe adachokera. Komabe, poganizira malo osungira mafuta osakonzedwa padziko lonse lapansi komanso kufalikira kwa mafuta osakonzedwa padziko lonse lapansi, mafuta osakonzedwa opepuka ndi okwana matani 39 biliyoni, omwe ndi ochepa poyerekeza ndi mafuta osakonzedwa a sulfure, mafuta osakonzedwa apakati ndi mafuta osakonzedwa olemera. Madera akuluakulu opanga mafuta padziko lonse lapansi ndi West Africa, Brazil, North Sea, Mediterranean, North America, Far East ndi malo ena. Monga zotsatira za njira yachikhalidwe yoyeretsera mafuta, kupanga mafuta a coke ndi zizindikiro zake zimagwirizana kwambiri ndi zizindikiro za mafuta osakonzedwa. Pokhudzidwa ndi izi, kuchokera kumalingaliro a kapangidwe ka mafuta osakonzedwa padziko lonse lapansi, kuchuluka kwa mafuta a coke otsika ndi sulfure ndi kotsika kwambiri kuposa kwa mafuta a coke apakati ndi apamwamba.
Poganizira momwe zinthu zilili ku China, mafuta a coke otsika-sulfur (petroleum coke yokhala ndi sulfure yochepera 1.0%) ndi 14% ya mafuta onse a coke padziko lonse lapansi. Amaimira pafupifupi 5% ya mafuta onse ochokera kunja ku China. Tiyeni tiwone momwe mafuta a coke otsika-sulfur akupezeka ku China m'zaka ziwiri zapitazi.
Malinga ndi deta ya zaka ziwiri zapitazi, kuchuluka kwa mafuta a coke otsika-sulfur m'mafakitale opangira mafuta m'nyumba kwakhala pafupifupi matani 300,000 pamwezi, ndipo kuchuluka kwa mafuta a coke otsika-sulfur omwe amatumizidwa kunja kwakhala kusinthasintha pang'ono, kufika pachimake mu Novembala 2021. Komabe, palinso milandu pomwe kuchuluka kwa mafuta a coke otsika-sulfur omwe amatumizidwa kunja pamwezi ndi zero. Poganizira kuchuluka kwa mafuta a coke otsika-sulfur ku China m'zaka ziwiri zapitazi, kuchuluka kwa mafuta pamwezi kwakhalabe pamlingo wapamwamba wa matani pafupifupi 400,000 kuyambira Ogasiti chaka chino.
Kuchokera pakuwona kufunika kwa mafuta a coke otsika sulfure ku China, amagwiritsidwa ntchito kwambiri popanga ma electrode a graphite, zida zopangira graphite anode, ma cathode a graphite ndi ma anode ophikidwa kale. Kufunika kwa mafuta a coke otsika sulfure m'magawo atatu oyamba ndi kofunikira kwambiri, ndipo kufunika kwa mafuta a coke otsika sulfure m'magawo a anode ophikidwa kale kumagwiritsidwa ntchito makamaka poyika zizindikiro, makamaka kupanga ma anode apamwamba ophikidwa kale omwe ali ndi zofunikira zambiri za sulfure ndi zinthu zotsalira. Kuyambira pachiyambi cha chaka chino, chifukwa cha kuchuluka kwa gwero la mafuta a coke ochokera kunja, zinthu zambiri zokhala ndi zinthu zabwino zotsalira zafika ku Hong Kong. Pa gawo la ma anode ophikidwa kale, kusankha zinthu zopangira kwawonjezeka, ndipo kudalira kwake pa mafuta a coke otsika sulfure kwachepanso. Kuphatikiza apo, mu theka lachiwiri la chaka chino, kuchuluka kwa ntchito ya graphite electrode yapakhomo kwatsika kufika pansi pa 30%, kutsika kufika pamlingo wozizira kwambiri. Chifukwa chake, kuyambira kotala lachinayi, kupezeka kwa coke yamafuta ochepa a sulfure m'nyumba kwakhala kukukwera ndipo kufunikira kwachepa, zomwe zapangitsa kuti mtengo wa coke yamafuta ochepa a sulfure m'nyumba utsike.
Poganizira kusintha kwa mitengo ya fakitale yoyeretsera mafuta ya CNOOC m'zaka ziwiri zapitazi, mtengo wa coke ya mafuta ochepa a sulfure wayamba kusinthasintha kuchokera pamlingo wapamwamba kuyambira theka lachiwiri la chaka. Komabe, posachedwapa, msika wayamba kusonyeza pang'onopang'ono zizindikiro za kukhazikika, chifukwa kufunikira kwa coke ya mafuta ochepa a sulfure m'munda wa anode yophikidwa kale kuli ndi malo otambalala kwambiri. Kusiyana kwa mitengo pakati pa coke ya mafuta ochepa a sulfure ndi coke ya mafuta a medium-sulfur kunabwerera pang'onopang'ono.
Ponena za kufunikira komwe kulipo pano m'munda wapansi wa petroleum coke, kuwonjezera pa kufunikira pang'onopang'ono kwa ma electrode a graphite, kufunikira kwa zipangizo zopangira graphite anode, ma cathode a graphite ndi ma anode ophika kale kukadali kwakukulu, ndipo kufunikira kolimba kwa petroleum coke yapakati ndi yotsika ya sulfure kukadali kwakukulu. Mwachidule, kwakanthawi kochepa, chuma chonse cha petroleum coke chapansi pa sulfure chili chochuluka, ndipo chithandizo chamitengo ndi chofooka, koma petroleum coke yapakati pa sulfure ikadali yolimba, yomwe imagwiranso ntchito yothandizira pamsika wa petroleum coke wapansi pa sulfure.
Contact:+8618230208262,Catherine@qfcarbon.com
Nthawi yotumizira: Novembala-22-2022