He huahana paʻa lapalapa ka Petroleum Coke i loaʻa mai ke koena petroleum a me ka asphalt petroleum ma o ka coking. He ʻeleʻele a porous ke kala, ʻo ke kalapona ka mea nui, a he haʻahaʻa loa ka nui o ka lehu, ma lalo o 0.5%. He ʻano kalapona graphitized maʻalahi ka Petroleum Coke, a he nui nā hoʻohana o ka Petroleum Coke i ka ʻoihana kemika, metallurgy a me nā ʻoihana ʻē aʻe, a ʻo ia ke kumu nui no ka hana ʻana i nā huahana graphite artificial a me nā huahana kalapona alumini electrolytic.
Wahi a ka mahana o ka mālama ʻana i ka wela, hiki ke hoʻokaʻawale ʻia ka petroleum coke i ʻelua ʻano: ka coke maka a me ka calcined coke. ʻO ka petroleum coke mua i loaʻa mai ka coking lohi he nui ka nui o ka mea volatile a he haʻahaʻa ka ikaika mechanical. Loaʻa ka calcined coke ma o ka calcination. ʻO ka hapa nui o nā hale hoʻomaʻemaʻe ma Kina e hana wale i ka coke maka, a ʻo ka hapa nui o nā hana calcination e hana ʻia ma nā hale hana kalapona.
Hiki ke hoʻokaʻawale ʻia ka Coke Petroleum i ʻekolu ʻano: Coke sulfur kiʻekiʻe (me ka sulfur ma mua o 1.5%), Coke sulfur waena (me ka sulfur 0.5% -1.5%), a me Coke sulfur haʻahaʻa (me ka sulfur ma lalo o 0.5%). Hoʻohana pinepine ʻia nā electrodes graphite a me nā huahana graphite hana ʻē aʻe i ka hana ʻana o Coke sulfur haʻahaʻa.
ʻO ka coke nila he ʻano coke kiʻekiʻe me ke ʻano fibrous maopopo, ʻoi aku ka haʻahaʻa o ka coefficient hoʻonui wela a me ka maʻalahi o ka graphitization. Ke haki ka poloka coke, hiki ke hoʻokaʻawale ʻia i loko o nā ʻāpana ʻāpana lahilahi e like me ke ʻano (ʻoi aku ka nui o ka lakio hiʻohiʻona ma mua o 1.75), a hiki ke ʻike ʻia ke ʻano fibrous anisotropic ma lalo o ka microscope māmā polarized, no laila ua kapa ʻia ʻo coke nila.
ʻIke loa ʻia ke anisotropy kino a me ka mechanical o ka nila coke, a he maikaʻi kona conductivity uila a me ka thermal e kūlike ana me ke axis lōʻihi o nā ʻāpana, a haʻahaʻa ke coefficient hoʻonui thermal. I ka wā o ka hoʻoheheʻe ʻana o ka extrusion, ua hoʻonohonoho ʻia ke axis lōʻihi o ka hapa nui o nā ʻāpana e like me ke kuhikuhi extrusion. No laila, ʻo ka nila coke ke kumu nui no ka hana ʻana i nā electrodes graphite mana kiʻekiʻe a i ʻole ultra-high-power, nona ka resistivity haʻahaʻa, coefficient liʻiliʻi o ka hoʻonui thermal a me ke kūpaʻa haʻalulu thermal maikaʻi.
Ua māhele ʻia ka coke nila i ka coke nila ʻaila i hana ʻia mai ke koena petroleum a me ka coke nila lanahu i hana ʻia mai ka asphalt lanahu i hoʻomaʻemaʻe ʻia.
ʻO ka pitch tar lanahu kekahi o nā huahana nui o ka hana hohonu ʻana o ke tar lanahu. He hui ia o nā ʻano hydrocarbons like ʻole, ʻeleʻele kiʻekiʻe semi-solid a i ʻole paʻa i ka mahana o ka lumi, me ka ʻole o kahi kiko heheʻe paʻa, palupalu ma hope o ka wela, a laila hoʻoheheʻe ʻia, me ka nui o 1.25-1.35g/cm3. Wahi a kona kiko palupalu, ua māhele ʻia i ʻekolu ʻano ʻano i ka asphalt mahana haʻahaʻa, waena a me ke kiʻekiʻe. ʻO ka hua o ka asphalt mahana waena he 54-56% o ke tar lanahu. He paʻakikī loa ka haku mele ʻana o ka pitch lanahu, e pili ana i ka waiwai o ke tar lanahu a me ka nui o nā heteroatoms, a ua hoʻopilikia pū ʻia e ka ʻōnaehana hana coking a me nā kūlana hana o ke tar lanahu. Nui nā ʻōkuhi e wehewehe i nā waiwai o ka pitch lanahu, e like me ke kiko palupalu asphalt, toluene insoluble (TI), quinoline insoluble (QI), ka waiwai coking a me nā waiwai rheological o ka pitch lanahu.
Hoʻohana ʻia ka pitch lanahu ma ke ʻano he mea hoʻopaʻa a me ka mea hoʻopili i ka ʻoihana kalapona, a he mana nui kona mau waiwai i ke kaʻina hana a me ka maikaʻi o ka huahana o nā huahana kalapona. Hoʻohana ka asphalt mea hoʻopaʻa i ka mahana waena a i ʻole ka asphalt i hoʻololi ʻia i ka mahana waena me kahi palupalu waena, ka waiwai coking kiʻekiʻe a me ka resin beta kiʻekiʻe, a pono e hoʻohana ka mea hoʻopili i ka asphalt mahana waena me kahi palupalu haʻahaʻa, QI haʻahaʻa a me ka rheology maikaʻi.
Ka manawa hoʻouna: Pepeluali-07-2025