He ʻeleʻele a hina paha ka huahana petroleum paʻa o ka petroleum coke me ka ʻōlinolino metala a he porous.

ʻO nā ʻāpana o ka petroleum coke he mau hydrocarbons, nona ka 90-97% kalapona, 1.5-8% hydrogen, nitrogen, chlorine, sulfur a me nā hui metala kaumaha. ʻO ka petroleum coke kahi huahana o ka pyrolysis o ka ʻaila feedstock i nā ʻāpana coking lohi i nā mahana kiʻekiʻe e hana i nā huahana ʻaila māmā. ʻO ka hopena o ka petroleum coke ma kahi o 25-30% o ka ʻaila maka. ʻO kona waiwai calorific haʻahaʻa ma kahi o 1.5-2 mau manawa o ka lanahu, ʻaʻole ʻoi aku ka nui o ka lehu ma mua o 0.5%, ʻo ka mea volatile ma kahi o 11%, a kokoke ke ʻano i ka anthracite. Wahi a ke ʻano a me ke ʻano o ka petroleum coke, hiki ke hoʻokaʻawale ʻia nā huahana petroleum coke i 4 mau ʻano: nila coke, sponge coke, projectile coke a me ka pauka coke:

(1) ʻO ka nila coke, me ke ʻano like me ka nila a me ke ʻano o ka fiber, hoʻohana nui ʻia e like me nā electrodes graphite mana kiʻekiʻe a me ka mana kiʻekiʻe loa i ka hana kila. ʻOiai he mau koi koʻikoʻi ko ka nila coke e pili ana i ka ʻike sulfur, ka ʻike lehu, ka mea volatile a me ka density maoli, aia nā koi kūikawā no ka ʻenehana hana nila coke a me nā mea maka.

(2) ʻO ka coke huʻa, me ka hana kemika kiʻekiʻe a me ka haʻahaʻa o ka haumia, hoʻohana nui ʻia i ka ʻoihana hoʻoheheʻe alumini a me ka ʻoihana kalapona.

(3) Coke projectile a i ʻole coke poepoe: He ʻano poepoe kona a he 0.6-30mm ke anawaena. Hana ʻia ia mai ka ʻaila koena kiʻekiʻe-sulfur a me ka asphaltene kiʻekiʻe a hiki ke hoʻohana wale ʻia ma ke ʻano he wahie ʻoihana e like me ka hana mana a me ka sima.

(4) Coke pauka: Hana ʻia ia ma o ke kaʻina hana coking fluidized, me nā ʻāpana liʻiliʻi (0.1-0.4mm ke anawaena), ka nui o ka volatile a me ke coefficient hoʻonui thermal kiʻekiʻe, no laila ʻaʻole hiki ke hoʻohana pololei ʻia i ka hoʻomākaukau ʻana o ka electrode a me ka ʻoihana kalapona.

Wahi a ke ʻano o ka sulfur like ʻole, hiki ke hoʻokaʻawale ʻia i ka coke sulfur kiʻekiʻe (ʻoi aku ka sulfur ma mua o 3%) a me ka coke sulfur haʻahaʻa (ʻoi aku ka sulfur ma lalo o 3%). Hiki ke hoʻohana ʻia ka coke sulfur haʻahaʻa ma ke ʻano he anode paste a me nā anodes i hoʻomoʻa mua ʻia no nā mea kanu alumini a ma ke ʻano he graphite electrodes no nā mea kanu kila. I waena o lākou, hiki ke hoʻohana ʻia ka coke sulfur haʻahaʻa kiʻekiʻe (ʻoi aku ka sulfur ma lalo o 0.5%) e hana i nā electrodes graphite a me nā mea hoʻonui kalapona. Hoʻohana pinepine ʻia ka coke sulfur haʻahaʻa o ke ʻano maʻamau (ʻoi aku ka sulfur ma mua o 1.5%) e hana i nā anodes i hoʻomoʻa mua ʻia. Hoʻohana nui ʻia ka petroleum coke haʻahaʻa no ka hoʻoheheʻe ʻana i ka silicon ʻoihana a me ka hana ʻana i ka anode paste. Hoʻohana nui ʻia ka coke sulfur kiʻekiʻe ma ke ʻano he wahie i nā mea kanu sima a me nā mea kanu mana.

Coke ʻAila i Calcined ʻia:

I ke ʻano o nā electrodes graphite no ka hana kila a i ʻole nā ​​​​​​mea hoʻoheheʻe anode (nā electrodes hoʻoheheʻe) no ka hana alumini a me ka magnesium, i mea e hoʻololi ai i ka petroleum coke (coke ʻōmaʻomaʻo) i nā koi, pono e calcined ka coke ʻōmaʻomaʻo. ʻO ka mahana calcination ma kahi o 1300 ° C, ʻo ke kumu e wehe i nā ʻāpana volatile o ka petroleum coke i ka hiki. Ma kēia ʻano, hiki ke hoʻemi ʻia ka nui o ka hydrogen o ka petroleum coke hana hou ʻia, a hiki ke hoʻomaikaʻi ʻia ke kekelē graphitization o ka petroleum coke, no laila e hoʻomaikaʻi ana i ka ikaika wela kiʻekiʻe a me ke kūpaʻa wela o ka graphite electrode, a hoʻomaikaʻi i ka conductivity uila o ka graphite electrode. Hoʻohana nui ʻia ka calcined coke i ka hana ʻana o nā electrodes graphite, nā huahana paste carbon, ke one daimana, ka ʻoihana phosphorus papa meaʻai, ka ʻoihana metallurgical a me ka calcium carbide, kahi i hoʻohana nui ʻia ai nā electrodes graphite. Hiki ke hoʻohana pololei ʻia ka coke ʻōmaʻomaʻo no ka calcium carbide ma ke ʻano he mea nui o ka calcium carbide me ka ʻole o ka calcination, a e hana i ka silicon carbide a me ka boron carbide ma ke ʻano he mea abrasive. Hiki ke hoʻohana pololei ʻia e like me ke coke no ka umu pahū i ka ʻoihana metallurgical a i ʻole ka pōhaku kalapona no ka uhi ʻana i ka paia o ka umu pahū, a hiki ke hoʻohana ʻia e like me ke coke mānoanoa no ke kaʻina hana hoʻolei.