He ʻano coke i loaʻa ma ka lohi ʻana o ka ʻaila i koe.ʻO ke kumu he ʻano kalapona i kālai ʻia ʻāpana.He ʻeleʻele i ka waihoʻoluʻu a me ka porous, ma ke ʻano o nā granules i hoʻopaʻa ʻia, ʻaʻole hiki ke hoʻoheheʻe ʻia.ʻO ka haku mele ka nui o ke kalapona, i kekahi manawa he wahi liʻiliʻi o ka hydrogen, nitrogen, sulfur, oxygen a me kekahi mau mea metala, a i kekahi manawa me ka wai.Hoʻohana nui ʻia i ka metallurgy, ʻoihana kemika a me nā ʻoihana ʻē aʻe e like me nā electrodes a i ʻole nā ​​​​mea maka no ka hana ʻana i nā huahana kemika.

ʻOkoʻa ka morphology o ka petroleum coke me ke kaʻina hana, nā kūlana hana a me ke ʻano o ka hānai.ʻO ka coke aila i hana ʻia mai ka hale hana ʻaila coke i kapa ʻia he coke ʻōmaʻomaʻo, aia kekahi mau mea hoʻoheheʻe o nā pūhui hydrocarbon ʻole.Hiki ke hoʻohana ʻia ka coke ʻōmaʻomaʻo e like me ka coke petroleum grade fuel.Pono e hoʻopili ʻia nā electrodes i hoʻohana ʻia i ka hana kila i ka wela kiʻekiʻe e hoʻopau i ka carbonization a hoʻemi i ka mea volatile i ka liʻiliʻi.

ʻO ka hiʻohiʻona o ka coke i hana ʻia ma ka hapa nui o nā hale hana coke petroleum he ʻeleʻele-ʻeleʻele porous paʻa paʻa ʻole.Kapa ʻia kēia ʻano coke he sponge coke.ʻO ke ʻano lua o ka coke petroleum me ka maikaʻi ʻoi aku ka maikaʻi i kapa ʻia ʻo needle coke, ʻoi aku ka maikaʻi no nā electrodes ma muli o kona haʻahaʻa haʻahaʻa uila a me ka hoʻonui ʻana i ka wela.ʻO ke kolu o nā ʻano coke ʻaila paʻa i kapa ʻia ʻo shot coke.ʻO ke ʻano o kēia coke e like me ka projectile, liʻiliʻi ka ʻili a ʻaʻole maʻalahi i ka coke, no laila ʻaʻole hoʻohana nui ʻia.

Lawe ʻo Petroleum coke i ka ʻaila koʻikoʻi a i ʻole ka aila kaumaha ʻē aʻe ma hope o ka hoʻoheheʻe ʻana i ka aila ma ke ʻano he mea maka, a hele i loko o ka umu ahi o 500 ℃ ± 1 ℃ i ka umu wela ma ke kahe kahe kiʻekiʻe, no laila e hoʻokō ʻia nā hopena a me ka condensation i loko o ka hale kiaʻi coke, a laila hoʻomāʻalili ʻia ka coke no kekahi manawa.Hoʻopuka ka coking a me ka decoking i ka petroleum coke.