Kaʻina hana N-hexane
ʻO ka hapa nui o ka hana hexane haole e hoʻohana ana i nā kaʻina adsorption molecular sieve adsorption, e like me Richfielcd (Richfield) a me Watson (Watson) ma ʻAmelika Hui Pū ʻIa, me ka hoʻohana ʻana i ka raffinate i hoʻohui ʻia ma ke ʻano he kumu, ma ka hana hou ʻana i ʻelua mau moena a ʻoi aku paha no ka adsorption. E kaomi i ka desorption e hana i ka n-hexane.
Hoʻohana ka hapa nui o nā mea hana hexane home i ke kaʻina distillation hydrogenation, i māhele ʻia i ʻelua ʻano:

ʻO ka mua, hydrogenation a laila hoʻoponopono.

ʻIke ʻia hoʻi he pre-hydrogenation, hoʻomehana ʻia ka mea maka e ka hoʻololi wela, hiki i ka mahana hopena, komo i ka reactor hydrogenation, desulfurization a me ka dearomatization reaction ma lalo o ka hana o ka catalyst, ka ʻaila solvent a me ka hui hydrogen e komo i ka pahu hoʻokaʻawale no ka hoʻokaʻawale. , hydrogen recovery, solvent oil into the fractionation tower E ʻoki i nā huahana i hoʻopau ʻia. ʻO ka mea maʻamau, ma hope o ka hydrogenation o nā mea maka, ua hoʻokaʻawale ʻia a ʻoki ʻia i loko o ka n-hexane, a me nā ʻano ʻano ʻē aʻe o ka ʻaila solvent. ʻO ka pōmaikaʻi ʻo ia ka dearomatized a pau nā mea maka, e hoʻohana piha ana i kēlā me kēia huahana. ʻO ka hemahema ʻo ia ka nui o ka hoʻopukapuka kālā a he kiʻekiʻe ka hoʻohana waiwai.

ʻO ka lua, hoʻoponopono a laila hydrogenation.

Hoʻomaopopo pū ʻia ʻo post-hydrogenation, i ka hihia o ka n-hexane, ʻoki mua ʻia ka mea maka i loko o ka hexane crude o ka 66-69 distillation range, ua hoʻomaikaʻi maikaʻi ʻia ka maʻemaʻe o ka hexane crude, a no ka mea ʻo ka hui phenyl. i loko o ka n-hexane, ka hexane i loko o ka hexane crude Hoʻonui nui ʻia ka ʻike, a laila hoʻokau ʻia i ka desulfurization hydrodebenzene e hana i ka n-hexane kiʻekiʻe. ʻO ka pōmaikaʻi ʻo ia ka liʻiliʻi o ka hoʻopukapuka kālā a me ka liʻiliʻi o ka hoʻohana waiwai. ʻO ka hemahema, ʻaʻole i hoʻohana pono ʻia ka ʻāpana unhydrogenated.