N-hexane kugadzira maitiro
Mazhinji ekunze hexane kugadzirwa anoshandisa molecular sieve adsorption maitiro, akadai saRichfielcd (Richfield) uye Watson (Watson) muUnited States, vachishandisa reconstituted raffinate seyakagadzirwa, nekudzoreredza mibhedha miviri kana kupfuura yeadsorption. Dzvanya desorption kugadzira n-hexane.
Vazhinji vekumba vanogadzira hexane vanoshandisa iyo hydrogenation distillation process, iyo yakakamurwa kuita marudzi maviri:

Kutanga, hydrogenation ipapo kugadzirisa.

Iyo inozivikanwawo se pre-hydrogenation, iyo mbishi inodziya nekutsinhana kwekushisa, inosvika pakuita tembiricha, inopinda muhydrogenation reactor, desulfurization uye dearomatization reaction pasi pechiito checatalyst, mafuta ekunyungudutsa uye musanganiswa wehydrogen kupinda mutangi rekuparadzanisa. , hydrogen kupora, solvent mafuta muchikamu cheshongwe Cheka kuita zvigadzirwa zvapera. Kazhinji kutaura, mushure mehydrogenation yezvinhu zvakasvibirira, ichiri kupatsanurwa uye kuchekwa kuita n-hexane, uye mamwe marudzi akasiyana emafuta anonyungudutsa. Chakanakira ndechekuti zvese mbishi zvinhu zvakadhindwa uye zvakapera, zvichishandisa zvizere chigadzirwa chimwe nechimwe. Izvo zvakashata ndezvekuti mari yacho yakakura uye kushandiswa kwezvinhu kwakakwira.

Chechipiri, kugadzirisa ipapo hydrogenation.

Iyo inonziwo post-hydrogenation, munyaya ye n-hexane, iyo yakasvibirira inotanga kuchekwa mu crude hexane ye 66-69 distillation range, kuchena kwehexane isina kuchena inovandudzwa zvikuru, uye sezvo boka re phenyl riri. iri mu n-hexane, iyo hexane mu crude hexane Zvinyorwa zvinowedzerawo zvakanyanya, uye zvino zvinoiswa pasi pe hydrodebenzene desulfurization kuti ibudise yemhando yepamusoro n-hexane. Chakanakira ndechekuti mari ishoma uye mashandisirwo emidziyo idiki. Izvo zvisingabatsiri ndezvokuti chikamu cheunhydrogenated hachina kushandiswa zvinobudirira.