Njira yopanga N-hexane
Zambiri za hexane zakunja zimagwiritsa ntchito njira zotsatsira ma molecular sieve, monga Richfielcd (Richfield) ndi Watson (Watson) ku United States, pogwiritsa ntchito raffinate yopangidwanso ngati zopangira, pokonzanso mabedi awiri kapena kuposerapo kuti adsorption. Dinani desorption kuti mupange n-hexane.
Ambiri opanga hexane apakhomo amagwiritsa ntchito njira ya hydrogenation distillation, yomwe imagawidwa m'mitundu iwiri:

Choyamba, hydrogenation ndiye kukonza.

Amatchedwanso chisanadze hydrogenation, zopangira ndi mkangano ndi kutentha kuwombola, kufika anachita kutentha, amalowa hydrogenation riyakitala, desulfurization ndi dearomatization anachita pansi pa zochita za chothandizira, zosungunulira mafuta ndi osakaniza wa hydrogen kulowa mu thanki kulekana kwa kulekana. , hydrogen kuchira, zosungunulira mafuta mu fractionation nsanja Dulani mu zomalizidwa. Nthawi zambiri, pambuyo hydrogenation ya zopangira, akadali fractionated ndi kudula mu n-hexane, ndi mitundu yosiyanasiyana ya zosungunulira mafuta. Ubwino wake ndiwakuti zida zonse ndizochepa komanso zatha, kugwiritsa ntchito bwino chilichonse. Choyipa chake ndi chakuti ndalamazo zimakhala zazikulu komanso kugwiritsa ntchito zinthu zambiri.

Chachiwiri, rectification ndiye hydrogenation.

Zomwe zimatchedwanso post-hydrogenation, pa nkhani ya n-hexane, zopangira zimadulidwa koyamba mu hexane yaiwisi ya 66-69 distillation range, chiyero cha hexane yaiwisi chimakhala bwino kwambiri, ndipo popeza gulu la phenyl ndi zomwe zili mu n-hexane, hexane mu hexane yaiwisi Zomwe zili nazo zimachulukitsidwa kwambiri, kenako zimayikidwa ndi hydrodebenzene desulfurization kuti apange n-hexane wapamwamba kwambiri. Ubwino wake ndikuti ndalamazo ndizochepa komanso kugwiritsa ntchito zinthu kumakhala kochepa. Choyipa ndichakuti gawo la unhydrogenated siligwiritsidwa ntchito moyenera.