Li-parafini tse nang le mela le makala li ka aroloa ke sieve ea molek'hule ea zeolite. Liparafine li na le ts'ebeliso le boleng bo fapaneng ho lik'hemik'hale tsa petrole le lik'hemik'hale tse ntle tse tlase, 'me karohano ea liparafine tse melang le tse nang le makala li ka fihlela katleho e phahameng ea ts'ebeliso ea indasteri le melemo ea moruo.
Ke Hobane'ng ha U Lokela ho Arola Liparafine tsa Linear le Makala?
Liparafine tsa Linear (tse tsejoang hape e le li-alkanes tse tloaelehileng kapa n-parafine) le liparafine tse makala (hape li bitsoa isomeric alkanes kapa-parafine) ke lisebelisoa tsa bohlokoa indastering ea petrochemical, 'me karohano ea tsona e bohlokoa haholo bakeng sa tlhahiso ea libeso tsa boleng bo holimo le lisebelisoa tsa khale tsa lik'hemik'hale.
Bakeng sa liparafine tsa linear, li na le lintlha tse belang tse holimo le linomoro tse tlase tsa octane (anti{0}}ts'ebetso ea ho phatloha). Li loketse haholoanyane joalo ka lisebelisoa tse tala tsa lik'hemik'hale, joalo ka ho qhekella ho hlahisa ethylene le propylene, ho kopanya li-surfactants, ho lokisa li-solvents tse tloaelehileng tsa alkane le lik'hemik'hale tse khethehileng, joalo-joalo.
Bakeng sa liparafine tse nang le makala, li na le lintlha tse tlaase tse belang, linomoro tse phahameng tsa octane, le ho tuka ho feletseng. Li loketse haholoanyane joalo ka likarolo tsa mafura, joalo ka ho kopanya peterole ho eketsa linomoro tsa octane, mafura a sefofane, le mafura a hloekileng, joalo-joalo.
Mokhoa oa ho arola liparafine tsa Linear le Branched?
Joalo ka ha ho tsejoa, li-diameter tse mahlonoko tsa limolek'hule tsa parafine tse melang ke li-angstrom tse 4.9, ha bophara ba parafine e nang le makala bo feta 5 angstrom. Kahoo re ka sebelisa phello ea steric ea mofuta oa 5A zeolite molecular sieves ho arola liparafine tse melang le tse nang le makala.
Liparafine tse tloaelehileng (tse kang n-butane le n-hexane) li na le libopeho tse melang 'me li nyenyane le tse tšesaane ka boholo, kahoo li ka kena masobeng a mofuta oa 5A molecular sieve. 'Me liparafine tsa isomeric (joaloka iso-butane le iso-hexane) li na le libopeho tsa makala, limolek'hule tse kholoanyane kapa libopeho tse sa tloaelehang, 'me ha li khone ho kena masobeng a mofuta oa 5A molecular sieve.
Ha limolek'hule tsa parafine li kena ka har'a li-sieve tsa molek'hule, liparafine tse tloaelehileng li hasoa ke li-sieve tsa molek'hule tsa 5A; liparafine tsa isomeric ha li khone ho kena ka har'a li-pores ebe li lula sebakeng sa khase kapa sa mokelikeli. Ka tsela ena, liparafine tse tloaelehileng le liparafine tsa isomeric li ka aroloa ke li-sieve tsa 5A tsa molek'hule.
Li-Sieve tsa Molek'hule Bakeng sa ho Arola Liparafine tsa Linear le Makala
Ho hlakile hore mofuta oa 5A zeolite molecular sieve o loketse ho arola liparafine tse melang le tse nang le makala. Boholo ba pore ea 5A sieve ea molek'hule ke li-angstroms tse 5 feela. Ka lebaka la boholo ba bona bo boholo le tšitiso e phahameng ea steric, li-parafini tse nang le makala li ke ke tsa kena ka li-pores tsa 5A sieve ea molek'hule 'me kahoo li ke ke tsa phatlalatsoa.
Ho sebelisa mofuta oa 5A zeolite molecular sieve ho arola liparafine tsa linear le branched, e ka hlahisa lihlahisoa tse phahameng tsa parafine tse hloekileng (joaloka n-pentane le n-hexane) hape e ka ntlafatsa khetho ea isomerization.
