Ha ethanol dehydration, zeolite molecular sieve li sebelisoa haholo ho hlola azeotropic point limitation, le ho hlahisa anhydrous ethanol kapa high purity ethanol ka mokelikeli-mokhahlelo kapa khase{1}}mekhahlelo ea mokhahlelo. Theknoloji ena e sebelisoa haholo ho bioethanol, meriana, lijo le liindasteri tse ling tsa lik'hemik'hale.
Hobaneng ha Ethanol e Lokela ho Felloa ke Metsi?
Ts'ebetsong ea tlhahiso, metsi a hlahisoa ka mokhoa o ke keng oa qojoa ha ethanol e fumanoa. Ethanol e etsa motsoako oa azeotropic le metsi, o ke keng oa feta 95.6% tlas'a maemo a tloaelehileng a ho ntša metsi.
'Me lits'ebetsong tsa indasteri, bohloeki bo phahameng ba ethanol hangata ke tlhokahalo e hlokahalang. Ka hona, ethanol dehydration kapa ethanol purification e hlokahala ho tlōla meeli ea azeotropic le ho fumana sehlahisoa sa ho qetela se hloekisitsoeng haholoanyane.
Zeolite Molek'hule Sieve Bakeng sa Ethanol Dehydration
Mofuta oa 3A zeolite molecular sieve e totobalitsoe ka dehydration ea ethanol, ka ho khetheha e bapatsa limolek'hule tsa metsi a polar mme e batla e se na adsorption ho limolek'hule tsa ethanol, mme ke khetho ea pele ea ho felloa ke metsi ethanol.
Bophara ba molek'hule ea metsi ke hoo e ka bang 2.8 Å, ha bophara ba molek'hule ea ethanol e ka ba 4.4 Å, kahoo li-micropores (tse nang le bophara ba hoo e ka bang 3Å) tsa 3A zeolite limolek'hule tsa sieve li lumella limolek'hule tsa metsi ho kena likanaleng tsa adsorption, empa li leleka limolek'hule tse khōloanyane tsa ethanol. Ka hona, sieve ea molek'hule ea 3A e ka khetha metsi ka mokhoa o ikhethileng, 'me qetellong ea fumana ethanol e hloekileng.
Molek'hule Sieve Ethanol Dehydration Process
Ho sebelisa sefefo sa limolek'hule ho tlosa metsi ho fihla boemong ba PPM hajoale ke e 'ngoe ea litheknoloji tse seng li hōlile ka ho fetisisa le tse sebetsang hantle indastering ea ho felloa ke metsi ka ethanol. Ha ho bapisoa le mekhoa e meng ea ethanol dehydration, sieve ea molek'hule e na le melemo e mengata ea moruo le ea tikoloho.
TSA dehydration process: Mokelikeli oa ethanol oa mokelikeli o feta betheng ea adsorption, e futhumatsa bakeng sa ho senya le ho tsosolosoa. E loketse lits'ebetso tse nyane le tse mahareng-'me hangata e sebelisoa lits'ebetsong tse nang le li-batch operations le li-cycles tse telele tsa tlhahiso.
PSA dehydration process: khase ethanol ea khase e kena tsamaisong ea adsorption tlas'a khatello. Nakong ea khatello ea maikutlo, metsi a lokolloa, a tsosolosa sieve ea molek'hule. E loketse-mekhoa e meholo ea ho felloa ke metsi ethanol ea mafura a indasteri e hlokang tlhahiso e tsoelang pele.
Molek'hule Sieve Melemo Bakeng sa Ethanol Dehydration
Bophahamo ba theknoloji: Setsi sa ho felloa ke metsi ka molek'hule se na le matla a bonolo le litšenyehelo tse tlase tsa ho kenya. Li-sieve tsa limolek'hule li bonolo ho tsosolosoa, 'me li na le bophelo bo bolelele ba tšebeletso, tse ka nolofalletsang tlhahiso e tsoelang pele.
Ts'ebetso le tlhokomelo: Setsi sa ho felloa ke metsi ka molek'hule se ka etsoa ka litora tse peli kapa litora tse ngata bakeng sa phetisetso e 'ngoe le nchafatso. E na le taolo ea boiketsetso, ts'ebetso e bonolo le tlhokomelo e bonolo.
Bohloeki le katleho: Bohloeki ba sehlahisoa sa ho qetela sa ethanol bo ka fihla ho 99.5% ~ 99.9% (anhydrous ethanol). Theknoloji ea ho felloa ke metsi ka molek'hule e fetohile tekanyetso ea indasteri bakeng sa tlhahiso ea ethanol ea anhydrous, e khothalletsang lintlafatso tse tala indastering ea biofuel le lik'hemik'hale.
Botsoalle ba moruo le tikoloho: Ts'ebetso eohle ha e na li-additives tse chefo, ha ho na litšila, tse bolokang matla le ho ntlafatsa haholo ts'ebetso ea ho ntša metsi 'meleng ha e bapisoa le mekhoa ea setso.
