Nyob rau hauv lub siab tas li, thaum cov dej cawv-dej sib tov nce mus txog 95.57% (w / w), qhov ntim feem ntau ncav cuag 97.2% (v / v), cov sib tov sib xyaw yog tsim los ntawm qhov concentration, uas txhais tau tias siv txoj kev distillation zoo tib yam tsis tuaj yeem ncav cuag. cawv purity tshaj 97.2% (v/v).
Txhawm rau tsim cov kua dej purity siab, txais yuav hloov pauv siab adsorption (PSA) molecular sieve, nrog 99.5% concentration rau 99.98% (v/v) tom qab lub cev qhuav dej thiab condensation.Piv nrog rau cov tshuaj ternary azeotropic distillation txoj kev, nrog rau lub cev qhuav dej zoo, cov khoom zoo, cov cuab yeej siv siab heev thiab kev siv hluav taws xob tsawg.
Ethanol dehydration molecular sieve adsorption method yog txheej txheem rau nqus dej ntawm pub ethanol.Siv lub molecular sieve ntawm JZ-ZAC, cov dej molecule yog 3A, thiab 2.8A, ethanol molecule yog 4.4A.Vim tias ethanol molecules loj dua dej molecules, dej molecules tuaj yeem adsorbed hauv lub qhov, ethanol molecules tsis tuaj yeem tshem tawm.Thaum cov dej uas muaj ethanol adsorbed zoo huv si los ntawm molecular sieve, lub molecular sieve adsorbs dej qhov chaw, thaum lub ethanol vapor hla lub adsorption txaj thiab ua ib tug ntshiab ethanol khoom.
Yam khoom:JZ-ZAC molecular sieve