1.Technical Principles
Subcritical extraction technology siv subcritical kua (xws li butane, propane, dimethyl ether, tetrafluoroethane, thiab lwm yam) raws li cov extractants nyob rau hauv kaw, tsis muaj oxygen, tsis tshua muaj siab siab hlab ntsha, raws li lub hauv paus ntsiab lus ntawm zoo xws li cov organic teeb meem dissolution, los ntawm lub molecular diffusion. txheej txheem ntawm cov ntaub ntawv extraction thiab extractants nyob rau hauv cov txheej txheem immersion, kom paub txog kev hloov cov roj soluble Cheebtsam nyob rau hauv cov ntaub ntawv khoom rau cov kua extractants. Tom qab ntawd tus neeg sawv cev extraction yog cais los ntawm lub hom phiaj cov khoom los ntawm cov txheej txheem ntawm lub tshuab nqus tsev evaporation, thiab lub hom phiaj cov khoom tau txais.
2.Cov ntawv thov hauv kev ua haujlwm roj rho tawm
High quality extraction:Subcritical extraction cov tswv yim pab kom muaj kev rho tawm siab hauv lub sijhawm luv luv vim tias cov roj ua haujlwm feem ntau muaj cov khoom xyaw tshwj xeeb uas yuav tsum tau ua kom zoo thiab raug rho tawm.
Selective Extraction:Subcritical extraction thev naus laus zis tuaj yeem xaiv cov kuab tshuaj tsim nyog thiab cov txheej txheem rho tawm raws li cov khoom sib txawv, thiaj li ua tiav qhov kev rho tawm ntawm lub hom phiaj ua haujlwm. Qhov no pab khaws cov khoom xyaw nquag hauv cov roj thaum tshem cov impurities uas tsis xav tau.
Kev tiv thaiv ntawm cov khoom xyaw thaum tshav kub kub:Cov khoom xyaw nquag hauv ntau cov roj ua haujlwm muaj kev nkag siab rau cov cua sov, thiab cov txheej txheem thermal ua haujlwm yuav ua rau poob lossis kev puas tsuaj ntawm cov khoom xyaw no. Subcritical extraction thev naus laus zis, uas yog ua los ntawm qhov kub thiab txias, tuaj yeem tiv thaiv cov khoom kub-rhiab heev, yog li txhim kho qhov zoo thiab kev noj haus ntawm cov roj ua haujlwm zoo.
Environmental Protection thiab Sustainability:Subcritical extraction technologies siv cov extractants uas yooj yim rau rov siv dua thiab rov siv dua, txo cov pa phem ib puag ncig. Nyob rau tib lub sijhawm, thev naus laus zis kuj tseem pab txhim kho kev siv cov khoom siv raw, txo cov khoom pov tseg, raws li lub tswv yim ntawm kev tsim ntsuab thiab cov pa roj carbon tsawg.