Momwe mungasinthirenso 4a molecular sieve pambuyo pa kuyamwa kwa chinyezi

Pamene 4a molekyulu sieve si yodzaza mwamphamvu kapena malo osungira awonongeka, momwe mungathanirane ndi kuyamwa kwake kwamadzi ndi chinyezi?Lero tifotokoza mwatsatanetsatane kuchuluka kwa ma adsorption a molecular sieve komanso njira zochizira mayamwidwe amadzi ndi hygroscopicity.

Sieve ya mamolekyulu imakhala ndi mphamvu yolumikizira mwamphamvu.Iwo sangakhoze kokha kuyamwa madzi, komanso kuyamwa zosafunika mu mlengalenga.Chifukwa chake, popanga mafakitale, nthawi zambiri amagwiritsidwa ntchito popanga zotsatsa, motero amatenga gawo labwino pakupatukana ndi kutsatsa.Kodi tiyenera kuchita chiyani ngati sieve ya 4a ya molekyulu yasungidwa molakwika kapena yanyowa kwambiri pakagwiritsidwa ntchito?

1. Tsekanivalavu yaikulu ya tower tower, ingosinthani masieve a mamolekyu a matanki awiri kuti adsorption, ndikugwiritsa ntchito mpweya kumbuyo kwa sieve za maselo opanda madzi kuti mupangenso masieve a maselo.Komabe, pamene masefa a mamolekyu opanda madzi asinthidwa kuti agwire ntchito, madzi omwe ali kumbuyo kwawo amalowa m’masefa opanda madzi.Sieve ziwiri za ma molekyulu zonse zili ndi madzi, kenako zimasinthananso.Ndi kusinthika kwa adsorption, zomwe zili m'madzi zimachepa, ndipo pamapeto pake zimakwaniritsa kutsatsa munthawi yomweyo.

2.MwachindunjiKutenthetsa ndi kuyanika 4a molecular sieve kuti muchepetse madzi m'thupi mwachangu momwe mungathere ndikubwezeretsanso mphamvu yake ya adsorption;Komabe, madzi ambiri atatha kulowa mu sieve ya maselo, akamagwiritsa ntchito njira yomwe ili pamwambayi kuti abwererenso, ma sieve onse a molekyulu adzapanga madzi ambiri, onse awiri adzayambiranso ndipo potsirizira pake amataya mphamvu zawo zokopa.Chifukwa chake ndi: pambuyo pa madzi ochuluka amalowa mu zeolite, madzi amachitira ndi zeolite, ndipo madzi amasintha kuchokera ku ufulu waulere kupita ku madzi a kristalo a zeolite.Ngakhale kutentha kwa kusinthika ndi madigiri a 200, madzi a kristalo sangathe kuchotsedwa, ndipo ntchito ya adsorption ya zeolite ikhoza kubwezeretsedwa pambuyo pobwezeretsedwa ku ng'anjo pa madigiri 400 ndi wopanga!

Choncho, pamene sieve ya maselo imatenga madzi m'dera lalikulu ndipo imakhudzidwa ndi chinyezi, ntchitoyi idzayimitsidwa nthawi yomweyo ndipo kukonzanso kudzachitika.Ngati ma adsorption sangathe kubwezeretsedwa ndi njira ziwirizi, wopanga adzalumikizidwa posachedwa kuti akonzenso calcination.

4a Kuyambitsa sieve ya mamolekyulu ndi njira yosinthiranso:

1. 4a Kusintha kwa kutentha kwa zeolite, kutanthauza "kutentha kosinthika"

The adsorbate amachotsedwa ndi kutentha maselo sieve.Nthawi zambiri, ma sieve a mamolekyulu omwe amagwiritsidwa ntchito m'makampani amatenthedwa ndi kutenthedwanso, kutsukidwa mpaka pafupifupi 200 ℃, ndipo adsorbed ya desorbed imachotsedwa.

2. Sinthani kupanikizika kwachibale kwa 4a zeolite

Ndiko kuti, mu njira ya gasi gawo adsorption, njira yaikulu ndi kusunga kutentha kwa adsorbent mosalekeza, ndi kuchotsa adsorbate kupyolera decompression ndi kumbuyo kuwomba mpweya inert.

Pakukonzanso kwa 4a molecular sieve, chidwi chiyenera kulipidwa kuti tipewe kuchuluka kwa madzi olowa, kugwirizana pakati pa madzi ndi sieve ya maselo, ndi kusintha kwa madzi kuchokera ku free state kupita ku crystalline state.Ngakhale kutentha kubadwanso kufika 200 ℃, n'zovuta kuchotsa madzi crystalline.Ngati nthawi yodyetsera idutsa mphindi 10, ndipo madontho owoneka bwino amadzi amatha kuwoneka pambuyo potulutsa mpweya wotsitsimutsa, zitha kuweruzidwa kuti sieve ya molekyulu iyenera kubwezeredwa ku ng'anjo popanda kusinthika.