Uma i-4a ye-molecular sieve ingapakishwanga ngokuqinile noma indawo yokugcina ilimele, indlela yokubhekana nokumuncwa kwayo kwamanzi kanye nomswakama?Namuhla sizochaza umthamo we-adsorption we-molecular sieve kanye nezindlela zokwelashwa zokumuncwa kwamanzi kanye ne-hygroscopicity.
Isisefo se-molecular sinamandla okukhangisa.Ayikwazi ukudonsa amanzi kuphela, kodwa futhi idonsa ukungcola emoyeni.Ngakho-ke, ekukhiqizweni kwezimboni, kuvame ukusetshenziselwa imisebenzi ye-adsorption, ngaleyo ndlela idlala indima enhle ekuhlukaniseni nasekukhangiseni.Yini okufanele siyenze uma isisefo se-molecular 4a sigcinwe ngendlela engafanele noma simanziswe kakhulu ngesikhathi sokusetshenziswa?
1. Valai-valve yokufaka umbhoshongo eyinhloko, vele ushintshe izisefo zamangqamuzana zamathangi amabili ukuze uthole i-adsorption, futhi usebenzise umoya ongemuva kwezisefo zamangqamuzana ngaphandle kwamanzi ukuze uvuselele izisefo zamangqamuzana.Nokho, lapho izisefo zamangqamuzana ezingenamanzi zishintshwa ukuze zisebenze, amanzi angemva kwazo azongena ezisefweni zamangqamuzana ngaphandle kwamanzi.Lezi zisefo ezimbili zamangqamuzana zombili ziqukethe amanzi, bese zivuselelana.Ngokuvuselelwa kwe-adsorption, okuqukethwe kwamanzi kuyehla, futhi ekugcineni kufinyelele ukukhangiswa ngasikhathi sinye.
2.Ngqoukufudumeza nokomisa 4a isisefo samangqamuzana ukuyiqeda amanzi ngokushesha ngangokunokwenzeka futhi ubuyisele amandla ayo okukhangisa;Kodwa-ke, ngemva kokuba inani elikhulu lamanzi lingena ku-sieve yamangqamuzana, lapho usebenzisa le ndlela engenhla ukuvuselela, zombili izisefo zamangqamuzana zizokhiqiza inani elikhulu lamanzi, zombili zizovuselela futhi ekugcineni zilahlekelwe amandla azo okukhangisa.Isizathu siwukuthi: ngemva kokungena kwamanzi amaningi ku-zeolite, amanzi asabela nge-zeolite, futhi amanzi ashintsha kusuka esimweni samahhala kuya emanzini e-crystal ye-zeolite.Ngisho noma izinga lokushisa lokuvuselela lingama-degree angu-200, amanzi e-crystal awakwazi ukususwa, futhi umsebenzi we-adsorption we-zeolite ungabuyiselwa kuphela ngemva kokuba ubuyiselwe esithandweni ngamadigri angu-400 ngumenzi!
Ngakho-ke, lapho isihlungi se-molecular sithatha amanzi endaweni enkulu futhi sithinteka ngomswakama, ukusebenza kuzomiswa ngokushesha futhi ukuvuselelwa kuzokwenziwa.Uma i-adsorption ingakwazi ukubuyiselwa ngalezi zindlela ezimbili ezingenhla, kuzothintwa umenzi ngokushesha okukhulu ukuze kusetshenziswe kabusha ukubala.
4a Ukwenza kusebenze isisefo se-molecular kanye nendlela yokuvuselela:
1. 4a Ukushintsha kwezinga lokushisa le-zeolite, okungukuthi “izinga lokushisa eliguquguqukayo”
I-adsorbate isuswa ngokushisa isihlungo se-molecular.Ngokuvamile, izisefo ze-molecular ezisetshenziswa embonini zishisisa futhi zishiselwe kabusha, zihlanjululwe cishe ku-200 ℃, futhi i-adsorbed adsorbate iyakhishwa.
2. Shintsha ukucindezela okuhlobene kwe-4a zeolite
Okusho ukuthi, kunqubo ye-gas phase adsorption, indlela eyisisekelo ukugcina izinga lokushisa le-adsorbent lingashintshi, futhi ususe i-adsorbate ngokusebenzisa i-decompression kanye nokushaywa emuva kwegesi ye-inert.
Enqubweni yokuvuselelwa kwe-4a ye-molecular sieve, ukunakwa kufanele kukhokhwe ukuze kugwenywe inani elikhulu lokungena kwamanzi, ukusebenzisana phakathi kwamanzi nesihlungo samangqamuzana, nokuguqulwa kwamanzi kusuka esimweni samahhala kuya esimweni se-crystalline.Ngisho noma izinga lokushisa lokuvuselela lifinyelela ku-200 ℃, kunzima ukususa amanzi acwebile.Uma isikhathi sokudla sidlula imizuzu engu-10, futhi amabala amanzi asobala angabonakala ngemva kokukhishwa kwegesi yokuvuselela umoya, kungahlulelwa ukuthi isihlungi samangqamuzana sidinga ukubuyiselwa esithandweni ngaphandle kokuvuselelwa.
Isikhathi sokuthumela: Nov-23-2022