Kwayoyin sievesabubuwa ne masu mahimmanci don rabuwa da iskar gas da ruwa da tsarkakewa a cikin masana'antu daban-daban. Su ne crystalline metalloaluminosilicates tare da uniform pores cewa selectively adsorb kwayoyin dangane da girman da siffar. Themasana'antu tsari na kwayoyin sievesya ƙunshi matakai masu rikitarwa da yawa don tabbatar da samar da kayayyaki masu inganci tare da takamaiman girman pore da kaddarorin.
Samar da sieves na ƙwayoyin cuta yana farawa tare da zaɓin albarkatun ƙasa, gami da sodium silicate, alumina da ruwa. Wadannan kayan suna gauraye daidai gwargwado don samar da gel mai kama da juna, wanda aka sanya shi zuwa tsarin haɗin hydrothermal. A cikin wannan mataki, gel yana mai tsanani zuwa yanayin zafi a gaban abubuwan alkaline don inganta tsarin tsarin crystal tare da pores iri ɗaya.
Mataki na gaba mai mahimmanci a cikin tsarin masana'antu shine musayar ion, wanda ya ƙunshi maye gurbin ions sodium a cikin tsarin crystal tare da wasu cations kamar calcium, potassium ko magnesium. Wannan tsarin musanya ion yana da mahimmanci don daidaita aikin sieves na ƙwayoyin cuta, gami da ƙarfin talla da zaɓi. Nau'in cation da aka yi amfani da shi don musayar ion ya dogara da takamaiman buƙatun aikace-aikacen sieve kwayoyin halitta.
Bayan musanya ion, sives ɗin kwayoyin suna yin jerin matakan wankewa da bushewa don cire duk wani ƙazanta da sauran sinadarai daga tsarin samarwa. Wannan yana tabbatar da cewa samfurin ƙarshe ya cika ƙaƙƙarfan ƙa'idodin tsabta da ake buƙata don aikace-aikacen masana'antu. Bayan an gama aikin wanke-wanke da bushewa, ana kirga sifukan kwayoyin a yanayin zafi mai zafi don daidaita tsarin crystal da cire duk wani abu da ya rage.
Mataki na ƙarshe a cikin tsarin masana'anta ya haɗa da kunna sieves na ƙwayoyin cuta don shirya su don aikace-aikacen talla. Wannan tsarin kunnawa yawanci ya ƙunshi dumamasieve kwayoyina yanayin zafi mai zafi don cire danshi da haɓaka abubuwan tallan sa. Tsawon lokaci da zafin jiki na tsarin kunnawa ana sarrafa su a hankali don cimma girman pore da ake so da yanki na sieve kwayoyin.
Siffofin kwayoyin halitta suna samuwa a cikin girman pore daban-daban, ciki har da 3A, 4A da 5A, kowannensu ya dace da takamaiman aikace-aikace. Misali,3A Sives na kwayoyinyawanci ana amfani da su don bushewar iskar gas da ruwa, yayin da4A da 5A sivesAn fi so don haɗa manyan ƙwayoyin cuta da kuma cire ƙazanta kamar ruwa da carbon dioxide.
A taƙaice, kera sieves na ƙwayoyin cuta wani tsari ne mai sarƙaƙƙiya kuma ƙaƙƙarfan tsari wanda ya ƙunshi matakai masu mahimmanci da yawa, gami da haɗaɗɗun ruwa, musayar ion, wankewa, bushewa, ƙirƙira, da kunnawa. Ana sarrafa waɗannan matakan a hankali don samarwakwayoyin sievestare da kaddarorin da aka keɓance da girman pore don saduwa da buƙatun masana'antu daban-daban kamar su petrochemical, Pharmaceutical da sarrafa iskar gas. Babban ingancikwayoyin sieves kerarreta mashahuran masana'antun suna taka muhimmiyar rawa wajen cimma ingantaccen tsarin rabuwa da tsarkakewa a cikin aikace-aikacen masana'antu daban-daban.
Lokacin aikawa: Afrilu-19-2024