Zeolite molecular sieves yog qhov tseem ceeb hauv kev ua ntej -purification txheej txheem ntawm cryogenic huab cua sib cais kev lag luam. Cov cua kwj yuav tsum dhau los ntawm lub txaj molecular sieve ua ntej nkag mus rau hauv lub ntsiab cua cais chav tsev, kom tshem tawm cov impurities uas yuav cuam tshuam rau cov txheej txheem cryogenic lossis cuam tshuam rau cov khoom zoo.
Cryogenic Air Separation Technology yog dab tsi?
Cryogenic huab cua sib cais tshuab yog raws li qhov sib txawv ntawm cov ntsiab lus kub ntawm cov khoom siv roj, ua ntej cua txias rau qhov kub tsis tshua muaj siab (qis dua li qhov kub ntawm txhua qhov roj), feem ntau qis dua -180 degree, thiab tom qab ntawd siv qhov sib txawv ntawm qhov kub thiab txias rau distilled thiab cais cov roj.
Cryogenic huab cua sib cais tshuab yog dav siv nyob rau hauv steel, tshuaj, electronics, kho mob, aerospace thiab lwm yam teb. Nws yog txoj hauv kev tseem ceeb rau kev lag luam roj sib cais, thiab tam sim no yog txoj hauv kev zoo tshaj plaws thiab muaj txiaj ntsig zoo rau kev tsim cov pa oxygen, nitrogen, argon thiab tsawg gases.
Cryogenic Distillation Cua Sib cais txheej txheem
Cryogenic distillation cua sib cais txheej txheem feem ntau suav nrog rau cov kauj ruam hauv qab no:
Huab cua compression: Ua kom cov huab cua los ntawm ntau theem ntawm compressors, muab lub siab tsim nyog rau cua txias thiab tom qab sib cais. Lub siab ntau tuaj yeem yog 0.5Mpa ~ 0.8Mpa (cov cuab yeej siab ib txwm), lossis 3Mpa ~ 6Mpa (cov cuab yeej siv siab).
Ua ntej-txias: Txo cov cua kub mus rau qhov chaw liquefaction los ntawm lub tshuab txias (feem ntau yog cov dej txias los yog cov tub yees), kwv yees li 5℃mus rau 10 degree, txo lub zog yuav tsum tau ntawm cov cua sib cais tom qab cryogenic.
Ua ntej-purification: Siv cov adsorption towers (loaded nrog molecular sieves, activated alumina thiab lwm yam adsorbents) kom tshem tawm impurities xws li ya raws, carbon dioxide thiab hydrocarbons, tiv thaiv qis - kub freezing thiab clogging ntawm cov khoom, kom muaj kev ruaj ntseg ntawm cov txheej txheem cryogenic.
Kev sib sib zog nqus cua txias: Cov cua lim dej sib pauv cua sov nrog cov cua txias, maj mam txias mus rau qhov kub liquefaction, kwv yees li -170℃txog -180 degree, thiab qee cov pa hauv huab cua yog liquefied.
Distillation cais: Cov kab siab siab cais tawm cov pa oxygen- cov kua nplua nuj thiab cov nitrogen- cov kua nplua nuj. Siab -purity oxygen thiab nitrogen yog tau los ntawm qis qis qis tom qab distillation ntxiv. Thiab cov roj argon yog coj tawm ntawm nruab nrab ntawm cov kab qis qis.
Gas extraction and storage: Oxygen, nitrogen and argon are reheated to gas and and then output. Some are liquefied for storage, such as liquid oxygen and liquid nitrogen. However, high purity oxygen (>99.5%), nitrogen (>99.9%), and argon (>99.9%) muaj nyob rau ntawm kev thov.
Molecular Sieves rau Cryogenic cua sib cais
13X-APG Zeolite Molecular Sieve: Nws yog tsim tshwj xeeb rau huab cua cryogenic huab cua sib cais kev lag luam, muaj feem xyuam rau txhua qhov loj ntawm huab cua cryo- cov khoom sib cais. 13X-APG muaj lub zog xaiv adsorption muaj peev xwm rau dej thiab carbon dioxide.
13X-HP Zeolite Molecular Sieve: Nws muaj cov pa oxygen siab thiab nitrogen sib cais kev ua tau zoo thiab cov pa oxygen txaus, uas feem ntau yog siv rau cov pa tsim hluav taws xob los siv cov pa oxygen thiab nitrogen sib cais, ua rau kev lag luam thiab kev kho mob oxygen enrichment.
13X-APG-III Zeolite Molecular Sieve: Nws yog hom qib siab ntawm 13X-APG. Kev ua haujlwm adsorption ntawm zeolite 13X-APG-III yog 60% ~ 70% siab dua li ntawm 13X-APG. Txawm tias muaj cov pa roj carbon dioxide tsawg, lub peev xwm adsorption ntawm 13X{{15}APG-III tseem ua tau zoo.
13X-APG-V Zeolite Molecular Sieve: Kev ua haujlwm adsorption ntawm 13X-APG-V yog ntau dua ob npaug ntawm 13X-APG, thiab ntau dua 1.4 npaug ntawm 13X-APG-III. 13X-APG-V molecular sieve yog cov khoom tseem ceeb hauv kev lag luam cryogenic huab cua sib cais, thiab nws cov ntsuas kev ua tau zoo yog qhov zoo tshaj rau nws cov neeg ua ntej.
