Thaum loading catalysts rau hauv industrial reactors,ceramic pobyog cov khoom tseem ceeb pab ntim khoom. Nyob ntawm lawv txoj haujlwm kev teeb tsa thiab qhov ntau thiab tsawg, lawv ua haujlwm plaub lub luag haujlwm: txhawb nqa lub txaj, faib cov dej, ntws buffering thiab tiv thaiv catalyst, uas cuam tshuam ncaj qha rau kev ua haujlwm ruaj khov thiab catalyst kev pab cuam lub neej.
Loj - lojceramic pobnteg nyob rau hauv qab reactor feem ntau undertake load- bearing support.Catalyst pellets muaj qhov txwv txhua lub zog. Yog tias tso ncaj qha rau ntawm lub reactor grating txhawb phaj, tus kheej - qhov hnyav ntawm cov catalysts sab sauv thiab cov kua dej cuam tshuam yuav tsoo cov catalyst pellets, tsim cov hmoov zoo uas thaiv cov dej ntws. Stacked loj -diameter ceramic npas tsim ib txheej kev txhawb nqa nrog cov voids ruaj khov, sib npaug ntawm qhov hnyav tag nrho ntawm lub txaj catalyst mus rau lub grating kom tsis txhob deformation ntawm cov phaj txhawb. Lub caij no, reserved flow passages stop catalyst particles from to leaking out through the bottom discharge port.
Qib ceramic pob tau nruab rau hauv ntau txheej ua tiav cov kua dej sib txawv.Tom qab pub roj los yog kua xov xwm nkag mus rau lub reactor, channeling thiab maldistribution nquag tshwm sim. Tshaj siab tshaj hauv zos ntws nrawm ua rau lub sijhawm sib cuag ntawm cov khoom noj khoom haus thiab cov catalysts, txo qis kev hloov pauv. Multi- txheej ceramic pob nrog sib txawv particle loj tsim ib tug qauv nrog maj mam hloov void feem. Raws li xov xwm dhau los ntawm cov pob zeb ceramic, cov kua dej tau rov sib cais thiab sib cais kom tshem tawm axial thiab radial flow velocity sib txawv. Feedstock ces ntws los ntawm lub txaj catalyst nyob rau hauv plug flow tej yam kev mob, kom muaj txaus cov tshuaj tiv thaiv tiv tauj nyob rau hauv tag nrho cov catalyst seem thiab txhim kho tag nrho cov conversion nqi.
Ceramic pobcushion kua cuam tshuam thiab thaiv lub sab saum toj catalyst txheej.Siab -ceev pub los ntawm cov kav dej nkag ncaj qha scours saum txaj, yooj yim ntxuav tawm cov catalysts saum npoo thiab ua rau lub txaj hauv zos tawg thiab pulverization. Ib txheej txheej ntawm cov pob zeb ceramic nteg rau saum lub txaj catalyst tsis muaj zog rau qhov cuam tshuam ntawm cov kua dej nkag thiab tsis txhob cuam tshuam cov catalyst pellets los ntawm kev ncaj qha siab - nrawm nrawm. Cov kua dej turbulence tshwm sim los ntawm lub siab thiab ntws fluctuations thaum lub sij hawm pib thiab kaw kuj absorbed los ntawm ceramic pob txheej los tuav ib qho tseem ceeb txaj stability.
Ceramic pobkuj xa thermal homogenization thiab impurity pom.Nyob rau hauv siab - qhov kub thiab txias, cov khoom siv ceramic muaj qhov sib npaug ntawm cov thermal conductivity, txo qhov kub ntawm qhov nruab nrab ntawm lub txaj thiab cov phab ntsa sab nraud thiab txo cov kev pheej hmoo ntawm cov cua sov hauv zos thiab kev ua kom tsis muaj zog. Xeb, vuam slag thiab txheej txheem impurities nqa los ntawm cov txheej txheem xov xwm yog daig los ntawm ceramic pob txheej, tiv thaiv cov kab mob nyuaj los ntawm khawb cov khoom siv hluav taws xob ntawm cov catalysts. Qhov no slows txaj clogging thiab siab poob buildup, txuas ntxiv mus ua hauj lwm cycles thiab txo lub kaw zaus tu.
Hauv cov ntsiab lus, cov khoom siv ceramic tsis koom nrog cov tshuaj tiv thaiv catalytic, tab sis lawv tsim ib qho chaw ruaj khov, zoo ib puag ncig rau cov catalysts. Lawv yog cov tseem ceeb auxiliary packings uas lav ntev - lub sij hawm ruaj khov thiab ua haujlwm tau zoo reactor. Kev xaiv ntawm qhov ntau thiab tsawg ntawm cov pob zeb ceramic thiab cov tuab ntawm txhua txheej txheej yuav tsum raug kho raws li tus txheej txheem ntws, catalyst particle loj thiab reactor qauv tsim.