Propylene oxide yog siv ua ib qho khoom siv nruab nrab hauv kev tsim cov polyurethane, antifreeze thiab lwm yam tshuaj lom neeg hauv kev lag luam.lub ntsuas qhov ceev ntawm cov kav dejtau koom ua ke rau hauv cov kab ntau lawm ntawm lub chaw tsim khoom propylene oxide -- Propylene Oxide Plant rau kev tswj hwm qhov tseeb ntawm cov tshuaj tiv thaiv, uas ib qho tseem ceeb reactanthydrogen peroxide (H₂O₂)nws reacts nrog propylene nyob rau hauv lub xub ntiag ntawm ib tug catalyst rau tsim propylene oxide.
Tus nqi ntawm cov tshuaj tiv thaiv, qhov zoo ntawm cov khoom thiab kev ua haujlwm tag nrho tuaj yeem hloov kho los ntawm kev sivlub ntsuas concentration ntawm hydrogen peroxidentawm ntau theem ntawm kev tsim khoom. Lub ntsiab lus tseem ceeb yog nyob ntawm epoxidation reaction, qhov twg propylene reacts nrog hydrogen peroxide (H₂O₂) nyob rau hauv lub xub ntiag ntawm ib tug catalyst (feem ntau yog ib tug tungstate los yog molybdate-based catalyst) los tsim propylene oxide (C₃H₆O) thiab dej (H₂O).
Kev Ntsuas Cov Ntsiab Lus ntawm Kev Tsim Khoom ntawm Propylene Oxide
Cov ntsiab lus tseem ceeb suav nrog cov khoom siv raw, lub thawv tshuaj, kev sib cais thiab kev rov qab los, thiab lwm yam. Cov khoom noj hydrogen peroxide yog qhov tseem ceeb kom ntseeg tau tias muaj cov lus qhia tshwj xeeb. Feem ntau, hydrogen peroxide khaws cia rau hauv daim ntawv concentrated, thiab nws yuav tsum tau diluted ua ntej ua ntxiv lossis tshuaj nrog lwm cov tshuaj.
Tom qab ntawd los rau ntawm lub thawv tshuaj tiv thaiv lossis lub tshuab hluav taws xob. Qhov no yog lwm qhov ntsuas ntawmkev ntsuas qhov concentration ntawm hydrogen peroxideyog li ntawd qhov kev teb rov qab mus raws li qhov xav tau. Ib inline txheej txheem ceev meterlossis lwm yam sensor muaj peev xwm ntsia tau ntawm lub reactor qhov hluav taws xob los saib xyuas lub sijhawm tiag tiag ntawm hydrogen peroxide thaum nws cuam tshuam nrog propylene. Lub ntselub ntsuas qhov ceev hauv onlineua rau muaj kev hloov kho ntawm hydrogen peroxide rau nws qhov kev soj ntsuam tas mus li. Yog tias qhov concentration poob qis sai dhau lossis qhov tshuaj tiv thaiv tsis mus raws li qhov xav tau, nws yog qhov tsim nyog los hloov kho qhov ntws ntawm hydrogen peroxide mus rau hauv lub reactor.
Tom qab ua tshuaj lom neeg, kev sib cais thiab ntxuav cov propylene oxide thiab cov khoom seem, xws li dej thiab hydrogen peroxide uas tsis tau ua tshuaj lom neeg. Piv txwv li, cov hydrogen peroxide ntau dhau ua rau muaj kev pheej hmoo rau kev ruaj khov ntawm ib puag ncig thiab kev nyab xeeb ntawm tib neeg. Kev ntsuas qhov concentration kom raug ua rau kev ntsuas thiab kev ua tiav ruaj khov ua tau raws li cov kev cai lij choj thiab cov cai.
Cov txheej txheem ntsuas ntse ntawm cov ntsiab lus tseem ceeb hauv cov txheej txheem pab tau ntau yam hauv kev tsim khoom. Kev siv cov thev naus laus zis siab heev xws licov ntsuas densitometers online, cov spectrophotometers, thiab cov txheej txheem titration tso cai rau kev saib xyuas lub sijhawm tiag tiag, kev ntsuas qhov concentration kom raug, thiab kev tswj hwm cov txheej txheem zoo dua, thaum kawg ua rau muaj txiaj ntsig zoo dua thiab kev ua haujlwm muaj kev nyab xeeb dua.
Thov hu rauLonnmetercov engineers rau kev sib tham ntxiv txog qhov teeb meem nokab hauv kab lub ntsuas concentration ntawm hydrogen peroxide kom paub seb nws puas siv tau rau koj txoj kab ntau lawm lossis cov nroj tsuag. Thov kom tau txais tus nqi pub dawb tam sim no thiab tau txais tus nqi ntawm lub ntsuas qhov ceev.
Lub sijhawm tshaj tawm: Lub Ib Hlis-17-2025
