Kev Taw Qhia thiab Yam Tseem Ceeb Ntawm Kev Xaiv Catalytic Reduction (SCR) Catalysts
Selective catalytic reduction (SCR) catalysts siv ib tug txo tus neeg sawv cev los xaiv reacts nrog NOx nyob rau hauv flue gas, ua tsis muaj - lom thiab muaj kuab paug- dawb N2 thiab H2O, nyob rau hauv qhov kev txiav txim ntawm ib tug catalyst.
Cov tshuaj tiv thaiv kub txiav txim siab tsis yog tsuas yog cov tshuaj tiv thaiv tus nqi ntawm cov reactants tab sis kuj yog qhov reactivity ntawm SCR catalyst. Feem ntau, qhov kub ntawm cov tshuaj tiv thaiv ntau dua ua rau cov tshuaj tiv thaiv sai dua thiab ua haujlwm catalyst ntau dua, ua rau muaj qhov chaw me me thiab cov reactor ntim rau ib cheeb tsam. Xav txog cov cua sov reactant, kev tswj hwm, thiab cov catalyst qhov kub thiab txias, SCR qhov system kub feem ntau yog teem rau ntawm 320 thiab 420 degree.
Qhov chaw tshaj tawm yog qhov tsim qauv tseem ceeb rau kev xaiv catalytic txo (SCR) catalysts. Nws ntsuas lub sij hawm nyob ntawm cov roj flue (cov roj ntub dej hauv cov txheej txheem) nyob rau hauv lub ntim catalyst, thiab rau qee qhov kev txiav txim siab seb cov reactants puas cuam tshuam tag nrho. Nws tseem cuam tshuam qhov scouring ntawm lub reactor catalyst moj khaum thiab kev sib txhuam poob ntawm cov pa roj flue.
Qhov zoo ntawm flue gas flow qauv txiav txim siab qhov ua tau zoo ntawm cov catalyst. Tus qauv tsim flue gas flow qauv tsis tsuas yog siv cov khoom siv catalyst xwb tab sis kuj txo qis kev sib txhuam. Hauv kev tsim qauv engineering, qhov flue gas flow field yuav tsum tau ua tib zoo xav txog. Cov ntsiab lus txhaj tshuaj ammonia yuav tsum muaj kev kub ntxhov kom ua tiav qhov kev sib xyaw ua ke nrog cov pa roj flue thiab tsim kom pom meej meej meej txog homogeneous ntws cheeb tsam.
