Catalytic hloov kho yog cov txheej txheem tseem ceeb hauv cov roj av xa khoom ntxiv kev lag luam, feem ntau tsom ntawm kev txhim kho roj av. Ntawm cov txheej txheem ntau yam hloov kho,Nruam Catalyst Kev(CCR) kev hloov kho sawv tawm vim nws ua tau zoo thiab ua haujlwm hauv kev ua cov roj ox octane. Ib qho tseem ceeb ntawm cov txheej txheem no yog cov hloov kho catalalyst, uas ua lub luag haujlwm tseem ceeb hauv kev hloov pauv Naphha mus rau hauv cov roj av roj muaj txiaj ntsig.
Dab tsi yogCCR Reforming?
CCR cov kev hloov pauv yog cov thev naus laus zis niaj hnub uas tso cai rau kev tsim qauv txuas ntxiv ntawm cov txheej txheem ntsuas hluav taws xob. Txoj kev sib piv nrog cov tsoos batch hloov pauv, qhov twg catalyst yog ib txwm muab tshem tawm rau kev tsim dua tshiab. Hauv CCR cov kev hloov kho dua tshiab, cov kev ua lag luam tseem nyob hauv reactor, thiab cov kev tsim qauv tshwm sim hauv ib qho haujlwm sib cais, tso cai rau qhov kev ua haujlwm ruaj khov thiab siab dua. Cov txheej txheem txuas ntxiv no tsis yog txhim kho cov txiaj ntsig ntawm cov roj octane high-octoline tab sis kuj txhim kho cov kev ua haujlwm ntawm kev ua haujlwm tag nrho.
Lub luag haujlwm ntawm catalysts hauv kev hloov kho
Catalysts yog cov tshuaj uas ceev cov tshuaj lom neeg tsis tau noj nyob rau hauv cov txheej txheem. Nyob rau hauv cov ntsiab lus ntawmCCR Reforming, tus catalyst yog qhov tseem ceeb rau ntau yam kev tawm tsam, suav nrog dehydrogenation, isomerization, thiab hydroccking. Cov kev tawm tsam no hloov pauv ncaj ncaj-saw hydrocarbons rau hauv hydrocarbons, uas muaj ntau dua octane ntau dua hauv cov roj av.
Feem ntau cov catalysts feem ntau siv hauv CCR cov kev hloov pauv yog platinum-based catalysts, feem ntau txhawb nqa ntawm alumina. Platinum yog favored vim nws cov hauj lwm zoo thiab xaiv tau hauv kev txhawb nqa cov kev xav tau. Tsis tas li ntawd, kev siv cov khoom siv bifunctional, uas ua ke sib xyaw cov hlau thiab acid paus, tso cai rau kev hloov pauv ntau dua ntawm Naphha mus rau hauv cov khoom siv octive. Cov hlau chaw pab txhawb nqa dej dehydogenation, thaum lub sij hawm cov kua qaub access omerization thiab hydrocacking.
Dab tsi catalyst siv nyob rau hauv reformer?
Hauv CCR kev hloov kho, tusthawj catalaltsiv yog feem ntau yog platinum-alumina catalyst. Cov catalyst no yog tsim qauv los tiv thaiv cov txheej txheem hnyav ntawm cov txheej txheem hloov kho, suav nrog qhov kub thiab ntsuas kub. Lub platinum tivthaiv yog lub luag haujlwm rau kev ua haujlwm catalytic, thaum lub alumina kev txhawb nqa muab cov qauv kev nyab xeeb thiab thaj chaw rau cov kev tawm tsam.
Ntxiv nrog rau platinum, lwm yam hlau xws li rhenium yuav muab ntxiv rau txhim kho cov catalyst kev ua haujlwm. Rhenium tuaj yeem txhim kho cov catalyst qhov tsis kam mus rau kev ua haujlwm thiab nce cov txiaj ntsig tag nrho ntawm cov roj octane. Cov qauv tsim ntawm catalyst tuaj yeem sib txawv raws li cov kev cai tshwj xeeb ntawm cov kev ua kom zoo nkauj thiab cov khoom xav tau cov khoom lag luam tshwj xeeb.
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Reforming catalysts, tshwj xeeb tshaj yog nyob rau hauv cov ntsiab lus ntawm CCR cov kev hloov pauv, yog qhov tseem ceeb rau kev tsim cov roj av muaj roj ntau. Qhov kev xaiv ntawm catalyst, feem ntau yog ib qho nyuaj-alumina tsim, cuam tshuam kev cuam tshuam zoo li kev ua tau zoo thiab ua tau zoo ntawm cov txheej txheem kho kom zoo. Raws li qhov kev thov kom huv si thiab muaj txiaj ntsig zoo dua tau nce, nce qib hauv lub luag haujlwm catalyst Technology yuav ua rau lub luag haujlwm tseem ceeb hauv kev ua kom zoo tshaj plaws hauv roj av. Nkag siab txog cov lus qhuab qhia ntawm cov catalysts thiab lawv cov haujlwm yog qhov tseem ceeb rau cov neeg ua haujlwm ua kom lawv txoj haujlwm thiab ua tau raws li kev lag luam xav tau.
Lub Sijhawm Post: Oct-31-2024