Hydrotreating catalystsua lub luag haujlwm tseem ceeb hauv kev ua kom zoo ntawm cov khoom siv roj av, tshwj xeeb hauv hydrodesulfurization (HDS) ntawm naphtha, vacuum gas oil (VGO) thiab ultra-low sulfur diesel (ULSD). Cov catalysts no tseem ceeb heev rau kev tshem tawm sulfur, nitrogen thiab lwm yam impurities los ntawm cov roj crude feem, yog li txhim kho qhov zoo thiab ib puag ncig ua raws li cov khoom kawg. Kom nkag siab qhov tseem ceeb ntawmhydrotreating catalysts, nws yuav tsum tau delve rau hauv lub tswvyim ntawm hydrotreating thiab lub luag hauj lwm ntawm catalysts nyob rau hauv tus txheej txheem.
Dab tsi yog hydrotreating catalyst?
Hydrotreating catalysts yog cov khoom uas txhawb cov tshuaj tiv thaiv kev cuam tshuam rau hauv hydrotreating ntawm crude roj feem. Hydrotreating yog hais txog cov txheej txheem catalytic cuam tshuam nrog kev siv hydrogen kom tshem tawm cov impurities thiab txhim kho cov khoom zoo ntawm ntau yam roj av. Lub ntsiab hom ntawmhydroprocessing muaj xws li hydrotreating, hydrocracking, thiabhydrofinishing, txhua qhov xav tau tshwj xeeb catalysts haum rau qhov xav tau cov tshuaj tiv thaiv.
Naphtha Hydrotreating Catalyst
Naphtha hydrotreating suav nrog tshem cov sulfur, nitrogen thiab lwm yam impurities kom ua tau raws li cov kev cai ib puag ncig nruj thiab txhim kho octane zoo ntawm cov khoom. Catalysts siv nyob rau hauvnaphtha hydrotreatingFeem ntau yog ua los ntawm cov hlau xws li cobalt, molybdenum thiab nickel txhawb nqa ntawm alumina lossis lwm yam khoom siv hauv cheeb tsam siab. Cov catalysts txhawb hydrogenation thiab desulfurization cov tshuaj tiv thaiv los tsim cov sulfur tsawg, high-octane naphtha haum rau kev sib xyaw rau hauv roj av.
VGO HDS
Lub tshuab nqus tsev roj(VGO) yog ib qho tseem ceeb feedstock rau ntau yam ntawm cov txheej txheem downstream, suav nrog fluidized txaj catalytic cracking (FCC) thiab hydrocracking. Txawm li cas los xij, VGO feem ntau muaj cov sulfur thiab nitrogen ntau, uas yuav tsum tau txo kom tau raws li cov khoom specifications. Hydrotreating catalysts tsim tshwj xeeb rauVGO HDStau ua tib zoo tsim los tiv thaiv kev ua haujlwm hnyav thiab txhawb kev tshem tawm cov sulfur thiab nitrogen tebchaw, ua rau kom huv, muaj txiaj ntsig VGO rau kev ua haujlwm ntxiv.
Vim yog cov qauv emission nruj, ultra-low sulfur diesel (ULSD) yog cov khoom tseem ceeb hauv kev lag luam niaj hnub refining. Kev tsim khoom ntawm ULSD suav nrog hydrotreating kom txo cov ntsiab lus sulfur mus rau qib qis. ULSD HDS catalysts muaj kev xaiv zoo rau desulfurization thaum txo qis hydrogenation ntawm lwm cov khoom, kom ntseeg tau tias yuav tsum muaj cov khoom zoo thiab ua tau raws li cov kev cai tswj hwm.
Lub luag haujlwm ntawm catalyst
Nyob rau hauv tag nrho cov txheej txheem hydrotreating no, catalysts ua lub luag haujlwm tseem ceeb hauv kev txhawb nqa cov kev xav tau thaum tswj kev ruaj khov thiab ua haujlwm ntev. Kev xaiv ntawm catalyst formulation, nrog rau hom thiab concentration ntawm active hlau thiab cov ntaub ntawv txhawb nqa, ho cuam tshuam rau efficiency thiab selectivity ntawm hydrotreating cov tshuaj tiv thaiv. Tsis tas li ntawd, kev nce qib hauv kev siv tshuab catalyst, xws li kev tsim cov txheej txheem tshiab ntawm cov hlau txhawb nqa thiab txhim kho cov ntaub ntawv txhawb nqa, txuas ntxiv txhim kho cov kev ua tau zoo thiab kev ua haujlwm ntev ntawm hydroprocessing catalysts.
nyob rau hauv xaus
Hydrotreating catalystsyog ib qho tseem ceeb rau kev tsim cov khoom huv si, cov khoom siv roj av zoo dua. Raws li kev tswj hwm ib puag ncig dhau los ua nruj dua, qhov xav tau kom muaj txiaj ntsig zoo thiab xaiv cov catalysts hauv cov txheej txheem hydrotreating txuas ntxiv mus. Kev tshawb fawb tsis tu ncua thiab kev txhim kho ua haujlwm hauv catalyst thev naus laus zis txhawm rau txhim kho kev ua tau zoo thiab kev ruaj khov ntawm hydroprocessing catalysts, kom ntseeg tau tias yav tom ntej ntawm kev tsim hluav taws xob zoo ib puag ncig thiab petrochemicals.
Post lub sij hawm: Jun-06-2024