Kev vam meej hauv Tuam Tshoj cov roj av mesoporous
molecular sieve technology
Raws li lub teb chaws thawj-theem tshawb fawb lub koom haum, FCC catalysts uas muaj mesoporous molecular sieves tsis tau qhia nyob rau hauv loj-scale catalytic cracking units, qhia tau hais tias cov kev siv theem ntawm Tuam Tshoj Petroleum thiab Petrochemical lub koom haum tau mus txog rau pem hauv ntej nyob rau hauv lub ntiaj teb no.
Kev loj hlob ntawm mesoporous molecular sieves rau macromolecular hloov dua siab tshiab rau catalyze cov ntaub ntawv tshiab tau yog ib qho teeb meem thoob ntiaj teb. Nyob rau hauv xyoo tas los no, cov kws tshawb fawb tau ua qhov kev tshawb fawb tob txog kev siv thev naus laus zis mesoporous molecular sieve synthesis, thiab ua tiav cov txiaj ntsig zoo tshaj plaws hauv kev xav thiab cov txheej txheem tshuaj tiv thaiv, tab sis peb qhov teeb meem tseem ceeb uas txwv tsis pub siv mesoporous molecular sieve tsis tau daws tau zoo: Ua ntej, mesoporous molecular sieve Lub amorphization ntawm lub pore phab ntsa qauv ncaj qha ua rau cov txheej txheem vau nyob rau hauv cov tshuaj tiv thaiv hnyav. Qhov thib ob, tetracoordinated Al nyob rau hauv cov qauv siv lead ua yog qhov chaw ntawm cov kua qaub, ua rau cov kua qaub tsis txaus. Qhov thib peb yog cov synthesis ntawm mesoporous molecular sieves. Kev siv cov organic templating agents txwv lawv cov khoom loj.
Raws li tus choj ntawm macropores thiab micropores ntawm meridized catalysts, mesoporous molecular sieves muaj kev cia siab dav rau macromolecular cracking. Txawm li cas los xij, vim tias cov nqi tsim khoom siab thiab hydrothermal stability, nws yog ib qho nyuaj rau ua tau raws li cov tshuaj tiv thaiv hnyav ntawm catalytic cracking, yog li lawv tuaj yeem siv rau hauv catalytic cracking catalysts. Daim ntawv thov tau dhau los ua teeb meem thoob ntiaj teb. Nrog rau kev txhawb nqa ntawm National Science thiab Technology Support Program thiab Tuam Tshoj Petroleum Science thiab Technology Project, cov teeb meem kev tshawb fawb tseem ceeb uas txwv txoj kev loj hlob ntawm mesoporous molecular sieve technology, high-Petrochemical Institute thiab Liu Hongtao pab pawg ntawm Beijing University of Chemical Technology tsim. pab pawg tshawb fawb sib koom ua ke. Tom qab ntau tshaj kaum xyoo ntawm kev mob siab rau kev tshawb fawb, Nyob rau hauv cov qauv ntawm mesoporous molecular sieves thiab cov creation ntawm hluavtaws systems, loj breakthroughs tau ua. Cov txheej txheem pore-phab ntsa pseudo-crystal sib dhos tau tsim los txhim kho kev ruaj ntseg, thiab qib high-qib tetra-coordinated txhuas tau tsim los txhim kho acidity. Lub siab-concentration noob siv lead ua tau tsim. Ib txoj kev npaj tus nqi qis tshiab rau kev sib xyaw mesoporous molecular sieves, uas txhim kho hydrothermal stability los ntawm 2.5 npaug, acidity los ntawm ze li ntawm ib zaug, thiab molecular sieve ntau lawm nqi los ntawm 70%, uas kov yeej ntau yam teeb meem los ntawm kev sim mus rau industrial ntau lawm. Thawj thawj zaug nyob rau hauv lub ntiaj teb no, nws tau ntse tsim ib tug ua tiav txheej ntawm technologies rau industrial nruam zus tau tej cov nqi qis, ib puag ncig tus phooj ywg, high-performance mesoporous molecular sieves.
Vim yog qhov kev sib tw loj hauv kev tshawb fawb theoretical thiab synthesis thev naus laus zis ntawm mesoporous molecular sieves, kev tshawb fawb thiab kev loj hlob theem ntawm Tuam Tshoj Petroleum cov ntaub ntawv yooj yim rau mesoporous molecular sieves tau leapt mus rau qib siab thoob ntiaj teb. Raws li qhov no, pab pawg ua haujlwm tau tsim cov catalytic cracking catalyst LPC-65 nrog rau kev ua haujlwm siab mesoporous molecular sieve raws li cov khoom siv ua haujlwm (kev lag luam qib MASTER-1) los txo cov ntsiab lus olefin ntawm cov roj av catalytic, thiab nyob rau lub Cuaj Hli xyoo no hauv Lanzhou Petrochemical Ua tiav daim ntawv thov. Daim ntawv thov kev lag luam qhia tau hais tias nyob rau hauv cov xwm txheej uas cov khoom siv tsis zoo ntawm cov khoom siv raw yog siv zog thiab cov catalyst noj yog txo los ntawm 30%, cov khoom faib tau zoo dua qub, tshwj xeeb tshaj yog cov roj av olefins txo los ntawm 35% mus rau 30%, thiab qis tshaj. yog 28.3%. Thaum lub sijhawm tseem ceeb, LPC-65 catalyst muab kev pabcuam zoo heev rau kev txo qis ntawm olefin kev ua tau zoo hauv qhov tob ntawm kev tsim cov roj av VI hauv Lanzhou Petrochemical ntau lawm thiab txhim kho kev lag luam efficiency. Qhov no kuj yog thawj daim ntawv thov loj ntawm mesoporous molecular sieves rau ib lab-tuj catalytic cracking unit nyob rau hauv lub ntiaj teb no, uas ua pov thawj tag nrho tias MASTER -1 molecular sieve muaj zoo hydrothermal stability thiab hnyav roj hloov lub peev xwm. Nyob rau hauv qhov kev siv ntawm qhov project, 12 cov ntaub ntawv tau luam tawm nyob rau hauv SCI, thiab 8 invention patents tau ua ntaub ntawv. Rau qhov tseem ceeb invention patents nrog synthesis, hloov kho thiab daim ntawv thov tau tso cai. Cov ntawv no tau raug suav thiab qhuas los ntawm Harvard University cov kws tshawb fawb.
Kev vam meej ntawm high-hydrothermal stability thiab high-acid mesoporous molecular sieve high-efficiency synthesis technology yog ib tug loj breakthrough nyob rau hauv lub synthesis technology ntawm thoob ntiaj teb mesoporous molecular sieve teb. Nws tseem yog ib qho tseem ceeb ntawm kev tshawb fawb ua haujlwm ntawm Tuam Tshoj Petroleum thiab Petrochemical lub koom haum thiab kev siv thev naus laus zis. Ib qho piv txwv zoo. Cov ntaub ntawv tshiab tsis tsuas yog tsim cov xwm txheej rau mesoporous molecular sieves siv rau hauv catalytic cracking, hydrocracking thiab lwm yam refinery catalysts, tab sis kuj muab txoj hauv kev tshiab los txhim kho cov tshuaj tiv thaiv kev ua haujlwm ntawm cov txheej txheem catalytic xws li cov tshuaj zoo thiab kev tiv thaiv ib puag ncig, thiab txhawb txoj kev loj hlob ntawm catalytic disciplines thiab kev loj hlob ntawm molecular sieve kev lag luam. Muaj ib qho tseem ceeb scientific nqi.
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