Xov xwm
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Daim ntawv thov ntawm ZSM molecular sieve ua isomerization catalyst
ZSM molecular sieve yog ib hom crystalline silicaluminate nrog cov pore loj thiab cov duab, uas tau siv dav hauv ntau yam tshuaj lom neeg vim nws qhov kev ua tau zoo catalytic. Ntawm lawv, daim ntawv thov ntawm ZSM molecular sieve nyob rau hauv lub tshav pob ntawm isomerization catalyst muaj attra ...Nyeem ntxiv -
Nto acidity ntawm ZSM molecular sieve
Qhov saum npoo acidity ntawm ZSM molecular sieve yog ib qho ntawm nws cov khoom tseem ceeb raws li lub catalyst. Cov kua qaub no los ntawm cov txhuas atoms hauv cov pob txha molecular sieve, uas tuaj yeem muab cov protons los ua ib qho chaw protonated. Qhov no protonated nto tuaj yeem koom nrog ntau yam tshuaj reactio ...Nyeem ntxiv -
Cov nyhuv ntawm Si-Al piv rau ZSM molecular sieve
Si / Al piv (Si / Al ratio) yog ib qho tseem ceeb ntawm ZSM molecular sieve, uas qhia txog cov ntsiab lus txheeb ze ntawm Si thiab Al nyob rau hauv molecular sieve. Qhov piv no muaj qhov cuam tshuam tseem ceeb ntawm kev ua haujlwm thiab kev xaiv ntawm ZSM molecular sieve. Ua ntej, Si / Al piv tuaj yeem cuam tshuam cov acidity ntawm ZSM m ...Nyeem ntxiv -
ZSM molecular sieve
ZSM molecular sieve yog ib hom catalyst nrog cov qauv tshwj xeeb, uas qhia tau hais tias kev ua tau zoo hauv ntau cov tshuaj tiv thaiv vim nws cov kua qaub zoo heev. Cov hauv qab no yog qee cov catalysts thiab cov tshuaj tiv thaiv uas ZSM molecular sieves siv tau rau: 1. Isomerization cov tshuaj tiv thaiv: ZSM molecular sieves ...Nyeem ntxiv -
Kev tshawb fawb txog kev siv cov silica gel desiccant
Hauv kev tsim khoom thiab lub neej, silica gel tuaj yeem siv los ua kom qhuav N2, huab cua, hydrogen, natural gas [1] thiab lwm yam. Raws li cov kua qaub thiab alkali, desiccant tuaj yeem muab faib ua: acid desiccant, alkaline desiccant thiab nruab nrab desiccant [2]. Silica gel zoo li yog lub tshuab ziab khaub ncaws tsis zoo uas zoo li qhuav NH3, HCl, SO2, ...Nyeem ntxiv -
Yuav ua li cas los tsim cov silica gel?
Silica gel yog ib yam khoom siv adsorption zoo heev. Nws yog ib qho tshuaj amorphous thiab nws cov tshuaj formula yog mSiO2.nH2O. Nws ua tau raws li Suav tshuaj tus qauv HG / T2765-2005. Nws yog cov khoom siv desiccant tau pom zoo los ntawm FDA uas tuaj yeem tiv tauj ncaj qha nrog zaub mov thiab tshuaj. Silica gel muaj ...Nyeem ntxiv -
Grace Scientist Yuying Shu's Discovery Txhim Kho FCC Catalyst Performance thiab Environmental Friendliness
COLOMBIA, MD, Kaum Ib Hlis 16, 2020 (GLOBE NEWSWIRE) - WR Grace & Co. (NYSE: GRA) tshaj tawm hnub no tias Tus Thawj Saib Xyuas Kev Tshawb Fawb Yuying Shu tau txais txiaj ntsig los ntawm kev tshawb pom tam sim no patented, tus yeej Grace Stable tus neeg sawv cev nrog kev ua haujlwm zoo. (GSI) rau Rare Earth Tec...Nyeem ntxiv -
catalyst carrier thiab zeolite
Peb siv cov ncuav qab zib los txhim kho koj qhov kev paub. Los ntawm kev txuas ntxiv mus saib lub vev xaib no, koj pom zoo rau peb siv cov ncuav qab zib. Xav paub ntxiv. Kab lus no tsom mus rau qhov chaw acidity ntawm oxide catalysts thiab kev txhawb nqa (γ-Al2O3, CeO2, ZrO2, Si ...Nyeem ntxiv
