Phello ea Si-Al karo-karolelano ho ZSM molecular sieve

Si/Al ratio (Si/Al ratio) ke thepa ea bohlokoa ea ZSM molecular sieve, e bonts'ang litaba tse amanang le Si le Al ka har'a sieve ea molek'hule. Karo-karolelano ena e na le phello ea bohlokoa mosebetsing le khetho ea ZSM molecular sieve.
Ntlha ea pele, karo-karolelano ea Si / Al e ka ama acidity ea li-sieve tsa molek'hule tsa ZSM. Ka kakaretso, ho phahama ha karo-karolelano ea Si-Al, ho matlafatsa acidity ea sieve ea molek'hule. Lebaka ke hobane aluminium e ka fana ka setsi se eketsehileng sa asiti ka har'a sieve ea limolek'hule, athe silicon e laola haholo sebopeho le sebopeho sa sefe ea limolek'hule.
Ka hona, acidity le ts'ebetso ea catalytic ea sieve ea limolek'hule e ka laoloa ka ho lokisa karo-karolelano ea Si-Al. Taba ea bobeli, karo-karolelano ea Si / Al e ka boela ea ama botsitso le ho hanyetsa mocheso oa sieve ea molek'hule ea ZSM.
Li-sieve tsa limolek'hule tse entsoeng ka tekanyo e phahameng ea Si/Al hangata li na le botsitso bo betere ba mocheso le hydrothermal.
Sena ke hobane silicon ka sieve ea molek'hule e ka fana ka botsitso bo eketsehileng, ho hanyetsa liketso tse kang pyrolysis le acid hydrolysis. Ho phaella moo, karo-karolelano ea Si / Al e ka boela ea ama boholo ba pore le sebōpeho sa li-sieve tsa molek'hule tsa ZSM.
Ka kakaretso, palo e phahameng ea Si-Al, e nyenyane ea pore ea sieve ea molek'hule, 'me sebopeho se haufi le selikalikoe. Lebaka ke hobane aluminium e ka fana ka lintlha tse ling tse hokahanyang sefapanong ka har'a sieve ea limolek'hule, ho etsa hore sebopeho sa kristale se kopane haholoanyane. Ka kakaretso, phello ea karo-karolelano ea Si-Al ho sieve ea molek'hule ea ZSM e na le likarolo tse ngata.
Ka ho lokisa karo-karolelano ea Si-Al, li-sieve tsa limolek'hule tse nang le boholo bo itseng ba pore le sebopeho, acidity e ntle le botsitso li ka etsoa, ​​​​e le ho fihlela litlhoko tsa karabelo e fapaneng ea catalytic.


Nako ea poso: Dec-11-2023