MWW zeolites muaj peb txheej ntawm pore systems: intralayer 10-ntiv nplhaib (10MR) channels, 12-membered nplhaib (12MR) supercages qhib los ntawm 10MR, thiab sab nraud nto 12MR khob (ib nrab ntawm lub supercage). Nws yog cov qauv pore tshwj xeeb no uas tso cai rau MWW zeolites los ua kom pom cov ethylbenzene xaiv zoo heev thiab tshwj xeeb catalytic kev ua tau zoo hauv ethylene-to-ethylbenzene alkylation cov tshuaj tiv thaiv, nrog rau kev ua lag luam zoo [2].
MCM-22 zeolite catalysts qhia tau zoo heev xaiv thiab ruaj khov nyob rau hauv qis benzene-rau-ethylene (B/E) piv. Ntawm ethylene qhov hnyav ib teev ntawm qhov chaw tshaj tawm (WHSV) ntawm 0.7 h^(-1), benzene-to-ethylene molar ratio (B/E) tuaj yeem txo mus rau 2.0, nrog ethylbenzene selectivity ncav cuag 84% thiab cov ntsiab lus xylene tsawg dua 50 mg / kg.