Molecular sieving MFI-type zeolite membranes for pervaporation separation of xylene isomers

Wenhui Yuan; Y S Lin; Weishen Yang

doi:10.1021/ja031653t

Molecular sieving MFI-type zeolite membranes for pervaporation separation of xylene isomers

J Am Chem Soc. 2004 Apr 21;126(15):4776-7. doi: 10.1021/ja031653t.

Authors

Wenhui Yuan¹, Y S Lin, Weishen Yang

Affiliation

¹ Department of Chemical and Materials Engineering, University of Cincinnati, Cincinnati, Ohio 45221, USA.

PMID: 15080671
DOI: 10.1021/ja031653t

Abstract

Molecular sieving MFI-type zeolite membranes were prepared by a secondary growth method without using an organic template. Silicalite membranes with intercrystalline pores minimized or eliminated were obtained by this synthesis method which avoids the template removal step. The silicalite membrane exhibits molecular sieving characteristics with pervaporation separation factor for p-xylene to o-xylene or m-xylene of as high as about 70, the highest ever reported for a pervaporation membrane.