Journal
CHEMICAL ENGINEERING RESEARCH & DESIGN
Volume 83, Issue A3, Pages 295-301Publisher
INST CHEMICAL ENGINEERS
DOI: 10.1205/cherd.04208
Keywords
zeolite membrane reactor; contactor mode; indoor air pollution; VOC combustion; low concentration; Pt-ZSM-5
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ZSM-5 membranes prepared by liquid phase hydrothermal synthesis on tubular commercial supports and subsequently ion-exchanged with Pt were used in a membrane reactor for the combustion of n-hexane present at low concentrations in air. The investigation deals mainly with the relationship between the permeation properties of the membrane and the performance of the membrane as a reactor. It was found that, rather than aiming for a high-quality membrane, membrane synthesis should be tailored to achieve the presence of a certain concentration of defects, as this improves the performance of the membrane reactor for the reaction tested. For catalytic membranes with suitable permeation properties, nearly complete n-hexane combustion was achieved at 210 degrees C.
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