PNNL

Abstract

Porous metal substrates with improved mass and heat transfer charateristics were used to design engineered catalyst structures for microchannel reactor applications. Metal substrates have advantages such as high thermal conductivity, but are difficult to integrate with refractory metal oxides often used as catalyst supports. This problem can be mitigated by incorporating an interfacial layer between the porous metal substrate surface and the catalyst layer which improves the catalyst adhesion, prevents metal surface corrosion, and minimizes the undersired side reactions catalyzed by the underlying metal substrate.