296248 Monolayer Polymeric Coatings To Enhance The Performance and Service Life Of Membranes For High Temperature Biomass Pretreatment
Vincent Kandagor, Gajanan Bhat
Department of Energy Science and Engineering,
Bredesen Center for Interdisciplinary Research and Graduate Education,
The University of Tennessee Knoxville. vkandagor@utk.edu.
Abstract
There has been continuous invention and development of nanoporous inorganic membranes to perform organic separations with high throughput at high temperatures up to 250 0C and operating pressures up to 550 psi. In particular, membrane-based energy efficient integrated separation processes and systems for the high temperature pretreatment of lignocellulosic biomass has recently generated great research interests. Whereas inorganic membranes are being developed for commercial purposes, there is some need to protect these membranes with high temperature stable polymeric materials to prevent pore fouling during the separation process. We have proposed to apply monolayer coating of high temperature stable, and chemically and mechanically robust polyetherimide (Ultem) on these nanoporous membranes using a solution-based coating method. This idea of modifying the surface of inorganic nanoporous membranes with a monolayer coating of high temperature stable polymers is novel. The investigation envisions a unique approach to apply polymeric coatings for nanoporous membranes. Membranes are critical for increasing the efficiency of biomass pretreatment at a reasonable cost. We propose to deposit monolayer coatings of a high temperature polymer on these inorganic membranes to decrease pore fouling and increase their service life.
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