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Setti L. , Bonoli B., Badiali E., Giuliani S.
Inverse phase transfer biocatalysis for a
biodesulfurization process of middle distillates
Abstract
Biocatalytic desulfurization of fuels presents
some problem concerning the by-products inhibition of the biocatalysts and
diffusive mechanisms between the organic and the aqueous phases. The inverse
phase transfer biocatalysis (IPTB) is based on the use of supramolecolar
receptors (modified cyclodextrines), which selectively pick-up the sulfur
aromatic compounds in the organic phase and transfer them into the water phase
where the biocatalyst is located. It can both improve the mass transfer of
water insoluble substrates between organic and aqueous phases and decrease
and/or eliminate the feed-back inhibition of the biocatalyst due to the
by-products accumulation in water phase.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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