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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