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Free keywords:
CATIONIC EXCHANGE RESINS; POLYMER NETWORKS; BIOMASS; DEHYDRATION; HYDROCARBONS; SULFONATION; CHEMICALS; XYLOSE; ACTIVATION; SYSTEM
Abstract:
A new synthetic route to acidic polystyrene-co-divinylbenzene resin catalysts allows systematic variation of cross-linker content, porosity, and acid site density. These resins are prepared in the form of powders by nanocasting, and the acid site density and the distribution of the acid sites in the prepared catalysts is controlled by liquid phase sulfonation with adjusted mixtures of sulfuric acid and oleum. This method allows identical synthesis conditions for the entire range of cross-linker content. With this set of model catalysts, the crosslinker content of the resin was found to be the most influential factor for the liquid phase dehydration of fructose to 5-hydroxymethylfurfural.