Recovery of glucose from an aqueous ionic liquid by adsorption onto a zeolite-based solid

M Francisco, AN Mlinar, B Yoo, AT Bell… - Chemical engineering …, 2011 - Elsevier
Chemical engineering journal, 2011Elsevier
Batch adsorption was studied for d-glucose on different types of zeolite-based adsorbents
from an aqueous solution of 1-ethyl-3-methylimidazolium acetate ([C2mim][CH3COO]). The
goal of the studies is to establish a possible process for recovery of glucose and of ionic
liquid for recycle in a continuous process for converting a wild grass (miscanthus) to a liquid
biofuel. A significant increase in glucose uptake is obtained when ionic liquid is present in
the aqueous glucose solution. Highest glucose uptake was obtained for Faujasite structures …
Batch adsorption was studied for d-glucose on different types of zeolite-based adsorbents from an aqueous solution of 1-ethyl-3-methylimidazolium acetate ([C2mim][CH3COO]). The goal of the studies is to establish a possible process for recovery of glucose and of ionic liquid for recycle in a continuous process for converting a wild grass (miscanthus) to a liquid biofuel. A significant increase in glucose uptake is obtained when ionic liquid is present in the aqueous glucose solution. Highest glucose uptake was obtained for Faujasite structures and for zeolites with a high Si/Al ratio. Adsorption on KX-zeolites can reach 45% glucose removal in one step. Desorption of glucose into water is complete in 50min at 50°C and in 10min at 60°C.
Elsevier
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