Synergic Effects of Boronate Diester Formation and High-Ionic Strength Biphasic Operation on Xylose-to-Furfural Selectivity
نویسندگان
چکیده
Developing strategies to boost the selectivity for furfural from biomass-based xylose is important development of green fuels and chemicals. This study explores effects ionic strength on dehydration xylose, starting its phenylboronate diester (PBA2X), under biphasic conditions. Experimental results obtained reactions at 200 °C in a 1:1 v/v organic–aqueous system (composed either 1-methylnaphthalene or toluene water pH = 1 H2SO4) indicate that increasing (by adding Na2SO4) 0.1 6.1 M an increased xylose-to-furfural (from ∼70 ∼90 mol %). partly due effect salt partitioning furfural, which pushed into organic phase, while rate formation enhanced, as reported literature. Remarkably, however, PBA2X increases (88 %) beyond level observed when free (75 Combined, these synergic use PBA material, operation, high overall selectivity. Based results, process concept proposed, connects extraction step, retrieve boronate xylose-rich biomass hydrolysate, selective production high-ionic Such avoids addition original feed thus combines benefits enhancements ester formation, allowing recovery product closing cycles. The validity supported by additional data partitioning, losses, isolation, well analysis sustainability metrics.
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ژورنال
عنوان ژورنال: ACS Sustainable Chemistry & Engineering
سال: 2022
ISSN: ['2168-0485']
DOI: https://doi.org/10.1021/acssuschemeng.1c08265