A process insight into production of ethyl levulinate via a stepwise fractionation

Autor: Yan Ma, Hongxiao Wang, Ziyang Wu, Weihong Tan, Guodong Feng, Jianchun Jiang
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of Bioresources and Bioproducts, Vol 9, Iss 2, Pp 233-242 (2024)
Druh dokumentu: article
ISSN: 2369-9698
DOI: 10.1016/j.jobab.2023.11.001
Popis: Ethyl levulinate (EL) is a key biomass-derived compounds due to its socio-economic benefits for the synthesis of commodity chemicals. Herein, we proposed an efficient one-step bamboo conversion to EL in ethanol, and a novel stepwise fractionation to purify EL and lignocellulose degradation products. A proton acid, due to its high catalytic efficiency, yielded 26.65 % EL in 120 min at 200 °C. The productions of ethyl glucoside and 5-ethoxymethylfurfural were analyzed in terms of by-products formation. To the best of our knowledge, there is no single report on catalyst for one step synthesis of EL directly from bamboo, as well as a stepwise fractionation to purify EL. Due to similar physiochemical properties in each fraction, the platform molecules could broaden a new paradigm of bamboo biomass utilization for renewable energy and value-added biochemicals. In addition, glucose, ethyl glucoside, corn starch, and microcrystalline cellulose were also investigated as substrates, so that the reaction intermediates of this one-pot procedure were identified and a possible reaction mechanism was proposed.
Databáze: Directory of Open Access Journals