Value-Added Utilization of the Lignin-Derived Phenol Monomer and Bioethanol to Synthesize Ethylphenol and Ethyl Phenyl Ether

This research focuses on high-value utilization of the lignin-derived phenol monomer and bioethanol from biorefining process. Supported-heteropolyacid is easily used as an efficient catalyst for the ethylation of phenol with bioethanol to obtain value-added products. Through adjusting the loading amount, different acidity amount and strength can be obtained, leading to the tunable selectivity to the phenol ethylation route and regioselectivity.