A direct synthesis of adsorbable hydrochar by hydrothermal conversion of lignin

作者:Kang, S.; Li, X.; Fan, J.; Chang, J.*
来源:Energy Sources, Part A: Recovery, Utilization, and Environmental Effects , 2016, 38(9): 1255-1261.
DOI:10.1080/15567036.2011.631970

摘要

Hydrothermal conversion of lignosulfonate with or without formaldehyde as polymerization agent was conducted at 320 degrees C. Compared with the hydrochar produced without formaldehyde addition (WF-hydrochar), the yield and surface area of the hydrochar produced with formaldehyde addition (F-hydrochar) increased 33.8 and 46.4%, respectively. The F-hydrochar showed much higher adsorption ability of Cu2+ than that of WF-hydrochar, while its adsorption ability of methyl orange was a little lower than that of WF-hydrochar. These discoveries explored a high yield of hydrochar production and a potential new application of hydrochar.