Furfural production from a pre-hydrolysate generated using aspen and maple chips

Maximization of furfural production has also been studied in this work by varying the sulfuric acid dosage (1-5 kg m−3) and the reactor temperature (160-260 °C). The highest furfural yield of 77.6% can be obtained when a sulfuric acid concentration of 3.6 kg m−3 and a temperature of 240 °C are used for the pre-hydrolysate solution. When lignin is removed from the pre-hydrolysate prior to furfural production, the highest furfural yield is 72.6% at 220 °C and 3.6 kg m−3 of sulfuric acid.