Hydrothermal Reaction of Glucose and Glycine as Model Compounds of Biomass

Abstract

Glucose and glycine as biomass model compounds were reacted in hot-compressed water between 150 and 350°C. The product distribution as gas, char, oil and aqueous products was examined based on the reaction temperature. The Maillard products, melanoidin, were decomposed over 200°C to produce the char, gas, ammonia and decomposed products in aqueous solution. The char was formed in the low reaction temperature-range from 150 to 200°C, while the oil was formed over 250°C. The overall reaction scheme was proposed as follows.