Title
Dilute sulphuric acid hydrolysis of vegetal biomass
Authors
ADINA ELENA PANZARIU and TEODOR MALUTAN

Published Volume 49 Issue 1 January
Keywords dilute acid hydrolysis, flow through, vegetal biomass

Abstract
In this study, the influence of the temperature in the flow-through dilute sulphuric acid hydrolysis (0.5% w/w of sulphuric acid) of vegetal biomass on the sugar yield of the hydrolysate was investigated. For the hydrolysis of vegetal biomass, a reactor was used at a designed reaction temperature between 150 °C and 180 °C. The study indicated that prehydrolyzed rapeseed stalks presented higher values of sugar yields, which did not exceed 19%, while beech sawdust hydrolysis led a maximum of 5.96%. Therefore, we can conclude that rapeseed stalks have superior hydrolytic potential compared to beech sawdust. By raising the temperature from 150 °C to 180 °C, there is an increase in TRS yield of the hydrolysates, thus the temperature increase favours the TRS.