RT Journal Article
T1 Influence of variables in the hydrothermal treatment of rice straw on the composition of the resulting fractions
A1 Rodríguez, Alejandro
A1 Moral, Ana
A1 Sánchez, Rafael
A1 Requejo, Ana
A1 Jiménez, Luis
K1 Rice straw
K1 Hydrothermal treatment
K1 Hemicellulose
K1 Pulp
K1 Paper
AB The influence of the hydrothermal treatment conditions of rice straw (temperature – 150–190 °C , time – 0–20 min after reaching the operation temperature – and liquid/solid ratio – 6–8), on the composition of liquid and solid fractions was studied. Polynomial models were found for to reproduce the experimental results with errors less than 6%.Operating to 190 °C, 15 min and 9 liquid/solid ratio was obtained high values of glucose (1.92 g/L), xylose (3.97 g/L), arabinose (0.99 g/L) and acetic acid (1.96 g/L), what allows to save capital when not operating with the maximum time and/or liquid/solid ratio; yield in the solid fraction is 88.1% and lignin content 24.43%. If what it is required to obtain good values of yield (96.46%) and lignin content, is necessary to operate to 150 °C, obtaining lower concentrations glucose (1.11%), xylose (2.78%), arabinose (0.56%) and acetic acid (0.39%).Ethanolamine pulping of solid fraction of hydrothermal treatment provides pulp with higher or similar properties to those obtained of pulping rice straw with ethanolamine or soda.
PB Elsevier
YR 2009
FD 2009-04-14
LK https://hdl.handle.net/10433/24773
UL https://hdl.handle.net/10433/24773
LA en
NO Bioresource Technology, vol 100, nº 20, p. 4863-4866
NO ECOWAL Group, Molelular Biology and Biochemical Engineering Dpt. Universidad Pablo de Olavide, Road of Utrera Km.1, 41013 Seville, Spain.
DS RIO
RD May 1, 2026