Modeling of Pretreatment and Acid/Alkaline Hydrolyses of Lignocellulosic Biomasses in Twin-Screw Extruders
Por:
Carlos Morales-Huerta, Juan, Jaramillo-Soto, Gabriel, MANERO, OCTAVIO, BARZANA, EDUARDO, Vivado-Lima, Eduardo
Publicada:
24 jun 2020
Resumen:
A mathematical model for pretreatment and hydrolysis of lignocellulosic
biomasses in twin-screw extruders is presented. The model allows for
calculation of the concentrations of extracted hemicellulose and sugars
(xylose and glucose) at different operating conditions (pressure,
temperature, and NaOH and H2SO4 concentrations, as well as screw
rotational speed). Parameter sensitivity analyses on the effects of
process variables on product concentrations are reported. Regarding the
pretreatment case, the effects of NaOH concentration, liquid/solid
ratio, and screw rotational speed on the extracted hemicellulose are
studied. In the case of hydrolysis, the effects of NaOH concentration,
screw rotational speed, and barrel temperature on the final
concentrations of glucose and xylose are addressed. Reasonably good
agreement between experimental data from different
pretreatment/hydrolysis systems and laboratories and the calculations
obtained with our model is observed.
Filiaciones:
Carlos Morales-Huerta, Juan:
Univ Nacl Autonoma Mexico, Dept Ingn Quim, Fac Quim, CU, Mexico City 04510, DF, Mexico
Jaramillo-Soto, Gabriel:
Univ Nacl Autonoma Mexico, Dept Ingn Quim, Fac Quim, CU, Mexico City 04510, DF, Mexico
MANERO, OCTAVIO:
Univ Nacl Autonoma Mexico, Inst Invest Mat, CU, Mexico City 04510, DF, Mexico
BARZANA, EDUARDO:
Univ Nacl Autonoma Mexico, Dept Ingn Quim, Fac Quim, CU, Mexico City 04510, DF, Mexico
Vivado-Lima, Eduardo:
Univ Nacl Autonoma Mexico, Dept Ingn Quim, Fac Quim, CU, Mexico City 04510, DF, Mexico
Univ Waterloo, Inst Polymer Res, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada
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