Simplistic modeling approach to heterogeneous dilute-acid hydrolysis of cellulose microcrystallites.
The classic kinetic model for cellulose hydrolysis is often referred to as pseudo-homogeneous, a term revealing the insight that the process is actually heterogeneous. During the past 10-15 yr, the shortcomings of this model have been demonstrated in various studies and the interest in the heterogeneous aspects has increased. The present work presents a simplistic model in which the intrinsic, heterogeneous hydrolysis and transport rates are coupled by the assumption of a constant glucosidic surface concentration. The mechanisms affecting these two rates are largely unknown, but the model serves as a guideline for further exploration of the process.
WPettersson
Pär O
PO
Mid Sweden University, 891 18 Ornsköldsvik, Sweden. par.pettersson@mh.se
Torget
Robert W
RW
Eklund
Robert
R
Xiang
Qian
Q
Lee
Y Y
YY
Zacchi
Guido
G
D002482:Cellulose / Q000737:chemistry*; D003198:Computer Simulation; D005936:Glucans / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D006868:Hydrolysis; D007700:Kinetics; D008962:Models, Theoretical
D005936:Glucans; D002482:Cellulose