Artículos de revistas
Approximate solution of the autocatalytic hydrolysis of cellulose
Fecha
2009Registro en:
CELLULOSE, v.16, n.6, p.1069-1073, 2009
0969-0239
10.1007/s10570-009-9315-z
Autor
GEHLEN, Marcelo H.
Institución
Resumen
Depolymerization of cellulose in homogeneous acidic medium is analyzed on the basis of autocatalytic model of hydrolysis with a positive feedback of acid production from the degraded biopolymer. The normalized number of scissions per cellulose chain, S(t)/nA degrees A = 1 - C(t)/C(0), follows a sigmoid behavior with reaction time t, and the cellulose concentration C(t) decreases exponentially with a linear and cubic time dependence, C(t) = C(0)exp[-at - bt (3)], where a and b are model parameters easier determined from data analysis.