Table 1
Hot water and dilute acid pretreatment conditions.
Sample Temperature
C
Holding
time
mina
Dilute
acid
added
% w/w
LogR00 LogR0 log R
HW at 160 C
for 4 min
160 4 NAb 5.61 1.39 3.29
HW at 160 C
for 8 min
160 8 NA 5.82 1.18 3.34
HW at 180 C
for 4 min
180 4 NA 6.74 0.26 3.84
HW at 180 C
for 8 min
180 8 NA 7.24 0.27 4.09
HW at 200 C
for 4 min
200 4 NA 8.01 1.01 4.68
DA, 0.55% at
160 C for
4 min
160 4 0.55 8.01 1.01 3.39
DA, 1.0% at
150 C for
4 min
150 4 1.0 8.46 1.46 2.99
a Holding time at reaction temperature. b Not applicable.