n Fig. 4(b) and (c). The Mn and
Mw of BCO decreased as the portion of ethanol increased. Therefore,
it is likely that the addition of ethanol lowered the molecular
weight of the produced BCO. However, the Mn and Mw of BCO with
100% ethanol were higher than those when 75% ethanol was used.
Considering that the yield of BCO was relatively low with 100%
ethanol, the higher molecular weight of the BCO in 100% ethanol
was assumed to be caused by insufficient depolymerization. The
Mn and Mw of BCO obtained from the raw EFB were lower than
those from the washed EFB, except for the Mw of BCO from the raw
EFB, which was slightly higher when amounts of 100% and 75% of
water were used