Study on Liquefaction of Corncob in Polyhydric Alcohols
The liquefaction of corncob in polyhydric alcohols was investigated by using sulfuric acid as a catalyst. Results showed that the best liquefaction could be obtained with residue percent of 4.5% under the conditions with the corncob/polyhydric alcohols mass ratio of 1/5, reaction temperature of 150°C, reaction time of 60 min, catalyst amount of 3% (based on the weight of corncob), PEG 400/glycerin mass ratio of 7/3 in the polyhydric alcohols, respectively. The liquefied liquid products had acid number of 18.9 mg KOH/g and hydroxyl number of 616.3mg KOH/g, respectively.
Yanguo Shi and Jinlong Zuo
Y. B. Huang et al., "Study on Liquefaction of Corncob in Polyhydric Alcohols", Advanced Materials Research, Vols. 183-185, pp. 1110-1113, 2011