Preparation of SO42-/ZrO2 solid superacid and its efficient catalytic properties on the liquefaction of rapeseed straw

SO42-/ZrO2 solid superacid were prepared by the method of precipitation impregnation and the samples were characterized by SEM, XRD, and FT-IR. Then the samples were applied into the liquefied reaction of the waste rapeseed straw to prepare the biomass polyols and found it possessed efficient catalytic performance. And the catalytic liquefaction ratio of the waste rapeseed straw can reach 84%. Moreover, the catalytic performance was investigated as a function of temperatures, reaction times, and catalyst contents, respectively.