Furfural was prepared through the combined hydrolysis of rice hull with cellulase and SO42--TiO2 clay solid acid. An optimization analysis of the key factors was carried out with the methods of orthogonal experimentation and response surface analysis. The orthogonal experiment result of enzymolysis showed that the average pentose content was 17.54 g L-1 under the following conditions i.e., granularity of raw materials, 120 grit; solid-to-liquid ratio, 1:13; zymohydrolysis temperature, 55 degrees C; enzymolysis time, 8 h and amount of enzyme solution, 30 U g(-1) dry rice hull powder. The respon...
