Welcome to Chemistry and Industry of Forest Products,

›› 2011, Vol. 31 ›› Issue (6): 95-99.

• 研究报告 • Previous Articles     Next Articles

Furfural Production from Bamboo (Sinocalamus affinis) Chippings by a 2-Step Dilute Sulfuric Acid Hydrolysis

YIN Yan-fei, FANG Gui-gan, DENG Yong-jun, HAN Shan-ming, JIAO Jian, LIU Shan-shan, LIU Chun   

  1. Institute of Chemical Industry of Forest Products,CAF; National Engineering Lab.for Biomass Chemical Utilization; Key and Open Lab.on Forest Chemical Engineering,SFA;Key Lab.of Biomass Energy and Material, Jiangsu Province;Pulp and Paper R&D Centre,CAF, Nanjing 210042, China
  • Received:2010-10-19 Revised:2011-09-30 Online:2011-12-30 Published:2011-12-30

Abstract: Different hydrolysis conditions were tested for the first hydrolysis step. The variable parameters were studied, such as the reaction temperature, the concentration of dilute sulfuric acid, the liquid-solid ratio and the reaction time. Besides, according to orthogonal experiment to study the optionization conditions of pentose production, visual and variance analysis was made. Hydrolysate for experiments on the second hydrolysis step was produced under these conditions. As a result, at liquid-solid ratio 10∶1(mL∶g), reaction temperature 115 ℃, reaction time 2.5 h, and concentration of sulfuric acid 3.5 %, the optimium pentosan conversion is 72.06 %. At the second step, with a reaction temperature 154 ℃, a reaction time 6 h, a concentration of sulfuric acid 19.34 %, and an initial pentose content 4.53%,the maximum furfural yield can reach 63.36 % of the theoretical yield.

Key words: furfural, 2-step method, dilute sulfuric acid hydrolysis, pentose

CLC Number: