Effects of Phosphoric Acid on Liquefaction of Wood in Phenol and Optimum Liquefaction Processing Parameters

作     者：ZhangQiuhui ZhaoGuangjie JieShujun 

作者机构：CollegeofMaterialSciencesandTechnologyBeijingForestryUniversityBeijing100083P.R.China 

出 版 物：《Forestry Studies in China》 (中国林学（英文版）)

年 卷 期：2004年第6卷第3期

页      面：50-54页

学科分类：082902[工学-木材科学与技术] 08[工学] 0829[工学-林业工程] 

基　　金：Supported by the Key Research Program Foundation of Ministry of Education of China (Grant No.02021) and the Development Plan Foundation of Beijing Forestry University 

主　　题：wood liquefaction phenol residue rate liquefaction processing parameters 

摘      要：To clarify the influencing factors of liquefaction of wood in phenol using phosphoric acid as a catalyst and get its liquefaction technology, a study on the liquefaction technology of Chinese fir (Cunninghamia lanceolata) and poplar (triploid Populus tomentosa Carr) under different conditions was conducted. The results indicate that the residue rate decreases with the increase of liquefaction temperature, liquefaction time, catalyst content or liquid ratio. It is also found that the optimum condition of liquefaction for poplar is estimated as: the reaction temperature of 180 C, the reaction time of 2.5 h, liquid ratio (phenol/wood ratio) of 4.5 and catalyst content of 8%, and 4.2% residue rate could be obtained. Under the processing parameters of temperature 180 C, the reaction time of 2.5 h, liquid ratio (phenol/wood ratio) of 4 and catalyst content of 10%, the residue rate of Chinese fir can reach 5.6%.