The effect of reaction time on TRS yield was investigated
3.2. Reactivity of RCs affected by DP
Compared with conduction heating, microwave can produce efficient internal heating or in-core volumetric heating by direct coupling of microwave energy with the molecules, such as the solvents, reagents, or catalysts (Wang et al., 2015). Under microwave radiation, depolymerization of MGCD0103 will be accelerated. Additionally, microwave radiation is also believed to be helpful to destroy the crystalline structure of cellulose and thus improve the effective contact between cellulose and catalyst (Wu et al., 2010). Hence, microwave radiation was introduced to reduce the reaction time in the experiment. As a result, the catalyst of 0.04 mol/L sulfuric acid was chosen to carry out the hydrolysis of cellulose at 160 °C under microwave radiation.
Fig. 1. Cellulose conversion and TRS yield from RCs with various DP.Figure optionsDownload full-size imageDownload as PowerPoint slide
3.3. Recrystallization appeared during hydrolysis
Fig. 2. Cellulose conversion (a) and TRS (b) yield obtained with different time from RCs at 160 °C.Figure optionsDownload full-size imageDownload as PowerPoint slide