Hydrolysis of Cellulose with Hydrochloric Acid as Catalyst under Microwave Irradiation

The microwave irradiation was used for the acid hydrolysis of cellulose.The technological conditions such as microwave power,acid concentration and reaction time were discussed.When the microwave power was 500W,the hydrochloric acid concentration was 20 % and the reaction time was 50 min,the deoxidation sugars concentration could reach 36.7 g·L-1 which was higher than the parallel experiment of 14.4g·L-1 under the conventional water bath heating.Fourier transform infrared spectrometer was employed in the contrast experiments,and the infrared spectrograms proved that the residues had the same structure and both keep a good structure of cellulose.