Real-time monitoring the carbonization and activation process of activated carbon prepared from Chinese parasol via zinc chloride activation

Abstract The study of carbonization and activation mechanism is essential for the preparation of high-performance biomass-based activated carbon (AC), which has been widely used in many fields. In this work, an online volatile analysis and real-time sampling was carried out to study the carbonization and activation mechanism of AC prepared by pyrolysis of Chinese parasol sawdust and ZnCl2 mixture. Combining a series of analysis results, it was found that the effect of ZnCl2 could be divided into three stages: (1) At low temperature (