The breakdown of cellulose and the formation of active cellulose with decomposition into char and gases has been known. However, the complex reactions into the formation of CO2 and water vapor with possible De-polymerization into 'volatiles' need to be applied to characterize the purity and efficiency of the application of the intermediates (obtained from pyrolysis) for other useful products. In our laboratory the intermediates obtained from pyrolysis of bamboo to produce activated carbon serve as waste. The knowledge of the reaction mechanisms of the process will help us to utilize the waste for useful products.