Pyrolysis of Sediments Dredged from Kunming Lake of Summer Palace in Beijing to Generate Combustible Gases

摘要

Several rivers and lakes distribute in Beijing. Huge dredged sediments have been produced in every year. Hence, it faces a serious challenge to treat and utilize the sediments properly. The sediments dredged from Kunming Lake of Summer Palace in Beijing have been chosen to pyrolyze in a fixed bed reactor to find a clean and efficient way to treat the sludge. Clean combustible gases and kinetics for sludge pyrolysis have been made in this paper. It indicates that the production of combustible gases from the sludge during pyrolysis gives a similar way either at the addition of the catalysts or not. Long residence time and high temperature enhance gases production. Activation energy E of the reaction decreases in the addition of suitable catalysts.