Study on the Characteristics of Dried Papermaking Sludge and Biomass Co-Pyrolysis and Its Charring Mechanism
Papermaking sludge(PS)is the main by-product of papermaking wastewater treatment.Pyrolysis technology can reduce the output of papermaking sludge and achieve harmless and stable utilization.However,the ash content in the sludge is high and the bio-oil yield is low.It is difficult to use it directly as fuel.Therefore,adding biomass can effectively avoid the insufficient pyrolysis of sludge,help improve pyrolysis efficiency as well as product quality.