TG-MS ANALYSIS OF NITROGEN TRANSFORMATION DURING CO-COMBUSTION OF BIOMASS WITH MUNICIPAL SEWAGE SLUDGE

摘要

Municipal sewage sludge can be used as an inhibitor to solve alkali metal related problems during biomass combustion.NOx and N2O emission is an important factor for the co-combustion of biomass with municipal sewage sludge.TG-MS was used to study nitrogen transformation during co-combustion of the blends.This paper mainly focuses on the release characteristics of nitrogen-containing species during heating process of mixtures.The yield of four kinds of nitrogenous gases decreases by mixing biomass with municipal sewage sludge during the heating process.Considering the total cumulative volume of nitrogenous gases, it seems that the most suitable mixing ratio of municipal sewage sludge is between 30％～70％.This passage also provides the data and fundamental principle of co-combustion of biomass with municipal sewage sludge for further research.