| In order to avoid the repeated investment from municipal solid waste (MSW) and sludge combustion, co-combustion of MSW and sludge was considered. ASPEN PLUS software was employed to simulate the chemical reaction equilibrium and process. Based on the results, energy balance and exergy balance were calculated. Morever, thermodynamic equilibrium calculations using the FACT program were performed to determine the distribution and mode of occurrence of potentially toxic elements in the co-combustion. The influence of temperature, pressure and gas atmospheres on equilibrium composition was evaluated. Results showed that temperature and HC1 were the key factors influencing the volatile behavior, especially HCl(g) was in favor of the volatile behavior at lower temperature and would promote low volatile elements volatilizing partly. In view of HCl pollution problem and the influence on the fate of trace elements, further experiment research on performance of calcium formate for high temperature removal of HCl was carried out. Result showed that removal rate of HC1 was 40% at high temperature. |
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