2013 AIChE Annual Meeting

(727g) Combustion Of Polyurethane By Chemical Looping Process In A Moving Bed Reactor Using Iron-Based Oxygen Carrier

Authors

Wu, H. C. - Presenter, National Taiwan University of Science and Technology
Ku, Y., National Taiwan University of Science and Technology
Chiu, P. C., National Taiwan University of Science and Technology
Tseng, Y. H., National Taiwan University of Science and Technology
Kuo, Y. L., National Taiwan University of Science and Technology



Polyurethane (PU) as a thermal setting plastic with high recovery cost was employed as fuel for chemical looping combustion. The heat value of PU was estimated to be 0.28 kJ/g based on the ultimate analysis of PU by an elemental analyzer. Alumina supported iron-based composite oxygen carriers were prepared for combustion with PU by a moving bed reactor. PU was gasified and reformed by gasification reactants, CO2/O2, to be CO and H2 as fuels prior to combustion with iron-based composite oxygen carriers at 900°C. By moving bed reactor operation, CO2 yield and PU conversion were both in the moving bed reactor. Long-term operation for PU combustion was lasted for 24 hours, and 100% of CO2 yield was stably maintained. PU combustion with iron-based oxygen carrier in moving bed operation was technically feasible; therefore, chemical looping combustion using solid waste as fuel can be considered as an alternative technology for solid waste treatment.