PYROLYSIS OF PLASTIC WASTES USING THE NON-CATALYTIC HAMBURG-PROCESS AND A CATALYTIC PROCESS USING THE CYCLED-SPHERES-REACTOR

Kim, Joo-Sik

doi:2004.9.1.31

Environmental Engineering Research 2004;9(1): 31-37. DOI: https://doi.org/10.4491/eer.2004.9.1.031

PYROLYSIS OF PLASTIC WASTES USING THE NON-CATALYTIC HAMBURG-PROCESS AND A CATALYTIC PROCESS USING THE CYCLED-SPHERES-REACTOR

Joo-Sik Kim^†

Faculty of Environmental Engineering, University of Seoul, 90, Jeonnong-Dong, Dongdaemun-Gu, Seoul 130-743, Korea

Corresponding Author: Joo-Sik Kim ,Tel: +82-2-2210-5621, Fax: +82-2-2244-2245, Email: joosik@uos.ac.kr

Received: April 16, 2003; Accepted: February 8, 2004.

ABSTRACT

Mixed waste plastics from the DSD (Duales System Deutschland) were degraded by the Hamburg-Process using a fluidized-bed. The experiments purposed to obtain oils and heat-providing gas. Experimental results from the laboratory-scale- and pilot-scale- Hamburg Process were compared and analyzed. The most important products were BTX and styrene. On the other hand, a commercially available sample of polyethylene was decomposed over zeolites in the cycled-spheres-reactor. In the experiments, Y-type zeolites showed lower activity and higher deactivation than H-ZSM-5. H-ZSM-5 and Y-type zeolite of higher module showed less deactivation, but lower activity than those of lower module.

Keywords: Pyrolysis | BTX-aromatics | Zeolite | Fluidized-bed | Cycled-Spheres-Reactor