Technology Reviews

Thermal Pyrolysis of Polyethylene in Fluidized Beds: Review of the Influence of Process Parameters on Product Distribution

[+] Author and Article Information
K. Suresh Kumar Reddy1

Pravin Kannan, Ahmed Al Shoaibi, C. Srinivasakannan

 Chemical Engineering Department,The Petroleum Institute, P.O. Box 2533, Abu Dhabi, UAE


Corresponding author.

J. Energy Resour. Technol 134(3), 034001 (Jun 08, 2012) (6 pages) doi:10.1115/1.4006790 History: Received March 15, 2011; Revised April 22, 2012; Published June 07, 2012; Online June 08, 2012

The present work is an attempt to compile and analyze the most recent literature pertaining to thermal pyrolysis of plastic waste using fluidized bed reactors. The review is short owing to the small number of work reported in the open literature in particular to the fluidized beds. Although works on pyrolysis are reported in fixed beds, autoclaves, and fluidized beds, vast majority of them address to the utilization of fluidized bed due to their advantages and large scale adaptability. The pyrolysis temperature and the residence time are reported to have major influence on the product distribution, with the increase in pyrolysis temperature favoring gas production, with significant reduction in the wax and oil. The pyrolysis gas generally contains H2 , CO, CO2 , CH4 , C2 H4 , C2 H6 while liquid product comprises benzene, toluene, xylene, styrene, light oil, heavy oil, and gasoline with the variations depending on process conditions. The effects of other process parameters, namely fuel feed rate, fuel composition, and fluidizing medium have been reviewed and presented.

Copyright © 2012 by American Society of Mechanical Engineers
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Grahic Jump Location
Figure 1

Plastics pyrolysis reaction scheme



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