Performance Evaluation of an Indirect Fired Rotary Kiln Gasifier


Dicks, J. B.


This paper discusses the experience in testing the Indirect Fired Rotary Kiln Gasifier invented by Thomas Parker. The unit is a rotary kiln design with inserted fire tubes. Part of the gas produced is used to fire the radiant fire tubes supplying the energy for gasifying the feed material. The unit has been operated on a variety of feed stocks including wood wastes, rubber, sewer sludge, refuse derived fuel (RDF), and blended mixtures of two or more types from above. A long-term run was conducted using 300 1b/hr (136 kg/hr) of pine sawdust. The unit operated flawlessly producing 465-490 Btu/SCF (16. 5-17. 4 MJ/Nm**3) gas under 1500-1600 degree F (1089-1144 K) operating temperature. The gasification efficiency was 70% with 40% of the gas used to operate the burners in the self-sustaining mode. Difficulty encountered when gasifying fluff RDF was solved by installing a cyclone to improve the solid separation.

Meeting Name

11th Annual Energy-Sources Technology Conference and Exhibition


Mechanical and Aerospace Engineering

Keywords and Phrases

Economic Analysis; Gas Composition Analysis; Gasification Efficiency; Indirect Fired Rotary Kiln Gasifier; Pilot Plant Performance

Document Type

Article - Conference proceedings

Document Version


File Type





© 1988 American Society of Mechanical Engineers (ASME), Petroleum Division, All rights reserved.

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