A Partial Oxidation Staging Concept for Gas Turbines Using Broadened Specification Fuels

[+] Author and Article Information
R. M. Clayton

Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA

J. Eng. Power 102(2), 427-433 (Apr 01, 1980) (7 pages) doi:10.1115/1.3230274 History: Received January 04, 1979; Online September 28, 2009


A concept is described for using a very fuel-rich partial oxidation process as the first stage of a two-stage combustion system for onboard processing of broadened specification fuels to improve their combustion characteristics. Results of an initial step in the experimental verification of the concept are presented, where the basic benefits of H2 enrichment are shown to provide extended lean-combustion limits and permit simultaneous achievement of ultralow levels of NOx , CO, and HC emissions. The H2 required to obtain these results is within the range available from a partial oxidation precombustion stage. Operation of a catalytic partial oxidation reactor using a conventional aviation turbine fuel (JP5) and an unconventional fuel (blend of JP5/xylene) is shown to produce a “fuel gas” stream with near-theoretical equilibrium H2 content. However, a number of design considerations indicate that the precombustion stage should be incorporated as a thermal reaction.

Copyright © 1980 by ASME
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