Gas Turbine Applications for Large Air Separation Units FREE

[+] Author Affiliations
A. R. Smith, J. L. Dillon, IV

Air Products and Chemicals, Inc., Allentown, PA

Paper No. 99-GT-321, pp. V002T01A010; 6 pages
  • ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations
  • Indianapolis, Indiana, USA, June 7–10, 1999
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7859-0
  • Copyright © 1999 by ASME


Oxygen production rates of 10,000 to 20,000 tons per day from large, cryogenic air separation units are being studied by many alternative fuel project developers. These projects utilize oxygen to partially oxidize hydrocarbon materials, producing a clean synthesis gas that can be used as a fuel or for conversion into valuable chemical products. Specific market applications include natural gas or waste material conversion processes and multi-train integrated gasification combined cycle facilities. In an effort to reduce specific facility cost project developers increase facility output to obtain economies of scale, resulting in large oxygen requirements for the partial oxidation step. One of the challenges to provide cost effective oxygen is the economic supply of large quantities of compressed air for use in the cryogenic air separation process. To date, gas turbines have found limited application for use in air separation facilities due to their relatively high capital cost compared to traditional electric motor drives. The need for large, single train air separation units to support alternative fuel projects creates opportunities for the use of gas turbines. This paper explores the use of commercially available equipment, configured to integrate with air separation processes, to improve the economics of oxygen production. Long term developmental equipment configurations are presented to further improve the economics of these facilities.

Copyright © 1999 by ASME
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