Integration of oxygen plants and gas turbines in IGCC facilities

Conference · Tue Oct 01 04:00:00 EDT 1996

OSTI ID:376218

Smith, A R; Sorensen, J C; Woodward, D W ^[1]

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1. Air Products and Chemicals, Inc., Allentown, PA (United States)

The commercialization of Integrated Gasification Combined-Cycle (IGCC) power has been aided by concepts involving the integration of a cryogenic air separation unit (ASU) with the gas turbine combined-cycle module. It is known and now widely accepted that an ASU designed for elevated pressure service and optimally integrated with the gas turbine can increase overall IGCC power output, increase overall efficiency, and decrease the net cost of power generation compared to non-integrated facilities employing low pressure ASU`s. Depending upon the specific gas turbine, gasification technology, NO{sub x} emission specification, and other site specific factors, various degrees of compressed air and nitrogen integration are optimal. Air Products has supplied ASU`s with no integration (Destec/Plaquemine IGCC), nitrogen-only integration (Tampa Electric/Polk County IGCC), and full air and nitrogen integration (Demkolec/Buggenum IGCC). Continuing advancements in both air separation and gas turbine technologies offer new integration opportunities to further improve performance and reduce costs. This paper reviews basic integration principles, highlights the integration scheme used at Polk County, and describes some advanced concepts based on emerging gas turbines. Operability issues associated with integration will be reviewed and control measures described for the safe, efficient, and reliable operation of these facilities.

• OSTI ID: 376218
• Report Number(s): CONF-960426--
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
COAL GASIFICATION
COMBINED-CYCLE POWER PLANTS
CRYOGENIC FLUIDS
DUAL-PURPOSE POWER PLANTS
EFFICIENCY
GAS TURBINES
LIQUEFIED GASES
OXYGEN ENRICHMENT
OXYGEN PLANTS