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Title: Thermochemically recuperated and steam cooled gas turbine system

A gas turbine system in which the expanded gas from the turbine section is used to generate the steam in a heat recovery steam generator and to heat a mixture of gaseous hydrocarbon fuel and the steam in a reformer. The reformer converts the hydrocarbon gas to hydrogen and carbon monoxide for combustion in a combustor. A portion of the steam from the heat recovery steam generator is used to cool components, such as the stationary vanes, in the turbine section, thereby superheating the steam. The superheated steam is mixed into the hydrocarbon gas upstream of the reformer, thereby eliminating the need to raise the temperature of the expanded gas discharged from the turbine section in order to achieve effective conversion of the hydrocarbon gas.
Inventors:
 [1];  [2]
  1. (Longwood, FL)
  2. (Winter Springs, FL)
Issue Date:
OSTI Identifier:
869964
Assignee:
Westinghouse Elec Corp (Pittsburgh, PA) NETL
Patent Number(s):
US 5431007
Contract Number:
AC21-93MC30247
Research Org:
WESTINGHOUSE ELECTRIC CORP
Country of Publication:
United States
Language:
English
Subject:
thermochemically; recuperated; steam; cooled; gas; turbine; expanded; section; generate; heat; recovery; generator; mixture; gaseous; hydrocarbon; fuel; reformer; converts; hydrogen; carbon; monoxide; combustion; combustor; portion; cool; components; stationary; vanes; superheating; superheated; mixed; upstream; eliminating; raise; temperature; discharged; achieve; effective; conversion; turbine section; gaseous hydrocarbon; superheated steam; heat recovery; cooled gas; hydrocarbon gas; hydrocarbon fuel; steam generator; carbon monoxide; gas turbine; gas discharge; steam cooled; heated steam; gas discharged; stationary vane; /60/