Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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F01K
STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
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21/00
Steam engine plants not otherwise provided for
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F01K21/04
using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas
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F01K21/047
having at least one combustion gas turbine
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F01K21/047

Parallel heat recovery in gas power generation
12546236 · 2026-02-10 · ·

A modified combined-cycle gas power system includes a mixed fuel preheat coil, a heat recovery steam generator (HRSG), and a parallel connection coupling a gas turbine to the mixed fuel preheat coil and the HRSG for receiving gas turbine exhaust (GTE). In some cases, the system further includes a GTE flow controller coupled to the parallel connection to control a ratio of the GTE received by the mixed fuel preheat coil and the HRSG. In some cases, the parallel connection from the gas turbine to the mixed fuel preheat coil and the HRSG is a single exhaust duct having an internal separator baffle. In some cases, the parallel connection from the gas turbine to the mixed fuel preheat coil and the HRSG is dual exhaust ducts. In some cases, the mixed fuel preheat coil does not include a burner or catalyst for generating reformed fuel.