Power plant emissions reduction

摘要

A system for improved emissions performance of a power plant generally includes an exhaust gas recirculation system having an exhaust gas compressor disposed downstream from the combustor, a condensation collection system at least partially disposed upstream from the exhaust gas compressor, and a mixing chamber in fluid communication with the exhaust gas compressor and the condensation collection system, where the mixing chamber is in fluid communication with the combustor.

主权项

1. A method for improved emissions performance of a gas turbine having a compressor section, a combustor, a turbine section and a fuel supply system, the method comprising:
a. flowing an exhaust gas from the turbine section through a condensation collection system; b. condensing water vapor from the exhaust gas via the condensation collection system to provide a de-moisturized exhaust gas downstream from the condensation collection system; c. progressively compressing the de-moisturized exhaust gas via an axial flow compressor; d. flowing the compressed de-moisturized exhaust gas and the condensed water vapor to a mixing chamber; e. remixing the condensed water vapor and the compressed de-moisturized exhaust gas to produce a re-moisturized exhaust gas; and f. flowing the re-moisturized exhaust gas to at least one of the fuel supply system, the compressor section or the combustor of the gas turbine.