Control methods and valve arrangement for start-up and shut down or presssurized combustion and gasification systems integrated with a gas turbine.

摘要

A power plant having a system for converting coal to power in a gas turbine 16 comprises a coal fed pressurized circulating bed for converting coal to pressurized gases, a gas turbine 16 having a compressor 18 for pressurizing air for the pressurized circulating bed and expander 20 for receiving and expanding hot combustion gases for powering a generator 22, a first fast acting valve 28 for controlling the pressurized air, a second fast acting valve means 36 for controlling pressurized gas from the compressor 18 to the expander 20.