Systems and Methods for Carbon Dioxide Capture and Power Generation in Low Emission Turbine Systems

摘要

Systems, methods, and apparatus are provided for generating power in low emission turbine systems and separating the exhaust into rich CO2 and lean CO2 streams. In one or more embodiments, the exhaust is separated at an elevated pressure, such as between a high-pressure expansion stage and a low-pressure expansion stage.

主权项

1. A power generation system comprising:
a first compressor configured to receive and compress one or more oxidants to generate a compressed oxidant; a first combustion chamber configured to receive and substantially stoichiometrically combust the compressed oxidant and at least one first fuel to generate an exhaust stream; a first expander configured to receive the exhaust stream from the first combustion chamber and generate a gaseous exhaust stream; and a separator configured to receive and separate the exhaust stream into a CO2 rich stream and a CO2 lean stream, wherein the separator receives the exhaust stream directly from the combustion chamber and upstream of the first expander.