Patent ID: 9140186
Filing Date: 2015-09-22
Classification: B01D,F02C,F23C,F23J,F23L,H02K,Y02A,Y02C,Y02E

Abstract:
1. A gas separation and power generation process, comprising the following steps: (a) compressing an oxygen-containing stream in a compression apparatus, thereby producing compressed gas stream; (b) combusting a first portion of the compressed gas stream with a gaseous fuel in a combustion apparatus, thereby producing a combusted gas stream; (c) separating a second portion of the compressed gas stream in a gas separation apparatus adapted to selectively remove carbon dioxide, thereby producing a carbon-dioxide enriched stream and a carbon-dioxide-depleted stream; (d) routing the carbon-dioxide-depleted stream and the combusted gas stream as first and second working gas streams to a gas turbine apparatus mechanically coupled to an electricity generator, and operating the gas turbine apparatus, thereby generating electric power and producing a turbine exhaust stream; (e) passing at least a first portion of the turbine exhaust stream to a membrane separation step, wherein the membrane separation step comprises: (f) passing the permeate stream to step (a) as at least a portion of the oxygen-containing stream.