Sweep-based membrane gas separation integrated with gas-fired power generation and CO2 capture

摘要

Disclosed is a process that includes membrane-based gas separation and power generation, specifically a process for controlling carbon dioxide emissions from a gas-fired power plant. This process, like a conventional power plant, includes a compression step, a combustion step, and an expansion / power generation step. The process also includes a sweep driven membrane separation step and a carbon dioxide removal or capture step. The carbon dioxide removal step is performed on a portion of the gas from the compression step.