Liquid Ion Solutions LLC, with Penn State University and Carbon Capture Scientific (CCS), LLC, will develop and validate a transformational hybrid membrane/solvent system for post-combustion carbon dioxide (CO2) capture from flue gas. The hybrid technology is a two-stage CO2 capture system combining a membrane separation process and an absorption/stripping process with heat integration between the absorption column and stripping column through a heat pump cycle. Process air is used to sweep the stripper, resulting in much lower regeneration temperatures and enabling heat integration to the point that no process steam is required. To reduce capital cost, a next-generation membrane technology with higher permeance will be developed.