Conceptual Process Design and Techno-Economical Assessment of H2/CO2 Separation Using FricDiff Technology

Abstract

The technology of FricDiff, an abbreviation of Frictional Diffusion, can be used to separate gases by adding a third gas, a so-called sweep gas, to the system. It is based on the diffusion difference of the feed molecules in the sweep gas. FricDiff is a proven principle and works at lab scale. The aim of the research is to study the technical and economical feasibility of separating H2 and CO2 with a FricDiff separation process at large scale. It includes the design of H2/CO2 separation unit for a medium size power plant using IGCC technology and a feasibility study. The results are compared with other separation methods that are used to capture and separation CO2 from H2IRSProcess and EnergyMechanical, Maritime and Materials Engineerin