A process for selective removal of a product from a gaseous system

Abstract

A process for selective removal of a gaseous product (P) from a gaseous system comprising said product and other components (Rl, R2), wherein the gaseous system is admitted to a first environment, which is separated from a second environment by a boundary wall, and a permeation membrane (3, 300) forms at least part of said boundary wall; a spatially non-uniform electric field (4) is generated between a first electrode or first plurality o f electrodes (1, 301) located in the first environment and a second electrode or second plurality o f electrodes (2, 302) located in the second environment, so that field lines of said non-uniform electric field cross said membrane, and a dielectrophoretic force generated on particles of said gaseous component (P) is at least part of a driving force of the permeation through said membrane, an amount of said product (P) being selectively removed from the first environment and collected in the second environment.