Ohmically heated ceramic asymmetric tubular membranes for gas separation
By Hancke, Ragnhild; Larsen, Thorbj
Published in Journal of Membrane Science
2018
Abstract
Mixed conducting dense ceramic gas separation membranes can be used in air separation for oxy-fuel and pre-combustion processes in CO2 capture schemes for emission-free power plants and chemical industries. Such membranes operate at high temperatures, and the energy penalty associated with heating the membranes with external electrical heaters or burners via the feed or sweep gas can be significantly reduced by adopting direct ohmic heating of the membrane. We demonstrate that tubular asymmetric gas separation membranes of La2NiO4+? and La0.87Sr0.13CrO3-? can be heated to temperatures in excess of 800