Chapter 13 Economics of gas separation membrane processes

Abstract

Publisher Summary This chapter discusses economics of gas separation membrane processes. A gas separation membrane separates gas species (gas/gas separation) and is distinctly different from gas filtration (gas/solid separation). A gas separation membrane preferentially removes one or more components of a gas mixture that is passed across a membrane surface. The fact that no mechanical or chemical processes are involved makes the membrane process simple and easy to operate. The simplicity of the gas separation membrane process gives it special appeal when one considers the complexity of competing processes. Gas separation membranes, however, do not offer a separation solution that is particularly unique over the more traditional gas separation processes. Gas separation membrane processes compete with cryogenics and a wide variety of chemical and physical adsorption and absorption processes (e.g., amine absorption, pressure swing adsorption, carbon bed adsorption, etc.). In the case of air separation, membranes compete with the on-site production or delivery of oxygen and nitrogen liquids or gases.