T. H. Y. Tran, W. G. Haije and J. Schoonman
Delft University of Technology, Faculty of Applied Sciences, Department ChemE, Delft, The Netherlands, and others

Series: Chemistry Research and Applications, Chemical Engineering Methods and Technology
BISAC: SCI013000

The two most significant industrial processes for hydrogen production from fossil fuels are coal gasification and steam reforming of natural gas. A membrane process for CO2-H2 separation is an attractive alternative to conventional technologies such as solvent scrubbing, pressure swing adsorption, and cryogenic distillation for capturing the CO2.

In principle, two different types of membranes are under development, dense Pd-alloy based and porous inorganic ceramic ones. The present contribution provides a literature overview of ceramic membranes and their performance which are currently under investigation for hydrogen separation at high temperatures, as well as recent research results by the authors. The scope of materials presented here is limited to those that are primarily based on sol-gel synthesis. (Imprint: Nova)