Pd-Ag Membrane Reactors for Water Gas Shift Reaction

Publisher Summary This chapter discusses the synthesis, characterization, and applications of palladium membranes. The main role of the membrane film is to control the exchange of materials between two adjacent fluid phases. A membrane is able to act as a selective barrier, which separates different species either by sieving or by controlling their relative rate of transport through itself. Transport processes across the membrane are the result of a driving force associated with a gradient of concentration, pressure, temperature, and electric potential. The synthesis of stable microporous or dense inorganic materials for the preparation of membranes is the key factor for increasing the application of membrane-based reactive separations in the catalysis field. An important step before using a membrane in a separation or a reaction system is its characterization in terms of permeation as well as morphology.

Synthesis, characterization, and applications of palladium membranes

Methanol and ethanol steam reforming in membrane reactors : an experimental study

Design and process study of Pd membrane reactors

Overview of Pd-based membranes for producing pure hydrogen and state of art at ENEA laboratories

Cold-rolled and annealed Pd-Ag 25% at. foils of thickness 50 μm have been joined by diffusion bonding in order to obtain permeator tubes used in laboratory applications for hydrogen separation and purification. The tubes produced present a sound and effective joint along the generatrix line: particularly, this procedure has shown better performance than arc welding, responsible for formation of thermally stressed zones and embrittlement of permeators.

S. Tosti

Papers

Diffusion bonding of pd-ag rolled membranes