ECI Digital Archives

Title

On the novel chemical switching reforming (csr) reactor for hydrogen production with integrated co2 capture

Authors

Solomon A. Wassie, Norwegian University of Science and Technology, Department of Energy and Process Engineering, Trondheim, Norway ; Chemical Process Intensification, Eindhoven University of Technology, Department of Chemical Engineering and Chemistry, Eindhoven, NetherlandsFollow
Schalk Cloete, SINTEF Materials and Chemistry, Flow Technology Department, Trondheim, Norway
Abdelghafour Zaabout, SINTEF Materials and Chemistry, Flow Technology Department, Trondheim, Norway
Martin van Sint Annaland, Chemical Process Intensification, Eindhoven University of Technology, Department of Chemical Engineering and Chemistry, Eindhoven, Netherlands
Fausto Gallucci, Chemical Process Intensification, Eindhoven University of Technology, Department of Chemical Engineering and Chemistry, Eindhoven, Netherlands
Shahriar Amini, Norwegian University of Science and Technology, Department of Energy and Process Engineering, Trondheim ; SINTEF Materials and Chemistry, Flow Technology Department, Trondheim, Norway

Conference Dates

May 22-27, 2016

Abstract

Membrane reactors has recently emerged as one of the most promising technologies for pure hydrogen production as these reactors integrate the catalytic reactions, mostly reforming and water-gas shift reactions for hydrogen generation, and separation through membranes in a single unit. This combination of process units brings a high degree of process intensification with additional benefits in terms of increased process efficiencies. Recently, a novel MA-fluidized bed reactor concept has been proposed for pure hydrogen production with integrated CO2 capture from steam methane reforming. The so-called Chemical Switching Reforming reactor utilizes an oxygen carrier which acts as catalyst and heat carrier to the endothermic reforming reaction and is periodically exposed to fuel/steam and air streams; when air is fed to the reactor, the oxygen carrier is heated by the exothermic solids oxidation reaction, this heat is then utilized in the fuel stage where endothermic reduction and catalytic reactions regenerate the oxygen carrier and produce syngas. A hydrogen perm-selective membrane (¨thin-Pd-membrane) is used to directly recover pure hydrogen produced during steam-methane reforming while simultaneously shifting steam reforming and water-gas shift reactions equilibria towards complete conversion at lower temperatures. The CSR concept brings large benefits in design simplification, scale up and ease of operation at elevated pressure.

This paper presents preliminary experimental tests on a lab scale CSR reactor (

Fig. 3) without membrane operated under auto-thermal reforming (ATR) conditions. Experimental tests investigating the influence of reactor temperature, steam to carbon ratio and feed flowrate on the reactor performance will be presented.

Please click Additional Files below to see the full abstract.

Recommended Citation

Solomon A. Wassie, Schalk Cloete, Abdelghafour Zaabout, Martin van Sint Annaland, Fausto Gallucci, and Shahriar Amini, "On the novel chemical switching reforming (csr) reactor for hydrogen production with integrated co2 capture" in "Fluidization XV", Jamal Chaouki, Ecole Polytechnique de Montreal, Canada Franco Berruti, Wewstern University, Canada Xiaotao Bi, UBC, Canada Ray Cocco, PSRI Inc. USA Eds, ECI Symposium Series, (2016). https://dc.engconfintl.org/fluidization_xv/127