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Institutional Repository [SANDBOX]
Technical University of Crete
Technical University of Crete
EN
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| URI: | http://purl.tuc.gr/dl/dias/81D7450C-6CFC-461E-AC10-CC3D0CC7D44E | ||
| Year | 2014 | ||
| Type of Item | Conference Full Paper | ||
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| Bibliographic Citation | D. Ipsakis, Tz. Kraia, G.E. Marnellos, M. Ouzounidou, S.Voutetakis, R.Dittmeyer, A.Dubbe, K. Haas-Santo, M. Konsolakis, H.E.Figen, N.O.Güldal, S.Z.Baykara, “An Electrocatalytic Membrane-assisted Process for Hydrogen Production from H2S in Black Sea: Preliminary Studies” in 13th International Conference on Clean Energy, Istanbul, Turkey, 2014. https://doi.org/10.1016/j.ijhydene.2014.12.017 | ||
| Appears in Collections |
The feasibility of hydrogen production by the decomposition of H2S in an electrocatalytic membrane reactor for the exploitation of H2S contained in Black Sea water is investigated. A micro-structured electrochemical membrane reactor with a proton-conducting ceramic membrane is considered for processing gaseous H2S diluted (1 vol.%) in H2O mixtures. Y-doped barium zirconate (BaZr0.85Y0.15O3−δ) is employed as solid electrolyte. Ceria supported transition metal (Co, Ni, Fe, Cu) catalysts and LaCrO3 composites are explored as anode materials and La0.6Sr0.4Co0.2Fe0.8O3−δ perovskite type oxides are used as cathode electrodes. Preliminary results concern materials preparation and characterization of the catalytic performance of anodic electrode materials. Co/CeO2 composites show excellent H2S conversion and stability performance in wet and dry atmospheres at 873–1123 K. Presence of water has a beneficial effect on the H2 formation, in accordance with thermodynamics. The overall process starting from H2S containing sea water to H2 generation in the membrane reactor and H2SO4 production in a sequential step is simulated and its energy balance is discussed.
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