Hybrid sulfur cycle for H2 production: A sensitivity study of the electrolysis step in a filter-press cell

Autor: Patrick Rivalier, Eric Chainet, Jean-Pierre Caire, Josselin Janvier, Sophie Charton
Přispěvatelé: CEA (DSV-DBJC-SMMCB), Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces (LEPMI ), Institut de Chimie du CNRS (INC)-Institut National Polytechnique de Grenoble (INPG)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National Polytechnique de Grenoble (INPG)-Institut de Chimie du CNRS (INC)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: International Journal of Hydrogen Energy
International Journal of Hydrogen Energy, Elsevier, 2010, 35 (4), pp.1537-1547. ⟨10.1016/j.ijhydene.2009.12.046⟩
International Journal of Hydrogen Energy, 2010, 35 (4), pp.1537-1547. ⟨10.1016/j.ijhydene.2009.12.046⟩
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2009.12.046⟩
Popis: International audience; The sensitivity of a depolarized SO2 electrolyzer to various operating parameters has been investigated through numerical modeling. A simplified kinetic expression was first derived to relate the anodic overpotential to both temperature and sulfuric acid concentration. This model allows the cell voltage variation with these two parameters to be studied.The effect of the two-phase parameters associated with hydrogen bubble production was then investigated. Parameters such as electrolyzer orientation, forced convection flow and bubble size were considered.Finally, an overall SO2 balance equation was derived to estimate the sensitivity of SO2 crossover to the operating conditions.
Databáze: OpenAIRE