Hybrid sulfur cycle for H-2 production: A sensitivity study of the electrolysis step in a filter-press cell

作者：Charton Sophie^*; Janvier Josselin; Rivalier Patrick; Chainet Eric; Caire Jean Pierre

来源：International Journal of Hydrogen Energy, 2010, 35(4): 1537-1547.

DOI：10.1016/j.ijhydene.2009.12.046

• Hybrid Sulfur (HyS) cycle
• Anodic overpotential
• Cell voltage minimization
• Biphasic flow
• SO2 crossover

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.

• 出版日期2010-2
• 单位中国地震局