Comparison and optimization of different fuel processing options for biogas-fed solid-oxide fuel cell plants
نویسندگان
چکیده
The biogas needs to be reformed before electro-chemical conversion in the solid-oxide fuel cell, which can promoted efficiently with wise thermal management and reforming conditions. To ensure system safety catalysts durability, additional mineral-bearing water carbon deposition should avoided. This paper conducted a detailed biogas-SOFC CHP analysis considering four layouts, featuring hot cold recirculation of anode off-gas, partial oxidation complete internal reforming. process optimization sensitivity are performed design variables including ratio, external reformer temperature. supported SOFC operates at 800 °C 0.4 A/cm2 current density. results show that pre-reforming schemes achieve highest efficiency between 56% 63%. scheme has broader self-sufficient range eliminating risk ratio 42–78% temperature 400–650 °C. no achieves maximum 58% due dilution. Moreover, is limited 58.9%, given reaction less efficient than steam dry reactions. proposed layout could demonstrate feasibility different options especially on small scale high optimal integration opportunities.
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ژورنال
عنوان ژورنال: International Journal of Hydrogen Energy
سال: 2022
ISSN: ['0360-3199', '1879-3487']
DOI: https://doi.org/10.1016/j.ijhydene.2021.10.025