About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Materials for Energy Conversion and Storage VII
|
Presentation Title |
High-efficiency High Power Density Direct Carbon Fuel Cell |
Author(s) |
Christian Faria, Jun Lu, Adam C. Powell, Boyd Davis, Yu Zhong, Uday Pal |
On-Site Speaker (Planned) |
Christian Faria |
Abstract Scope |
A high-efficiency high-power-density direct carbon fuel cell is proposed which marries solid oxide fuel cell technology with steelmaking practice. This uses a cathode-supported solid electrolyte such as yttria-stabilized zirconia, and an iron- or manganese-based liquid alloy anode with high carbon solubility. Anode reaction kinetics are rapid due to carbon solubility and gas lift stirring, with the alloy selected by high-throughput CALPHAD modeling. A slag layer absorbs carbon fuel impurities such as silicon, sulfur and phosphorus. This talk will present thermodynamics, electrochemistry, and transport models to estimate electrical and thermal performance at various scales, with experimental validation using an electrolyte-supported fuel cell. It will also present a techno-economic model of cost, energy and net emissions for bioenergy and fossil energy with CO₂ capture and storage (CCS), with comparisons to conventional electricity generation with CCS such as integrated gasification combined cycle and solid oxide fuel cell systems. |
Proceedings Inclusion? |
Planned: |
Keywords |
Energy Conversion and Storage, Computational Materials Science & Engineering, Electrometallurgy |