Efficient conversion of low concentration coal-bed methane into power via solid oxide fuel cells integrated with an activated catalyst-modified anode microchannel
ID:124 Submission ID:126 View Protection:ATTENDEE Updated Time:2022-05-24 09:33:55 Hits:805 Oral Presentation

Start Time:2022-05-27 11:40 (Asia/Shanghai)

Duration:20min

Session:[S7] Mineral Materials and Advanced Energy Materials » [S7-2] Mineral Materials and Advanced Energy Materials-2

No files

Abstract
Efficient utilization of oxygen-bearing low concentration coal-bed methane (LC-CBM) via solid oxide fuel cell (SOFC) device to generate power is highly attractive and receives tremendous attention. However, it is highly limited by the low conversion efficiency and coking tolerance during the operation. Hence, in this study, an anode with vertical microchannels coupled with highly active catalysts (Ni-Y2O3-Ce0.5Zr0.5O2) and anode functional layer are integrated in a SOFC reactor to boost the partial oxidation of methane (POM) efficiency and enlarge the active electrochemical reaction area. Benefiting from the integrated SOFC reactor, the methane conversion efficiency is increased from 23.59% to 43.22 % at 750°C when using 16% CH4-4%O2-80%N2 as fuel. Meanwhile, the related peak power density is increased from 904 mW cm-2 to 1208 mW cm-2. The integrated SOFC reactor can steadily operate at 750°C for more than 100 h without any degradation, indicating the excellent anti-coking performance. Consequently, the proposed integrated SOFC reactor provides a great application potential for the efficient utilization of LC-CBM.
Keywords
Low concentration coal-bed methane, Solid oxide fuel cells, Vertical microchannels, Surface modification, Infiltrating catalysts.
Speaker
Yang YANG
China University of Mining and Technology

Submission Author
Yang Yang China University of Mining and Technology
Tian Li China University of Mining and Technology
Peizhong Feng 中国矿业大学
Yihan Ling China University of Mining and Technology
Comment submit
Verification code Change another
All comments
Log in Register Submit Hotel