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Abstract
Two-stage anaerobic digestion enables the production of biohythane, which is composed of 60/30/10 vol% CH4/CO2/H2 and is easier and more beneficial to utilize than conventional biogas (60/40 vol% CH4/CO2). This study has investigated co-electrolysis of biohythane with H2O and CO2 using an anode-supported solid oxide fuel cell. The kinetic performance of the cell was characterized using I-V curves and electrochemical impedance spectroscopy. The output gases from the anode were characterized using quadrupole mass spectrometry. The work has shown that addition of 10 vol% H2 to CH4/CO2 feedstocks markedly improves the overall performance of the cell in electrolysis mode. Co-electrolyzing with H2O gave the highest performance, highest syngas (H2 + CO) yield (87%) and highest H2/CO ratio (2.69). Co-electrolyzing with CO2 decreased the catalytic and electrochemical conversion of reactants, giving lower performance, lower syngas yields (79%) and lower H2/CO ratios (0.87). Enhanced performance with H2O was due to a mixture of increased catalytic and electrochemical conversion of reactants.
Original language | English |
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Title of host publication | ECS Transactions |
Subtitle of host publication | Solid Oxide Fuel Cells 16 (SOFC-XVI) |
Place of Publication | Pennington, NJ, USA |
Publisher | Electrochemical Society |
Chapter | 1 |
Pages | 2333-2342 |
Number of pages | 10 |
Volume | 91 |
Edition | 1 |
ISBN (Electronic) | 978-1-60768-874-7 |
ISBN (Print) | 1938-6737 |
DOIs | |
Publication status | Published - 8 Sept 2019 |
Event | 16th International Symposium on Solid Oxide Fuel Cells 2019 - Kyoto Terrsa , Kyoto, Japan Duration: 8 Sept 2019 → 13 Sept 2019 Conference number: 16th |
Conference
Conference | 16th International Symposium on Solid Oxide Fuel Cells 2019 |
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Abbreviated title | SOFC-XVI |
Country/Territory | Japan |
City | Kyoto |
Period | 8/09/19 → 13/09/19 |
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Dive into the research topics of 'Co-electrolysis of Biohythane using Solid Oxide Fuel Cell Technology'. Together they form a unique fingerprint.Activities
- 2 Participation in workshop, seminar, course
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FCHEA Road Map to a U.S. Hydrogen Economy National Launch
James Reed (Attendee)
7 Oct 2020Activity: Participating in or organising an event › Participation in workshop, seminar, course
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UK HFCA and Hydrogen Council. Hydrogen's role in the Post COVID recovery: UK and International
James Reed (Attendee)
30 Sept 2020Activity: Participating in or organising an event › Participation in workshop, seminar, course