期刊
JOURNAL OF POWER SOURCES
卷 477, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2020.229007
关键词
Flame-assisted fuel cell (FFC); Solid oxide fuel cell (SOFC); Micro flow reactor; Microcombustion; Partial oxidation; Hydrogen production
资金
- National Science Foundation [1746928]
- National Science Foundation Graduate Research Opportunities Worldwide
- JSPS KAKENHI [JP16H06068]
- Direct For Education and Human Resources
- Division Of Graduate Education [1746928] Funding Source: National Science Foundation
The increase in production and decrease in cost of natural gas have made it a viable alternative fuel to petroleum and coal power-based systems. The thermal partial oxidation of natural gas has been investigated previously, but few have investigated the effects of lower concentration hydrocarbons on reforming characteristics; especially at low temperatures (<1000 degrees C). This study investigates the microcombustion reforming of methane/air and natural gas/air utilizing heat recirculation to achieve high synthesis gas production. Maximum wall temperatures of 800-1000 degrees C at total flow rates of 10 and 50 mL min(-1) are investigated. Equivalence ratios 1-5 are investigated with no soot formation present in the reactor at 800 degrees C and 900 degrees C. Natural gas is found to reform similar to 130% more than methane at 800 degrees C and 50 mL min(-1) total flow rate due to low concentration hydrocarbons found in natural gas. A micro-tubular solid oxide fuel cell (mT-SOFC) is integrated into the natural gas/air microcombustion exhaust and characterized. The mT-SOFC operating in microcombustion exhaust achieves a high fuel utilization of 60% and 84% of the power density of a natural gas baseline. Three short-term tests are performed comparing the stability of natural gas and natural gas microcombustion in a mT-SOFC.
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