Comparative study of durability of hybrid direct carbon fuel cells with anthracite coal and bituminous coal

Cairong Jiang, Jianjun Ma, Ana Arenillas, A. Damiano Bonaccorso, John T. S. Irvine*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)
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Abstract

Direct carbon fuel cells offer the opportunity of generating energy from coal at high efficiency as an alternative to the procedure of conventional power plants. In this study, raw anthracite coal and raw bituminous coal were investigated in a hybrid direct carbon fuel cell (HDCFC), which was a combination of a solid oxide fuel cell and a molten carbonate fuel cell. Mechanical mixing was confirmed to be an efficient method of mixing coal with carbonate. The coal samples had different properties, for example, carbon content, hydrogen content, volatile matter and impurities. The results showed that the maximum power density obtained by the cell with anthracite coal was similar to that obtained by the cell with bituminous coal. It was found that the total power output from coal in HDCFCs mostly depended on the carbon content, while volatile matter, hydrogen content, moisture, etc. had an effect on the short-term durability. HDCFCs were kept operating for more than 120 h with 1.6 g coal. This study demonstrates that energy can be generated efficiently by employing anthracite and bituminous coal in hybrid direct carbon fuel cells.
Original languageEnglish
Pages (from-to)18797-18806
Number of pages10
JournalInternational Journal of Hydrogen Energy
Volume41
Issue number41
Early online date6 May 2016
DOIs
Publication statusPublished - 2 Nov 2016
Event3rd International Workshop on Molten Carbonates and Related Topics (IWMC) - Shenyang
Duration: 11 Jun 201513 Jun 2015

Keywords

  • Direct carbon fuel cells
  • Anthracite coal
  • Bituminous coal
  • Maximum power density
  • Durability

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