Mesoporous Fe2O3-CeO2-Al2O3 Oxygen Carrier for Chemical Looping Dry Reforming with Subsequent Water Splitting

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 28
  • Download : 0
A combined chemical looping dry reforming (CLDR) of methane and separate water splitting process was devised to produce syngas and hydrogen, respectively. A nonstoichiometric methane-carbon dioxide mixture was supplied to the oxygen carrier to partially oxidize methane and produce syngas. The composition of the syngas was adjusted by changing the methane-to-carbon dioxide ratio of the feed gas mixture. After syngas production, the oxygen-deficient oxygen carrier was replenished by splitting steam into molecular hydrogen and atomic oxygen. The iron-cerium-aluminum mixed oxygen carrier used was prepared by the sol-gel method and showed enhanced redox activity for the proposed CLDR-water splitting process. The mesoporous structure of the aluminum oxide framework and the cerium oxide nanocrystallite incorporated inside the porous structure of the oxygen carrier suppressed solid carbon formation. The hydrogen-to-carbon monoxide ratio of the syngas produced was stably maintained at 2:1 with a CH4 conversion of 0.95 and a CO selectivity of 0.76. Furthermore, hydrogen purity produced by the water splitting reaction was maintained at 0.90 over 20 cycles.
Publisher
AMER CHEMICAL SOC
Issue Date
2020-09
Language
English
Article Type
Article
Citation

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, v.59, no.36, pp.15912 - 15920

ISSN
0888-5885
DOI
10.1021/acs.iecr.0c03197
URI
http://hdl.handle.net/10203/276532
Appears in Collection
CBE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0