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Rh-Ni and Rh-Co Catalysts for Autothermal Reforming of Gasoline

Authors
Jung, Yeon-GyuLee, Dae HyungKim, YongminLee, Jin HeeNam, Suk-WooChoi, Dae-KiYoon, Chang Won
Issue Date
20-1월-2014
Publisher
WILEY-V C H VERLAG GMBH
Keywords
Autothermal reforming; Bimetallic catalyst; CeO2-Al2O3; Gasoline; Carbon coking
Citation
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.35, no.1, pp.231 - 235
Indexed
SCIE
SCOPUS
KCI
Journal Title
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
Volume
35
Number
1
Start Page
231
End Page
235
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/99521
DOI
10.5012/bkcs.2014.35.1.231
ISSN
0253-2964
Abstract
Rh doped Ni and Co catalysts, Rh-M/CeO2(20 wt %)-Al2O3 (0.2 wt % of Rh; M = Ni or Co, 20 wt %) were synthesized to produce hydrogen via autothermal reforming (ATR) of commercial gasoline at 700 degrees C under the conditions of a SIC ratio of 2.0, an O/C ratio of 0.84, and a gas hourly space velocity (GHSV) of 20,000 h(-1). The Rh-Ni/CeO2(20 wt %)-Al2O3 catalyst (1) exhibited excellent activities, with H-2 and (H-2+CO) yields of 2.04 and 2.58 mol/mol C, respectively. In addition, this catalyst proved to be highly stable over 100 h without catalyst deactivation, as evidenced by energy dispersive spectroscopy (EDX) and elemental analyses. Compared to 1, Rh-Co/CeO2(20 wt %)-Al2O3 catalyst (2) exhibited relatively low stability, and its activity decreased after 57 h. In line with this observation, elemental analyses confirmed that nearly no carbon species were formed at 1 while carbon deposits (10 wt %) were found at 2 following the reaction, which suggests that carbon coking is the main process for catalyst deactivation.
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