TY - JOUR
T1 - Rh-Ni and Rh-Co catalysts for autothermal reforming of gasoline
AU - Jung, Yeon Gyu
AU - Lee, Dae Hyung
AU - Kim, Yongmin
AU - Lee, Jin Hee
AU - Nam, Suk Woo
AU - Choi, Dae Ki
AU - Yoon, Chang Won
PY - 2014/1/20
Y1 - 2014/1/20
N2 - Rh doped Ni and Co catalysts, Rh-M/CeO2(20 wt %)-Al 2O3 (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 oC under the conditions of a S/C 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/CeO 2(20 wt %)-Al2O3 catalyst (1) exhibited excellent activities, with H2 and (H2+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.
AB - Rh doped Ni and Co catalysts, Rh-M/CeO2(20 wt %)-Al 2O3 (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 oC under the conditions of a S/C 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/CeO 2(20 wt %)-Al2O3 catalyst (1) exhibited excellent activities, with H2 and (H2+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.
KW - Autothermal reforming
KW - Bimetallic catalyst
KW - Carbon coking
KW - CeO-Al O Gasoline
UR - http://www.scopus.com/inward/record.url?scp=84892907131&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84892907131&partnerID=8YFLogxK
U2 - 10.5012/bkcs.2014.35.1.231
DO - 10.5012/bkcs.2014.35.1.231
M3 - Article
AN - SCOPUS:84892907131
VL - 35
SP - 231
EP - 235
JO - Bulletin of the Korean Chemical Society
JF - Bulletin of the Korean Chemical Society
SN - 0253-2964
IS - 1
ER -