Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 231-235 |
| Number of pages | 5 |
| Journal | Bulletin of the Korean Chemical Society |
| Volume | 35 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2014 Jan 20 |
| Externally published | Yes |
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Keywords
- Autothermal reforming
- Bimetallic catalyst
- Carbon coking
- CeO-Al O Gasoline
ASJC Scopus subject areas
- Chemistry(all)
Cite this
Rh-Ni and Rh-Co catalysts for autothermal reforming of gasoline. / Jung, Yeon Gyu; Lee, Dae Hyung; Kim, Yongmin; Lee, Jin Hee; Nam, SukWoo; Choi, Dae Ki; Yoon, Chang Won.
In: Bulletin of the Korean Chemical Society, Vol. 35, No. 1, 20.01.2014, p. 231-235.Research output: Contribution to journal › Article
}
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, SukWoo
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
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 -