Abstract
Autothermal reforming of methane, which is combined of steam reforming and partial oxidation, was carried out with a disk-type porous Ni-Cr bulk catalyst in various reaction conditions. Although high methane conversion could be obtained by controlling reaction conditions such as reaction temperature, O2/C ratio, and S/C ratio, the optimal condition for maximal H2 and CO generation was shown at a different reaction condition, because H2 and CO were products of partially oxidized methane. The activity of porous Ni-Cr bulk catalyst was well maintained for On-Off test and 260 h operation of ATR. The deactivation of a reforming catalyst has generally been caused by the carbon deposition on the active site of Ni. In the case of bulk Ni, however, the oxidation of Ni was an inevitable and severe problem in the autothermal reforming of methane. An interesting fact was observed during On-Off test, which was named a bounce phenomenon in this work. It was caused by oxidation of Ni for On-Off process and the transient reduction of the oxidized Ni catalyst in ATR reaction.
| Original language | English |
|---|---|
| Pages (from-to) | 96-102 |
| Number of pages | 7 |
| Journal | Catalysis Today |
| Volume | 146 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 2009 Aug 15 |
| Externally published | Yes |
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Keywords
- ATR
- Disk-type catalyst
- Methane reforming
- Ni bulk catalyst
- On-Off test
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)
Cite this
Disk-type porous Ni-Cr bulk catalyst for hydrogen production by autothermal reforming of methane. / Kim, Sung Ho; Chung, Ji Hye; Kim, Yun Tae; Han, Jonghee; Yoon, Sung Pil; Nam, SukWoo; Lim, Tae Hoon; Lee, Ho In.
In: Catalysis Today, Vol. 146, No. 1-2, 15.08.2009, p. 96-102.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Disk-type porous Ni-Cr bulk catalyst for hydrogen production by autothermal reforming of methane
AU - Kim, Sung Ho
AU - Chung, Ji Hye
AU - Kim, Yun Tae
AU - Han, Jonghee
AU - Yoon, Sung Pil
AU - Nam, SukWoo
AU - Lim, Tae Hoon
AU - Lee, Ho In
PY - 2009/8/15
Y1 - 2009/8/15
N2 - Autothermal reforming of methane, which is combined of steam reforming and partial oxidation, was carried out with a disk-type porous Ni-Cr bulk catalyst in various reaction conditions. Although high methane conversion could be obtained by controlling reaction conditions such as reaction temperature, O2/C ratio, and S/C ratio, the optimal condition for maximal H2 and CO generation was shown at a different reaction condition, because H2 and CO were products of partially oxidized methane. The activity of porous Ni-Cr bulk catalyst was well maintained for On-Off test and 260 h operation of ATR. The deactivation of a reforming catalyst has generally been caused by the carbon deposition on the active site of Ni. In the case of bulk Ni, however, the oxidation of Ni was an inevitable and severe problem in the autothermal reforming of methane. An interesting fact was observed during On-Off test, which was named a bounce phenomenon in this work. It was caused by oxidation of Ni for On-Off process and the transient reduction of the oxidized Ni catalyst in ATR reaction.
AB - Autothermal reforming of methane, which is combined of steam reforming and partial oxidation, was carried out with a disk-type porous Ni-Cr bulk catalyst in various reaction conditions. Although high methane conversion could be obtained by controlling reaction conditions such as reaction temperature, O2/C ratio, and S/C ratio, the optimal condition for maximal H2 and CO generation was shown at a different reaction condition, because H2 and CO were products of partially oxidized methane. The activity of porous Ni-Cr bulk catalyst was well maintained for On-Off test and 260 h operation of ATR. The deactivation of a reforming catalyst has generally been caused by the carbon deposition on the active site of Ni. In the case of bulk Ni, however, the oxidation of Ni was an inevitable and severe problem in the autothermal reforming of methane. An interesting fact was observed during On-Off test, which was named a bounce phenomenon in this work. It was caused by oxidation of Ni for On-Off process and the transient reduction of the oxidized Ni catalyst in ATR reaction.
KW - ATR
KW - Disk-type catalyst
KW - Methane reforming
KW - Ni bulk catalyst
KW - On-Off test
UR - http://www.scopus.com/inward/record.url?scp=67849088707&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67849088707&partnerID=8YFLogxK
U2 - 10.1016/j.cattod.2009.01.042
DO - 10.1016/j.cattod.2009.01.042
M3 - Article
AN - SCOPUS:67849088707
VL - 146
SP - 96
EP - 102
JO - Catalysis Today
JF - Catalysis Today
SN - 0920-5861
IS - 1-2
ER -