Abstract
A comparative study between monometallic (Me-CeO2, Me = Zn, Cu, Fe and Co) and Ni-doped bimetallic (Me-Ni-CeO2) catalysts has been performed in the high temperature water-gas shift (HT-WGS) reaction using waste derived synthesis gas. Experimental results revealed that Me-Ni-CeO2 exhibited higher catalytic performance than simple Me-CeO2 catalysts. Within the Me-Ni-CeO2 series, Co-Ni-CeO2 exhibited excellent and stable catalytic performance (CO conversion > 90%) at a very high GHSV of 143,000 h-1. The existence of high concentration of Ce3+ ions and oxygen vacancies on the catalyst surface were responsible for the increased WGS activity of Co-Ni-CeO2. In addition, Co-Ni-CeO2 maintains a stable performance for 50 h. However, commercial Fe2O3-Cr2O3 catalyst showed a steep decline from their initial CO conversion values 15-10% within 5 h.
| Original language | English |
|---|---|
| Pages (from-to) | 21-31 |
| Number of pages | 11 |
| Journal | Applied Catalysis A: General |
| Volume | 522 |
| DOIs | |
| Publication status | Published - 2016 Jul 25 |
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All Science Journal Classification (ASJC) codes
- Catalysis
- Process Chemistry and Technology
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Chromium free high temperature water-gas shift catalyst for the production of hydrogen from waste derived synthesis gas. / Jha, Ajay; Jeong, Dae Woon; Lee, Yeol Lim; Jang, Won Jun; Shim, Jae Oh; Jeon, Kyung Won; Rode, Chandrashekhar V.; Roh, Hyun Seog.
In: Applied Catalysis A: General, Vol. 522, 25.07.2016, p. 21-31.Research output: Contribution to journal › Article
TY - JOUR
T1 - Chromium free high temperature water-gas shift catalyst for the production of hydrogen from waste derived synthesis gas
AU - Jha, Ajay
AU - Jeong, Dae Woon
AU - Lee, Yeol Lim
AU - Jang, Won Jun
AU - Shim, Jae Oh
AU - Jeon, Kyung Won
AU - Rode, Chandrashekhar V.
AU - Roh, Hyun Seog
PY - 2016/7/25
Y1 - 2016/7/25
N2 - A comparative study between monometallic (Me-CeO2, Me = Zn, Cu, Fe and Co) and Ni-doped bimetallic (Me-Ni-CeO2) catalysts has been performed in the high temperature water-gas shift (HT-WGS) reaction using waste derived synthesis gas. Experimental results revealed that Me-Ni-CeO2 exhibited higher catalytic performance than simple Me-CeO2 catalysts. Within the Me-Ni-CeO2 series, Co-Ni-CeO2 exhibited excellent and stable catalytic performance (CO conversion > 90%) at a very high GHSV of 143,000 h-1. The existence of high concentration of Ce3+ ions and oxygen vacancies on the catalyst surface were responsible for the increased WGS activity of Co-Ni-CeO2. In addition, Co-Ni-CeO2 maintains a stable performance for 50 h. However, commercial Fe2O3-Cr2O3 catalyst showed a steep decline from their initial CO conversion values 15-10% within 5 h.
AB - A comparative study between monometallic (Me-CeO2, Me = Zn, Cu, Fe and Co) and Ni-doped bimetallic (Me-Ni-CeO2) catalysts has been performed in the high temperature water-gas shift (HT-WGS) reaction using waste derived synthesis gas. Experimental results revealed that Me-Ni-CeO2 exhibited higher catalytic performance than simple Me-CeO2 catalysts. Within the Me-Ni-CeO2 series, Co-Ni-CeO2 exhibited excellent and stable catalytic performance (CO conversion > 90%) at a very high GHSV of 143,000 h-1. The existence of high concentration of Ce3+ ions and oxygen vacancies on the catalyst surface were responsible for the increased WGS activity of Co-Ni-CeO2. In addition, Co-Ni-CeO2 maintains a stable performance for 50 h. However, commercial Fe2O3-Cr2O3 catalyst showed a steep decline from their initial CO conversion values 15-10% within 5 h.
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UR - http://www.scopus.com/inward/citedby.url?scp=84964667599&partnerID=8YFLogxK
U2 - 10.1016/j.apcata.2016.04.027
DO - 10.1016/j.apcata.2016.04.027
M3 - Article
AN - SCOPUS:84964667599
VL - 522
SP - 21
EP - 31
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
SN - 0926-860X
ER -