Chromium free high temperature water-gas shift catalyst for the production of hydrogen from waste derived synthesis gas

Ajay Jha; Dae Woon Jeong; Yeol Lim Lee; Won Jun Jang; Jae Oh Shim; Kyung Won Jeon; Chandrashekhar V. Rode; Hyun Seog Roh

doi:10.1016/j.apcata.2016.04.027

Chromium free high temperature water-gas shift catalyst for the production of hydrogen from waste derived synthesis gas

Ajay Jha, Dae Woon Jeong, Yeol Lim Lee, Won Jun Jang, Jae Oh Shim, Kyung Won Jeon, Chandrashekhar V. Rode, Hyun Seog Roh

Division of Environmental Engineering

Research output: Contribution to journal › Article

18 Citations (Scopus)

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	https://doi.org/10.1016/j.apcata.2016.04.027
Publication status	Published - 2016 Jul 25

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All Science Journal Classification (ASJC) codes

Catalysis
Process Chemistry and Technology

Cite this

Jha, A., Jeong, D. W., Lee, Y. L., Jang, W. J., Shim, J. O., Jeon, K. W., Rode, C. V., & Roh, H. S. (2016). Chromium free high temperature water-gas shift catalyst for the production of hydrogen from waste derived synthesis gas. Applied Catalysis A: General, 522, 21-31. https://doi.org/10.1016/j.apcata.2016.04.027

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title = "Chromium free high temperature water-gas shift catalyst for the production of hydrogen from waste derived synthesis gas",

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.",

author = "Ajay Jha and Jeong, {Dae Woon} and Lee, {Yeol Lim} and Jang, {Won Jun} and Shim, {Jae Oh} and Jeon, {Kyung Won} and Rode, {Chandrashekhar V.} and Roh, {Hyun Seog}",

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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

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AU - Jha, Ajay

AU - Jeong, Dae Woon

AU - Lee, Yeol Lim

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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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10.1016/j.apcata.2016.04.027