Elucidating the effect of Ce/Zr ratio on high temperature shift activity with sulfur poisoning

Kyoung Jin Kim; Kyung Won Jeon; Ga Ram Hong; Byong Hun Jeon; Jong Wook Bae; Won Jun Jang; Yeol Lim Lee; Hyun Seog Roh

doi:10.1016/j.jiec.2022.08.041

Elucidating the effect of Ce/Zr ratio on high temperature shift activity with sulfur poisoning

Kyoung Jin Kim, Kyung Won Jeon, Ga Ram Hong, Byong Hun Jeon, Jong Wook Bae, Won Jun Jang, Yeol Lim Lee, Hyun Seog Roh

Division of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

To elucidate the effect of CeO₂/ZrO₂ ratio on the sulfur-tolerance in high temperature shift using waste derived synthesis gas, the Ce/Zr ratio in Pt/Ce_xZr_1-_xO₂ catalysts was systematically changed. Pt/Ce_xZr_1-_xO₂ catalysts were applied to the high temperature shift reaction with 500 ppm H₂S. In the presence of H₂S, the catalysts were deactivated with time on stream due to the poisioning of H₂S. Sulfur-tolerance in high temperature shift activity depended upon the oxygen storage capacity of the catalysts. The regeneration rate of the catalysts was also related with the oxygen storage capacity. In addition, the Pt dispersion matched the oxygen storage capacity trend. The oxygen storage capacity is a main function to determine the sulfur tolerance in high temperature shift activity compared to the dispersion of Pt.

Original language	English
Pages (from-to)	537-543
Number of pages	7
Journal	Journal of Industrial and Engineering Chemistry
Volume	115
DOIs	https://doi.org/10.1016/j.jiec.2022.08.041
Publication status	Published - 2022 Nov 25

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2020R1A2B5B01002346). This work was also supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2021R1C1C2005231).

Publisher Copyright:
© 2022 The Korean Society of Industrial and Engineering Chemistry

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)

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10.1016/j.jiec.2022.08.041

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title = "Elucidating the effect of Ce/Zr ratio on high temperature shift activity with sulfur poisoning",

abstract = "To elucidate the effect of CeO2/ZrO2 ratio on the sulfur-tolerance in high temperature shift using waste derived synthesis gas, the Ce/Zr ratio in Pt/CexZr1-xO2 catalysts was systematically changed. Pt/CexZr1-xO2 catalysts were applied to the high temperature shift reaction with 500 ppm H2S. In the presence of H2S, the catalysts were deactivated with time on stream due to the poisioning of H2S. Sulfur-tolerance in high temperature shift activity depended upon the oxygen storage capacity of the catalysts. The regeneration rate of the catalysts was also related with the oxygen storage capacity. In addition, the Pt dispersion matched the oxygen storage capacity trend. The oxygen storage capacity is a main function to determine the sulfur tolerance in high temperature shift activity compared to the dispersion of Pt.",

author = "Kim, {Kyoung Jin} and Jeon, {Kyung Won} and Hong, {Ga Ram} and Jeon, {Byong Hun} and {Wook Bae}, Jong and Jang, {Won Jun} and Lee, {Yeol Lim} and Roh, {Hyun Seog}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2020R1A2B5B01002346). This work was also supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2021R1C1C2005231). Publisher Copyright: {\textcopyright} 2022 The Korean Society of Industrial and Engineering Chemistry",

year = "2022",

month = nov,

day = "25",

doi = "10.1016/j.jiec.2022.08.041",

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AU - Kim, Kyoung Jin

AU - Jeon, Kyung Won

AU - Hong, Ga Ram

AU - Jeon, Byong Hun

AU - Wook Bae, Jong

AU - Jang, Won Jun

AU - Lee, Yeol Lim

AU - Roh, Hyun Seog

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2020R1A2B5B01002346). This work was also supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2021R1C1C2005231). Publisher Copyright: © 2022 The Korean Society of Industrial and Engineering Chemistry

PY - 2022/11/25

Y1 - 2022/11/25

N2 - To elucidate the effect of CeO2/ZrO2 ratio on the sulfur-tolerance in high temperature shift using waste derived synthesis gas, the Ce/Zr ratio in Pt/CexZr1-xO2 catalysts was systematically changed. Pt/CexZr1-xO2 catalysts were applied to the high temperature shift reaction with 500 ppm H2S. In the presence of H2S, the catalysts were deactivated with time on stream due to the poisioning of H2S. Sulfur-tolerance in high temperature shift activity depended upon the oxygen storage capacity of the catalysts. The regeneration rate of the catalysts was also related with the oxygen storage capacity. In addition, the Pt dispersion matched the oxygen storage capacity trend. The oxygen storage capacity is a main function to determine the sulfur tolerance in high temperature shift activity compared to the dispersion of Pt.

AB - To elucidate the effect of CeO2/ZrO2 ratio on the sulfur-tolerance in high temperature shift using waste derived synthesis gas, the Ce/Zr ratio in Pt/CexZr1-xO2 catalysts was systematically changed. Pt/CexZr1-xO2 catalysts were applied to the high temperature shift reaction with 500 ppm H2S. In the presence of H2S, the catalysts were deactivated with time on stream due to the poisioning of H2S. Sulfur-tolerance in high temperature shift activity depended upon the oxygen storage capacity of the catalysts. The regeneration rate of the catalysts was also related with the oxygen storage capacity. In addition, the Pt dispersion matched the oxygen storage capacity trend. The oxygen storage capacity is a main function to determine the sulfur tolerance in high temperature shift activity compared to the dispersion of Pt.

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Elucidating the effect of Ce/Zr ratio on high temperature shift activity with sulfur poisoning

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