Tuning Interactions of Surface-adsorbed Species over Fe−Co/K−Al2O3 Catalyst by Different K Contents: Selective CO2 Hydrogenation to Light Olefins

Thanapha Numpilai; Narong Chanlek; Yingyot Poo-Arporn; Chin Kui Cheng; Nuchanart Siri-Nguan; Thana Sornchamni; Metta Chareonpanich; Paisan Kongkachuichay; Nevzat Yigit; Günther Rupprechter; Jumras Limtrakul; Thongthai Witoon

doi:10.1002/cctc.202000347

Tuning Interactions of Surface-adsorbed Species over Fe−Co/K−Al₂O₃ Catalyst by Different K Contents: Selective CO₂ Hydrogenation to Light Olefins

Thanapha Numpilai, Narong Chanlek, Yingyot Poo-Arporn, Chin Kui Cheng, Nuchanart Siri-Nguan, Thana Sornchamni, Metta Chareonpanich, Paisan Kongkachuichay, Nevzat Yigit, Günther Rupprechter, Jumras Limtrakul, Thongthai Witoon

Chemical and Petroleum Engineering

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

75 Scopus citations

Abstract

Selective CO₂ hydrogenation to light olefins over Fe−Co/K−Al₂O₃ catalysts was enhanced by tuning bonding strengths of adsorbed species by varying the content of the K promotor. Increasing the K/Fe atomic ratio from 0 to 0.5 increased the olefins/paraffins (O/P) ratio by 25.4 times, but then slightly raised upon ascending K/Fe to 2.5. The positive effect of K addition is attributed to the strong interaction of H adsorbed with the catalyst surface caused by the electron donor from K to Fe species. Although the Fe−Co/K−Al₂O₃ catalyst with K/Fe=2.5 reached the highest O/P ratio of 7.6, the maximum yield of light olefins of 16.4 % was achieved by the catalyst promoted with K/Fe of 0.5. This is explained by the considerable reduction of amount of H₂ adsorbed on the catalyst surface with K/Fe=2.5.

Original language	British English
Pages (from-to)	3306-3320
Number of pages	15
Journal	ChemCatChem
Volume	12
Issue number	12
DOIs	https://doi.org/10.1002/cctc.202000347
State	Published - 18 Jun 2020

Keywords

Carbon dioxide
Heterogeneous catalysis
Hydrogenation
K/Fe atomic ratio
Light olefins

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/cctc.202000347

Cite this

Numpilai, T., Chanlek, N., Poo-Arporn, Y., Cheng, C. K., Siri-Nguan, N., Sornchamni, T., Chareonpanich, M., Kongkachuichay, P., Yigit, N., Rupprechter, G., Limtrakul, J., & Witoon, T. (2020). Tuning Interactions of Surface-adsorbed Species over Fe−Co/K−Al₂O₃ Catalyst by Different K Contents: Selective CO₂ Hydrogenation to Light Olefins. ChemCatChem, 12(12), 3306-3320. https://doi.org/10.1002/cctc.202000347

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title = "Tuning Interactions of Surface-adsorbed Species over Fe−Co/K−Al2O3 Catalyst by Different K Contents: Selective CO2 Hydrogenation to Light Olefins",

abstract = "Selective CO2 hydrogenation to light olefins over Fe−Co/K−Al2O3 catalysts was enhanced by tuning bonding strengths of adsorbed species by varying the content of the K promotor. Increasing the K/Fe atomic ratio from 0 to 0.5 increased the olefins/paraffins (O/P) ratio by 25.4 times, but then slightly raised upon ascending K/Fe to 2.5. The positive effect of K addition is attributed to the strong interaction of H adsorbed with the catalyst surface caused by the electron donor from K to Fe species. Although the Fe−Co/K−Al2O3 catalyst with K/Fe=2.5 reached the highest O/P ratio of 7.6, the maximum yield of light olefins of 16.4 % was achieved by the catalyst promoted with K/Fe of 0.5. This is explained by the considerable reduction of amount of H2 adsorbed on the catalyst surface with K/Fe=2.5.",

keywords = "Carbon dioxide, Heterogeneous catalysis, Hydrogenation, K/Fe atomic ratio, Light olefins",

author = "Thanapha Numpilai and Narong Chanlek and Yingyot Poo-Arporn and Cheng, {Chin Kui} and Nuchanart Siri-Nguan and Thana Sornchamni and Metta Chareonpanich and Paisan Kongkachuichay and Nevzat Yigit and G{\"u}nther Rupprechter and Jumras Limtrakul and Thongthai Witoon",

note = "Funding Information: This research was supported in part by the Thailand Research Fund and the Kasetsart University (grant no. RSA6280007), the Center of Excellence on Petrochemical and Materials Technology (PETROMAT), the Nanotechnology Center (NANOTEC), NSTDA, the Ministry of Science and Technology, Thailand, through its program of Research Network of NANOTEC (RNN), and the Postdoctoral Fellowship from Vidyasirimedhi Institute of Science and Technology. GR acknowledges support by the Austrian Science Fund (FWF Projects SFB F4502 FOXSI and DK+ W1243 Solids4Fun). Publisher Copyright: {\textcopyright} 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2020",

month = jun,

day = "18",

doi = "10.1002/cctc.202000347",

language = "British English",

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Numpilai, T, Chanlek, N, Poo-Arporn, Y, Cheng, CK, Siri-Nguan, N, Sornchamni, T, Chareonpanich, M, Kongkachuichay, P, Yigit, N, Rupprechter, G, Limtrakul, J & Witoon, T 2020, 'Tuning Interactions of Surface-adsorbed Species over Fe−Co/K−Al₂O₃ Catalyst by Different K Contents: Selective CO₂ Hydrogenation to Light Olefins', ChemCatChem, vol. 12, no. 12, pp. 3306-3320. https://doi.org/10.1002/cctc.202000347

TY - JOUR

T1 - Tuning Interactions of Surface-adsorbed Species over Fe−Co/K−Al2O3 Catalyst by Different K Contents

T2 - Selective CO2 Hydrogenation to Light Olefins

AU - Numpilai, Thanapha

AU - Chanlek, Narong

AU - Poo-Arporn, Yingyot

AU - Cheng, Chin Kui

AU - Siri-Nguan, Nuchanart

AU - Sornchamni, Thana

AU - Chareonpanich, Metta

AU - Kongkachuichay, Paisan

AU - Yigit, Nevzat

AU - Rupprechter, Günther

AU - Limtrakul, Jumras

AU - Witoon, Thongthai

N1 - Funding Information: This research was supported in part by the Thailand Research Fund and the Kasetsart University (grant no. RSA6280007), the Center of Excellence on Petrochemical and Materials Technology (PETROMAT), the Nanotechnology Center (NANOTEC), NSTDA, the Ministry of Science and Technology, Thailand, through its program of Research Network of NANOTEC (RNN), and the Postdoctoral Fellowship from Vidyasirimedhi Institute of Science and Technology. GR acknowledges support by the Austrian Science Fund (FWF Projects SFB F4502 FOXSI and DK+ W1243 Solids4Fun). Publisher Copyright: © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2020/6/18

Y1 - 2020/6/18

N2 - Selective CO2 hydrogenation to light olefins over Fe−Co/K−Al2O3 catalysts was enhanced by tuning bonding strengths of adsorbed species by varying the content of the K promotor. Increasing the K/Fe atomic ratio from 0 to 0.5 increased the olefins/paraffins (O/P) ratio by 25.4 times, but then slightly raised upon ascending K/Fe to 2.5. The positive effect of K addition is attributed to the strong interaction of H adsorbed with the catalyst surface caused by the electron donor from K to Fe species. Although the Fe−Co/K−Al2O3 catalyst with K/Fe=2.5 reached the highest O/P ratio of 7.6, the maximum yield of light olefins of 16.4 % was achieved by the catalyst promoted with K/Fe of 0.5. This is explained by the considerable reduction of amount of H2 adsorbed on the catalyst surface with K/Fe=2.5.

AB - Selective CO2 hydrogenation to light olefins over Fe−Co/K−Al2O3 catalysts was enhanced by tuning bonding strengths of adsorbed species by varying the content of the K promotor. Increasing the K/Fe atomic ratio from 0 to 0.5 increased the olefins/paraffins (O/P) ratio by 25.4 times, but then slightly raised upon ascending K/Fe to 2.5. The positive effect of K addition is attributed to the strong interaction of H adsorbed with the catalyst surface caused by the electron donor from K to Fe species. Although the Fe−Co/K−Al2O3 catalyst with K/Fe=2.5 reached the highest O/P ratio of 7.6, the maximum yield of light olefins of 16.4 % was achieved by the catalyst promoted with K/Fe of 0.5. This is explained by the considerable reduction of amount of H2 adsorbed on the catalyst surface with K/Fe=2.5.

KW - Carbon dioxide

KW - Heterogeneous catalysis

KW - Hydrogenation

KW - K/Fe atomic ratio

KW - Light olefins

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DO - 10.1002/cctc.202000347

M3 - Article

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