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Co-Mn-Ru/Al2O3 catalyst for the production of high-calorific synthetic natural gas

  • Catalysis, Reaction Engineering
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Abstract

Standard heating value for natural gas of South Korea, which imports LNG with high heating value is 10,400 kcal/Nm3, while the heating value of conventional SNG is less than 9,500 kcal/Nm3. Then the heating value of SNG should be enhanced to be used as city gas. In this study, Co-Mn-Ru/Al2O3 was applied in methanation to increase the heating value of the product gas. The role of each component and optimum composition where C2-C4 yield was highest were revealed. Mn enhanced the surface acidity, and promoted carbon-rich environment on the surface, which resulted in the increase of C2-C4 yield. Ru enhanced the reducibility of catalysts, and it resulted in high activity at lower temperature. As a result, optimum composition was 10Co-6Mn-2.5Ru/Al2O3. In addition, to replace Ru component, the reducibility of Co was enhanced by being reduced at higher temperature of 700 °C, and 20Co-Mn/Al2O3 catalysts achieved similar activity results to 10Co-6Mn-2.5Ru/Al2O3 without Ru.

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Authors and Affiliations

  1. Department of Chemical and Biological Engineering, Korea University, Anam-dong, Seongbuk-gu, Seoul, 136-713, Korea

    Yong Hee Lee, Dae-Won Lee & Kwan-Young Lee

  2. New Energy Technology Research Center, Korea Gas Corporation (KOGAS), 1248, Suin-ro, Sangnok-gu, Ansan, Gyeonggi-do, 426-790, Korea

    Hyoungsik Kim & Hyun Sook Choi

  3. Green School, Korea University, Anam-dong, Seongbuk-gu, Seoul, 136-713, Korea

    Kwan-Young Lee

Authors
  1. Yong Hee Lee
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  2. Hyoungsik Kim
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  3. Hyun Sook Choi
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  4. Dae-Won Lee
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  5. Kwan-Young Lee
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Corresponding authors

Correspondence to Dae-Won Lee or Kwan-Young Lee.

Additional information

This article is dedicated to Prof. Hwayong Kim on the occasion of his retirement from Seoul National Univerisity.

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Lee, Y.H., Kim, H., Choi, H.S. et al. Co-Mn-Ru/Al2O3 catalyst for the production of high-calorific synthetic natural gas. Korean J. Chem. Eng. 32, 2220–2226 (2015). https://doi.org/10.1007/s11814-015-0052-8

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  • DOI: https://doi.org/10.1007/s11814-015-0052-8

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