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

Yong Hee Lee; Hyoungsik Kim; Hyun Sook Choi; Dae Won Lee; Kwan Young Lee

doi:10.1007/s11814-015-0052-8

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

Yong Hee Lee, Hyoungsik Kim, Hyun Sook Choi, Dae Won Lee, Kwan Young Lee

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

20 Citations (Scopus)

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.

Original language	English
Pages (from-to)	2220-2226
Number of pages	7
Journal	Korean Journal of Chemical Engineering
Volume	32
Issue number	11
DOIs	https://doi.org/10.1007/s11814-015-0052-8
Publication status	Published - 2015 Nov 1

Bibliographical note

Publisher Copyright:
© 2015, Korean Institute of Chemical Engineers, Seoul, Korea.

Keywords

Cobalt Catalyst
Fischer-Tropsch
Heating Value
Methanation

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

Access to Document

10.1007/s11814-015-0052-8

Cite this

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

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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author = "Lee, {Yong Hee} and Hyoungsik Kim and Choi, {Hyun Sook} and Lee, {Dae Won} and Lee, {Kwan Young}",

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AU - Lee, Dae Won

AU - Lee, Kwan Young

PY - 2015/11/1

Y1 - 2015/11/1

N2 - 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.

AB - 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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