Promoted cobalt metal catalysts suitable for the production of lower olefins from natural gas

Jingxiu Xie; Pasi P. Paalanen; Tom W. van Deelen; Bert M. Weckhuysen; Manuel J. Louwerse; Krijn P. de Jong

doi:10.1038/s41467-018-08019-7

Promoted cobalt metal catalysts suitable for the production of lower olefins from natural gas

Jingxiu Xie
, Pasi P. Paalanen
, Tom W. van Deelen
, Bert M. Weckhuysen
, Manuel J. Louwerse
, Krijn P. de Jong^*

^*Corresponding author for this work

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

Abstract

Due to the surge of natural gas production, feedstocks for chemicals shift towards lighter hydrocarbons, particularly methane. The success of a Gas-to-Chemicals process via synthesis gas (CO and H ₂ ) depends on the ability of catalysts to suppress methane and carbon dioxide formation. We designed a Co/Mn/Na/S catalyst, which gives rise to negligible Water-Gas-Shift activity and a hydrocarbon product spectrum deviating from the Anderson–Schulz–Flory distribution. At 240 °C and 1 bar, it shows a C ₂ -C ₄ olefins selectivity of 54%. At 10 bar, it displays 30% and 59% selectivities towards lower olefins and fuels, respectively. The spent catalyst consists of 10 nm Co nanoparticles with hcp Co metal phase. We propose a synergistic effect of Na plus S, which act as electronic promoters on the Co surface, thus improving selectivities towards lower olefins and fuels while largely reducing methane and carbon dioxide formation.

Original language	English
Article number	167
Journal	Nature Communications
Volume	10
Issue number	1
DOIs	https://doi.org/10.1038/s41467-018-08019-7
Publication status	Published - 1 Dec 2019

Funding

This research received funding from the Netherlands Organisation for Scientific Research (NWO) in the framework of the TASC Technology Area “Syngas, a Switch to Flexible New Feedstock for the Chemical Industry (TA-Syngas)”. Dow and Johnson Matthey (JM) are also acknowledged for the funding received. K.P.d.J. acknowledges the European Research Council, EU FP7 ERC Advanced Grant no. 338846. J.J. Mulder (ICP-AES), Y. Wei (N2-physisorption) M. Versluijs-Helder (SEM-EDX), and H. Meeldijk (TEM-EDX) are acknowledged for the respective measurements. Dr. M. Ruitenbeek (Dow), Dr. M. Watson (JM) and Dr. L. van der Water (JM) are thanked for fruitful discussions.

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title = "Promoted cobalt metal catalysts suitable for the production of lower olefins from natural gas",

abstract = " Due to the surge of natural gas production, feedstocks for chemicals shift towards lighter hydrocarbons, particularly methane. The success of a Gas-to-Chemicals process via synthesis gas (CO and H 2 ) depends on the ability of catalysts to suppress methane and carbon dioxide formation. We designed a Co/Mn/Na/S catalyst, which gives rise to negligible Water-Gas-Shift activity and a hydrocarbon product spectrum deviating from the Anderson–Schulz–Flory distribution. At 240 °C and 1 bar, it shows a C 2 -C 4 olefins selectivity of 54\%. At 10 bar, it displays 30\% and 59\% selectivities towards lower olefins and fuels, respectively. The spent catalyst consists of 10 nm Co nanoparticles with hcp Co metal phase. We propose a synergistic effect of Na plus S, which act as electronic promoters on the Co surface, thus improving selectivities towards lower olefins and fuels while largely reducing methane and carbon dioxide formation. ",

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AU - Xie, Jingxiu

AU - Paalanen, Pasi P.

AU - van Deelen, Tom W.

AU - Weckhuysen, Bert M.

AU - Louwerse, Manuel J.

AU - de Jong, Krijn P.

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N2 - Due to the surge of natural gas production, feedstocks for chemicals shift towards lighter hydrocarbons, particularly methane. The success of a Gas-to-Chemicals process via synthesis gas (CO and H 2 ) depends on the ability of catalysts to suppress methane and carbon dioxide formation. We designed a Co/Mn/Na/S catalyst, which gives rise to negligible Water-Gas-Shift activity and a hydrocarbon product spectrum deviating from the Anderson–Schulz–Flory distribution. At 240 °C and 1 bar, it shows a C 2 -C 4 olefins selectivity of 54%. At 10 bar, it displays 30% and 59% selectivities towards lower olefins and fuels, respectively. The spent catalyst consists of 10 nm Co nanoparticles with hcp Co metal phase. We propose a synergistic effect of Na plus S, which act as electronic promoters on the Co surface, thus improving selectivities towards lower olefins and fuels while largely reducing methane and carbon dioxide formation.

AB - Due to the surge of natural gas production, feedstocks for chemicals shift towards lighter hydrocarbons, particularly methane. The success of a Gas-to-Chemicals process via synthesis gas (CO and H 2 ) depends on the ability of catalysts to suppress methane and carbon dioxide formation. We designed a Co/Mn/Na/S catalyst, which gives rise to negligible Water-Gas-Shift activity and a hydrocarbon product spectrum deviating from the Anderson–Schulz–Flory distribution. At 240 °C and 1 bar, it shows a C 2 -C 4 olefins selectivity of 54%. At 10 bar, it displays 30% and 59% selectivities towards lower olefins and fuels, respectively. The spent catalyst consists of 10 nm Co nanoparticles with hcp Co metal phase. We propose a synergistic effect of Na plus S, which act as electronic promoters on the Co surface, thus improving selectivities towards lower olefins and fuels while largely reducing methane and carbon dioxide formation.

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Promoted cobalt metal catalysts suitable for the production of lower olefins from natural gas

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