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Tuning the catalytic CO hydrogenation to straight- and long-chain aldehydes/alcohols and olefins/paraffins

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  • Yizhi Xiang

    (Voiland School of Chemical Engineering and Bioengineering, Washington State University)

  • Norbert Kruse

    (Voiland School of Chemical Engineering and Bioengineering, Washington State University
    Institute for Integrated Catalysis, Pacific Northwest National Laboratory)

Abstract

The catalytic CO hydrogenation is one of the most versatile large-scale chemical syntheses leading to variable chemical feedstock. While traditionally mainly methanol and long-chain hydrocarbons are produced by CO hydrogenation, here we show that the same reaction can be tuned to produce long-chain n-aldehydes, 1-alcohols and olefins, as well as n-paraffins over potassium-promoted CoMn catalysts. The sum selectivity of aldehydes and alcohols is usually >50 wt% whereof up to ∼97% can be n-aldehydes. While the product slate contains ∼60% n-aldehydes at /pCO=0.5, a 65/35% slate of paraffins/alcohols is obtained at a ratio of 9. A linear Anderson–Schulz–Flory behaviour, independent of the /pCO ratio, is found for the sum of C4+ products. We advocate a synergistic interaction between a Mn5O8 oxide and a bulk Co2C phase, promoted by the presence of potassium, to be responsible for the unique product spectra in our studies.

Suggested Citation

  • Yizhi Xiang & Norbert Kruse, 2016. "Tuning the catalytic CO hydrogenation to straight- and long-chain aldehydes/alcohols and olefins/paraffins," Nature Communications, Nature, vol. 7(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13058
    DOI: 10.1038/ncomms13058
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    Cited by:

    1. Yuan-Sheng Xia & Meizhong Tang & Lei Zhang & Jiang Liu & Cheng Jiang & Guang-Kuo Gao & Long-Zhang Dong & Lan-Gui Xie & Ya-Qian Lan, 2022. "Tandem utilization of CO2 photoreduction products for the carbonylation of aryl iodides," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    2. Zhejun Jiang & Hao Huang & Chenxu Lu & Lianrong Zhou & Shengzhe Pan & Junjie Qiang & Menghang Shi & Zhengjun Ye & Peifen Lu & Hongcheng Ni & Wenbin Zhang & Jian Wu, 2024. "Ultrafast photoinduced C-H bond formation from two small inorganic molecules," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    3. Zhou, Ziyuan & Liu, Dehua & Zhao, Xuebing, 2021. "Conversion of lignocellulose to biofuels and chemicals via sugar platform: An updated review on chemistry and mechanisms of acid hydrolysis of lignocellulose," Renewable and Sustainable Energy Reviews, Elsevier, vol. 146(C).

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