Direct production of olefins from syngas with ultrahigh carbon efficiency

Hailing Yu; Caiqi Wang; Tiejun Lin; Yunlei An; Yuchen Wang; Qingyu Chang; Fei Yu; Yao Wei; Fanfei Sun; Zheng Jiang; Shenggang Li; Yuhan Sun; Liangshu Zhong

doi:10.1038/s41467-022-33715-w

Direct production of olefins from syngas with ultrahigh carbon efficiency

Nat Commun. 2022 Oct 10;13(1):5987. doi: 10.1038/s41467-022-33715-w.

Authors

Hailing Yu^#^{1

2}, Caiqi Wang^#^{1

2}, Tiejun Lin^#¹, Yunlei An¹, Yuchen Wang^{1

3}, Qingyu Chang¹, Fei Yu¹, Yao Wei^{2

4}, Fanfei Sun⁵, Zheng Jiang⁵, Shenggang Li^{1

3}, Yuhan Sun^{6

7}, Liangshu Zhong^{8

9}

Affiliations

¹ CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, P. R. China.
² University of the Chinese Academy of Sciences, Beijing, 100049, P. R. China.
³ School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China.
⁴ Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, P. R. China.
⁵ Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, P. R. China.
⁶ CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, P. R. China. sunyh@sari.ac.cn.
⁷ School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China. sunyh@sari.ac.cn.
⁸ CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, P. R. China. zhongls@sari.ac.cn.
⁹ School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China. zhongls@sari.ac.cn.

^# Contributed equally.

Abstract

Syngas conversion serves as a competitive strategy to produce olefins chemicals from nonpetroleum resources. However, the goal to achieve desirable olefins selectivity with limited undesired C1 by-products remains a grand challenge. Herein, we present a non-classical Fischer-Tropsch to olefins process featuring high carbon efficiency that realizes 80.1% olefins selectivity with ultralow total selectivity of CH₄ and CO₂ (<5%) at CO conversion of 45.8%. This is enabled by sodium-promoted metallic ruthenium (Ru) nanoparticles with negligible water-gas-shift reactivity. Change in the local electronic structure and the decreased reactivity of chemisorbed H species on Ru surfaces tailor the reaction pathway to favor olefins production. No obvious deactivation is observed within 550 hours and the pellet catalyst also exhibits excellent catalytic performance in a pilot-scale reactor, suggesting promising practical applications.

Abstract

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