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Citation: Jinjing Li, Xiulian Pan, Xinhe Bao. Direct conversion of syngas into hydrocarbons over a core-shell Cr-Zn@SiO2@SAPO-34 catalyst[J]. Chinese Journal of Catalysis, ;2015, 36(7): 1131-1135. doi: 10.1016/S1872-2067(14)60297-7 shu

Direct conversion of syngas into hydrocarbons over a core-shell Cr-Zn@SiO2@SAPO-34 catalyst

  • 1.

    State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China

  • Corresponding author: Xiulian Pan, 
  • Received Date: 8 December 2014
    Available Online: 22 January 2015

    Fund Project: 中国科学院大连化学物理研究所甲醇转化与煤代油新技术基础研究专项基金(DICP M201308). (DICP M201308)

  • Direct conversion of syngas into hydrocarbons with high selectivity remains a challenge. Herein, we report the synthesis of a core-shell-structured catalyst constituting Cr-Zn oxide as the core and SAPO-34 as the shell for the conversion of syngas into hydrocarbons with high selectivity. A SiO2 layer was sandwiched between the core and the shell to prevent damage to the core during shell synthesis. Furthermore, the intermediate SiO2 layer acted as a Si source for the formation of the shell. The prepared catalyst displayed considerably higher selectivity toward the production of C2-C4 hydrocarbons (66.9%) than that of methanol and methane. The findings show the potential of the prepared core-shell-structured catalyst in the one-step production of hydrocarbons, such as liquefied petroleum gas, from syngas. However, further optimization of the catalyst is necessary to achieve higher performance.
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