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A vanadium phosphorus oxide catalyst synthesized in rotating packed bed for high‐efficiency selective oxidation of n‐butane

Wang, Bao‐Ju ; Dai, Fei ; Jiang, Lan ; Zhang, Ruirui ; Chu, Guang‐Wen ; Liu, Ruixia ; Luo, Yong

AIChE journal, 2023-01, Vol.69 (1), p.n/a [Periódico revisado por pares]

Hoboken, USA: John Wiley & Sons, Inc

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  • Título:
    A vanadium phosphorus oxide catalyst synthesized in rotating packed bed for high‐efficiency selective oxidation of n‐butane
  • Autor: Wang, Bao‐Ju ; Dai, Fei ; Jiang, Lan ; Zhang, Ruirui ; Chu, Guang‐Wen ; Liu, Ruixia ; Luo, Yong
  • Assuntos: Butane ; Catalysts ; Chemical industry ; Chemical synthesis ; Coexistence ; Fine chemicals ; Maleic anhydride ; maleic anhydride yield ; n‐butane oxidation ; Oxidation ; Packed beds ; Phosphorus ; Phosphorus oxides ; Reactors ; rotating packed bed reactor ; Rotation ; Vanadium ; VPO catalyst
  • É parte de: AIChE journal, 2023-01, Vol.69 (1), p.n/a
  • Notas: Funding information
    National Key Research and Development Program of China, Grant/Award Numbers: 2017YFA0206801, 2017YFA0206803; National Natural Science Foundation of China, Grant/Award Number: 22022802
  • Descrição: Oxidation of n‐butane to produce maleic anhydride (MA) by the vanadium phosphorus oxide (VPO) catalyst is important for the fine chemical industry. However, the improvement in MA yield exceeding 60% is still a big challenge. In this article, a VPO catalyst with increased MA yield originated from the tailored structure of VPO precursor prepared in a rotating packed bed (RPB) reactor with excellent micro‐mixing efficiency. The activated VPO‐RPB catalyst displayed the coexistence of X1‐VOPO4 and αI‐VOPO4 phases and enhanced reducibility of V4+ state. Remarkably, the MA yield in n‐butane oxidation catalyzed by VPO‐RPB reached up to 66%, showing an increment by 14% compared with VPO‐STR prepared in a stirring tank reactor (STR). The VPO‐RPB showed the repeatable catalytic performance and achieved a promising scale‐up production. This work provides the experimental evidence of a dual‐phase (X1‐VOPO4 and αI‐VOPO4) mechanism for n‐butane oxidation, and reveals the structure–activity dependence of VPO catalyst.
  • Editor: Hoboken, USA: John Wiley & Sons, Inc
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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