Highly Dispersed Low-Polymeric VO x /Silica Gel Catalyst for Efficient Catalytic Dehydrogenation of Propane to Propylene

Developing an efficient propane dehydrogenation (PDH) is a profound challenge for the production of propylene from the abundant source of propane in the chemical industry. In this work, a simple, efficient, and easy-to-operate process for highly selective PDH to propylene over low-polymeric VO x /si...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Industrial & engineering chemistry research 2021-12, Vol.60 (50), p.18327-18336
Hauptverfasser: Chen, Wenkai, You, Kuiyi, Wei, Yanan, Zhao, Fangfang, Chen, Zhenpan, Wu, Jian, Ai, Qiuhong, Luo, He’an
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Developing an efficient propane dehydrogenation (PDH) is a profound challenge for the production of propylene from the abundant source of propane in the chemical industry. In this work, a simple, efficient, and easy-to-operate process for highly selective PDH to propylene over low-polymeric VO x /silica gel (VO x /SG) catalyst has been successfully developed. The results demonstrate that the low-polymeric VO x /SG catalyst exhibits high selectivity (∼95%), good conversion (45.0 to 26.4% over 10 h test), and excellent regenerability in the PDH to propylene at 580 °C. The characterization results reveal that the low-polymeric VO x species are highly dispersed on the SG support, which contributes to prevent the coke formation and improve the stability of catalyst in PDH process. The highly dispersed low-polymeric VO x /SG catalyst for highly selective PDH to propylene is promising, because of the relatively superior activity and stable performance upon regeneration, and has important industrial application prospects.
ISSN:0888-5885
1520-5045
DOI:10.1021/acs.iecr.1c03935