Frontiers of Chemical Science and Engineering >
The stabilization effect of Al2O3 on unconventional Pb/SiO2 catalyst for propane dehydrogenation
Received date: 23 Nov 2022
Accepted date: 10 Feb 2023
Published date: 15 Oct 2023
Copyright
Similar to Sn, Pb located at the same group (IVA) in the periodic table of elements, can also catalyze propane dehydrogenation to propene, while a fast deactivation can be observed. To enhance the stability, the traditional carrier Al2O3 with a small amount, was introduced into Pb/SiO2 catalyst in this study. It has been proved that Al2O3 can inhibit the reduction of PbO, and weaken the agglomeration and loss of Pb species due to its enhanced interaction with Pb species. As a result, 3Al15Pb/SiO2 catalyst exhibits a much higher stability up to more than 150 h. In addition, a simple schematic diagram of the change of surface species on the catalyst surface after Al2O3 addition was also proposed.
Key words: Pb/SiO2; Al2O3; propane dehydrogenation; propene; stability
Guowei Wang , Lanhui Zhou , Huanling Zhang , Chunlei Zhu , Xiaolin Zhu , Honghong Shan . The stabilization effect of Al2O3 on unconventional Pb/SiO2 catalyst for propane dehydrogenation[J]. Frontiers of Chemical Science and Engineering, 2023 , 17(10) : 1423 -1429 . DOI: 10.1007/s11705-023-2315-y
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