A review on the structure-performance relationship of the catalysts during propane dehydrogenation reaction

Feng, Bohan; Wei, Yuechang; Song, Weiyu; Chen, Xu

doi:10.1016/j.petsci.2021.09.015

Cited by 40 publications

(14 citation statements)

References 157 publications

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“…6b and c). Based on the 119 (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15) were formed after the impregnation and reduction procedure, respectively. The obtained Pt-Sn-Beta-R catalyst subjected to direct H 2 reduction exhibited 47% propane conversion and over 99% propylene selectivity even after 85 h on stream at 500 °C, which is much better than that with the Pt-Sn-Beta-CR sample prepared via calcination-reduction with large amounts of larger metal nanoparticles on the outside of zeolites.…”

Section: Zeolite-supported Pt-sn Catalystsmentioning

confidence: 99%

“…7 Particularly, PDH technology is recognized to be one of the most promising methods for the production of propylene because it is an on-purpose process to produce only propylene instead of hybrid hydrocarbon products. [7][8][9][10][11][12][13][14][15] In addition, with the advent of fracking technology to produce shale gas, which contains a large amount of propane, the feedstocks for PDH have become extremely cheap. Moreover, PDH factories are highly adjustable and can be adapted to run many other different reactions.…”

Section: Introductionmentioning

confidence: 99%

“…Currently, there are multiple elegant reviews focusing on summarizing the development of PDH techniques and catalysts, 7,9,10,12 advanced synthesis and characterization of zeolite-supported metal catalysts, as well as their wide applications in various types of catalytic reactions. 39,41,42 However, to date, no exclusive review on zeolite-supported metal cata- lysts for PDH reactions has been presented.…”

Section: Introductionmentioning

confidence: 99%

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Advances in zeolite-supported metal catalysts for propane dehydrogenation

Sun

2022

Inorg. Chem. Front.

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Section: Zeolite-supported Pt-sn Catalystsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Advances in zeolite-supported metal catalysts for propane dehydrogenation

Sun

2022

Inorg. Chem. Front.

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“…With the global advocacy of carbon reduction, the fuel oil consumption is expected to decline under the increasingly strict environmental regulations and emerging electric vehicles . In contrast to this, the production and supply of light olefins are far from sufficient to meet the market demand, , and the demand of ethylene and propylene is expected to climb up to 385 million tons by 2030 . Moreover, it should be noticed that the oil is gradually becoming more and more heavier around the world.…”

Section: Introductionmentioning

confidence: 99%

Research Progress of Basic Catalyst Used in Catalytic Cracking for Olefin Production and Heavy Oil Utilization

Gao

Zhang

Zhao

et al. 2023

Ind. Eng. Chem. Res.

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As the demand for light olefins increases and the oil becomes heavier, higher requirements for catalytic activity, anticoking performance, and stability of catalyst have been brought forward. Basic catalyst has attracted much more attention in recent years due to its excellent performance in heavy oil utilization. This review highlights the research progress of catalytic cracking over basic catalyst for olefin production and heavy oil utilization. The catalytic mechanism along with attractive functions of basic catalyst are summarized. The optimized condition of operation is discussed as well. Several processes and technologies of catalytic cracking over basic catalyst are introduced to advance future development. This review attempts to benefit new researchers in this field by helping them to understand basic-catalyzed cracking characteristics for preparing a suitable catalyst.

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“…The Oleflex process, developed in the 1990s, was the first industrial process for PDH based on a bimetallic catalyst, namely, PtSn supported on Al 2 O 3 . Much more recently, another bimetallic, PtGa-based catalyst was implemented in industrial settings. ,− Several recent reviews furthermore highlight the high relevance of this process. ,− Overall, many different metal promoters have been utilized to improve the catalytic performances of Pt-based systems for light alkane dehydrogenation; most of them being post-transition (Zn, − Ga, , In, and Sn ,, ) and transition metals (Mn − or Cu − ). Besides these promoters, alkali metals and different supports have been used to improve catalyst performances, with the goal to minimize cracking and improve the regeneration process …”

Section: Introductionmentioning

confidence: 99%

Ti-Doping in Silica-Supported PtZn Propane Dehydrogenation Catalysts: From Improved Stability to the Nature of the Pt–Ti Interaction

Rochlitz

Pessemesse

Clark

et al. 2023

JACS Au

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Propane dehydrogenation is an important industrial reaction to access propene, the world's second most used polymer precursor. Catalysts for this transformation are required to be long living at high temperature and robust toward harsh oxidative regeneration conditions. In this work, combining surface organometallic chemistry and thermolytic molecular precursor approach, we prepared well-defined silica-supported Pt and alloyed PtZn materials to investigate the effect of Ti-doping on catalytic performances. Chemisorption experiments and density functional calculations reveal a significant change in the electronic structure of the nanoparticles (NPs) due to the Ti-doping. Evaluation of the resulting materials PtZn/SiO 2 and PtZnTi/SiO 2 during long deactivation phases reveal a stabilizing effect of Ti in PtZnTi/SiO 2 with a k d of 0.015 h −1 compared to PtZn/SiO 2 with a k d of 0.022 h −1 over 108 h on stream. Such a stabilizing effect is also present during a second deactivation phase after applying a regeneration protocol to the materials under O 2 and H 2 at high temperatures. A combined scanning transmission electron microscopy, in situ Xray absorption spectroscopy, electron paramagnetic resonance, and density functional theory study reveals that this effect is related to a sintering prevention of the alloyed PtZn NPs in PtZnTi/SiO 2 due to a strong interaction of the NPs with Ti sites. However, in contrast to classical strong metal−support interaction, we show that the coverage of the Pt NPs with TiO x species is not needed to explain the changes in adsorption and reactivity properties. Indeed, the interaction of the Pt NPs with Ti III sites is enough to decrease CO adsorption and to induce a red-shift of the CO band because of electron transfer from the Ti III sites to Pt 0 .

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A review on the structure-performance relationship of the catalysts during propane dehydrogenation reaction

Cited by 40 publications

References 157 publications

Advances in zeolite-supported metal catalysts for propane dehydrogenation

Advances in zeolite-supported metal catalysts for propane dehydrogenation

Research Progress of Basic Catalyst Used in Catalytic Cracking for Olefin Production and Heavy Oil Utilization

Ti-Doping in Silica-Supported PtZn Propane Dehydrogenation Catalysts: From Improved Stability to the Nature of the Pt–Ti Interaction

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