Influence of Acid–Base Surface Characteristics of GAxSIBEA Zeolites on their Catalytic Properties in the Process of Oxidative Dehydrogenation of Propane to Propylene with Participation of CO2

Orlyk, S. M.; Канцерова, М. Р.; Chedryk, V. I.; Kyriienko, Pavlo I.; Balakin, Dmytro Yu.; Millot, Yannick; Dźwigaj, Stanisław

doi:10.1007/s11237-021-09667-5

Cited by 6 publications

(8 citation statements)

References 24 publications

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“…BEA zeolite samples of various dealumination degrees with zinc (1.0 wt % Zn) isomorphically incorporated in the T‐positions were prepared using a two–step post–synthesis procedure [15] . Chromium–doped (1.0 wt % Cr) compositions Cr/Zn−BEA were prepared by impregnation of the corresponding samples of ZnAlBEA (Si/Al=17), ZnAlSiBEA (Si/Al=100), and ZnSiBEA (Si/Al=1000) with an aqueous solution of chromic anhydride with calcination in air (923 K, 2 h).…”

Section: Methodsmentioning

confidence: 99%

“…The influence of BEA zeolite preliminary dealumination on the acid‐base characteristics and catalytic performance of Zn−BEA compositions in CO 2 −PDH is shown in [14,15] . Full dealumination resulted in a twofold decrease in the total acidity as well as basicity of Zn‐BEA, and the formation of Lewis acid sites (LAS) and basic sites of predominantly medium strength with the removal of Brønsted acid sites (BAS) from the surface.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Surface Acidity/Basicity of Cr/Zn−BEA Zeolite Catalysts on Performance in CO₂‐PDH Process

Orlyk,

Kapran,

Chedryk

et al. 2024

ChemistrySelect

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The influence of adding Cr(III) compounds into Zn−BEA zeolite samples (with silicate modulus Si/Al=17, 100, and 1000) on the redox and acid–base characteristics of Cr/Zn−BEA zeolites were studied, and their catalytic properties in propane dehydrogenation with CO2 to propylene. It was established (based on the XRD, low–temperature (77 K) ad/desorption of N2, TPR−H2, TPD−MSC−NH3(CO2), C3H8(C3H6), FTIR−Py data) that the acid–base characteristics of the surface of bifunctional Cr/Zn−BEA catalysts, namely the amount, strength, and nature (Lewis and Brønsted sites), determine their activity/selectivity, and operation stability in the process of CO2−PDH. This indicates that over Cr/Zn−BEA catalysts, the process runs along the route of direct propane dehydrogenation combined with the reverse water gas shift reaction.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Surface Acidity/Basicity of Cr/Zn−BEA Zeolite Catalysts on Performance in CO₂‐PDH Process

Orlyk,

Kapran,

Chedryk

et al. 2024

ChemistrySelect

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“…8a). Contrarily, the pathway for selective C-H bond cleavage was more energetically favorable on the mixed NiFe (111) surface, leading to the improvement of selectivity of ODHE (Fig. 8b).…”

Section: Cerium-based Rare Metal Catalystsmentioning

confidence: 99%

“…They found that the former catalyst exhibited a higher propylene selectivity and better stability during several cycles of the dehydrogenation of propane and oxidative regeneration. And the formation of carbon (111). Reproduced with permission from Ref.…”

Section: Vanadium-based Catalystsmentioning

confidence: 99%

“…After loading Ga 2 O 3 , Ga 2 O 3 / ITQ-2 provided a higher propylene selectivity and better stability for the CO 2 -ODHP than Ga 2 O 3 /ZSM-5 catalysts [110]. Furtherly, Orlyk et al [111] used dealuminated BEA zeolite (SiBEA) as support with adjustable acidic-basic and redox properties to obtain Ga x SiBEA catalysts. They could achieve the CO 2 -ODHP with a 40% yield of propylene due to the formation of Lewis acid sites by isolated Ga III sites.…”

Section: Gallium-based Catalystsmentioning

confidence: 99%

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Research progress of CO2 oxidative dehydrogenation of propane to propylene over Cr-free metal catalysts

Wang

et al. 2022

Rare Met.

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CO 2 -assisted oxidative dehydrogenation of propane (CO 2 -ODHP) is an attractive strategy to offset the demand gap of propylene due to its potentiality of reducing CO 2 emissions, especially under the demands of peaking CO 2 emissions and carbon neutrality. The introduction of CO 2 as a soft oxidant into the reaction not only averts the over-oxidation of products, but also maintains the high oxidation state of the redox-active sites. Furthermore, the presence of CO 2 increases the conversion of propane by coupling the dehydrogenation of propane (DHP) with the reverse water gas reaction (RWGS) and inhibits the coking formation to prolong the lifetime of catalysts via the reverse Boudouard reaction. An effective catalyst should selectively activate the C-H bond but suppress the C-C cleavage. However, to prepare such a catalyst remains challenging. Chromium-based catalysts are always applied in industrial application of DHP; however, their toxic properties are harmful to the environment. In this aspect, exploring environment-friendly and sustainable catalytic systems with Cr-free is an important issue. In this review, we outline the development of the CO 2 -ODHP especially in the last ten years, including the structural information, catalytic performances, and mechanisms of chromium-free metal-based catalyst systems, and the role of CO 2 in the reaction. We also present perspectives for future progress in the CO 2 -ODHP.

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Effect of Acid–Base Characteristics of Zeolite Catalysts on Oxidative Dehydrogenation of Propane with Carbon Dioxide

Kapran

Orlyk

2022

Theor Exp Chem

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Influence of Acid–Base Surface Characteristics of GAxSIBEA Zeolites on their Catalytic Properties in the Process of Oxidative Dehydrogenation of Propane to Propylene with Participation of CO2

Cited by 6 publications

References 24 publications

Effect of Surface Acidity/Basicity of Cr/Zn−BEA Zeolite Catalysts on Performance in CO₂‐PDH Process

Effect of Surface Acidity/Basicity of Cr/Zn−BEA Zeolite Catalysts on Performance in CO₂‐PDH Process

Research progress of CO2 oxidative dehydrogenation of propane to propylene over Cr-free metal catalysts

Effect of Acid–Base Characteristics of Zeolite Catalysts on Oxidative Dehydrogenation of Propane with Carbon Dioxide

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Influence of Acid–Base Surface Characteristics of GAxSIBEA Zeolites on their Catalytic Properties in the Process of Oxidative Dehydrogenation of Propane to Propylene with Participation of CO2

Cited by 6 publications

References 24 publications

Effect of Surface Acidity/Basicity of Cr/Zn−BEA Zeolite Catalysts on Performance in CO2‐PDH Process

Effect of Surface Acidity/Basicity of Cr/Zn−BEA Zeolite Catalysts on Performance in CO2‐PDH Process

Research progress of CO2 oxidative dehydrogenation of propane to propylene over Cr-free metal catalysts

Effect of Acid–Base Characteristics of Zeolite Catalysts on Oxidative Dehydrogenation of Propane with Carbon Dioxide

Contact Info

Product

Resources

About

Effect of Surface Acidity/Basicity of Cr/Zn−BEA Zeolite Catalysts on Performance in CO₂‐PDH Process

Effect of Surface Acidity/Basicity of Cr/Zn−BEA Zeolite Catalysts on Performance in CO₂‐PDH Process