Isomerization catalysts and technologies for biorefining: Opportunities for producing sustainable aviation fuels

Misra, Prachee; Alvarez‐Majmutov, Anton; Chen, Jinwen

doi:10.1016/j.fuel.2023.128994

Cited by 14 publications

(1 citation statement)

References 116 publications

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“…A well-balanced bifunctional catalyst promotes hydrogenation and dehydrogenation reactions, with rearrangements of the hydrocarbon intermediates over acid sites dictating reaction rates [9]. As a result, hydroisomerization and hydrocracking reactions occur in sequence, leading to mono-and multibranched isomers, and cracked paraffins [10,11]. One of the primary challenges in advancing the hydroisomerization technology is the need for highly effective and selective bifunctional catalysts that can minimize the formation of byproducts resulting from hydrocracking [12,13].…”

Section: Introductionmentioning

confidence: 99%

Hydroisomerization Catalysts for High-Quality Diesel Fuel Production

Aljajan,

Stytsenko,

Rubtsova

et al. 2023

Catalysts

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Upgrading the properties of diesel fractions is considered one of the crucial processes in the petrochemical industry; and for this purpose in laboratory-scale researching it is studied on the base of the hydroisomerization of n-hexadecane as a main model reaction. Recently, zeolite-based bifunctional catalysts have proven their efficiency due to their remarkable acidity, shape-selectivity and relative resistance to deactivation. In this review, different topological-type zeolite-based catalysts, the mechanism of their catalytic effect in n-C16 isomerization, and the principles of shape-selectivity are reviewed. A comparison of their structural-operational characteristics is made. The impact of some feedstock impurities on the catalyst’s performance and deactivation due to carbonaceous deposits as well as various modern eco-friendly cost-effective synthesis techniques are also discussed.

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Section: Introductionmentioning

confidence: 99%

Hydroisomerization Catalysts for High-Quality Diesel Fuel Production

Aljajan,

Stytsenko,

Rubtsova

et al. 2023

Catalysts

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Direct Production of Sustainable Aviation Fuel by Deoxygenation and Isomerization of Triglycerides Over Bifunctional Ir−ReO_x/SAPO‐11 Catalyst

Praikaew,

Chuseang,

Prameswari

et al. 2024

ChemPlusChem

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Catalytic thermochemical conversion offers a sustainable method to upgrade oil‐based feedstocks into highly valuable biofuel, aligning with the modern biorefinery concept. Herein, a series of IrRe/SAPO‐11 catalysts with different Ir to Re molar ratios compared to reference Ir/SAPO‐11 and Re/SAPO‐11 catalysts was prepared using a wetness impregnation method. These catalysts were used for the direct production of sustainable aviation fuels (SAFs) via efficient hydrodeoxygenation and hydroisomerization of triglycerides. The catalyst screening confirmed that the optimum IrRe/SAPO‐11 catalyst, with an equivalent Ir to Re molar ratio, exhibited the highest hydrodeoxygenation activity under milder operation conditions than the conditions used in previous studies. Increasing the reaction temperature up to 330 °C enhanced the formation of iso‐alkanes in the liquid product, achieving a freezing point of −31.4 °C without additional cold flow improvers. Furthermore, a long‐term stability experiment demonstrated that the developed Ir–Re system exhibited exceptional performance over 150 h. This excellent catalytic activity and stability of the bifunctional IrRe/SAPO‐11 catalyst was owing to its suitable interface between metallic and oxide sites, mixed mesoporous structures, reduced catalyst size, and increased Lewis acid ratio, as confirmed by our comprehensive characterizations.

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Current Technological Status and Future Prospect of Biojet Fuel Production

Yadav,

Dixit,

Sharma

2024

Clean Energy Production Technologies

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Isomerization catalysts and technologies for biorefining: Opportunities for producing sustainable aviation fuels

Cited by 14 publications

References 116 publications

Hydroisomerization Catalysts for High-Quality Diesel Fuel Production

Hydroisomerization Catalysts for High-Quality Diesel Fuel Production

Direct Production of Sustainable Aviation Fuel by Deoxygenation and Isomerization of Triglycerides Over Bifunctional Ir−ReO_x/SAPO‐11 Catalyst

Current Technological Status and Future Prospect of Biojet Fuel Production

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Isomerization catalysts and technologies for biorefining: Opportunities for producing sustainable aviation fuels

Cited by 14 publications

References 116 publications

Hydroisomerization Catalysts for High-Quality Diesel Fuel Production

Hydroisomerization Catalysts for High-Quality Diesel Fuel Production

Direct Production of Sustainable Aviation Fuel by Deoxygenation and Isomerization of Triglycerides Over Bifunctional Ir−ReOx/SAPO‐11 Catalyst

Current Technological Status and Future Prospect of Biojet Fuel Production

Contact Info

Product

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About

Direct Production of Sustainable Aviation Fuel by Deoxygenation and Isomerization of Triglycerides Over Bifunctional Ir−ReO_x/SAPO‐11 Catalyst