Effect of metal precursors on the performance of Pt/ZSM-22 catalysts for n -hexadecane hydroisomerization

Wang, Yudan; Tao, Zhichao; Wu, Baoshan; Xu, Jian; Huo, Chun‐Fang; Li, Ké; Chen, Huimin; Yang, Yong; Li, Yongwang

doi:10.1016/j.jcat.2014.11.004

Cited by 137 publications

(63 citation statements)

References 82 publications

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“…Ta ble 6s hows that besidesa ctivity,t he support strongly determines the selectivity of the reaction, with the zeolitic supports catalysing to ag reater extent the hydrocracking of the feedstock to gases and C 5 -C 10 cracking products. The use of ASA as the support resultsi nt he highest selectivityt oi so-hexadecane, equal to 77.1 %a ta bout1 0% n-C 16 conversion. H-MFI (ZSM-5) produces only hydrocracking products up with up to ten carbon atoms.…”

Section: Catalytic Behaviourmentioning

confidence: 95%

“…In fact, the collective selectivity to i-C 15 and i-C 16 surpasses8 0%,c learly pointingo ut to strongi somerization activity of the catalyst. Over the desilicated sample (Ni/DesH -Beta), selectivity to i-C 16 drops to 44 %. The productiono fi -C 15 is agains ignificant,w ith collective i-C 15 and i-C 16 selectivity of 66 %.…”

Section: Catalytic Behaviourmentioning

confidence: 99%

“…The selectivity to i-C 16 on Ni/DesH -betac atalysti sm ost likely deriving from the increase in the conversion.T oc ompare the catalysts at similarc onversion levels,e xperiments were conducted at varying WHSV and constant temperature (275 8C), with the exceptiono fN i/ASA catalyst. As this catalyst was much less active than its zeolitic counterparts, it was necessary to perform this set of experimentsa t3 10 8C.…”

Section: Catalytic Behaviourmentioning

confidence: 99%

“…As expected, the decreaseo fs pace velocityl ed to higherc onversion levels. The selectivity to i-C 16 as af unction of n-C 16 conversion is presentedi nF igure 6. These resultsc learly point out to the superiority of the Beta-based Ni catalysts.…”

Section: Catalytic Behaviourmentioning

confidence: 99%

“…[14] Typically,t hesec atalysts are based on noble metals/zeolite bifunctional catalysts. [15][16][17][18] Recent research hasf ocussed on the use of alternative metallic functions, investigating the use of non-critical raw materials, such as Ni phosphite [19] or Ni. [20] Another general trend is the use of hierarchical-type zeolites to increaser eactivity with large molecules.…”

Section: Introductionmentioning

confidence: 99%

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Effect of the Structure and Mesoporosity in Ni/Zeolite Catalysts for n‐Hexadecane Hydroisomerisation and Hydrocracking

et al. 2017

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The hydroisomerisation/hydrocracking properties of Ni‐zeolite catalysts (H‐MFI and H‐Beta) are studied using n‐hexadecane as model compound and compared with those of Ni/ASA (amorphous silica‐alumina) as reference catalyst. In the case of H‐Beta, the effect of the introduction of mesoporosity by controlled desilication is also investigated. The results indicate that Ni on desilicated H‐Beta catalysts shows very interesting characteristics for the potential use in the production of biofuel from vegetable/algal oil, or the upgrading of biomass‐derived Fischer–Tropsch waxes. Ni/H‐Beta shows lower activity with respect to Ni/H‐MFI, but significantly lower formation of gases and much better hydroisomerisation activity. The introduction of mesoporosity by desilication enhances the activity, while still maintaining an acceptable gas formation and good hydroisomerisation properties. Furthermore, the desilication treatment improves the stability with respect to carbon formation.

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Section: Catalytic Behaviourmentioning

confidence: 95%

Section: Catalytic Behaviourmentioning

confidence: 99%

Section: Catalytic Behaviourmentioning

confidence: 99%

Section: Catalytic Behaviourmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of the Structure and Mesoporosity in Ni/Zeolite Catalysts for n‐Hexadecane Hydroisomerisation and Hydrocracking

et al. 2017

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Zeolites Containing Heteroatoms/Metal Nanoparticles for Catalytic Conversion of Light Alkanes

Zhou,

Wang,

Xiao

2024

Micro‐Mesoporous Metallosilicates

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Mild Hydrogenation of 2‐Furoic Acid by Pt Nanoparticles Dispersed in a Hierarchical ZSM‐5 Zeolite

Pornsetmetakul,

Maineawklang,

Prasertsab

et al. 2023

Chemistry An Asian Journal

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Hydrogenation of biobased compound can add value to platform molecules obtained from biomass refining. Herein, we explore the hydrogenation of 2‐furancarboxylic acid (FCA), a derivative of furfural, with H2 generated in situ by NaBH4 hydrolysis at ambient conditions. Nearly complete conversion of FCA was obtained with tetrahydrofuroic acid (THFA) and 5‐hydroxyvaleric acid (5‐HVA) as the only two reaction products over Pt nanoparticles supported on hierarchical ZSM‐5. Small Pt nanoparticles (2 to 3 nm) were stabilized by ZSM‐5 nanosheets. At an optimized Pt loading, the Pt nanoparticles can catalyze the hydrolysis of NaBH4 and the subsequent hydrogenation of FCA with the assistance of Brønsted acid sites. Nanostructuring ZSM‐5 into nanosheets and its acidity contributes to the stability of the dispersed Pt nanoparticles. Deactivation due to NaBO2 deposition on the Pt particles can be countered by a simple washing treatment. Overall, this approach shows the promise of mild hydrogenation of biobased feedstock coupled with NaBH4 hydrolysis.

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Effect of metal precursors on the performance of Pt/ZSM-22 catalysts for n -hexadecane hydroisomerization

Cited by 137 publications

References 82 publications

Effect of the Structure and Mesoporosity in Ni/Zeolite Catalysts for n‐Hexadecane Hydroisomerisation and Hydrocracking

Effect of the Structure and Mesoporosity in Ni/Zeolite Catalysts for n‐Hexadecane Hydroisomerisation and Hydrocracking

Zeolites Containing Heteroatoms/Metal Nanoparticles for Catalytic Conversion of Light Alkanes

Mild Hydrogenation of 2‐Furoic Acid by Pt Nanoparticles Dispersed in a Hierarchical ZSM‐5 Zeolite

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