The synergic effects of highly selective bimetallic Pt-Pd/SAPO-41 catalysts for the n-hexadecane hydroisomerization

Jia, Guozhi; Guo, Chunmu; Wang, Wei; Bai, Xuefeng; Wei, Xiaomeng; Su, Xiaofang; Li, Tong; Xiao, Linfei; Wu, Wei

doi:10.1007/s11705-020-2031-9

Cited by 12 publications

(2 citation statements)

References 52 publications

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“…Osakoo et al [41] evaluated the differences between the co-impregnation and sequential impregnation methods in the catalytic activity of the 0.2Pd-10Co-SBA-15 catalyst in the Fischer-Tropsch reaction (FTS) and obtained better results for the sequential impregnation. In another study, Jia et al [42], who used the Pt-Pd/SAPO-41 catalyst in the hydroisomerization reaction of n-hexadecane, observed a higher yield of isohexadecane for the catalysts prepared by co-impregnation when compared to the catalysts in which the sequential methodology was used.…”

Section: Introductionmentioning

confidence: 98%

Methods for Pt-WO3/SBA-15 materials synthesis for glycerol conversion

et al. 2023

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Glycerol has applications as a raw material in different industrial processes, however, its supply exceeds demand. An alternative to increase the added value of this feedstock is its conversion into high added-value chemical products through dehydration and hydrogenation reactions, from which 1,2-PDO and 1,3-PDO can be obtained. To develop catalysts that increase the conversion and selectivity of these processes, materials of 2% Pt and 10% WO 3 supported on SBA-15 were studied. Two methods were used for incipient wetness impregnation: sequential impregnation, with impregnation steps for each species, and co-impregnation, with a single impregnation step for both species. From the analysis of XRD, XRF, N 2 isotherms, SEM, EDS, FTIR, and pyridine FTIR spectroscopy, it was possible to observe the influence of these methods on the structural and textural properties. It was verified that the co-impregnation provided a better dispersion of the WO 3 species on the surface of the SBA-15 and that the reduction process, for both methodologies employed, showed an improvement in the metallic dispersion. The better dispersion of WO 3 species also resulted in a greater formation of Brønsted acid sites for the co-impregnation method, with a predominance of Lewis sites in the structure of the catalysts obtained by both methods.

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Section: Introductionmentioning

confidence: 98%

Methods for Pt-WO3/SBA-15 materials synthesis for glycerol conversion

et al. 2023

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“…Consequently, the acid site density of ZSM-22 zeolite is normally low . In general, the acidity of zeolites can be enhanced by increasing the crystallinities, , regulating the degree of Al isolation, − introducing metals, , etc., but these existing methods are hard to control and will cause simultaneous changes in acidity, as well as texture properties. Therefore, it is desirable to improve the catalytic performance of ZSM-22 by designing new synthetic protocols, which may have practical implications for industrial use.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of ZSM-22 with Enhanced Acidity Using Alcoholamine as a Structure-Directing Agent to Promote the Hydroisomerization of n-Heptane

Wang

Zhu

et al. 2023

Ind. Eng. Chem. Res.

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The physiochemical properties and catalytic performance of zeolite rely on the judicious selection of organic structure-directing agents (OSDAs), among which alcoholamines are rarely used. Here, we report that 6-amino-1-hexanol (AH) can be used as an OSDA for the generation of commercially viable ZSM-22 with a Si/Al ratio window of 35–150. Compared with ZSM-22 derived from commonly used 1,6-diaminohexane (DAH), the samples generated using AH possess improved crystallinity and more intermediate-to-strong acid site, which can be attributed to the stronger host–guest interactions between AH and zeolite framework. In addition, the crystallization process can be accelerated by the use of AH. ZSM-22 catalysts derived from AH outperform the counterpart generated from DAH in hydroisomerization of n-heptane, and improved catalytic activity and isomer yield can be achieved thanks to the presence of abundant acid sites and high crystallinity.

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AlCl3 modified Pd/Al2O3 catalyst for enhanced anthraquinone hydrogenation

Yuan,

Liang,

et al. 2023

Chinese Journal of Chemical Engineering

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The synergic effects of highly selective bimetallic Pt-Pd/SAPO-41 catalysts for the n-hexadecane hydroisomerization

Cited by 12 publications

References 52 publications

Methods for Pt-WO3/SBA-15 materials synthesis for glycerol conversion

Methods for Pt-WO3/SBA-15 materials synthesis for glycerol conversion

Synthesis of ZSM-22 with Enhanced Acidity Using Alcoholamine as a Structure-Directing Agent to Promote the Hydroisomerization of n-Heptane

AlCl3 modified Pd/Al2O3 catalyst for enhanced anthraquinone hydrogenation

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