Effect of Cr 2 O 3 loading on the properties and cracking activity of Pt/Cr 2 O 3 -ZrO 2

Annuar, N.H.R.; Triwahyono, Sugeng; Jalil, Aishah Abdul; Basar, Norazah; Abdullah, Tuan Amran Tuan; Ahmad, Arshad

doi:10.1016/j.apcata.2017.05.006

Cited by 6 publications

(7 citation statements)

References 41 publications

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“…Cr can be doped on a carrier to enhance the catalytic activity of the host [67,68]. The addition of Cr metal to sulfated zirconia can also increase the acidity of the catalyst as the metal would contribute to the presence of Lewis acid sites [69]. The presence of Cr metal on sulfated zirconia also affects increasing the surface area of the catalyst [70,71].…”

Section: Cr/zro 2 -So 4 Catalystmentioning

confidence: 99%

“…As can be seen, the addition of Cr metal to sulfated zirconia increased the surface area, pore diameter, and pore volume of the catalyst. This can be attributed to the uniform distribution of Cr metal on the catalyst surface [69,70]. The surface area of the catalyst, however, decreased upon the addition of higher concentrations of Cr metal, namely at Cr3/ZS, due to the entry of Cr metal into the catalyst pores causing agglomeration of metal atoms that covered the catalyst pores [74].…”

Section: Saa Characterization Of Cr/zro 2 -So 4 Catalystmentioning

confidence: 99%

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Recent Progress on Sulfated Nanozirconia as a Solid Acid Catalyst in the Hydrocracking Reaction

et al. 2022

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Zirconia has advantageous thermal stability and acid–base properties. The acidity character of ZrO2 can be enhanced through the sulfation process forming sulfated zirconia (ZrO2-SO4). An acidity test of the catalyst produced proved that the sulfate loading succeeded in increasing the acidity of ZrO2 as confirmed by the presence of characteristic absorptions of the sulfate group from the FTIR spectra of the catalyst. The ZrO2-SO4 catalyst can be further modified with transition metals, such as Platinum (Pt), Chromium (Cr), and Nickel (Ni) to increase catalytic activity and catalyst stability. It was observed that variations in the concentrations of Pt, Cr, and Ni produced a strong influence on the catalytic activity as the acidity and porosity of the catalyst increased with their addition. The activity, selectivity, and catalytic stability tests of Pt/ZrO2-SO4, Cr/ZrO2-SO4 and Ni/ZrO2-SO4 were carried out with their application in the hydrocracking reaction to produce liquid fuel. The percentage of liquid fractions produced using these catalysts were higher than the fraction produced using pure ZrO2 and ZrO2-SO4 catalyst.

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Section: Cr/zro 2 -So 4 Catalystmentioning

confidence: 99%

Section: Saa Characterization Of Cr/zro 2 -So 4 Catalystmentioning

confidence: 99%

Recent Progress on Sulfated Nanozirconia as a Solid Acid Catalyst in the Hydrocracking Reaction

et al. 2022

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“…Hence, it confirmed the successful incorporation of the metal ions into the ZrO 2 lattice. In Cr_ZrO 2 catalyst, small peaks at 1210 and 1740 cm À1 are observed, attributed to the formation of Cr x O y , 49 due to the strong interaction between Cr-Zr. This could be responsible for the generation of more active sites on the surface of Cr_ZrO 2 .…”

Section: Surface Properties Of the M_zro 2 Catalystsmentioning

confidence: 99%

Metal-doped mesoporous ZrO₂catalyzed chemoselective synthesis of allylic alcohols from Meerwein–Ponndorf–Verley reduction of α,β-unsaturated aldehydes

2021

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“…Different types of catalyst compositions were studied in [126] where Cr2O3 was introduced in different amounts to Pt/ZrO2 catalyst forming Pt/Cr2O3-ZrO2. The obtained composite catalyst was used for hydrocracking isopropylbenzene (IPB), 1,4-diisopropylbenzene (DIPB) and 1,3,5triisopropylbenzene (TIPB).…”

Section: Hydrocracking Of Aromatic Compoundsmentioning

confidence: 99%

“…Percentage yield of products in hydrocracking A) isopropylbenzene (IPB), B) 1,4diisopropylbenzene (DIPB) and C) 1,3,5-triisopropylbenzene (TIPB) for Pt/CrZr. Reproduced with permission from[126]…”

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confidence: 99%

Synthesis and performance evaluation of hydrocracking catalysts: A review

Saab

Polychronopoulou

Zheng

et al. 2020

Journal of Industrial and Engineering Chemistry

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This review provides a comprehensive summary of current hydrocracking applications, and presents recent advances in the synthesis and structure/composition control of various nanomaterials used in hydrocracking catalysts. Although a wide range of feeds are considered in this review, particular focus is placed on hydrocracking of aromatic and paraffinic compounds.The significance, concepts and principles of the hydrocracking process are first discussed focusing on its wide range of industrial applications. Then, recent advances in the synthesis of hydrocracking catalysts are presented, including different types of zeolites and metal promoted catalysts. Finally, we compare the performances of a wide range of hydrocracking catalysts, and discuss how their intrinsic properties (e.g. surface area, porosity, acidity, morphology and structure) can be controlled to achieve optimal catalytic performance in hydrocracking of aromatic compounds, heavy petrochemicals, paraffinic hydrocarbons and vegetable oils.

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Effect of Cr 2 O 3 loading on the properties and cracking activity of Pt/Cr 2 O 3 -ZrO 2

Cited by 6 publications

References 41 publications

Recent Progress on Sulfated Nanozirconia as a Solid Acid Catalyst in the Hydrocracking Reaction

Recent Progress on Sulfated Nanozirconia as a Solid Acid Catalyst in the Hydrocracking Reaction

Metal-doped mesoporous ZrO₂catalyzed chemoselective synthesis of allylic alcohols from Meerwein–Ponndorf–Verley reduction of α,β-unsaturated aldehydes

Synthesis and performance evaluation of hydrocracking catalysts: A review

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Effect of Cr 2 O 3 loading on the properties and cracking activity of Pt/Cr 2 O 3 -ZrO 2

Cited by 6 publications

References 41 publications

Recent Progress on Sulfated Nanozirconia as a Solid Acid Catalyst in the Hydrocracking Reaction

Recent Progress on Sulfated Nanozirconia as a Solid Acid Catalyst in the Hydrocracking Reaction

Metal-doped mesoporous ZrO2catalyzed chemoselective synthesis of allylic alcohols from Meerwein–Ponndorf–Verley reduction of α,β-unsaturated aldehydes

Synthesis and performance evaluation of hydrocracking catalysts: A review

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Metal-doped mesoporous ZrO₂catalyzed chemoselective synthesis of allylic alcohols from Meerwein–Ponndorf–Verley reduction of α,β-unsaturated aldehydes