Ethanol dehydration to diethyl ether over ZSM-5 and β-Zeolite supported Ni W catalyst

Sarve, Dayaram Tulsiram; Singh, Sunit Kumar; Ekhe, J. D.

doi:10.1016/j.inoche.2022.109397

Cited by 12 publications

(3 citation statements)

References 80 publications

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“…It can be seen that the intensity of both bands shown in Figure b increased after the catalyst adsorbed the pyridine molecule. The band at 1650 cm –1 was attributed to the representative of pyridinium ions, which demonstrated the existence of Brønsted active sites from P(OH) groups, whereas at 1430 cm –1 , it was noticed due to the molecule of pyridine adsorbed to the Lewis acid sites. , These active sites inherently affect the dehydration process …”

Section: Resultsmentioning

confidence: 99%

“…66,67 These active sites inherently affect the dehydration process. 68 The N 2 physisorption isotherms of natural zeolite, zeolite-Ni, and zeolite-Ni(H 2 PO 4 ) 2 are shown in Figure 5. As can be seen in Figure 5, the zeolite and both modified zeolites had relatively similar N 2 adsorption−desorption isotherms which indicated that the structure zeolite was not altered by the modification of nickel and nickel phosphate.…”

Section: ■ Introductionmentioning

confidence: 99%

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Enhanced Isopropyl Alcohol Conversion over Acidic Nickel Phosphate-Supported Zeolite Catalysts

et al. 2022

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In this preliminary research, the catalytic activity of isopropyl alcohol conversion to diisopropyl ether through dehydration reaction catalyzed by zeolite-Ni and zeolite-Ni(H2PO4)2 was comparatively described. The natural zeolite was treated with 1% HF and 6 N HCl prior to modifications using the impregnation method. Isopropyl alcohol conversion was examined at a mild temperature of 150 °C for 3.5 h on the reflux system with various catalyst loadings. X-ray diffraction and Fourier transform infrared analysis confirmed the successful impregnation of nickel and nickel phosphate into the zeolite. Scanning electron microscopy analysis revealed a cubic-like structure on zeolite-Ni(H2PO4)2, whereas homogenously distributed nickel species were observed on the zeolite-Ni catalyst. Energy-dispersive X-ray spectroscopy analysis reinforced the accomplishment of zeolite modifications. The N2 physisorption isotherms showed a decline in the surface area and total pore volume of the zeolite because of the blocking of pores. The zeolite-Ni(H2PO4)2 catalyst had higher acidity than unmodified zeolite and zeolite-Ni catalysts, which inherently suggested that the presence of phosphate groups results in higher catalytic activity toward isopropyl alcohol. The highest catalytic activity was attained by 8 mEq/g metal loading zeolite-Ni(H2PO4)2 with isopropyl alcohol conversion of 81.51%, diisopropyl ether yield, and selectivity of 40.77 and 33.16%. The reusability study suggested that the zeolite-Ni(H2PO4)2 catalyst was still active and had sufficient catalytic activity stability toward isopropyl alcohol after the third cycle was reused. This nickel phosphate-based modified zeolite was adequately potential for diisopropyl ether production through isopropyl alcohol dehydration.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Enhanced Isopropyl Alcohol Conversion over Acidic Nickel Phosphate-Supported Zeolite Catalysts

et al. 2022

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“…This has been made possible by the wide range of structural and textural characteristics that can be achieved through neutralization, dealumination, doping, or promotion. [165][166][167] The promotion of zeolite catalysts using metals including transition metals, 46,168,169 alkali and alkaline earth metals, [170][171][172][173] and rare earth metals [174][175][176][177] has been shown to enhance the catalytic performance of such zeolite catalysts. 178 However, great care is required to avoid high metal content which may have a detrimental impact on the catalyst performance.…”

Section: Exploration Of Tunable Nature and Synthesis Mechanisms Of Ze...mentioning

confidence: 99%

Bioethanol as a potential eco‐friendlier feedstock for catalytic production of fuels and petrochemicals

Anekwe

Isa

Oboirien

2023

J of Chemical Tech & Biotech

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Bioethanol, synthesized through the valorization of biomass resources, is of great importance to many industries. As bioethanol has become more abundant and its price has decreased, it has become an attractive candidate for application as a base material for the synthesis of a variety of petrochemicals and fuel through catalysis. In this article, a comprehensive review of the catalytic conversion of bioethanol into hydrocarbons, including olefins and gasoline, is presented. In addition, developments and potential research opportunities in the field of bioethanol catalysis are provided to enhance bioethanol conversion. According to the findings of the study, despite significant progress in bioethanol conversion, further research is needed to address several challenges that will enable improved biofuel and chemical production.

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Porous Al2O3-pillared bentonite synthesized by sonochemistry and its performance as a catalyst in diethyl ether production via ethanol dehydration

Wahyuningsih,

Saviola,

Wijaya

et al. 2024

Reac Kinet Mech Cat

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Ethanol dehydration to diethyl ether over ZSM-5 and β-Zeolite supported Ni W catalyst

Cited by 12 publications

References 80 publications

Enhanced Isopropyl Alcohol Conversion over Acidic Nickel Phosphate-Supported Zeolite Catalysts

Enhanced Isopropyl Alcohol Conversion over Acidic Nickel Phosphate-Supported Zeolite Catalysts

Bioethanol as a potential eco‐friendlier feedstock for catalytic production of fuels and petrochemicals

Porous Al2O3-pillared bentonite synthesized by sonochemistry and its performance as a catalyst in diethyl ether production via ethanol dehydration

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