Effect of pore diameter of Ni–Mo/Al-SBA-15 catalysts on the hydrotreating of heavy gas oil

Mouli, K. Chandra; Soni, Kapil; Dalai, Ajay K.; Adjaye, John

doi:10.1016/j.apcata.2011.07.001

Cited by 61 publications

(25 citation statements)

References 37 publications

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“…To study the effect of different pore diameters, the SBA-15-supported catalysts having pore diameters in the range 5–20 nm were screened for hydrotreating of heavy gas oil [27,28,29]. …”

Section: Influence Of Supportmentioning

confidence: 99%

“…The control of the support’s pore diameter is of paramount importance for SBA-15-based hydrotreating catalysts, which has diffusion limitations of large feed molecules to enter into unidirectional channels of the SBA-15. To study the effect of different pore diameters, the SBA-15-supported catalysts having pore diameters in the range 5–20 nm were screened for hydrotreating of heavy gas oil [ 27 , 28 , 29 ].…”

Section: Influence Of Supportmentioning

confidence: 99%

“…During the last two decades, various mesoporous structures have been synthesized, which can be roughly classified into three categories based on the pore types: nearly spherical cage, cylindrical channel and bi-continuous channel [19]. Among different ordered mesoporous silicas, SBA-type silicas are the most frequently studied [13,14,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

SBA-15 Mesoporous Silica as Catalytic Support for Hydrodesulfurization Catalysts—Review

et al. 2013

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SBA-15 is an interesting mesoporous silica material having highly ordered nanopores and a large surface area, which is widely employed as catalyst supports, absorbents, drug delivery materials, etc. Since it has a lack of functionality, heteroatoms and organic functional groups have been incorporated by direct or post-synthesis methods in order to modify their functionality. The aim of this article is to review the state-of-the-art related to the use of SBA-15-based mesoporous systems as supports for hydrodesulfurization (HDS) catalysts.

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“…To study the effect of different pore diameters, the SBA-15-supported catalysts having pore diameters in the range 5–20 nm were screened for hydrotreating of heavy gas oil [27,28,29]. …”

Section: Influence Of Supportmentioning

confidence: 99%

Section: Influence Of Supportmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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SBA-15 Mesoporous Silica as Catalytic Support for Hydrodesulfurization Catalysts—Review

et al. 2013

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“…The stricter environmental regulations linked with the rising dependence on heavy oils obtained from bitumen are the huge obstacles confronting the petroleum industries [44]. In the past years, there has been a reasonable increase in awareness about environmental protection, and consequently, a law limiting the sulphur contents in fuels has been enforced across the globe.…”

Section: Ecological Restrictions On Quality Characteristics Of Oilsmentioning

confidence: 99%

“…Jointly, these two factors influenced the active components' dispersion, their reducibility, as well as sulphidability, and the substrate molecule's accessibility to the catalytic sites. Thus, the vital problem made more crucial by the strict regulations concerning the permissible sulphur level in fuels is the discovery of good support for the Ni-Mo catalysts [5,44,90]. The only known support utilized in industrial HDS catalysts is γ-Al 2 O 3 .…”

Section: Support For Metallic Compositesmentioning

confidence: 99%

Sustainable development and enhancement of cracking processes using metallic composites

et al. 2021

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Metallic composites represent a vital class of materials that has gained increased attention in crude oil processing as well as the production of biofuel from other sources in recent times. Several catalytic materials have been reported in the literature for catalytic cracking, particularly, of crude oil. This review seeks to provide a comprehensive overview of existing and emerging methods/technologies such as metal–organic frameworks (MOFs), metal–matrix composites (MMCs), and catalytic support materials, to bridge information gaps toward sustainable advancement in catalysis for petrochemical processes. There is an increase in industrial and environmental concern emanating from the sulphur levels of oils, hence the need to develop more efficient catalysts in the hydrotreatment (HDS and HDN) processes, and combating the challenge of catalyst poisoning and deactivation; in a bid to improving the overall quality of oils and sustainable use of catalyst. Structural improvement, high thermal stability, enhanced cracking potential, and environmental sustainability represent the various benefits accrued to the use of metallic composites as opposed to conventional catalysts employed in catalytic cracking processes.

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Catalytic pyrolysis of rice husk to selectively produce furfural over zeolite beta with post aluminum impregnation

Anwar

Aslam

2023

Env Prog and Sustain Energy

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In the present work, three zeolite‐beta based catalysts with post impregnation of aluminum are evaluated for conversion of rice husk to furfural at atmospheric pressure in the presence of sodium chloride as promoter. The synthesized catalysts were characterized by nitrogen adsorption–desorption isotherm, scanning electron microscopy, X‐ray diffraction, and pyridine Fourier transform infrared spectroscopy. The activity of in house synthesized/modified catalysts is studied at preliminary optimized reaction conditions of 375°C and 47 min with variation in feed/catalyst/promoter ratio. Purity and yield of furfural was obtained by gas chromatography analysis with flame ionization detector in a batch reactor. Results shows that zeolite beta with 5 wt % post aluminum impregnation gave highest yield of bio‐oil (60.3 wt%) with 88% selectivity toward furfural in the presence of sodium chloride (5 wt% of feed) and sulfuric acid (10 wt% of feed).

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Effect of pore diameter of Ni–Mo/Al-SBA-15 catalysts on the hydrotreating of heavy gas oil

Cited by 61 publications

References 37 publications

SBA-15 Mesoporous Silica as Catalytic Support for Hydrodesulfurization Catalysts—Review

SBA-15 Mesoporous Silica as Catalytic Support for Hydrodesulfurization Catalysts—Review

Sustainable development and enhancement of cracking processes using metallic composites

Catalytic pyrolysis of rice husk to selectively produce furfural over zeolite beta with post aluminum impregnation

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