3-D ordered mesoporous KIT-6 support for effective hydrodesulfurization catalysts

Soni, Kapil; Rana, B; Sinha, Anil K.; Bhaumik, Asim; Nandi, Mahasweta; Kumar, M. Pradeep; Dhar, G. Murali

doi:10.1016/j.apcatb.2009.02.010

Cited by 205 publications

(89 citation statements)

References 47 publications

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“…The commonly used mesoporous supportsf or hydrotreatment catalysts include Al 2 O 3 , [6] TiO 2 , [22] ZrO 2 , [23] zeolites, [24] and mesoporousS iO 2 . [25] Among them the mesostructured silica-based materials, such as MCM-41, [26] MCM-48, [27] HMS, [28] SBA-15, [29] and KIT-6, [30] have been extensively employed as HDS catalyst supports since they were first discovered. However,c ompared with the conventional microporous zeolites,p ure silicon materials have lower hydrothermal stabilitya nd much weaker acidity because of their electrically neutral Si frameworks.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Al‐Containing Spherical Mesocellular Silica Foams with Different Pore Sizes and Their Applications as Catalyst Supports for Hydrodesulfurization of Dibenzothiophene

et al. 2015

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In the present work, a series of Al‐containing spherical mesostructured cellular silica foams (SMCFs) with different ultra‐large pore sizes were successfully synthesized by simply adjusting the mass ratio (x) of the swelling agent 1,3,5‐trimethylbenzene (TMB) to P123. The as‐synthesized Al‐SMCFs‐x were utilized as NiMo catalyst supports for the hydrodesulfurization of dibenzothiophene. The characterization results showed that, compared with other studied NiMo/Al‐SMCFs‐x catalysts, the NiMo/Al‐SMCFs‐1.25 catalyst exhibited higher sulfidation degree, higher dispersions of Ni and Mo species, shorter length, and lower stacking number of MoS2 slabs. It was also found that the NiMo/Al‐SMCFs‐1.25 catalyst possessed suitable physicochemical parameters [i.e., ultra‐large pore size (27.5 nm), high surface area (383 m2 g−1), and large pore volume (1.34 cm3 g−1), resulting in the formation of more type II active sites with more brim active sites. Consequently, the NiMo/Al‐SMCFs‐1.25 catalyst displayed outstanding catalytic performance for the hydrodesulfurization of dibenzothiophene.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Al‐Containing Spherical Mesocellular Silica Foams with Different Pore Sizes and Their Applications as Catalyst Supports for Hydrodesulfurization of Dibenzothiophene

et al. 2015

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“…Segundo designação da IUPAC, esses materiais possuem diâmetro médio de poros entre 2 e 50 nm. Dentre os materiais mesoporosos o SBA-15 e o KIT-6, que possuem estruturas hexagonal e cúbica, respectivamente (KO; SHIN;CHOI, 2011;BOULAOUED et al, 2012) tem sido alvo de vários estudos recentemente, devido a suas características promissoras e suas aplicações variadas na área de catálise e meio ambiente (SONI et al, 2009;QIAN et al, 2012;HUSSAIN et al, 2013).…”

Section: Introductionunclassified

Síntese de materiais mesoporosos: um estudo comparativo entre o SBA-15 e o KIT-6

Fernandes¹,

Santos²,

Caldeira³

et al. 2015

Anais Do 5º Encontro Regional De Química &Amp; 4º Encontro Nacional De Química

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“…Among these approaches, support modification is an important one [2,3]. Wide variety of materials such as zeolites [4,5], Oxides such as SiO 2 [6], TiO 2 [7,8], ZrO 2 [9][10][11][12], Carbon [13] and mesoporous materials like mesoporous alumina [14], hexagonal mesoporous silica [15], MCM-41 [16][17][18], SBA-15 [19,20], KIT-6 [21], FSM-16 [22], mesoporous carbon [23] have been studied as supports for hydrotreating catalysts.…”

Section: Introductionmentioning

confidence: 99%

Influence of Frame Connectivity of SBA-15 and KIT-6 Supported NiMo Catalysts for Hydrotreating of Gas Oil

et al. 2010

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The feasibility of mesoporous silica as support to NiMo catalysts for hydrotreating of gas oil derived from Athabasca bitumen was tested in a trickle bed reactor at industrial conditions. High quality two dimensional (2D) hexagonal SBA-15 and three dimensional (3D) cubic KIT-6 supports were prepared by sol-gel method. The supports and catalysts were characterized by different characterization techniques such as N 2 physisorption, X-ray diffraction (XRD), Temperature programmed reduction (TPR), and DRIFT spectroscopy. The XRD and N 2 adsorption-desorption analysis shows the stability of structure after metal loadings. Presence of high NiMoS centres which is responsible for higher hydrotreating activities in KIT-6 supported catalysts is demonstrated by DRIFT spectroscopic analysis. HDN and HDS activities of NiMo catalysts supported on SBA-15 and KIT-6 were studied using coker light gas oil at temperature, pressure and LHSV of 370°C, 8.8 MPa and 2.0 h -1 , respectively. KIT-6 supported catalysts shows much higher hydrodesulfurization (HDS) and Hydrodenitrogenation(HDN) activities compared to SBA-15 counterpart due to the fact that 3D-interconnected mesopores caused better dispersion of active species and faster diffusion of reactants and products.

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3-D ordered mesoporous KIT-6 support for effective hydrodesulfurization catalysts

Cited by 205 publications

References 47 publications

Synthesis of Al‐Containing Spherical Mesocellular Silica Foams with Different Pore Sizes and Their Applications as Catalyst Supports for Hydrodesulfurization of Dibenzothiophene

Synthesis of Al‐Containing Spherical Mesocellular Silica Foams with Different Pore Sizes and Their Applications as Catalyst Supports for Hydrodesulfurization of Dibenzothiophene

Síntese de materiais mesoporosos: um estudo comparativo entre o SBA-15 e o KIT-6

Influence of Frame Connectivity of SBA-15 and KIT-6 Supported NiMo Catalysts for Hydrotreating of Gas Oil

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