Hydrotreating catalysts supported on organized mesoporous alumina: Optimization of Mo deposition and promotional effects of Co and Ni

Kaluža, Luděk; Gulková, Daniela; Šolcová, Olga; Žilková, Naděžda; Čejka, Jiřı́

doi:10.1016/j.apcata.2008.09.002

Cited by 34 publications

(18 citation statements)

References 55 publications

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“…Several efforts to understand the role of support on the activity and selectivity metal sulfides catalysts used for deoxygenation of triglycerides were reported [67,74]. Specifically, mesoporous materials have shown great potential as catalyst supports [75,76] and have been reported to provide some advantages over conventional alumina support in hydrotreating applications [77,78]. Organized-mesoporousalumina-supported CoMo sulfided catalysts gave higher conversion of triglycerides than industrial-alumina-supported CoMo under the same reaction conditions (250-310°C, 7 MPa) [74].…”

Section: Supported Metal Sulfides Catalystsmentioning

confidence: 91%

Utilization of Triglycerides and Related Feedstocks for Production of Clean Hydrocarbon Fuels and Petrochemicals: A Review

Kubičková

Kubička

2010

Waste Biomass Valor

161

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Catalytic deoxygenation of triglycerides and related feedstocks for production of biofuels is reviewed in this paper. Green diesel, triglyceride-based hydrocarbons in diesel boiling range, is an attractive alternative to biodiesel-a product of transesterification of vegetable oils, particularly due to its superior fuel properties and full compatibility with current diesel fuels. Two basic approaches to production of green diesel-(i) hydrodeoxygenation of triglycerides and related compounds over metal sulfide catalysts and (ii) deoxygenation over supported noble metal catalysts are thoroughly discussed from the point of view of reaction conditions, catalyst composition and reaction pathways and products. Furthermore, catalytic cracking of triglycerides and related feedstocks over microporous and mesoporous catalysts is reviewed as well. It constitutes an interesting alternative to deoxygenation using hydrotreating and noble metal catalysts as it does not consume hydrogen. It provides a wide spectrum of products reaching from olefins to green gasoline and diesel.

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Section: Supported Metal Sulfides Catalystsmentioning

confidence: 91%

Utilization of Triglycerides and Related Feedstocks for Production of Clean Hydrocarbon Fuels and Petrochemicals: A Review

Kubičková

Kubička

2010

Waste Biomass Valor

161

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“…The reactions over modified mesoporous aluminas include transesterification of vegetable oils [39], Fischer-Tropsch synthesis [40,41] or hydrodesulfurization [42][43][44]. Further on, mesoporous molecular sieves are considered for synthesis of novel heterogeneous reusable catalysts and those exhibiting even chiral properties [19,45].…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Catalysis Over Mesoporous Molecular Sieves

2009

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This overview covers the recent achievements in the application of mesoporous molecular sieves as catalysts and catalyst supports. Main structural and textural features are outlined in relation to the novel synthesis approaches of mesoporous molecular sieves and understanding of their properties. For application of mesoporous molecular sieves as catalysts different ways of introduction of active sites on their surfaces are provided. The main part describes selected catalytic reactions catalyzed by mesoporous molecular sieves focused on very recent papers. The examples include metathesis, acylation reactions, C-C coupling reactions of Heck and Suzuki types, basecatalyzed reactions (Knoevenagel and Michael additions, Claisen-Schmidt condensation, Tischenko reaction) and last but not least immobilization of organometallic complexes for different catalytic applications including chiral catalysts.

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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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Hydrotreating catalysts supported on organized mesoporous alumina: Optimization of Mo deposition and promotional effects of Co and Ni

Cited by 34 publications

References 55 publications

Utilization of Triglycerides and Related Feedstocks for Production of Clean Hydrocarbon Fuels and Petrochemicals: A Review

Utilization of Triglycerides and Related Feedstocks for Production of Clean Hydrocarbon Fuels and Petrochemicals: A Review

Recent Advances in Catalysis Over Mesoporous Molecular Sieves

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

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