Propene oligomerization to high-quality liquid fuels over Ni/HZSM-5

Li, Xuemin; Han, Dezhi; Wang, Hui; Liu, Guangbo; Wang, Bo; Li, Zhuo; Wu, Jinhu

doi:10.1016/j.fuel.2014.12.005

Cited by 61 publications

(38 citation statements)

References 32 publications

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“…BEA-hier seems to present the best compromise in terms of mesoporosity and acid properties of the Betab ased catalysts. [71,72] Although the catalystr equirementsm ay partly depend on the type of olefin substrate as deduced from the data reported by Li et al for the oligomerisation of propene over zeolites possessing MFI topology, [73] the conversion tended to increase with the molar ratio L/B, which somewhat parallels that verifiedf or the Beta based catalysts. Roughlyc omparabler elationships of acidity-catalytic performance were verified by considering the acid properties measured at 450 8C( Figure S7, Ta ble S2).…”

Section: Influence Of Materials Properties On Catalytic Performancementioning

confidence: 63%

“…[26,69,73] These analyses were validated using the ASTM D2887 Reference Gas Oil no. The fractions corresponding to the 170 8C( C 6 -C 10 )c ut characteristic of naphtha products (NCut), and to the 170-390 8Cc ut characteristic of diesel products (DCut, corresponding approximately to the C 10 -C 24 n-paraffinic range) were determined according to the ASTM D2887 method (standard test method for boiling range distribution of petroleum fractions by gas chromatography).…”

Section: Catalytic Testsmentioning

confidence: 99%

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Mesostructured Catalysts Based on the BEA Topology for Olefin Oligomerisation

et al. 2018

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Mesostructured solid acid catalysts based on the BEA topology were explored for olefin oligomerisation, which is an attractive synthetic route to produce clean, sulfur‐free fuels or fuel additives with reduced aromatics content. Specifically, the oligomerisation of 1‐butene, which may derive from (non‐)renewable sources, was performed under high pressure and continuous‐flow operation. The mesostructured catalysts consisted of a hierarchical zeotype (BEA‐hier) synthesized by a one‐pot approach using a dual‐function template and, on the other hand, a composite (BEA/TUD) possessing zeolite nanocrystallites embedded in a mesoporous matrix synthesised under hydrothermal conditions. The influence of the material properties, catalyst activation temperature and reaction parameters were investigated by combining characterisation, two‐dimensional gas chromatography combined with time‐of‐flight mass spectrometry (ToFMS) studies, and catalytic studies. The catalytic performances were compared to those of commercial nano/microcrystalline zeolites of different topologies and COD‐900 (type of catalyst for the conversion of olefins to distillates process). BEA‐hier performed superiorly in terms of conversion and space–time yields to diesel cut products.

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Section: Influence Of Materials Properties On Catalytic Performancementioning

confidence: 63%

Section: Catalytic Testsmentioning

confidence: 99%

Mesostructured Catalysts Based on the BEA Topology for Olefin Oligomerisation

et al. 2018

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“…Nevertheless, for the Ni/M 1EG sample, there was only one very weak desorption peak that appeared at approximately 192 • C, suggesting purely siliceous MCM-41 was short of acid sites [40]. After Ni impregnation of the HZSM-5 support, the acid amount was slightly less than that of HZSM-5 with the exception of a strong desorption peak shift to higher temperature; the temperature of the weak desorption peaks was almost unchanged, indicating that the loading of Ni mainly changed strong acid sites [41]. Particularly, the distribution and strength of the acid sites had been changed significantly after the additional introduction of MCM-41 into the Ni/HZSM-5 1EG sample.…”

Section: Catalyst Characterizationmentioning

confidence: 97%

Efficient Hydrogenolysis of Guaiacol over Highly Dispersed Ni/MCM-41 Catalyst Combined with HZSM-5

Qiu

Weng

et al. 2016

Catalysts

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Abstract:A series of MCM-41 supported Ni catalysts with high metal dispersion was successfully synthesized by simple co-impregnation using proper ethylene glycol (EG). The acquired Ni-based catalysts performed the outstanding hydrogenolysis activity of guaiacol. The effects of the synthesis parameters including drying temperature, calcination temperature, and metal loading on the physical properties of NiO nanoparticles were investigated through the use of X-ray diffraction (XRD). The drying temperature was found to significantly influence the particle sizes of NiO supported on MCM-41, but the calcination temperature and metal loading had less influence. Interestingly, the small particle size (≤3.3 nm) and the high dispersion of NiO particles were also obtained for co-impregnation on the mixed support (MCM-41:HZSM-5 = 1:1), similar to that on the single MCM-41 support, leading to excellent hydrogenation activity at low temperature. The guaiacol conversion could reach 97.9% at 150 • C, and the catalytic activity was comparative with that of noble metal catalysts. The hydrodeoxygenation (HDO) performance was also promoted by the introduction of acidic HZSM-5 zeolite and an 84.1% yield of cyclohexane at 240 • C was achieved. These findings demonstrate potential applications for the future in promoting and improving industrial catalyst performance.

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“…The acidity and selectivity of the catalyst are influenced by its pore shape, size and distribution [17]. Metals are usually used to modify zeolite's properties such as catalytic activity and selectivity because they are able to accommodate the acidity of zeolite [18]. Iliopoulou et al [19] investigated different transition metal-modified ZSM-5 (e.g., Co and Ni) for the catalytic cracking of biomass pyrolysis vapors and found that the transition metal-modified ZSM-5 improved the production of aromatics.…”

Section: Introductionmentioning

confidence: 99%