Synthesis of renewable aviation fuel additives with aromatic aldehydes and methyl isobutyl ketone under solvent-free conditions

Han, Fengan; Xu, Jingyuan; Li, Guangyi; Xu, Jilei; Wang, Aiqin; Ye, Cong; Zhang, Tao; Li, Ning

doi:10.1039/d0se01544j

Cited by 4 publications

(4 citation statements)

References 58 publications

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Section: Production Of Cycloalkane Liquid Biofuelsmentioning

confidence: 99%

“…Zhang’s group − discovered that this hydrogenation-driven ring constitution tactic was potent, not solely for aromatic entities bearing -OCH 3 or -OH groups but also for aromatic substances encompassing carbonyl groups. Cyclohexanone (or MIBK , ) was first used for aldol condensation reaction with methylbenzaldehyde. The aldol condensation product as obtained was hydrocyclized under the catalysis of Pd/C (or Ru/C, Pt/C) to obtain high-density polycycloalkanes (Figure f, g).…”

Section: Production Of Cycloalkane Liquid Biofuelsmentioning

confidence: 99%

“…The HDO products 1-methyldodecahydro-1 H -fluorene and 3-methyldodecahydro-1 H -fluorene have the density up to 0.99 g/mL and 0.96 g/mL at 298 K, respectively. When benzaldehyde and MIBK were used as raw materials to prepare high-density bicyclic alkanes through acid catalyzed aldol condensation reaction and HDO reaction, the situation was slightly different . Under the solvent-free conditions, the aldol condensation of methyl benzaldehyde and MIBK occurred over the Amberlyst-15 catalyst, and 89.8% of the aldol condensation product was obtained after reacting at 373 K for 10 h. However, unlike the HDO/cyclization reaction of the condensation product of cyclopentanone and benzaldehyde, 96% of bicyclic alkanes could be obtained by the HDO reaction over the Ru/C catalyst, while only monocyclic products could be obtained over the Pt/C or Pd/C catalyst (Figure g).…”

Section: Production Of Cycloalkane Liquid Biofuelsmentioning

confidence: 99%

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Production of Renewable Hydrocarbon Biofuels with Lignocellulose and Its Derivatives over Heterogeneous Catalysts

Li,

Wang,

Pang

et al. 2024

Chem. Rev.

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In recent years, the issues of global warming and CO 2 emission reduction have garnered increasing global attention. In the 21st Conference of the Parties (convened in Paris in 2015), 179 nations and the European Union signed a pivotal agreement to limit the global temperature increase of this century to well below 2 K above preindustrial levels. To fulfill this objective, extensive research has been conducted to use renewable energy sources as potential replacements for traditional fossil fuels. Among them, the production of hydrocarbon transportation fuels from CO 2 -neutral and renewable biomass has proven to be a particularly promising solution due to its compatibility with existing infrastructure. This review systematically summarizes research progress in the synthesis of liquid hydrocarbon biofuels from lignocellulose during the past two decades. Based on the chemical structure (including n-paraffins, iso-paraffins, aromatics, and cycloalkanes) of hydrocarbon transportation fuels, the synthesis pathways of these biofuels are discussed in four separate sections. Furthermore, this review proposes three guiding principles for the design of practical hydrocarbon biofuels, providing insights into future directions for the development of viable biomass-derived liquid fuels.

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Section: Production Of Cycloalkane Liquid Biofuelsmentioning

confidence: 99%

Section: Production Of Cycloalkane Liquid Biofuelsmentioning

confidence: 99%

Section: Production Of Cycloalkane Liquid Biofuelsmentioning

confidence: 99%

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Production of Renewable Hydrocarbon Biofuels with Lignocellulose and Its Derivatives over Heterogeneous Catalysts

Li,

Wang,

Pang

et al. 2024

Chem. Rev.

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“…Aldol condensation is currently used to synthesize fine chemicals [5,23,24], and it holds a promising potential for development of sustainable aviation fuels [25][26][27][28] and bio-based monomers [29,30]. In addition, it is a suitable reaction for probing the acid-base character of catalysts as only the accessible, i.e., catalytically active basic sites can be reached by the reactants in both mixed oxides and reconstructed hydrotalcites.…”

Section: Introductionmentioning

confidence: 99%

On the Effect of the M3+ Origin on the Properties and Aldol Condensation Performance of MgM3+ Hydrotalcites and Mixed Oxides

et al. 2021

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Hydrotalcites (HTCs) are promising solid base catalysts to produce advanced biofuels by aldol condensation. Their main potential lies in the tunability of their acid-base properties by varying their composition. However, the relationship between the composition of hydrotalcites, their basicity, and their catalytic performance has not yet been fully revealed. Here, we investigate systematically the preparation of HTCs with the general formula of Mg6M3+2(OH)16CO3·4H2O, where M3+ stands for Al, Ga, Fe, and In, while keeping the Mg/M3+ equal to 3. We use an array of analytical methods including XRD, N2 physisorption, CO2-TPD, TGA-MS, FTIR-ATR, and SEM to assess changes in the properties and concluded that the nature of M3+ affected the HTC crystallinity. We show that the basicity of the HTC-derived mixed oxides decreased with the increase in atomic weight of M3+, which was reflected by decreased furfural conversion in its aldol condensation with acetone. We demonstrate that all MgM3+ mixed oxides can be fully rehydrated, which boosted their activity in aldol condensation. Taking all characterization results together, we conclude that the catalytic performance of the rehydrated HTCs is determined by the “host” MgO component, rather than the nature of M3+.

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On the influence of synthetic parameters on the properties and aldol condensation performance of the MgAl mixed oxides and rehydrated hydrotalcites

Korolova,

Dubnová,

Veselý

et al. 2024

Applied Clay Science

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Synthesis of renewable aviation fuel additives with aromatic aldehydes and methyl isobutyl ketone under solvent-free conditions

Abstract: High-density and low freezing point dicycloalkanes were synthesized by the aldol condensation of methyl isobutyl ketone with aromatic aldehydes followed by hydrodeoxygenation under solvent-free conditions.

Cited by 4 publications

References 58 publications

Production of Renewable Hydrocarbon Biofuels with Lignocellulose and Its Derivatives over Heterogeneous Catalysts

Production of Renewable Hydrocarbon Biofuels with Lignocellulose and Its Derivatives over Heterogeneous Catalysts

On the Effect of the M3+ Origin on the Properties and Aldol Condensation Performance of MgM3+ Hydrotalcites and Mixed Oxides

On the influence of synthetic parameters on the properties and aldol condensation performance of the MgAl mixed oxides and rehydrated hydrotalcites

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