Methanol synthesis from syngas obtained by supercritical water reforming of glycerol

Ortiz, F.J. Gutiérrez; Serrera, A.; Galera, S.; Ollero, P.

doi:10.1016/j.fuel.2012.09.073

Cited by 77 publications

(43 citation statements)

References 33 publications

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“…Finally, the self-sustaining system was integrated with methanol synthesis process, in which the PSA unit was adjusted to produce syngas (Scheme 20). 907 Ortiz et al reported that a specific methanol production of 0.270 kg methanol/kg glycerol as well as an overall energy efficiency of 38% were obtained. Moreover, CO 2 sequestration in PSA unit yielded 0.38 kg CO 2 /kg glycerol, providing added value for the proposed process.…”

Section: Supercritical Water Reformingmentioning

confidence: 99%

Catalytic Reforming of Oxygenates: State of the Art and Future Prospects

2016

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This Review describes recent advances in the design, synthesis, reactivity, selectivity, structural, and electronic properties of the catalysts for reforming of a variety of oxygenates (e.g., from simple monoalcohols to higher polyols, then to sugars, phenols, and finally complicated mixtures like bio-oil). A comprehensive exploration of the structure-activity relationship in catalytic reforming of oxygenates is carried out, assisted by state-of-the-art characterization techniques and computational tools. Critical emphasis has been given on the mechanisms of these heterogeneous-catalyzed reactions and especially on the nature of the active catalytic sites and reaction pathways. Similarities and differences (reaction mechanisms, design and synthesis of catalysts, as well as catalytic systems) in the reforming process of these oxygenates will also be discussed. A critical overview is then provided regarding the challenges and opportunities for research in this area with a focus on the roles that systems of heterogeneous catalysis, reaction engineering, and materials science can play in the near future. This Review aims to present insights into the intrinsic mechanism involved in catalytic reforming and provides guidance to the development of novel catalysts and processes for the efficient utilization of oxygenates for energy and environmental purposes.

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Section: Supercritical Water Reformingmentioning

confidence: 99%

Catalytic Reforming of Oxygenates: State of the Art and Future Prospects

2016

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“…There are several value-added applications to transform glycerol into other chemical commodities, such as hydrogen, − methanol, − ethanol, ,− and fuel additives. − …”

Section: Introductionmentioning

confidence: 99%

Solketal Production from Glycerol Ketalization with Acetone: Catalyst Selection and Thermodynamic and Kinetic Reaction Study

Moreira

Faria

Ribeiro

et al. 2019

Ind. Eng. Chem. Res.

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In this work, the main results of a thermodynamic and kinetic study of glycerol ketalization to produce solketal in the presence of a solvent are presented. A catalyst and a solvent screening was carried out leading to the selection of Amberlyst-35 ion-exchange resin and ethanol as the most suitable materials for this reaction. A parametric study allowed one to determine reaction equilibrium and kinetic parameters in a batch reactor in the absence of external mass-transfer limitations. Regarding reaction thermodynamic equilibrium, a standard enthalpy of −20.1 ± 1.1 kJ mol–1 and a Gibbs free energy of 1.4 ± 0.3 kJ mol–1 were obtained. Reaction kinetics was studied assuming different reaction rate laws to fit the experimental data obtained: Pseudo-Homogeneous (PH), Langmuir–Hinshelwood–Hougen–Watson (LHHW), and Eley–Rideal (ER). The experimental results revealed that the reaction kinetics behavior could be accurately described by the LHHW reaction rate law, considering the presence of internal mass-transfer resistances. The activation energy for the overall reaction was found to be 69.0 ± 6.6 kJ mol–1.

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“…Therefore, according to the results of Figure , the optimum WHSV was 2 h −1 . At this condition, the mole ratio of H 2 /CO was close to 3, which was advantageous for the F‐T synthesis .…”

Section: Resultsmentioning

confidence: 87%

Preparation of syngas by reforming of biological glycerol on charcoal catalyst

Yan

2016

Env Prog and Sustain Energy

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Preparation of syngas by reforming of biological glycerol on charcoal has been studied in a fixed bed reactor. The results indicated that charcoal was a novel kind of catalyst, which not only had an active effect on the reforming process, but can decrease the cost of production. The syngas yield, glycerol conversion, and H 2 /CO could reach 1.37 m 3 /kg, 76.78%, and 3.04, respectively, at the conditions of 8008C, S/C of 4, WHSV of 2 h 21 . Characterizations of fresh charcoal and used charcoal were analyzed with thermogravimetry, scanning electron microscopy, and BET. The results indicated that the coke from the polymerization of glycerol might be in an amorphous state, which was the reason of the decrease of surface area and average pore size of charcoal.

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Methanol synthesis from syngas obtained by supercritical water reforming of glycerol

Cited by 77 publications

References 33 publications

Catalytic Reforming of Oxygenates: State of the Art and Future Prospects

Catalytic Reforming of Oxygenates: State of the Art and Future Prospects

Solketal Production from Glycerol Ketalization with Acetone: Catalyst Selection and Thermodynamic and Kinetic Reaction Study

Preparation of syngas by reforming of biological glycerol on charcoal catalyst

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