Methanol synthesis from CO2: A mechanistic overview

Azhari, Noerma J.; Erika, Denanti; Mardiana, St; Ilmi, Thalabul; Gunawan, Melia Laniwati; Makertihartha, Igbn; Kadja, Grandprix T.M.

doi:10.1016/j.rineng.2022.100711

Cited by 53 publications

(15 citation statements)

References 111 publications

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“…The processes of methanol/DME synthesis from CO 2 and the conversion of oxygenates to hydrocarbons have reached considerable level and technological development. − Similarly, the conversion of methanol to hydrocarbons has also progressed. − However, the optimal conditions for the integrated process differ from those of the individual reaction stages. Moreover, the composition of the reaction medium is also different.…”

Section: Introductionmentioning

confidence: 99%

Kinetic Model for the Direct Conversion of CO₂/CO into Light Olefins over an In₂O₃–ZrO₂/SAPO-34 Tandem Catalyst

Portillo,

Parra,

Aguayo

et al. 2024

ACS Sustainable Chem. Eng.

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An original kinetic model is proposed for the direct production of light olefins by hydrogenation of CO 2 /CO (CO x ) mixtures over an In 2 O 3 −ZrO 2 /SAPO-34 tandem catalyst, quantifying deactivation by coke. The reaction network comprises 12 individual reactions, and deactivation is quantified with expressions dependent on the concentration of methanol (as coke precursor) and H 2 O and H 2 (as agents attenuating coke formation). The experimental results were obtained in a fixed-bed reactor under the following conditions: In 2 O 3 −ZrO 2 /SAPO-34 mass ratio, 0/1−1/0; 350−425 °C; 20−50 bar; H 2 /CO x ratio, 1−3; CO 2 /CO x ratio, 0−1; space time, 0−10 g In2O3−ZrO2 h mol C −1 , 0−20 g SAPO-34 h mol C −1; time, up to 500 h; H 2 O and CH 3 OH in the feed, up to 5% vol. The utility of the model for further scale-up studies is demonstrated by its application in optimizing the process variables (temperature, pressure, and CO 2 /CO x ratio). The model predicts an olefin yield higher than 7% (selectivity above 60%), a CO x conversion of 12% and a CO 2 conversion of 16% at 415 °C and 50 bar, for a CO 2 /CO x = 0.5 in the feed. Additionally, an analysis of the effect of In 2 O 3 −ZrO 2 and SAPO-34 loading in the configuration of the tandem catalyst is conducted, yielding 17% olefins and complete conversion of CO 2 under full water removal conditions.

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Section: Introductionmentioning

confidence: 99%

Kinetic Model for the Direct Conversion of CO₂/CO into Light Olefins over an In₂O₃–ZrO₂/SAPO-34 Tandem Catalyst

Portillo,

Parra,

Aguayo

et al. 2024

ACS Sustainable Chem. Eng.

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“…Pd-based catalysts have proven to offer superior catalytic activities toward the CO 2 -to-CH 3 OH conversion. 1,6,7 In the thermocatalysis process, CH 3 OH was produced by the Pd catalysts with a twofold selectivity toward methanol but with a low CO 2 conversion ratio compared with the conventional Cu catalyst. 1,7 The high selectivity of the Pd catalyst is attributed to the stabilization of the Pd catalyst surface toward the formate intermediate, 6,8 which is an important precursor for methanol synthesis.…”

Section: Introductionmentioning

confidence: 99%

“…1,6,7 In the thermocatalysis process, CH 3 OH was produced by the Pd catalysts with a twofold selectivity toward methanol but with a low CO 2 conversion ratio compared with the conventional Cu catalyst. 1,7 The high selectivity of the Pd catalyst is attributed to the stabilization of the Pd catalyst surface toward the formate intermediate, 6,8 which is an important precursor for methanol synthesis. 1,7,9 On the other hand, the Pd alloy catalysts have emerged as promising ones for the electrocatalytic CO 2 -to-CH 3 OH conversion.…”

Section: Introductionmentioning

confidence: 99%

“…1,7 The high selectivity of the Pd catalyst is attributed to the stabilization of the Pd catalyst surface toward the formate intermediate, 6,8 which is an important precursor for methanol synthesis. 1,7,9 On the other hand, the Pd alloy catalysts have emerged as promising ones for the electrocatalytic CO 2 -to-CH 3 OH conversion. The PdCu alloy with a high Pd content of 83% was proven to have excellent CO 2 conversion to methanol with high selectivity and stability.…”

Section: Introductionmentioning

confidence: 99%

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Carbon dioxide conversion to methanol on a PdCo bimetallic catalyst

Thanh,

Le,

Chihaia

et al. 2024

Phys. Chem. Chem. Phys.

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“…But what are the means to achieve this? It can be seen that every day, fossil fuel is still maintaining its leading position while its weaknesses are being ignored [8]. This has prompted a transition towards clean energy in all sectors of the economy, including the electricity sector [9].…”

Section: Introductionmentioning

confidence: 99%

Production of Electricity at the European Union Level vs. Romania

Toró¹

2023

JGELCD

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The purpose of this paper is to carry out a quantitative analysis of the electricity production at the level of the European Union (EU) and in Romania, in the period of 2011-2020. To address the current environmental concerns, the package "Fit for 55" proposes that by 2050, most of the energy production will have to come from renewable sources, but the question is whether this desideratum can indeed be achieved. Among the methods used in scientific research, the quantitative analysis was selected and applied in this paper, in order to carry out a detailed statistical analysis on the trend of increase or decrease in the electricity production from different energy resources, and then comparative analysis was performed, so as to draw relevant conclusions in this respect. Through this study, it can be found that, at the level of the European Union, the electricity production from renewable energy resources is increasing, while that from solid fossil fuels is decreasing. In Romania, the same trend of increase and decrease can be observed, except on a smaller scale. Accordingly, the greatest increase in electricity production was recorded from renewable energy resources, for both the EU and Romania, while the biggest decrease in electricity production from fossil fuels. In order to address the decarbonization of the energy system in Romania, the hypothesis that the decrease in total electricity production is due to the decrease in electricity production from solid fossil fuels was tested. However, this hypothesis was only partially confirmed, since the production of electricity from other energy resources, apart from renewable resources and natural gas, also experienced a similar downward trend.

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Methanol synthesis from CO2: A mechanistic overview

Cited by 53 publications

References 111 publications

Kinetic Model for the Direct Conversion of CO₂/CO into Light Olefins over an In₂O₃–ZrO₂/SAPO-34 Tandem Catalyst

Kinetic Model for the Direct Conversion of CO₂/CO into Light Olefins over an In₂O₃–ZrO₂/SAPO-34 Tandem Catalyst

Carbon dioxide conversion to methanol on a PdCo bimetallic catalyst

Production of Electricity at the European Union Level vs. Romania

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Methanol synthesis from CO2: A mechanistic overview

Cited by 53 publications

References 111 publications

Kinetic Model for the Direct Conversion of CO2/CO into Light Olefins over an In2O3–ZrO2/SAPO-34 Tandem Catalyst

Kinetic Model for the Direct Conversion of CO2/CO into Light Olefins over an In2O3–ZrO2/SAPO-34 Tandem Catalyst

Carbon dioxide conversion to methanol on a PdCo bimetallic catalyst

Production of Electricity at the European Union Level vs. Romania

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Product

Resources

About

Kinetic Model for the Direct Conversion of CO₂/CO into Light Olefins over an In₂O₃–ZrO₂/SAPO-34 Tandem Catalyst

Kinetic Model for the Direct Conversion of CO₂/CO into Light Olefins over an In₂O₃–ZrO₂/SAPO-34 Tandem Catalyst