Thermodynamic analysis of carbon dioxide hydrogenation to formic acid and methanol

Bello, Taofeeq O.; Bresciani, Antônio E.; Nascimento, Cláudio Augusto Oller do; Alves, Rita M.B.

doi:10.1016/j.ces.2021.116731

Cited by 27 publications

(19 citation statements)

References 50 publications

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“…These components are a mixture of the products of the reaction. The studied process considered the simultaneous production of methanol and formic acid under different reaction conditions . To compare the mass-based extraction of different ILs, the mass ratio of ILs to the solutes was set at an equal proportion in the LLE calculation.…”

Section: Resultsmentioning

confidence: 98%

“…The studied process considered the simultaneous production of methanol and formic acid under different reaction conditions. 96 To compare the mass-based extraction of different ILs, the mass ratio of ILs to the solutes was set at an equal proportion in the LLE calculation. For example, 100 g of water (phase 1), 100 g of formic acid (phase 2), and 100 g of the ionic liquid (phase 3) were set.…”

Section: Resultsmentioning

confidence: 99%

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Systematic Screening of Ionic Liquids for the Hydrogenation of Carbon Dioxide to Formic Acid and Methanol

Bello

Bresciani

Nascimento

et al. 2021

Ind. Eng. Chem. Res.

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A systematic approach for the selection of suitable ionic liquids (ILs) for the hydrogenation of carbon dioxide (CO 2 ) to formic acid and methanol as the reaction media and extraction solvent is presented. This approach combines phase equilibrium, gas solubility/capacity, physical property estimation, and toxicity, along with a simple regeneration process. First, independent predictions of the liquid−liquid equilibrium (LLE) of the component mixture (methanol and formic acid + ILs), gas solubility of CO 2 in different ILs, and physical properties are estimated with the conductor-like screening model for real solvents. Then, a qualitative selection of the ILs that satisfied gas solubility and LLE-based routes was selected. In addition, the toxicity of ILs in the environment was also taken into account. Finally, the separation performance of the top IL candidates with their product mixtures in a continuous process was evaluated to identify process-based optimal solvents.

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

Systematic Screening of Ionic Liquids for the Hydrogenation of Carbon Dioxide to Formic Acid and Methanol

Bello

Bresciani

Nascimento

et al. 2021

Ind. Eng. Chem. Res.

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“…In contrast to the previous production processes for MeOH and DME, there has been very little research reporting the experimental kinetics of the synthesis of FA, and most have only focused on the microscopic level, to the best of our knowledge. Therefore, in this study, the experimental data reported by Bello et al 67 at operating conditions of 293 K and 25 bar were used, in which a CO 2 conversion of up to 87.5% was obtained (Fig. 2(c)).…”

Section: Methodsmentioning

confidence: 99%

What is the best scenario to utilize landfill gas? Quantitative and qualitative approaches for technical, economic, and environmental feasibility

et al. 2022

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“…At 550 and 650 K, similar conversions could only be observed at pressures above approximately 3 and 7 bar, respectively. Previous studies have also estimated nearly 100% conversions of CO 2 and H 2 to FA or formate salts at low temperatures and high pressures …”

Section: Case Studiesmentioning

confidence: 98%

“…Previous studies have also estimated nearly 100% conversions of CO 2 and H 2 to FA or formate salts at low temperatures and high pressures. 57 It is also worth to mention that the high CO 2 conversion estimated from thermodynamics may not be experimentally achieved due to poor catalytic performance. 25 It is possible to observe that the temperature range varied up to 650 K; however, the adduct is likely thermally degraded at such high temperatures.…”

Section: Case Studiesmentioning

confidence: 99%

Thermodynamic Analysis of Carbon Dioxide Conversion Reactions. Case Studies: Formic Acid and Acetic Acid Synthesis

Alcântara

Pacheco

Bresciani

et al. 2021

Ind. Eng. Chem. Res.

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Carbon dioxide conversion processes are promising alternatives to reduce its industrial emissions. Most innovative processes are still at a low technological readiness level, and thermodynamic assessments are essential for their development. Thus, this work briefly describes the main aspects of thermodynamic analysis and its application for evaluating specific issues of carbon dioxide conversion reactions. The thermodynamic chemical equilibrium is briefly described. Several carbon dioxide conversion reactions to higher-value products are studied, regarding their thermochemistry and influences of temperature, pressure, and solvent (gas and liquid). Thermodynamic analyses are applied to two case studies of carbon dioxide conversion reactions to formic and acetic acids. High pressures, low temperatures, absence of a gas solvent, and abundant suitable liquids likely enhance the carbon dioxide conversion to the most promising products.

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Thermodynamic analysis of carbon dioxide hydrogenation to formic acid and methanol

Cited by 27 publications

References 50 publications

Systematic Screening of Ionic Liquids for the Hydrogenation of Carbon Dioxide to Formic Acid and Methanol

Systematic Screening of Ionic Liquids for the Hydrogenation of Carbon Dioxide to Formic Acid and Methanol

What is the best scenario to utilize landfill gas? Quantitative and qualitative approaches for technical, economic, and environmental feasibility

Thermodynamic Analysis of Carbon Dioxide Conversion Reactions. Case Studies: Formic Acid and Acetic Acid Synthesis

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