Techno-economic analysis of a sustainable process for converting CO<sub>2</sub> and H<sub>2</sub>O to feedstock for fuels and chemicals

Kulkarni, Aniruddha; Hos, Tomy; Landau, Miron V.; Fini, Daniel; Giddey, Sarbjit; Herskowitz, M.

doi:10.1039/d0se01125h

Cited by 14 publications

(14 citation statements)

References 38 publications

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“…The stability of the catalyst was tested for 4,000 h at 275°C, WHSV CO = 0.9 g CO h –1 g cat –1 and feed H 2 /CO = 0.7. The rate of deactivation was very mild, with only slight decrease in activity and selectivity after the initial 1,000 h …”

Section: Introductionmentioning

confidence: 98%

“…A series of experiments were performed on the Fe–Al–O spinel catalyst − ,− (loaded with 4 and 5.5 wt % K as promoter for the CO 2 and CO hydrogenation, respectively) to test activity, selectivity, and stability.…”

Section: Introductionmentioning

confidence: 99%

“…CO hydrogenation experiments were performed in rigs described elsewhere. , The syngas composition had a major effect on the performance of CO hydrogenation. The best performance was recorded with a H 2 /CO molar ratio of 0.7 at 50 bar.…”

Section: Introductionmentioning

confidence: 99%

“…The scope of this paper is to compare the performance and economic viability (techno-economic analysis) of the one-pot and two-stage CO 2 hydrogenation processes to C 5+ hydrocarbons and oxygenates carried out on the K/Fe–Al–O spinel catalyst, based on extensive published − ,− experimental work. The product is blending feedstock for gasoline and diesel fuels.…”

Section: Introductionmentioning

confidence: 99%

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Hydrogenation of CO₂ on Fe-Based Catalysts: Preferred Route to Renewable Liquid Fuels

Hos

Landau

Herskowitz

2022

Ind. Eng. Chem. Res.

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Catalytic hydrogenation of CO2 can be conducted either in one pot (CO2 hydrogenation) or in two stages (RWGS and CO hydrogenation). Its configuration consists of either three reactors in series with interim water removal (one-pot process) or CO2 separation and recycling (two-stage process) to reach high CO2 conversion. The two-stage process enables to reach optimal H2/CO and temperature in the hydrogenation reactor to yield higher productivity while minimizing production of the aqueous phase, which offset the advantages of the one-pot process. The techno-economic study determined that there is no apparent advantage in operating the hydrogenation reaction in one stage at current green hydrogen prices. The decision between the two routes should be based on catalyst stability and selectivity toward desired products. Blending 10% of liquid product from both processes with fossil fuels at current prices increases the fuel production cost by 30%, which can be offset by higher carbon pricing or equivalent incentives.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hydrogenation of CO₂ on Fe-Based Catalysts: Preferred Route to Renewable Liquid Fuels

Hos

Landau

Herskowitz

2022

Ind. Eng. Chem. Res.

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“…7 Solid oxide electrolysis cells (SOECs) have been considered to be a promising energy storage device for the electrochemical conversion of CO 2 to CO (CO 2 / CO + 0.5O 2 ) by virtue of their controllable electrochemical process, high energy efficiency and low cost compared with other technologies. 8,9 The generated CO can be directly used as fuel gas for electricity generation, or as a feedstock for syngas production. Therefore, the use of SOECs for CO 2 electrolysis is expected to play an important role in a "carbon-neutral" energy cycle system.…”

Section: Introductionmentioning

confidence: 99%

A highly efficient and stable perovskite cathode with in situ exsolved NiFe alloy nanoparticles for CO₂ electrolysis

Wang

Shen

et al. 2022

Sustainable Energy Fuels

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Viscosity and Interfacial Tension of Binary Mixtures Consisting of an n-Alkane, Branched Alkane, Primary Alcohol, or Branched Alcohol and a Dissolved Gas Using Equilibrium Molecular Dynamics Simulations

et al. 2022

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This study aims to characterize binary mixtures consisting of a liquid with a dissolved gas by determining their dynamic viscosity and interfacial tension using equilibrium molecular dynamics (EMD) simulations in the temperature range between (298 and 573) K and for solute mole fractions up to 0.20. With the help of a systematic variation of solvent and solute molecules, the influence of their molecular characteristics, e.g., in form of size, shape, or polarity, on the thermophysical properties of the mixtures is discussed. For this, eight different alkanes and alcohols with a carbon number between 12 and 40 as solvents and seven solutes in form of hydrogen, helium, methane, water, nitrogen, carbon monoxide, or carbon dioxide are studied. Using EMD simulations, the liquid dynamic viscosity is determined in the slightly compressed liquid phase close to saturation conditions. Simulations at vapor–liquid-equilibrium (VLE) are performed to determine the interfacial tension and to calculate the solute molecules at the vapor–liquid interface. To check the applicability of the EMD simulations, data for the dynamic viscosity and interfacial tension from this work are compared to experimental data of binary mixtures with the same solutes and similar solvents. The results from this work show that the impact of the dissolved gas on the thermophysical properties is strongly depending on its molecular characteristics. For example, the properties of mixtures containing dissolved He are usually within combined uncertainties with the ones of the pure solvent. In contrast, dissolving CO2 leads to a pronounced reduction in both properties at comparable solute mole fractions. For the molecular characteristics of the solvent, the carbon chain length is shown to influence mainly the interfacial tension and the polarity mainly influences the viscosity.

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Techno-economic analysis of a sustainable process for converting CO₂ and H₂O to feedstock for fuels and chemicals

Abstract: Environmentally-friendly and economically-competitive production of renewable fuels and chemicals from CO2 and H2O, harnessing renewable electricity, is a key component in the solution to climate change. Integration of highly efficient...

Cited by 14 publications

References 38 publications

Hydrogenation of CO₂ on Fe-Based Catalysts: Preferred Route to Renewable Liquid Fuels

Hydrogenation of CO₂ on Fe-Based Catalysts: Preferred Route to Renewable Liquid Fuels

A highly efficient and stable perovskite cathode with in situ exsolved NiFe alloy nanoparticles for CO₂ electrolysis

Viscosity and Interfacial Tension of Binary Mixtures Consisting of an n-Alkane, Branched Alkane, Primary Alcohol, or Branched Alcohol and a Dissolved Gas Using Equilibrium Molecular Dynamics Simulations

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Techno-economic analysis of a sustainable process for converting CO2 and H2O to feedstock for fuels and chemicals

Abstract: Environmentally-friendly and economically-competitive production of renewable fuels and chemicals from CO2 and H2O, harnessing renewable electricity, is a key component in the solution to climate change. Integration of highly efficient...

Cited by 14 publications

References 38 publications

Hydrogenation of CO2 on Fe-Based Catalysts: Preferred Route to Renewable Liquid Fuels

Hydrogenation of CO2 on Fe-Based Catalysts: Preferred Route to Renewable Liquid Fuels

A highly efficient and stable perovskite cathode with in situ exsolved NiFe alloy nanoparticles for CO2 electrolysis

Viscosity and Interfacial Tension of Binary Mixtures Consisting of an n-Alkane, Branched Alkane, Primary Alcohol, or Branched Alcohol and a Dissolved Gas Using Equilibrium Molecular Dynamics Simulations

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Product

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Techno-economic analysis of a sustainable process for converting CO₂ and H₂O to feedstock for fuels and chemicals

Hydrogenation of CO₂ on Fe-Based Catalysts: Preferred Route to Renewable Liquid Fuels

Hydrogenation of CO₂ on Fe-Based Catalysts: Preferred Route to Renewable Liquid Fuels

A highly efficient and stable perovskite cathode with in situ exsolved NiFe alloy nanoparticles for CO₂ electrolysis