Carbon capture, storage and utilisation technologies: A critical analysis and comparison of their life cycle environmental impacts

Cuéllar-Franca, Rosa M.; Azapagic, Adisa

doi:10.1016/j.jcou.2014.12.001

Cited by 1,242 publications

(739 citation statements)

References 55 publications

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“…In this study, Life Cycle Assessment (LCA) is used as a decision-making tool for process development, enabling the prediction of the sustainability implications of the different alternatives. LCA is a widely used tool that is used to evaluate the net contribution of the use of carbon dioxide [22][23][24][25], and thus it can be used to compare the FA conventional process with both CO 2 utilization alternatives.…”

Section: Introductionmentioning

confidence: 99%

Formic Acid Manufacture: Carbon Dioxide Utilization Alternatives

2018

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Carbon dioxide (CO 2 ) utilization alternatives for manufacturing formic acid (FA) such as electrochemical reduction (ER) or homogeneous catalysis of CO 2 and H 2 could be efficient options for developing more environmentally-friendly production alternatives to FA fossil-dependant production. However, these alternatives are currently found at different technological readiness levels (TRLs), and some remaining technical challenges need to be overcome to achieve at least carbon-even FA compared to the commercial process, especially ER of CO 2 , which is still farther from its industrial application. The main technical limitations inherited by FA production by ER are the low FA concentration achieved and the high overpotentials required, which involve high consumptions of energy (ER cell) and steam (distillation). In this study, a comparison in terms of carbon footprints (CF) using the Life Cycle Assessment (LCA) tool was done to evaluate the potential technological challenges assuring the environmental competitiveness of the FA production by ER of CO 2 . The CF of the FA conventional production were used as a benchmark, as well as the CF of a simulated plant based on homogeneous catalysts of CO 2 and H 2 (found closer to be commercial). Renewable energy utilization as PV solar for the reaction is essential to achieve a carbon-even product; however, the CF benefits are still negligible due to the enormous contribution of the steam produced by natural gas (purification stage). Some ER reactor configurations, plus a recirculation mode, could achieve an even CF versus commercial process. It was demonstrated that the ER alternatives could lead to lower natural resources consumption (mainly, natural gas and heavy fuel oil) compared to the commercial process, which is a noticeable advantage in environmental sustainability terms.

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Section: Introductionmentioning

confidence: 99%

Formic Acid Manufacture: Carbon Dioxide Utilization Alternatives

2018

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“…However, most work in methanol and DME production focuses on biomass gasification routes rather than direct CO 2 hydrogenation. In fact, there seems to be a substantial lack of life-cycle assessments in direct CO 2 conversion into fuels (Cuellar-Franca and Azapagic, 2015).…”

Section: Introductionmentioning

confidence: 99%

Methanol and dimethyl ether from renewable hydrogen and carbon dioxide: Alternative fuels production and life-cycle assessment

Matzen

Demi̇rel

2016

Journal of Cleaner Production

223

103

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“…However, consideration of economic feasibility leads to an alternative to CCS: carbon capture, utilization and storage (CCUS). This is a process to turn the waste CO2 into valuable products such as chemicals and fuels, while at the same time contributing to climate change mitigation [3].…”

Section: Introductionmentioning

confidence: 99%

Rheology and Phase Behavior of Carbon Dioxide and Crude Oil Mixtures

Crawshaw

Trusler

et al. 2016

Energy Fuels

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KEYWORDSRheology, phase behavior, heavy crude oil, carbon dioxide, viscosity, non-Newtonian fluid ABSTRACTThe rheology of Zuata heavy crude oil, saturated with carbon dioxide, was studied at a temperature of 50 °C and pressures up to 220 bar. Observations of phase behavior were also reported and used to interpret the rheological data. The crude oil is very viscous and non-Newtonian at ambient pressure, but when brought into equilibrium with CO2 the non-Newtonian behavior was weakened and eventually disappeared at high CO2 pressures. When diluted with 10 wt% and 30 wt% toluene, the diluted crude oils and their mixtures with CO2 behaved as Newtonian fluids. The CO2 saturated mixture of the crude oil samples showed an exponential decrease in viscosity with increasing CO2 pressure, but an increase in viscosity at higher pressures. Observing through a view cell, the CO2 dissolution caused a swelling effect on the original crude. When saturated with CO2, the swelling effect also occurred on the 10 wt% diluted crude oil, but the volume of the oil rich phase was 2 decreased at higher pressures. However, for the 30 wt% diluted crude oil, a second liquid phase was observed on top of the oil rich phase, at pressures higher than the CO2 critical point. The mixture viscosity was inversely proportional to the CO2 solubility.

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Carbon capture, storage and utilisation technologies: A critical analysis and comparison of their life cycle environmental impacts

Cited by 1,242 publications

References 55 publications

Formic Acid Manufacture: Carbon Dioxide Utilization Alternatives

Formic Acid Manufacture: Carbon Dioxide Utilization Alternatives

Methanol and dimethyl ether from renewable hydrogen and carbon dioxide: Alternative fuels production and life-cycle assessment

Rheology and Phase Behavior of Carbon Dioxide and Crude Oil Mixtures

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