Carbon Dioxide Emissions, Capture, Storage and Utilization: Review of Materials, Processes and Technologies

Gür, Turgut M.

doi:10.1016/j.pecs.2021.100965

Cited by 321 publications

(160 citation statements)

References 278 publications

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“…Contribution of each greenhouse effect is in general assessed by a combination of metrics; atmospher tration, average lifetime in the atmosphere and specific infrared radiation adso pacity. The latter two are combined in the Global Warming Potential (GWP) ind measures the total energy absorbed by a gas over a given time period (usually relative to the emissions of 1 tonne of CO2 [31]. Created by the authors using data from the International Energy Agency [2] (1 toe ≈ 41.87 GJ).…”

Section: The Past Present and Future Role Of Comentioning

confidence: 99%

“…Other uses of CO2 in the chemical industry are its involvement in dry In essence, CO 2 conversion describes its transformation into different compounds containing the carbon from the parent molecule of carbon dioxide. Recent advances in industrially used CO 2 showcase that each conversion pathway is inevitably associated with certain benefits and drawbacks [31,112,113]. Indeed, they can potentially lead to a plethora of products intended for the chemical and energy sectors and include organic synthesis or electro-reduction (CO 2 electrolysis), mineral carbonation or hydrogenation.…”

Section: Carbon Capture and Utilization (Ccu)mentioning

confidence: 99%

“…Moreover, an assessment of the main barriers for PCC schemes was also proposed with the evaluation of several process intensification technologies [5,99]. A particular focus on CCS technologies in a specific process is also available for refineries [100], power plants [83,86,98,101], the cement industry [64,[102][103][104] and for comparative assessments for various carbon-intensive industrial processes [5,31,105,106]. In terms of environmental impact of CCS schemes, the work by Volkart et al [107] provided a life cycle assessment (LCA) of carbon capture and storage in industry and power generation in Europe.…”

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confidence: 99%

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Recent Advances on CO2 Mitigation Technologies: On the Role of Hydrogenation Route via Green H2

et al. 2022

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The increasing trend in global energy demand has led to an extensive use of fossil fuels and subsequently in a marked increase in atmospheric CO2 content, which is the main culprit for the greenhouse effect. In order to successfully reverse this trend, many schemes for CO2 mitigation have been proposed, taking into consideration that large-scale decarbonization is still infeasible. At the same time, the projected increase in the share of variable renewables in the future energy mix will necessitate large-scale curtailment of excess energy. Collectively, the above crucial problems can be addressed by the general scheme of CO2 hydrogenation. This refers to the conversion of both captured CO2 and green H2 produced by RES-powered water electrolysis for the production of added-value chemicals and fuels, which are a great alternative to CO2 sequestration and the use of green H2 as a standalone fuel. Indeed, direct utilization of both CO2 and H2 via CO2 hydrogenation offers, on the one hand, the advantage of CO2 valorization instead of its permanent storage, and the direct transformation of otherwise curtailed excess electricity to stable and reliable carriers such as methane and methanol on the other, thereby bypassing the inherent complexities associated with the transformation towards a H2-based economy. In light of the above, herein an overview of the two main CO2 abatement schemes, Carbon Capture and Storage (CCS) and Carbon Capture and Utilization (CCU), is firstly presented, focusing on the route of CO2 hydrogenation by green electrolytic hydrogen. Next, the integration of large-scale RES-based H2 production with CO2 capture units on-site industrial point sources for the production of added-value chemicals and energy carriers is contextualized and highlighted. In this regard, a specific reference is made to the so-called Power-to-X schemes, exemplified by the production of synthetic natural gas via the Power-to-Gas route. Lastly, several outlooks towards the future of CO2 hydrogenation are presented.

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Section: The Past Present and Future Role Of Comentioning

confidence: 99%

Section: Carbon Capture and Utilization (Ccu)mentioning

confidence: 99%

mentioning

confidence: 99%

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Recent Advances on CO2 Mitigation Technologies: On the Role of Hydrogenation Route via Green H2

et al. 2022

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“…It is expected that the atmospheric CO 2 concentration will continue to rise over the next few decades as fossil fuels will still be the dominating energy source. Fossil-fueled power plants are major contributors among the anthropogenic sources of CO 2 emissions [ 2 ]. Nowadays, several methods are used for industrial CO 2 capture from gas streams, namely absorption by amine solutions, physical adsorption and chemical adsorption [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

The Nanofibrous CaO Sorbent for CO2 Capture

et al. 2022

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The nanofibrous CaO sorbent for high-temperature CO2 capture was fabricated by the calcination of electrospun composite filaments containing calcium acetylacetonate and polyacrylonitrile as a calcium-oxide precursor and a binder polymer, respectively. The calcination was carried out in air to prevent PAN carbonization and to obtain pure CaO nanofibers. The resulting mats of CaO nanofibers with the average diameter of 130 nm were characterized by a specific surface area of 31 m2/g, a CO2-uptake capacity of 16.4 mmol/g at the carbonation temperature of 618 °C, a hardness of 1.87 MPa, and the indentation Young’s modulus of 786 MPa. The low decarbonation temperature makes the fabricated sorbent promising, for example, for the calcium-looping technology of CO2 removal from the hot exhaust gases of fossil-fueled power plants.

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“…CCS involves capturing and transporting CO 2 to the storage site. The main challenge of the whole process is the capture of CO 2 , as the costs allied with this process are expensive and make CCS difficult to apply in the commercial sector ( Gür, 2022 ). Porous materials with pore sizes in the nanometer range could play an important role in CCS as they not only afford high adsorption competence and good selectivity but also have the benefit of low cost ( Singh et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Development of Uniform Porous Carbons From Polycarbazole Phthalonitriles as Durable CO2 Adsorbent and Supercapacitor Electrodes

et al. 2022

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Advances in new porous materials have recognized great consideration in CO2 capture and electrochemical energy storage (EES) applications. In this study, we reported a synthesis of two nitrogen-enriched KOH-activated porous carbons prepared from polycarbazole phthalonitrile networks through direct pyrolysis protocol. The highest specific surface area of the carbon material prepared by pyrolysis of p-4CzPN polymer reaches 1,279 m2 g−1. Due to the highly rigid and reticular structure of the precursor, the obtained c-4CzPN–KOH carbon material exhibits high surface area, uniform porosity, and shows excellent CO2 capture performance of 19.5 wt% at 0°C. Moreover, the attained porous carbon c-4CzPN–KOH showed high energy storage capacities of up to 451 F g−1 in aqueous electrolytes containing 6.0 M KOH at a current density of 1 A g-1. The prepared carbon material also exhibits excellent charge/discharge cycle stability and retains 95.9% capacity after 2000 cycles, indicating promising electrode materials for supercapacitors.

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Carbon Dioxide Emissions, Capture, Storage and Utilization: Review of Materials, Processes and Technologies

Cited by 321 publications

References 278 publications

Recent Advances on CO2 Mitigation Technologies: On the Role of Hydrogenation Route via Green H2

Recent Advances on CO2 Mitigation Technologies: On the Role of Hydrogenation Route via Green H2

The Nanofibrous CaO Sorbent for CO2 Capture

Development of Uniform Porous Carbons From Polycarbazole Phthalonitriles as Durable CO2 Adsorbent and Supercapacitor Electrodes

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