Technological advances in the transformative utilization of CO2 to value-added products

Alok, Aayush; Shrestha, Rakesh; Ban, Sagar; Devkota, Sijan; Uprety, Bibek; Joshi, Rajendra

doi:10.1016/j.jece.2021.106922

Cited by 36 publications

(13 citation statements)

References 221 publications

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“…However, CO 2 conversion to fuels (methanol, ethanol, syngas, and methane) and chemicals (formic acid and oxalic acid), which is already sufficiently developed technology for full-scale demonstration, seems to be the most promising alternative for the near future. Detailed studies on CCSU (carbon capture, storage, and utilization) technologies can be found elsewhere [17][18][19][20][21][22].…”

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confidence: 99%

Chemical Looping Combustion: A Brief Overview

et al. 2022

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The current development of chemical looping combustion (CLC) technology is presented in this paper. This technique of energy conversion enables burning of hydrocarbon fuels with dramatically reduced CO2 emission into the atmosphere, since the inherent separation of carbon dioxide takes place directly in a combustion unit. In the beginning, the general idea of the CLC process is described, which takes advantage of solids (so-called oxygen carriers) being able to transport oxygen between combustion air and burning fuel. The main groups of oxygen carriers (OC) are characterized and compared, which are Fe-, Mn-, Cu-, Ni-, and Co-based materials. Moreover, different constructions of reactors tailored to perform the CLC process are described, including fluidized-bed reactors, swing reactors, and rotary reactors. The whole systems are based on the chemical looping concept, such as syngas CLC (SG-CLC), in situ Gasification CLC (iG-CLC), chemical looping with oxygen uncoupling (CLOU), and chemical looping reforming (CLR), are discussed as well. Finally, a comparison with other pro-CCS (carbon capture and storage) technologies is provided.

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confidence: 99%

Chemical Looping Combustion: A Brief Overview

et al. 2022

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“…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%

“…Indeed, in realistic projected scenarios where CO 2 storage and standalone H 2 utilization are materialized to a certain extent, the complementary implementation of CO 2 hydrogenation projects can provide substantial versatility to the various systems and sectors, as will be required in the increasingly advanced societies of the future. This is based on the fact that the combined catalytic conversion of hydrogen and carbon dioxide is a process that can be realized via many different sources of energy and is not limited to the conventional thermal route [113]. Namely, the overall scheme of CO 2 hydrogenation can proceed by the provision of alternative forms of energy, i.e., light [28,[168][169][170], plasma [171][172][173] and electricity [125,174,175] as well as in the gas, solid and liquid phase either homogeneously [176][177][178] or heterogeneously [114,136,137,145,179,180].…”

Section: Integration Of Captured Co 2 With Res-derived Hmentioning

confidence: 99%

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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“…2 To address the environmental concern, the most promising procedure to reduce CO 2 emissions is the development of CO 2 capture and utilization (CCU) technology. 3 One of the promising approaches for the transformation of CO 2 from an exhaust stream into useful and valuable chemicals for industries is the cycloaddition reaction with epoxides to produce cyclic carbonates, which are widely used in various applications, such as precursors for polymerization reactions, batteries, pharmaceuticals, and also as aprotic polar solvents. [4][5][6][7] However, the conversion requires catalytic systems that can facilitate epoxide ring opening to generate an active intermediate for CO 2 conversion.…”

Section: Introductionmentioning

confidence: 99%

Effects of Lewis acid strength of monovalent coinage metals and zeolite frameworks on catalytic CO₂ cycloaddition with ethylene oxide: A DFT study

Sangthong

Sirijaraensre

2023

New J. Chem.

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Technological advances in the transformative utilization of CO2 to value-added products

Cited by 36 publications

References 221 publications

Chemical Looping Combustion: A Brief Overview

Chemical Looping Combustion: A Brief Overview

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

Effects of Lewis acid strength of monovalent coinage metals and zeolite frameworks on catalytic CO₂ cycloaddition with ethylene oxide: A DFT study

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Technological advances in the transformative utilization of CO2 to value-added products

Cited by 36 publications

References 221 publications

Chemical Looping Combustion: A Brief Overview

Chemical Looping Combustion: A Brief Overview

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

Effects of Lewis acid strength of monovalent coinage metals and zeolite frameworks on catalytic CO2 cycloaddition with ethylene oxide: A DFT study

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Effects of Lewis acid strength of monovalent coinage metals and zeolite frameworks on catalytic CO₂ cycloaddition with ethylene oxide: A DFT study