Environmental impacts of a chemical looping combustion power plant

Thorne, Rebecca Jayne; Bouman, Evert A.; Sundseth, Kyrre; Sanchez, Maria Asuncion Aranda; Czakiert, Tomasz; Pacyna, Józef M.; Pacyna, Elisabeth G.; Krauz, M; Celińska, Agnieszka

doi:10.1016/j.ijggc.2019.04.011

Cited by 19 publications

(11 citation statements)

References 33 publications

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“…S2 in the Supporting Information). Similar results are found by [23]. The amount of OC used up by the CLC reactor includes an initial loading plus additional amounts to make up for the loss of the carrier due to elutriation (~0.5% of the OC mass flow rate within the CLC unit); the OC lost by elutriation is assumed to be captured by filters and treated as hazardous waste, which, according to Ecoinvent, entails incineration and landfilling.…”

Section: Figure -Comparison Between Normalised Environmental Impacts Of the Proposed Process Layout And The Reference Systemsupporting

confidence: 59%

“…Data on the construction phase is obtained from Ecoinvent for the CLC reactor (note that we assume that construction of the CLC reactor for electricity production is equivalent to that of a coal power plant), on Ecoinvent and [18] for the HP-PEM cell, and on [21,22] for the methanation reactor using a nickel catalyst. The oxygen carrier is assumed to consists of 50% copper oxide and 50% zirconia; data on its production is on a laboratory scale and is based on [23]. Finally, life-cycle inventory data for the remaining activities in the Background system, and for the conventional pathway to methane production and electricity from the Italian grid mix (which primarily comprises of 28% natural gas, 15% coal, 22% hydro, 6% wind and 17% imported from other countries) are obtained from the Ecoinvent database.…”

Section: Life Cycle Assessmentmentioning

confidence: 99%

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Life cycle assessment and feasibility analysis of a combined chemical looping combustion and power-to-methane system for CO2 capture and utilization

Bareschino

Mancusi

Urciuolo

et al. 2020

Renewable and Sustainable Energy Reviews

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The ability to store effectively excess of electrical energy from peaks of production is key to the development of renewable energies. Power-To-Gas, and specifically Power-To-Methane represents one of the most promising option. This works presents an innovative process layout that integrates Chemical Looping Combustion of solid fuels and a Power-to-Methane system. The core of the proposed layout is a multiple interconnected fluidized bed system (MFB) equipped with a two-stage fuel reactor (t-FR). Performances of the system were evaluated by considering a coal as fuel and CuO supported on zirconia as oxygen carrier. A kinetic scheme comprising both heterogeneous and homogeneous reactions occurring in the MFB was considered. The methanation unit was modelled developing a thermodynamic calculation method based on minimization of the free Gibbs energy. The performance of the system was evaluated by considering that the CO/CO2 stream coming from the t-FR reacts over Ni supported on alumina catalyst with a pure H2 stream generated by an array of electrolysis cells. The number of cells to be stacked in the array was evaluated by considering that a constant H2 production able to convert the whole CO/CO2 stream produced by the CLC process should be attained. The environmental performance of the proposed process was quantified using the Life Cycle Assessment (LCA) methodology. The analysis shows i) that the majority originate from the production and disposal of the oxygen carrier used in the t-FR, and ii) that reusing part of the oxygen produced by the electrolysis cells improves significantly the environmental performance of the proposed process.

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Section: Figure -Comparison Between Normalised Environmental Impacts Of the Proposed Process Layout And The Reference Systemsupporting

confidence: 59%

Section: Life Cycle Assessmentmentioning

confidence: 99%

Life cycle assessment and feasibility analysis of a combined chemical looping combustion and power-to-methane system for CO2 capture and utilization

Bareschino

Mancusi

Urciuolo

et al. 2020

Renewable and Sustainable Energy Reviews

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“…Often sorbent costs had to be estimated based on values published decades ago. , Recently, many studies have utilized industrial waste products rich in species that are typically used to stabilize the CaO in a sorbent, e.g., Mg, Al, or Si, ,− or bioderived materials ,− to reduce the costs of sorbent production; a recent overview on sorbents based on waste products, covering also low-temperature adsorbents, has been given by Wang et al . Questions related to the recycling and reuse of spent sorbents or their processing (e.g., the separation of the inert phases and the Ca phase) have not been addressed in detail and thus offer potential for research (as, for example, in refs and in the context of chemical looping).…”

Section: Remaining Challenges and Future Direction For Solid Sorbents...mentioning

confidence: 99%

CO₂ Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

et al. 2021

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Carbon dioxide capture and mitigation form a key part of the technological response to combat climate change and reduce CO2 emissions. Solid materials capable of reversibly absorbing CO2 have been the focus of intense research for the past two decades, with promising stability and low energy costs to implement and operate compared to the more widely used liquid amines. In this review, we explore the fundamental aspects underpinning solid CO2 sorbents based on alkali and alkaline earth metal oxides operating at medium to high temperature: how their structure, chemical composition, and morphology impact their performance and long-term use. Various optimization strategies are outlined to improve upon the most promising materials, and we combine recent advances across disparate scientific disciplines, including materials discovery, synthesis, and in situ characterization, to present a coherent understanding of the mechanisms of CO2 absorption both at surfaces and within solid materials.

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“…the separation of the inert phases and the Ca phase) have not been addressed and thus offer potential for research (as e.g. in [630], [631] in the context of chemical looping).…”

Section: Enabling Co2 Capture On An Industrial Scalementioning

confidence: 99%

CO2 capture using solid sorbents: Fundamental aspects, mechanistic insights and recent advances

Dunstan¹,

Donat²,

Bork³

et al. 2021

Preprint

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Carbon dioxide capture and mitigation forms a key part of the technological response to combat climate change and reduce CO2 emissions. Solid materials capable of reversibly absorbing CO2 have been the focus of intense research for the past two decades, promising stability and low energy costs to implement and operate compared to the more widely used liquid amines. In this Review, we explore the fundamental aspects underpinning solid CO2 sorbents based on alkali and alkaline earth metal oxides operating at mid- to high temperature: how their structure, chemical composition and morphology impact their performance and long-term use. Various optimization strategies are outlined to improve upon the most promising materials, and we combine recent advances across disparate scientific disciplines including materials discovery, synthesis, and in situ characterization to present a coherent understanding of the mechanisms of CO2 absorption both at surfaces and within solid materials.

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Environmental impacts of a chemical looping combustion power plant

Cited by 19 publications

References 33 publications

Life cycle assessment and feasibility analysis of a combined chemical looping combustion and power-to-methane system for CO2 capture and utilization

Life cycle assessment and feasibility analysis of a combined chemical looping combustion and power-to-methane system for CO2 capture and utilization

CO₂ Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

CO2 capture using solid sorbents: Fundamental aspects, mechanistic insights and recent advances

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Environmental impacts of a chemical looping combustion power plant

Cited by 19 publications

References 33 publications

Life cycle assessment and feasibility analysis of a combined chemical looping combustion and power-to-methane system for CO2 capture and utilization

Life cycle assessment and feasibility analysis of a combined chemical looping combustion and power-to-methane system for CO2 capture and utilization

CO2 Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

CO2 capture using solid sorbents: Fundamental aspects, mechanistic insights and recent advances

Contact Info

Product

Resources

About

CO₂ Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances