Life cycle assessment of a CO2 mineralisation technology for carbon capture and utilisation in Singapore

Khoo, Zi-Yu; Ho, Eugene Hong Zhuang; Li, Yuqiong; Yeo, Zhiquan; Low, Jonathan Sze Choong; Bu, Jie; Chia, Leonard

doi:10.1016/j.jcou.2020.101378

Cited by 20 publications

(4 citation statements)

References 17 publications

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“…Environmental benefits for a CCU supply chain are also reported by Khoo et al [34], where carbon dioxide is captured from flue gas and converted into solid carbonates or sand, which can then be used for purposes such as land reclamation in Singapore. The results show that the carbon dioxide mineralization technology abates 115.78 kg CO2-eq per ton of CO 2 in input.…”

Section: Life Cycle Assessment Of Carbon Capture and Utilization Supp...mentioning

confidence: 70%

Life Cycle Assessment of Carbon Dioxide Supply Chains: State of the Art and Methodology Description

Leonzio

2023

Applied Sciences

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Due to the increase of carbon dioxide emissions, a target for their reduction has been defined in the Paris Agreement for 2030. This topic is extremely important, and urgent actions are required so that the attention of the scientific community is mainly focused on emission reduction. In this context, carbon supply chains have an important role because they can help in carbon dioxide mitigation. In fact, in these systems, carbon dioxide is captured to be stored or used to produce valuable products. However, carbon supply chains involve many energy consumptions during the operation (causing carbon dioxide emissions and resource depletion), and an analysis of the environmental impact of the system is required. Different green metrics exist but the most effective is the life cycle assessment. The methodology of the life cycle assessment is presented in this work, with particular considerations for its application to carbon supply chains. An overview of the research presented in the literature is also considered here, with suggestions for future analyses.

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Section: Life Cycle Assessment Of Carbon Capture and Utilization Supp...mentioning

confidence: 70%

Life Cycle Assessment of Carbon Dioxide Supply Chains: State of the Art and Methodology Description

Leonzio

2023

Applied Sciences

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“…Dimethyl carbonate Reduction of GWP by 4.3 times compared to the conventional route from phosgene (31 vs 132 kgCO2eq/kg dimethylcarbonate) Khoo et al (2021) Flue gas from a waste-toenergy plant Mineralization Reduction of GWP by 115.78 kgCO2eq per tonne of CO2 input Han and Lee (2013) Gas fired and coal fired power plants…”

Section: Mea Absorptionmentioning

confidence: 99%

Life cycle assessment of a carbon capture utilization and storage supply chain in Italy and Germany: Comparison between carbon dioxide storage and utilization systems

Leonzio

Bogle

Foscolo

2023

Sustainable Energy Technologies and Assessments

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“…48,50,54−57 Life cycle assessments (LCAs) of CO 2 mineralization have mostly focused on CO 2 capture and storage. 33,34,58 Only recently have LCA studies expanded the scope to utilization and shown benefits from substituting the conventional products, e.g., avoiding sand import for land reclamation 59 or reducing clinker usage in cement. 56,60 Our previous study assessed the potential of CO 2 mineralization for reducing GHG emissions.…”

Section: Introductionmentioning

confidence: 99%

“…CO 2 mineralization in cement is therefore currently being intensely investigated. Recent studies demonstrate the potential of CO 2 mineralization for the cement industry using a variety of feedstock ranging from recycled concrete, cement kiln dust, and natural minerals, to blast furnace slag. ,,− Life cycle assessments (LCAs) of CO 2 mineralization have mostly focused on CO 2 capture and storage. ,, Only recently have LCA studies expanded the scope to utilization and shown benefits from substituting the conventional products, e.g., avoiding sand import for land reclamation or reducing clinker usage in cement. , …”

Section: Introductionmentioning

confidence: 99%

From Unavoidable CO₂ Source to CO₂ Sink? A Cement Industry Based on CO₂ Mineralization

Ostovari

Müller

Skoček

et al. 2021

Environ. Sci. Technol.

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The cement industry emits 7% of the global anthropogenic greenhouse gas (GHG) emissions. Reducing the GHG emissions of the cement industry is challenging since cement production stoichiometrically generates CO 2 during calcination of limestone. In this work, we propose a pathway towards a carbonneutral cement industry using CO 2 mineralization. CO 2 mineralization converts CO 2 into a thermodynamically stable solid and byproducts that can potentially substitute cement. Hence, CO 2 mineralization could reduce the carbon footprint of the cement industry via two mechanisms: (1) capturing and storing CO 2 from the flue gas of the cement plant, and (2) reducing clinker usage by substituting cement. However, CO 2 mineralization also generates GHG emissions due to the energy required for overcoming the slow reaction kinetics. We, therefore, analyze the carbon footprint of the combined CO 2 mineralization and cement production based on life cycle assessment. Our results show that combined CO 2 mineralization and cement production using today's energy mix could reduce the carbon footprint of the cement industry by 44% or even up to 85% considering the theoretical potential. Lowcarbon energy or higher blending of mineralization products in cement could enable production of carbon-neutral blended cement. With direct air capture, the blended cement could even become carbon-negative. Thus, our results suggest that developing processes and products for combined CO 2 mineralization and cement production could transform the cement industry from an unavoidable CO 2 source to a CO 2 sink.

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Life cycle assessment of a CO2 mineralisation technology for carbon capture and utilisation in Singapore

Cited by 20 publications

References 17 publications

Life Cycle Assessment of Carbon Dioxide Supply Chains: State of the Art and Methodology Description

Life Cycle Assessment of Carbon Dioxide Supply Chains: State of the Art and Methodology Description

Life cycle assessment of a carbon capture utilization and storage supply chain in Italy and Germany: Comparison between carbon dioxide storage and utilization systems

From Unavoidable CO₂ Source to CO₂ Sink? A Cement Industry Based on CO₂ Mineralization

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Life cycle assessment of a CO2 mineralisation technology for carbon capture and utilisation in Singapore

Cited by 20 publications

References 17 publications

Life Cycle Assessment of Carbon Dioxide Supply Chains: State of the Art and Methodology Description

Life Cycle Assessment of Carbon Dioxide Supply Chains: State of the Art and Methodology Description

Life cycle assessment of a carbon capture utilization and storage supply chain in Italy and Germany: Comparison between carbon dioxide storage and utilization systems

From Unavoidable CO2 Source to CO2 Sink? A Cement Industry Based on CO2 Mineralization

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From Unavoidable CO₂ Source to CO₂ Sink? A Cement Industry Based on CO₂ Mineralization