Carbon capture and mineralization in Singapore: Preliminary environmental impacts and costs via LCA

Hsien H. Khoo; Paul N. Sharratt; Jie Bu; Tze Y. Yeo; Armando Borgna; James G. Highfield; Thomas G. Björklöf; Ron Zevenhoven

doi:10.1021/ie200592h

Carbon capture and mineralization in Singapore: Preliminary environmental impacts and costs via LCA

Hsien H. Khoo^*, Paul N. Sharratt, Jie Bu, Tze Y. Yeo, Armando Borgna, James G. Highfield, Thomas G. Björklöf, Ron Zevenhoven

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

The total energy and CO ₂ emissions of a mineral carbonation process are investigated using a life cycle assessment (LCA). The LCA investigation takes into account the energy and greenhouse gas emissions from mineral mining operations and shipment from Australia, the recovery of CO ₂ based on amine scrubbing technology (if required), and two possible options for mineral carbonation in Singapore where the final carbonate products have potential use in the construction industry and as land reclamation material. Four scenarios were investigated-the first two withCO ₂ recovery via amine scrubbing prior to mineralization and the last two with direct mineralization of CO ₂ from the NGCC flue gas. The most promising options turned out to be scenarios 3 and 4 - these cases result in 215 and 154 kg of CO ₂ avoided per 1 MWh, respectively. Scenario 1 results in 90 kg of CO ₂ avoided per 1 MWh. The life cycle costing results are 70.6-80.8 USD/tonne CO ₂ avoided for scenario 3 and 119.9-159.1 USD/tonne CO ₂ avoided for scenario 4.

Original language	English
Pages (from-to)	11350-11357
Number of pages	8
Journal	Industrial and Engineering Chemistry Research
Volume	50
Issue number	19
DOIs	https://doi.org/10.1021/ie200592h
Publication status	Published - 5 Oct 2011
MoE publication type	A1 Journal article-refereed

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title = "Carbon capture and mineralization in Singapore: Preliminary environmental impacts and costs via LCA",

abstract = "The total energy and CO 2 emissions of a mineral carbonation process are investigated using a life cycle assessment (LCA). The LCA investigation takes into account the energy and greenhouse gas emissions from mineral mining operations and shipment from Australia, the recovery of CO 2 based on amine scrubbing technology (if required), and two possible options for mineral carbonation in Singapore where the final carbonate products have potential use in the construction industry and as land reclamation material. Four scenarios were investigated-the first two withCO 2 recovery via amine scrubbing prior to mineralization and the last two with direct mineralization of CO 2 from the NGCC flue gas. The most promising options turned out to be scenarios 3 and 4 - these cases result in 215 and 154 kg of CO 2 avoided per 1 MWh, respectively. Scenario 1 results in 90 kg of CO 2 avoided per 1 MWh. The life cycle costing results are 70.6-80.8 USD/tonne CO 2 avoided for scenario 3 and 119.9-159.1 USD/tonne CO 2 avoided for scenario 4.",

author = "Khoo, {Hsien H.} and Sharratt, {Paul N.} and Jie Bu and Yeo, {Tze Y.} and Armando Borgna and Highfield, {James G.} and Bj{\"o}rkl{\"o}f, {Thomas G.} and Ron Zevenhoven",

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AU - Khoo, Hsien H.

AU - Sharratt, Paul N.

AU - Bu, Jie

AU - Yeo, Tze Y.

AU - Borgna, Armando

AU - Highfield, James G.

AU - Björklöf, Thomas G.

AU - Zevenhoven, Ron

PY - 2011/10/5

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N2 - The total energy and CO 2 emissions of a mineral carbonation process are investigated using a life cycle assessment (LCA). The LCA investigation takes into account the energy and greenhouse gas emissions from mineral mining operations and shipment from Australia, the recovery of CO 2 based on amine scrubbing technology (if required), and two possible options for mineral carbonation in Singapore where the final carbonate products have potential use in the construction industry and as land reclamation material. Four scenarios were investigated-the first two withCO 2 recovery via amine scrubbing prior to mineralization and the last two with direct mineralization of CO 2 from the NGCC flue gas. The most promising options turned out to be scenarios 3 and 4 - these cases result in 215 and 154 kg of CO 2 avoided per 1 MWh, respectively. Scenario 1 results in 90 kg of CO 2 avoided per 1 MWh. The life cycle costing results are 70.6-80.8 USD/tonne CO 2 avoided for scenario 3 and 119.9-159.1 USD/tonne CO 2 avoided for scenario 4.

AB - The total energy and CO 2 emissions of a mineral carbonation process are investigated using a life cycle assessment (LCA). The LCA investigation takes into account the energy and greenhouse gas emissions from mineral mining operations and shipment from Australia, the recovery of CO 2 based on amine scrubbing technology (if required), and two possible options for mineral carbonation in Singapore where the final carbonate products have potential use in the construction industry and as land reclamation material. Four scenarios were investigated-the first two withCO 2 recovery via amine scrubbing prior to mineralization and the last two with direct mineralization of CO 2 from the NGCC flue gas. The most promising options turned out to be scenarios 3 and 4 - these cases result in 215 and 154 kg of CO 2 avoided per 1 MWh, respectively. Scenario 1 results in 90 kg of CO 2 avoided per 1 MWh. The life cycle costing results are 70.6-80.8 USD/tonne CO 2 avoided for scenario 3 and 119.9-159.1 USD/tonne CO 2 avoided for scenario 4.

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Carbon capture and mineralization in Singapore: Preliminary environmental impacts and costs via LCA

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