Mineral Sequestration of Carbon Dioxide in Circulating Fluidized Bed Combustion Boiler Bottom Ash

Kim, Hee-Jeong; Lee, Haeng‐Ki

doi:10.3390/min7120237

Cited by 8 publications

(3 citation statements)

References 33 publications

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“…However, based on a laboratory study, Montes-Hernandez et al [53] reported maximum CO 2 sequestration capacity of 26 kg for one tonne of fly ash. In addition, based on another laboratory study, Kim and Lee [81] observed maximum CO 2 sequestration capacity of 195 kg for one tonne of bottom ash. If the 6.8 and 1.7 million tonnes of fly and bottom ashes, respectively, being produced annually in Malaysia [73] would be used for the first 10 cm of land associated with the country's future developments (e.g., using lands associated with construction of highway [14,82]), more than 9000 ha of land could be designed for inorganic CO 2 sequestration, and 500,000 tonnes of CO 2 could be captured.…”

Section: Malaysia's Capacity For Using Soil Mineral Carbonationmentioning

confidence: 97%

Sequestering Atmospheric CO2 Inorganically: A Solution for Malaysia’s CO2 Emission

et al. 2018

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Malaysia is anticipating an increase of 68.86% in CO2 emission in 2020, compared with the 2000 baseline, reaching 285.73 million tonnes. A major contributor to Malaysia’s CO2 emissions is coal-fired electricity power plants, responsible for 43.4% of the overall emissions. Malaysia’s forest soil offers organic sequestration of 15 tonnes of CO2 ha−1·year−1. Unlike organic CO2 sequestration in soil, inorganic sequestration of CO2 through mineral carbonation, once formed, is considered as a permanent sink. Inorganic CO2 sequestration in Malaysia has not been extensively studied, and the country’s potential for using the technique for atmospheric CO2 removal is undefined. In addition, Malaysia produces a significant amount of solid waste annually and, of that, demolition concrete waste, basalt quarry fine, and fly and bottom ashes are calcium-rich materials suitable for inorganic CO2 sequestration. This project introduces a potential solution for sequestering atmospheric CO2 inorganically for Malaysia. If lands associated to future developments in Malaysia are designed for inorganic CO2 sequestration using demolition concrete waste, basalt quarry fine, and fly and bottom ashes, 597,465 tonnes of CO2 can be captured annually adding a potential annual economic benefit of €4,700,000.

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Section: Malaysia's Capacity For Using Soil Mineral Carbonationmentioning

confidence: 97%

Sequestering Atmospheric CO2 Inorganically: A Solution for Malaysia’s CO2 Emission

et al. 2018

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“…Often used minerals include olivine ((Mg,Fe)SiO 4 ) [28], forsterite (Mg 2 SiO 4 ) [29], serpentine (Mg 3 Si 2 O 5 (OH) 4 ) [30], and wollastonite (CaSiO 3 ) [31]. Several industrial residues (such as combustion/incineration ashes, mining tailings, and metallurgical slags) also contain alkaline silicates, often more complex, such as chrysotile (Mg 3 (Si 2 O 5 )(OH) 4 ) [32] and brownmillerite (Ca 2 (Al,Fe) 2 O 5 ) [33] and, at times, amorphous (lacking crystal structure). Calcium-based minerals are usually more reactive than magnesium-based minerals, basically, because the Ca atom is larger than the Mg atom, and consequently the valence electron is less tightly bound to the Ca atom.…”

Section: Experimental Investigation Part A: Background Of Mineral Carmentioning

confidence: 99%

Mineral Carbonation as an Educational Investigation of Green Chemical Engineering Design

Fantucci

Sidhu

2019

Sustainability

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Engaging students in the experimental design of “green” technology is a challenge in Chemical Engineering undergraduate programs. This concept paper demonstrates an educational methodology to investigate accelerated mineral carbonation, which is a promising technology related to mitigation of climate change by sequestering carbon dioxide (CO2) from industrial sources as stable solid carbonates. An experimental investigation is conceived, whereby students test the effect of two process parameters (CO2 pressure and mixing rate) on the extent of carbonation reaction. The carbonation reaction has been performed using a mineral called wollastonite (CaSiO3). The experimental study and laboratory report cover principles of reaction kinetics and mass transfer, while illustrating the steps to develop and investigate a green process technology. The results from the experimental investigation, which is carried out by multiple teams of students, are then pooled and used to guide a subsequent design project. Students would conceive a flowsheet, size equipment, and estimate the energy demand and net CO2 sequestration efficiency of a full-scale implementation of the mineral carbonation technology. This educational investigation aims to help undergraduate students to acquire deeper experiential learning and greater awareness of future green technologies by applying fundamental engineering principles into an engaging experimental and design exercise.

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“…Climate change threat is promoting the development of new technologies on greenhouse gas (GHG) emissions. Given that, carbon dioxide utilization is diverse [1,2] and new technologies must be promoted to be implemented successfully. New composite materials designed to be carbonated has a great potential for CO 2 uptake, for instance, by using new additions, providing a denser final material [3].…”

Section: Introductionmentioning

confidence: 99%

Carbon Dioxide Absorption by Blast-Furnace Slag Mortars in Function of the Curing Intensity

2019

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Climate change is one of the most important issues affecting the future of the planet. Then, a lot of resources are being used to actively work on climate change issues and greenhouse gas reduction. Greenhouse gas (GHG) emissions are monitored by each country and reported yearly to the United Nations Framework Convention on Climate Change (UNFCCC). The Intergovernmental Panel on Climate Change (IPCC) published the document entitled “2006 IPCC Guidelines for National Greenhouse Gas Inventories” to provide the calculation rules and the way to inform the UNFCCC of the national GHG emissions. Currently, this document does not give a procedure to calculate the net carbon dioxide emissions to the atmosphere due to the Portland cement clinker production. The purpose of this paper is to get reliable relationships to better calculate the CO2 uptake by ground granulated blast-furnace slag (GGBFS) mortars. The application of this material cured under controlled conditions could help minimize environmental impact. Carbonation coefficient versus 28-day compressive strength relationship of mortars elaborated with GGBFS and cured underwater for 0, 1, 3, 7, 14, or 28 days were obtained. The main finding is the extreme sensitivity of the GGBFS mortars to the curing intensity and, therefore, they can be used cured under controlled conditions to minimize carbon footprints.

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Mineral Sequestration of Carbon Dioxide in Circulating Fluidized Bed Combustion Boiler Bottom Ash

Cited by 8 publications

References 33 publications

Sequestering Atmospheric CO2 Inorganically: A Solution for Malaysia’s CO2 Emission

Sequestering Atmospheric CO2 Inorganically: A Solution for Malaysia’s CO2 Emission

Mineral Carbonation as an Educational Investigation of Green Chemical Engineering Design

Carbon Dioxide Absorption by Blast-Furnace Slag Mortars in Function of the Curing Intensity

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