Applications of fly ash for CO2 capture, utilization, and storage

Dindi, Abdallah; Quang, Đặng Viết; Vega, Lourdes F.; Nashef, Enas; Abu-Zahra, Mohammad R.M.

doi:10.1016/j.jcou.2018.11.011

Cited by 282 publications

(112 citation statements)

References 162 publications

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“…For decades these wastes were a serious environmental problem because the degree of their economic use was unsatisfactory and a significant part was stored on landfills [15]. These landfills require large areas, and at the same time, they degrade the natural environment [16,17]. In 1997 the area of landfills where waste from energy industry was stored was 2370 hectares, 119 of which were reclaimed, in 2015 -8341.7 hectares, 59 of which were reclaimed, and in 2016 -8374.3 hectares, 27.4 of which were reclaimed [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

The influence of compaction and saturation on the compressibility of colliery waste

Kamińska¹,

Dzierwa

2019

THERM SCI

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Original scientific paper https://doi.org/10.2298/TSCI19S4345KUsing colliery waste to produce building materials, especially in earthworks to build different types of road and railway embankments, or to fill cavities and open-pit mines, requires us to determine the value of the settlement and the ability of fly ash to reduce its volume about its usability for mentioned purposes. Economic benefits and the need to protect the environment are the main reasons for using fly ash as secondary raw material. The purpose of this paper is to determine the effect of initial compaction and water conditions on the process and values of settlement as well as oedometric modulus of primary compression, decompression and secondary compression of fly ash. The tests were carried out in oedometers. The subject of the research was fly ash from Skawina Power Plant. Literature analysis covers the processes of waste production and management, types of waste depending on the grain size and composition, as well as the methods and ways of testing the compressibility of mineral and anthropogenic soils. The results of the tests allowed formulating conclusions on the influence of compaction and water conditions on the possibility of settling, consolidation and the values of compressibility moduli of the tested material. They also allowed determining the usability of the material for earth constructions and other purposes.

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Section: Introductionmentioning

confidence: 99%

The influence of compaction and saturation on the compressibility of colliery waste

Kamińska¹,

Dzierwa

2019

THERM SCI

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“…Related technologies that recycle coal ash were investigated. Fly ash can be applied as adsorbent, products, and storage in carbon capture, utilization, and storage (CCUS); the potential of CO 2 fixation by coal ash depends on the contents of metal oxide (e.g., CaO and MgO) [6]. In particular, partial substitution for ordinary Portland cement (OPC) by fly ash was widely deployed in real cases [7,8].…”

Section: Technological Feasibility For Carbon Mineralization Technolomentioning

confidence: 99%

“…In the combustion process, CO 2 and coal ash with gypsum are generated. The metal dioxide of coal ash can react with CO 2 , in carbonate form [6,16]. As a result, carbonates that have various industrial uses are produced from this waste.…”

Section: Technological Feasibility For Carbon Mineralization Technolomentioning

confidence: 99%

An Integrative Approach to International Technology Transfer for Recycling Vietnam Coal Ash with Consideration of the Technological, Legal, and Network Perspectives

et al. 2020

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The rapid economic growth of Vietnam has increased the amount of coal ash waste during electricity generation from coal-fired thermal power plants. This waste is being dumped even though the capacity of dumping sites will not be sufficient in the future. Accordingly, Korean technologies of recycling ashes, modifying them into a valuable product, and fixing carbon dioxide via carbon mineralization, can be an alternative to dumping. In this study, we aimed to investigate the feasibility of deploying carbon mineralization technology to Vietnam while considering technological, legal, and network perspectives. The material properties of coal ash and the applicability of coal ash recycling technology were briefly investigated in Vietnam. Legislation has progressed, focusing on recycling coal ash as a building material, with supportive measures on investment and international cooperation. Meanwhile, a bilateral network between Vietnam and the Republic of Korea at the institutional and governmental levels strengthened the implementation of practical technology cooperation. In conclusion, we considered various perspectives in terms of the technology transfer of recycling coal ash. This technology transfer model can contribute to enhancing the possibility of successful technology cooperation for solving the environmental problems of coal ash.

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“…This research has recently been tested on a pilot scale and resulted in a successful outcome [87]. In other studies, coal combustion fly-ash, an industrial waste that contains about 4.1 wt.% of lime (CaO), was used to sequester CO 2 by aqueous carbonation [88][89][90]. All in all, while in many industries these waste materials are available only in small quantities [48] which can be a barrier to commercial viable CO 2 fixation at the large-scale, they can be found in large quantities as by-products of many mining-related operations in Australia.…”

Section: Mineral Carbonation As a Route For Reducing Co 2 Emissionmentioning

confidence: 99%

Opportunities for Mineral Carbonation in Australia’s Mining Industry

et al. 2019

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Carbon capture, utilisation and storage (CCUS) via mineral carbonation is an effective method for long-term storage of carbon dioxide and combating climate change. Implemented at a large-scale, it provides a viable solution to harvesting and storing the modern crisis of GHGs emissions. To date, technological and economic barriers have inhibited broad-scale utilisation of mineral carbonation at industrial scales. This paper outlines the mineral carbonation process; discusses drivers and barriers of mineral carbonation deployment in Australian mining; and, finally, proposes a unique approach to commercially viable CCUS within the Australian mining industry by integrating mine waste management with mine site rehabilitation, and leveraging relationships with local coal-fired power station. This paper discusses using alkaline mine and coal-fired power station waste (fly ash, red mud, and ultramafic mine tailings, i.e., nickel, diamond, PGE (platinum group elements), and legacy asbestos mine tailings) as the feedstock for CCUS to produce environmentally benign materials, which can be used in mine reclamation. Geographical proximity of mining operations, mining waste storage facilities and coal-fired power stations in Australia are identified; and possible synergies between them are discussed. This paper demonstrates that large-scale alkaline waste production and mine site reclamation can become integrated to mechanise CCUS. Furthermore, financial liabilities associated with such waste management and site reclamation could overcome many of the current economic setbacks of retrofitting CCUS in the mining industry. An improved approach to commercially viable climate change mitigation strategies available to the mining industry is reviewed in this paper.

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Applications of fly ash for CO2 capture, utilization, and storage

Cited by 282 publications

References 162 publications

The influence of compaction and saturation on the compressibility of colliery waste

The influence of compaction and saturation on the compressibility of colliery waste

An Integrative Approach to International Technology Transfer for Recycling Vietnam Coal Ash with Consideration of the Technological, Legal, and Network Perspectives

Opportunities for Mineral Carbonation in Australia’s Mining Industry

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