Ash formation characteristics of two Indonesian coals and the change of ash properties with particle size

Ke, Xiwei; Li, Dong Fang; Zhang, Man; Jeon, Chung-Hwan; Cai, Runxia; Cai, Jun; Lyu, Junfu; Yang, Hairui

doi:10.1016/j.fuproc.2018.12.020

Cited by 19 publications

(7 citation statements)

References 26 publications

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“…A large amount of coal in Bangladesh is sourced from India and China. However, Indonesia might be a suitable country to import coal from considering the shorter distance and huge reserves of coal (Ke et al, 2019). Indonesian coal is moderately low cost compared with other globally exchanged coal.…”

Section: Energy Sectormentioning

confidence: 99%

A snapshot of coal‐fired power generation in Bangladesh: A demand–supply outlook

Islam¹,

Ahmed²,

Mondal

et al. 2021

Natural Resources Forum

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Despite the numerous exemplary efforts taking place to develop sustainable systems of power generation globally, coal will remain an essential and significant part of Bangladeshʼs energy generation. The Government of Bangladesh needs to provide a more reliable and transparent power market for citizens to meet Bangladeshʼs rising energy demand. Consequently, various coal‐based mega projects were undertaken by the Bangladesh government to ensure an affordable and reliable power supply. Half of the targeted electricity was designated to be produced from imported coal. Hence, the development strategy or the reformation of policy in the energy sector may contribute to the current shortcomings in policy approach including inadequate energy infrastructure, regulation and co‐ordination issues. This review focuses on the increasing demand for coal, supply issues, socio‐environmental requirements and significant coal import to encourage realistic advancement of the energy sector in Bangladesh. Moreover, forecasting the requirement of coal for mega power projects from 2021 to 2041 was highlighted. The water resource supply for coal‐based power plants and approaches for reducing CO2 and other emissions were also addressed. Finally, initiatives for fulfilling Sustainable Development Goals in the Bangladesh energy sector were also discussed in this review.

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Section: Energy Sectormentioning

confidence: 99%

A snapshot of coal‐fired power generation in Bangladesh: A demand–supply outlook

Islam¹,

Ahmed²,

Mondal

et al. 2021

Natural Resources Forum

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“…The particle size and distribution of elements are uneven due to the different formation conditions of coal ash. Ke et al 15 corroborated that the larger CFB ash particles were composed of some hard materials such as quartz, mullite, and glass particles with different sizes have different chemical composition and mineral matter. Li et al 16 investigated the distribution characteristics of heavy metals in different sizes of FA from a sewage sludge circulating fluidized bed incinerator and corroborated that the heavy metal contents of small-sized FA were higher than those of large-sized FA.…”

Section: Introductionmentioning

confidence: 99%

Distribution Characteristics of Valuable Elements, Al, Li, and Ga, and Rare Earth Elements in Feed Coal, Fly Ash, and Bottom Ash from a 300 MW Circulating Fluidized Bed Boiler

Shan

Cheng

2019

ACS Omega

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Feed coal, fly ash (FA), and bottom ash (BA) were collected from a 300 MW circulating fluidized bed boiler. A mechanical screen classifier was used to separate and obtain particles with different sizes. The distribution of valuable elements, including aluminum (Al), lithium (Li), and gallium (Ga), and rare earth elements (REE) in the samples was investigated. Results indicate that the contents of SiO 2 and Al 2 O 3 in sized ash particles decreased as the particle size decreased; meanwhile, the contents of CaO, SO 3 , and Fe 2 O 3 apparently increased. The sulfur-fixing product anhydrite tended to be distributed in the fine ash particles. The valuable elements were more enriched in FA than in BA. The Li, Ga, and REE were evenly distributed in FA particles with different sizes. Separating ash particles with a superhigh concentration of these rare elements was difficult using the mechanical screen, but a part of the anhydrite or CaO in circulating fluidized bed ash could be removed easily. The Li and REE in the feed coal were highly associated with quartz, kaolinite, and other fractions containing SiO 2 and Al 2 O 3 . No definitive relationship between the Ga concentration and Al 2 O 3 content in the feed coal and ash samples was observed.

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“…The size distribution of feeding ash particles is set as the primary ash particle size distribution (PAPSD), which is an intrinsic property of fuel and can be obtained by the static combustion and cold sieving (SCCS) method (Yang et al, 2004;Ke et al, 2019). The correlation between PAPSD and feeding fuel size distribution can be seen in the previous publication (Yang et al, 2005).…”

Section: Ash and Lime Particles Balancementioning

confidence: 99%

Modeling of the axial distributions of volatile species in a circulating fluidized bed boiler

Engblom

Zhang

et al. 2021

Chemical Engineering Science

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Ash formation characteristics of two Indonesian coals and the change of ash properties with particle size

Cited by 19 publications

References 26 publications

A snapshot of coal‐fired power generation in Bangladesh: A demand–supply outlook

A snapshot of coal‐fired power generation in Bangladesh: A demand–supply outlook

Distribution Characteristics of Valuable Elements, Al, Li, and Ga, and Rare Earth Elements in Feed Coal, Fly Ash, and Bottom Ash from a 300 MW Circulating Fluidized Bed Boiler

Modeling of the axial distributions of volatile species in a circulating fluidized bed boiler

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