Global emission hotspots of coal power generation

Oberschelp, Christopher; Pfister, Stephan; Raptis, Catherine; Hellweg, Stefanie

doi:10.1038/s41893-019-0221-6

Cited by 200 publications

(131 citation statements)

References 31 publications

(27 reference statements)

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“…According to analysts, coal currently accounts for 38 -41% of the global electricity generation (Zhang et al 2017;Dai and Finkelman 2018). Consequently, coal-fired electricity production accounts for a major share of the global energy mix (BP 2018), particularly in industrialised nations such as Germany, Russia, Poland, UK, China and Australia (Wierzbowski et al 2017;Oberschelp et al 2019). Over the years, the growing demand for a cheap and reliable supply of electricity has also stimulated significant investments in coal-fired power in developing countries such as India, China, and South Africa (Hancox 2016;Tang et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Physicochemical, Mineralogy, and Thermo-Kinetic Characterisation of Newly Discovered Nigerian Coals under Pyrolysis and Combustion Conditions

Nyakuma

Jauro

Akinyemi

et al. 2020

Preprint

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In this study, the physicochemical, microstructural, mineralogical, thermal, and kinetic properties of three (3) newly discovered coals from Akunza (AKZ), Ome (OME), and Shiga (SHG) in Nigeria were examined for potential energy recovery. Physicochemical analysis revealed high combustible but low levels of polluting elements. The higher heating values (HHV) ranged from 18.65 MJ/kg (AKZ) to 26.59 MJ/kg (SHG). Microstructure and mineralogical analyses revealed particles with a rough texture, surfaces, and glassy lustre, which could be ascribed to metals, quartz, and kaolinite minerals. The major elements (C, O, Si, and Al), along with minor elements (Ca, Cu, Fe, K, Mg, S, and Ti) detected are associated with clays, salts, or the porphyrin constituents of coal. Thermal analysis showed mass loss (M L ) ranges from 30.51% – 87.57% and residual mass (R M ) from 12.44% – 69.49% under combustion (oxidative) and pyrolysis (non-oxidative) TGA conditions due to thermal degradation of organic matter, vitrinite, inertinite and liptinite macerals. Kinetic analysis revealed that the coal samples are highly reactive under the non-isothermal oxidative and non-oxidative conditions based on the Coats-Redfern Model. The activation energy ( E a ) ranged from 23.81 kJ/mol – 89.56 kJ/mol whereas the pre-exponential factor ( k o ) ranged from 6.77×10 -04 min -1 – 1.72×10 03 min -1 under pyrolysis and combustion conditions. In conclusion, the coals are practical feedstocks for either industrial applications or energy recovery.

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Section: Introductionmentioning

confidence: 99%

Physicochemical, Mineralogy, and Thermo-Kinetic Characterisation of Newly Discovered Nigerian Coals under Pyrolysis and Combustion Conditions

Nyakuma

Jauro

Akinyemi

et al. 2020

Preprint

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“…Sulfur dioxide (SO2), as major air pollutant, released from coal-fired power plants, oil refining and gas processing, and smelting is not only a great threat to human health, but also regarded as one of major contributor for acid rain and haze formation (Mclinden et al, 2016;Pi et al, 2020;Oberschelp et al, 2019). Although global sulfur emissions have been in decline over many decades, more than 100 million tons of SO2 are still emitted globally every year (Aas et al, 2019).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Comparative Study of the Effects of Various Activation Methods on the Desulfurization Performance of Petroleum Coke

Zhu

Yao

Wang

2021

Aerosol Air Qual. Res.

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Petroleum coke, an economical carbonaceous material, has great potential application as activated carbon materials for the removal of SO2. In this study, six common activation methods, including hydrothermal, high temperature, acid, alkali, H2O2 and Cu 2+ activation were used to prepare activated petroleum coke. Their desulfurization performance was evaluated by investigating the dynamic SO2 adsorption along with various relevant factors. The results demonstrated that the high-temperature activation could adjust the structure and chemical properties of petroleum coke, and the initial desulfurization efficiency of the obtained sample reach 76.4% with a surface area of 59.0 m 2 g-1. The specific surface area of HNO3-PC is up to 247.7 m 2 g-1 , as a consequence of exhibiting an obviously increased desulfurization performance with the SO2 removal rate above 82%. The sample activated with KOH/coke ratio of 4:1 presented the optimal desulfurization performance with the SO2 removal rate of 96.3% under the optimal conditions. Further comparative investigation on the physicochemical property properties revealed that both optimized texture structure and increased amount of active sites of activated petroleum coke were responsible for the high desulfurization performance. The obtained results demonstrated that activated petroleum coke as a unique carbonaceous material with several favorable properties could distinctly be a promising sorbent for acidic SO2 in industrial flue gas desulfurization.

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“…No âmbito mundial, apesar dos graves impactos sobre o meio ambiente, o carvão ainda é uma importante fonte de energia (Oberschelp et al, 2019). As principais razões para isso são: a) abundância Utilização do resíduo resultante da combustão de combustão de carvão mineral em usinas termelétricas na produção de novos materiais: uma análise a partir de artigos científicos e de patentes ____________________________________________________________________________________ Revista de Gestão Social e Ambiental -RGSA, São Paulo, v. 13, n. 1, p. 76-93, jan./abr.…”

Section: Gestão Das Cinzas De Carvão Como Resíduo Industrialunclassified

Utilização Do Resíduo Resultante Da Combustão De Carvão Mineral Em Usinas Termelétricas Na Produção De Novos Materiais: Uma Análise a Partir De Artigos Científicos E De Patentes

Kniess

Costa

Quoniam

et al. 2019

RGSA

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O objetivo geral desta pesquisa foi mapear as aplicações descritoras da utilização do resíduo resultante da combustão do carvão mineral para a geração de energia, cinzas de carvão mineral, na produção de materiais vítreos e cerâmicos. A pesquisa foi exploratória e quantitativa, cujo método foi o bibliométrico. As bases científicas internacionais de artigos consultadas foram: Web Of Science (WOS), Scopus (SC) e Science Direct (SD). No mapeamento e exploração dos artigos, utilizou-se as ferramentas Cite Space II, Carrot2 e Paper Machines a partir da técnica de Heat Mapping. Já a base de patentes utilizada foi a Espacenet e a ferramenta computacional de extração e tratamento das patentes foi o Paten2net, um software de código aberto. Sobre os resultados, foram mapeados nas bases internacionais, de 2000 a 2014, 174 artigos que continham os termos “bottom ash” e “glass” ou “ceramic” e 657 documentos de patentes no período de 1951 a 2015, incluindo pedidos e concessões. De forma específica, os resultados possibilitaram a sistematização de informações esclarecedoras do estado da arte da utilização do resíduo cinzas de carvão na produção de materiais vítreos e cerâmicos, em consonância com Política Nacional de Resíduos Sólidos e com vistas a possibilidades de inovações sustentáveis. O processo de mapeamento, extração e análise de informações de bases de artigos e patentes, utilizado neste estudo, também pode ser replicado em estudos futuros de diferentes áreas do conhecimento.

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Global emission hotspots of coal power generation

Abstract: This document represents the final draft ('post-print') of a manuscript that was submitted to Nature Sustainability on

Cited by 200 publications

References 31 publications

Physicochemical, Mineralogy, and Thermo-Kinetic Characterisation of Newly Discovered Nigerian Coals under Pyrolysis and Combustion Conditions

Physicochemical, Mineralogy, and Thermo-Kinetic Characterisation of Newly Discovered Nigerian Coals under Pyrolysis and Combustion Conditions

Comparative Study of the Effects of Various Activation Methods on the Desulfurization Performance of Petroleum Coke

Utilização Do Resíduo Resultante Da Combustão De Carvão Mineral Em Usinas Termelétricas Na Produção De Novos Materiais: Uma Análise a Partir De Artigos Científicos E De Patentes

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