Impact of Alkalis and Chlorides from Sugarcane Agriculture Residues on High Temperature Corrosion: A Review

Lariot-Sánchez, Carlos; Rivas-Gutierrez, A.; Rodríguez-Machín, Lizet; Rubio-González, A.; Iturria-Quintero, P. J.

doi:10.1007/s11085-022-10102-w

Cited by 6 publications

(5 citation statements)

References 53 publications

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“…Currently, the most commonly used additive is sulfur-containing compounds. Taking liquid catalysts containing ammonium sulfate as an example, the liquid ammonium sulfate reacts with KCl in the flue gas to generate stable potassium sulfate, reducing the chlorine content in the flue gas and achieving the effect of mitigating corrosion [62]. Wang et al simulated the ash melting characteristics after the combustion of coal with high alkali metal and alkaline earth metal contents [63].…”

Section: Anticorrosion Technologymentioning

confidence: 99%

New Problems of Boiler Corrosion after Coupling Combustion of Coal and Biomass and Anti-Corrosion Technologies

Wang,

Ma,

Zhao

et al. 2024

JRM

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This study explores the corrosion issues arising from the coupled combustion of coal and biomass and proposes potential solutions. Biomass, as a renewable energy source, offers advantages in energy-saving and carbon reduction. However, the corrosive effects of alkali metal compounds, sulfur (S) and chlorine (Cl) elements in the ash after combustion cannot be underestimated due to the high volatile content of biomass fuels. We investigate the corrosion mechanisms, as well as the transfer of Cl and alkali metal elements during this process. Comparative corrosion analyses are conducted among coal-fired boilers, pure biomass boilers and boilers with coupled combustion. Various biomass types in co-firing are studied to understand different corrosion outcomes. The main factors influencing corrosion include the physicochemical properties of biomass feedstock, furnace temperature and heating surface materials, with the chemical composition and ash content of biomass playing a dominant role. Currently, the methods used for anti-corrosion include water washing pretreatment of biomass feedstock, application of novel alloys and coatings and the development of additives to inhibit fouling, ash deposition and corrosion. Efficient inhibitors are economical and easy to produce. Additionally, biomass can be converted into biomass gasification gas, although challenges related to tar still need to be addressed.

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Section: Anticorrosion Technologymentioning

confidence: 99%

New Problems of Boiler Corrosion after Coupling Combustion of Coal and Biomass and Anti-Corrosion Technologies

Wang,

Ma,

Zhao

et al. 2024

JRM

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“…The Cl values for C75-EPL25 and C75-EBT25 are 0.020% and 0.021%, which are rather high when compared with coal at 0.005%. The presence of high Cl in both samples is thought to be one of the causes of the probe's surface condition, which still has slag and will trigger corrosion attacks [20]. Furthermore, both samples have high alkaline values, indicating that chlorine can increase the volatility of alkalis (K) in the gas phase, such as KCl.…”

Section: Probe After Ash Collectedmentioning

confidence: 99%

“…Furthermore, both samples have high alkaline values, indicating that chlorine can increase the volatility of alkalis (K) in the gas phase, such as KCl. At operating temperatures, both phases can produce deposits that condense on the pipe surface to form alkali sulfate and chloride [21].…”

Section: Probe After Ash Collectedmentioning

confidence: 99%

Preliminary Study of Slagging Fouling and Corrosion Coal Co-Firing with Biomass and Synthetic Waste in Drop Tube Furnace

Karuana¹,

Nainggolan²,

Ruhiyat³

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Synthetic waste may be used as biomass fuel in a coal-fired power plant (CFPP) or as part of a coal mixture via co-firing. Differences in characteristics can cause problems during combustion, especially in plastic waste containing high alkali and chlorine content. The purpose of this research is to analyze the features of coal combustion with biomass and synthetic waste mixture to assess the effects of combustion. Combustion is conducted in a drop tube furnace (DTF) by analyzing the possibility of slagging, fouling and corrosion of the ash produced from each fuel. From the results of burning coal, no ashes stuck, only a trace of dust, in contrast to the results of burning coal with a mixture of 25% biomass and synthetic waste which produces a dark colour and has a tendency to stick to the probe. The change in the texture of the probe surface indicates that burning coal with a 25% mixture of biomass and synthetic waste is an unsafe composition for slagging, fouling, and corrosion.

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“…Sistemas de cogeração operando com parâmetros de vapor mais elevados (acima de 100 bar/530ºC) são encontrados no exterior e analisados nos casos 4 e 5. Apesar de ser mais eficiente, o uso de parâmetros de vapor elevados não é comum, pois o risco de problemas de corrosão em caldeiras de bagaço aumenta com a temperatura de superaquecimento do vapor [133], [134]. Demais dados de entrada, utilizados para a modelagem do sistema de referência, são listados na seção 4.1.1, tais como a quantidade de cana processada na safra (4,7 milhões TC/safra), consumo de vapor de processo (400kgvapor/TC) e PCI do bagaço de cana (6,73 MJ/kg).…”

Section: 11sistema De Cogeração De Uma Usina De Cana-de-açúcarunclassified

“…As baixas eficiências, por exemplo, para caldeiras operando a 22 bar confirmam o desperdício, sob o ponto de vista energético e exergético, de se utilizar estas caldeiras no setor sucroalcooleiro brasileiro. Embora haja um aumento na eficiência elétrica da planta, os custos e riscos de corrosão na caldeira podem aumentar com parâmetros de vapor vivo mais altos [133]. Esta é uma das razões pelas quais as modernas usinas de cana-de-açúcar ainda utilizam caldeiras de 68 bar e temperaturas de vapor superaquecido na faixa de 480ºC a 520ºC [9],…”

Section: 21desempenho Dos Sistemas De Cogeraçãounclassified

Análise Técnica, Econômica E Ambiental De Usinas Termelétricas Alimentadas Por Biomassa Residual Operando Com Ciclos Combinados Híbridos

ANDRADE FURTADO

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Aos meus familiares e amigos pelo apoio nestes anos de trabalho.Aos meus orientadores Prof. Florian Pradelle e José Alberto dos Reis Parise por me orientarem com firmeza e seriedade durante meu programa de doutorado na PUC-Rio. Um agradecimento especial ao meu coorientador Dr.Sergio Vieira Guerreiro Ribeiro, por ter me orientado com muita sabedoria, permitindo eu dar mais este passo na minha carreira profissional.

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Impact of Alkalis and Chlorides from Sugarcane Agriculture Residues on High Temperature Corrosion: A Review

Cited by 6 publications

References 53 publications

New Problems of Boiler Corrosion after Coupling Combustion of Coal and Biomass and Anti-Corrosion Technologies

New Problems of Boiler Corrosion after Coupling Combustion of Coal and Biomass and Anti-Corrosion Technologies

Preliminary Study of Slagging Fouling and Corrosion Coal Co-Firing with Biomass and Synthetic Waste in Drop Tube Furnace

Análise Técnica, Econômica E Ambiental De Usinas Termelétricas Alimentadas Por Biomassa Residual Operando Com Ciclos Combinados Híbridos

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