The application of FAMM (Fluorescence Alteration of Multiple Macerals) analyses for evaluating rank of Paraná Basin coals, Brazil

Kalkreuth, W.; Sherwood, Neil; Cioccari, Giovani Matte; Silva, Z Corrêa da; Silva, M; Zhong, Ningning; Liu, Zufa

doi:10.1016/j.coal.2003.12.001

Cited by 21 publications

(4 citation statements)

References 26 publications

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“…The high ash yield and the relative low sulfur content obtained for these coals confirm the literature data (Silva 2007;Silva and Kalkreuth 2005;Pires and Querol 2004;Kalkreuth et al 2004;BRAZIL 1987;Fiedler 1987).…”

Section: Mineralogical Characterization and Major Element Distributiosupporting

confidence: 89%

Characterization of Santa Catarina (Brazil) coal with respect to human health and environmental concerns

Silva

Oliveira

Boit

et al. 2008

Environ Geochem Health

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The current paper presents the concentration, distribution, and modes of occurrence of trace elements of 13 coals from south Brazil. The samples were collected in the state of Santa Catarina. Chemical analyses and the high ash yields indicate that all studied coals are rich in mineral matter, with SiO(2) and Al(2)O(3) dominating as determined by inductively coupled plasma-atomic emission spectrometry (ICP-AES). Quartz is the main mineral species and is associated with minor levels of feldspars, kaolinite, hematite, and iron-rich carbonates. The contents of trace elements, including As, Pb, Cd, Ni, Cr, Mn, Be, V, U, Zn, Li, Cu, Tl, and Ni, in coals were determined. A comparison of ranges and means of elemental concentrations in Santa Catarina, Brazil, and world coals shows that the ranges of most elements in Santa Catarina coal are very close to the usual worldwide concentration ranges in coal.

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Section: Mineralogical Characterization and Major Element Distributiosupporting

confidence: 89%

Characterization of Santa Catarina (Brazil) coal with respect to human health and environmental concerns

Silva

Oliveira

Boit

et al. 2008

Environ Geochem Health

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“…Assim as importantes diferenças na intensidade de fluorescência entre o carvão brasileiro e o americano devem estar associadas a questões geológicas particulares da camada Barro Branco, uma vez que as amostras são de mesmo rank. Essa observação vai ao encontro com os estudos de Corrêa da Silva [14] e Kalkreuth et al [15], os quais relatam a possível incorporação de substâncias provenientes de lipídios em vitrinitas do carvão da camada Barro Branco durante o seu processo de formação geológico. Materiais lipídicos são extremamente reativos ao processo de coqueificação e diversos estudos mostram que carvões que possuem vitrinitas com alta intensidade de fluorescência secundária desenvolvem elevada termoplasticidade [10,16].…”

Section: Composição Químicaunclassified

Relação Entre as Propriedades Do Carvão Barro Branco (Santa Catarina-Brasil) E Seu Comportamento Termoplástico Anômalo

Flores¹,

Agra²,

Silva³

et al. 2018

ABM Proceedings

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Resumo O presente trabalho visou avaliar e justificar o comportamento termoplástico anômalo do carvão da camada Barro Branco (Santa Catarina-Brasil). Para isso o carvão da camada Barro Branco e três carvões coqueificáveis importados foram individualmente caracterizados e comparados a partir de análises químicas, petrográficas e termoplásticas. Os resultados obtidos revelaram que o carvão da camada Barro Branco apresenta propriedades termoplásticas anômalas, caracterizadas pela elevada formação de fase plástica com baixa viscosidade. Essas características são oriundas da impregnação por compostos lipídicos de componentes petrográficos do grupo da vitrinita, resultando em elevado teor de hidrogênio, alta intensidade de fluorescência e maior rendimento de extração. Palavras-chave: carvão brasileiro, camada Barro Branco, propriedades termoplásticas, alta fluidez RELATIONSHIP BETWEEN THE PROPERTIES OF THE BARRO BRANCO COAL (SANTA CATARINA-BRAZIL) AND ITS ANOMALOUS THERMOPLASTIC BEHAVIOR Abstract The present work aimed to evaluate and justify the thermoplastic behavior of the Barro Branco coal seam (Santa Catarina-Brazil). For this, Barro Branco coal and three imported coking coals were individually characterized and compared based on chemical, petrographic and thermoplastic analyzes. The results showed that the Barro Branco presents anomalous thermoplastic properties, characterized by the formation of high quantities of plastic phase with low viscosity. This behavior arises from the impregnation by lipid compounds of petrographic components of the vitrinite group of Barro Branco coal, resulting in high hydrogen content, high fluorescence intensity and higher extraction yield when compared to other coals.

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“…tool for determining thermal maturities of sedimentary rocks. FAMM has been used in a number of studies (e.g., Lo et al, 1997;Ujiie et al, 1999;Wilkins, 1999;Michaelson, 2002;Kalkreuth et al, 2004;Petersen et al, 2009;Kassaie et al, 2015). The method and its application to vitrinite reflectance suppression analyses, has been described by Wilkins et al (1992).…”

Section: Introductionmentioning

confidence: 99%

Suppression Of Vitrinite Reflectance In The Malay And Penyu Basins, Offshore Peninsular Malaysia: A Review Of Available Data And Potential Implications

Madon¹,

Jong²,

Kessler³

et al. 2021

BGSM

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Suppression of vitrinite reflectance is a well-known phenomenon and, if not recognised and corrected for, could potentially have a big impact on the results of thermal history and basin modelling, and seriously affect exploration decisions. The Malay Basin is known to have shown evidence of vitrinite reflectance (Ro) suppression in a selection of wells that were also analysed using the FAMM (Fluorescence Alteration of Multiple Macerals) technique. Analysis of available data suggests that potential vitrinite reflectance suppression may be identified using an empirical regression line which separates “suppressed” from “normal” Ro values based on the FAMM data. The “FAMM minimum regression line” was used to screen through Ro data from 142 wells (drilled between 1969 and 2005) in the Malay Basin and it is estimated that a quarter of those wells might be affected by suppression. Possible suppression was also noted in the Penyu Basin, where bottom-hole temperatures in some wells are consistently higher than Ro-derived temperatures. The regression line could be used as a tool for quick screening of legacy Ro data for potential suppression of vitrinite reflectance. At the very least, it could raise suspicion about the quality of the Ro data and trigger further investigation as to whether the suppression is “real”, and help justify additional or specialised laboratory analyses such as FAMM and VIRF (Vitrinite-Inertinite Reflectance and Fluorescence) to correct for suppression.

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The application of FAMM (Fluorescence Alteration of Multiple Macerals) analyses for evaluating rank of Paraná Basin coals, Brazil

Cited by 21 publications

References 26 publications

Characterization of Santa Catarina (Brazil) coal with respect to human health and environmental concerns

Characterization of Santa Catarina (Brazil) coal with respect to human health and environmental concerns

Relação Entre as Propriedades Do Carvão Barro Branco (Santa Catarina-Brasil) E Seu Comportamento Termoplástico Anômalo

Suppression Of Vitrinite Reflectance In The Malay And Penyu Basins, Offshore Peninsular Malaysia: A Review Of Available Data And Potential Implications

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