Petrography and geochemistry of exported colombian coals: Implications from correlation and regression analyses

dc.creatorAkinyemi, Segun Ajayi
dc.creatorBohórquez, Ferney
dc.creatorNazrul, Islam
dc.creatorSaikia, Binoy
dc.creatorHoffmann Sampaio, Carlos
dc.creatorCrissien Borrero, Tito José
dc.creatorSilva, Luis F. O
dc.date2022-07-27T18:50:03Z
dc.date2022-07-27T18:50:03Z
dc.date2021
dc.date.accessioned2023-10-03T19:54:25Z
dc.date.available2023-10-03T19:54:25Z
dc.identifierSegun A. Akinyemi, Ferney Bohórquez, Nazrul Islam, Binoy K. Saikia, Carlos H. Sampaio, Tito J. Crissien, Luis F.O. Silva, Petrography and geochemistry of exported Colombian coals: Implications from correlation and regression analyses, Energy Geoscience, Volume 2, Issue 3, 2021, Pages 201-210, ISSN 2666-7592, https://doi.org/10.1016/j.engeos.2020.12.003.
dc.identifier2666-7592
dc.identifierhttps://hdl.handle.net/11323/9409
dc.identifierhttps://doi.org/10.1016/j.engeos.2020.12.003.
dc.identifier10.1016/j.engeos.2020.12.003.
dc.identifierCorporación Universidad de la Costa
dc.identifierREDICUC - Repositorio CUC
dc.identifierhttps://repositorio.cuc.edu.co/
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9173189
dc.descriptionThe petrology of coal, as determined by the microscopic analysis of organic and inorganic elemental constituents of coal, provides information on its nature and characteristics. Coal is used worldwide in the production of thermal energy and coke. In the case of high-quality Colombian coals, only limited studies have been carried out. The present study presents the geochemical, mineralogical, and petrological characteristics of coal samples collected from Puerto Drummond in Cienaga, Colombia, to predict their potential uses. Therefore, the ultimate, proximate, petrographic, gross calorific value (GCV), ash fusion temperature, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray fluorescence (XRF), and Thermogravimetric (TG) analyses were employed in this study. The petrological analysis reveals that Colombian coals are naturally more abundant in vitrinite (72%) than inertinite (14–23%) macerals. Silicates and aluminosilicate are the main minerals present as fine particles mixed with macerals. The XRD and FTIR analyses show that the most common and dominant minerals are quartz, while gypsum, hematite, calcite and mica occur in lesser amounts. The oxide composition of the coal ashes consists of 51–58% SiO2 and 18–25% Al2O3 as determined by XRF analysis. In correlation and regression analysis, the moisture content shows a reverse correlation with GCV (Regression value of R2 = 0.68). This study helps researchers to comprehend the importance of Colombian coals and presents various techniques for characterisation of coals.
dc.format10 páginas
dc.formatapplication/pdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherBeijing: Elsevier B.V. on behalf of KeAi Communications Co. Ltd
dc.publisherChina
dc.relationEnergy Geoscience
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dc.rights© 2020 Sinopec Petroleum Exploration and Production Research Institute. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd.
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dc.rightshttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://purl.org/coar/access_right/c_abf2
dc.sourcehttps://www.sciencedirect.com/science/article/pii/S2666759220300822?via%3Dihub
dc.subjectCoal characterisation
dc.subjectGeochemistry
dc.subjectMineralogy
dc.subjectCoal petrology
dc.subjectColombia
dc.titlePetrography and geochemistry of exported colombian coals: Implications from correlation and regression analyses
dc.typeArtículo de revista
dc.typehttp://purl.org/coar/resource_type/c_6501
dc.typeText
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typehttp://purl.org/redcol/resource_type/ART
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typehttp://purl.org/coar/version/c_ab4af688f83e57aa
dc.coverageColombia


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