Ruben-Dario Urbano-Noguera, H. Estupiñán-Duran, Gustavo Neira-Arenas
{"title":"微拉曼光谱在哥伦比亚中高阶煤镜质组反射率定量分析中的应用","authors":"Ruben-Dario Urbano-Noguera, H. Estupiñán-Duran, Gustavo Neira-Arenas","doi":"10.19053/01211129.V29.N54.2020.12241","DOIUrl":null,"url":null,"abstract":"The structural changes and the degree of maturity of three Colombian coals from the Santander and Antioquia provinces were studied using a simple and fast curve fitting method of the RBS parameters (the distance between band G and band D), FWHM G (total width at half the maximum of the G band) and AR (area of the Raman spectrum), obtained by deconvolution and band resolution of the Micro-Raman spectra. The results were compared by morphological and chemical analysis using a SEM scanning electron microscope coupled with a solid state X ray EDS detector. A percentage of vitrinite reflectance (% Ro) of 4.3 %, 3.8 % and 0.07 % was obtained, a percentage of carbon by EDS analysis of 91.47 %, 87.78 %, 73.4 %, a morphological description by SEM analysis presenting smooth, rough surfaces and rough-lumpy and pore size between 0.7 μm 0.8 μm, 1.3 μm 1.5 μm and 0.2 μm 1 M. Sc. (c) Universidad Nacional de Colombia (Medellín-Antioquia, Colombia). rdurbanon@unal.edu.co. ORCID: 0000-0001-5289-0621. 2 Ph. D. Universidad Nacional de Colombia (Medellín-Antioquia, Colombia). haestupinand@unal.edu.co. ORCID: 0000-0002-9607-3364. 3 Ph. D. Universidad Nacional de Colombia (Medellín-Antioquia, Colombia). gneira@unal.edu.co. ORCID: 00000003-1178-1917. Application of Micro-Raman Spectroscopy for the Quantitative Analysis of Vitrinite Reflectance in Medium and High Rank Colombian Coals Revista Facultad de Ingeniería (Rev. Fac. Ing.) Vol. 29 (54), e12241. 2020. Tunja-Boyacá, Colombia. L-ISSN: 0121-1129, e-ISSN: 2357-5328, DOI: https://doi.org/10.19053/01211129.v29.n54.2020.12241 0.7 μm for the anthracite, semi-anthracite and bituminous samples, respectively. The results showed that based on this method, it was possible to obtain a model that allows to rapidly analyze and characterize the coal. The results compare very well to those of Colombian coals normalized by other methods to improve the precision of the measurement. The modified method, however, did not offer an appropriate fit for the lower range coal and produced extremely low reflectance values. This effect is possibly related with the molecular structure of organic matter in coal or the presence of fluorescence interference.","PeriodicalId":21428,"journal":{"name":"Revista Facultad De Ingenieria-universidad De Antioquia","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Application of Micro-Raman Spectroscopy for the Quantitative Analysis of Vitrinite Reflectance in Medium and High Rank Colombian Coals\",\"authors\":\"Ruben-Dario Urbano-Noguera, H. Estupiñán-Duran, Gustavo Neira-Arenas\",\"doi\":\"10.19053/01211129.V29.N54.2020.12241\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The structural changes and the degree of maturity of three Colombian coals from the Santander and Antioquia provinces were studied using a simple and fast curve fitting method of the RBS parameters (the distance between band G and band D), FWHM G (total width at half the maximum of the G band) and AR (area of the Raman spectrum), obtained by deconvolution and band resolution of the Micro-Raman spectra. The results were compared by morphological and chemical analysis using a SEM scanning electron microscope coupled with a solid state X ray EDS detector. A percentage of vitrinite reflectance (% Ro) of 4.3 %, 3.8 % and 0.07 % was obtained, a percentage of carbon by EDS analysis of 91.47 %, 87.78 %, 73.4 %, a morphological description by SEM analysis presenting smooth, rough surfaces and rough-lumpy and pore size between 0.7 μm 0.8 μm, 1.3 μm 1.5 μm and 0.2 μm 1 M. Sc. (c) Universidad Nacional de Colombia (Medellín-Antioquia, Colombia). rdurbanon@unal.edu.co. ORCID: 0000-0001-5289-0621. 2 Ph. D. Universidad Nacional de Colombia (Medellín-Antioquia, Colombia). haestupinand@unal.edu.co. ORCID: 0000-0002-9607-3364. 3 Ph. D. Universidad Nacional de Colombia (Medellín-Antioquia, Colombia). gneira@unal.edu.co. ORCID: 00000003-1178-1917. Application of Micro-Raman Spectroscopy for the Quantitative Analysis of Vitrinite Reflectance in Medium and High Rank Colombian Coals Revista Facultad de Ingeniería (Rev. Fac. Ing.) Vol. 29 (54), e12241. 2020. Tunja-Boyacá, Colombia. L-ISSN: 0121-1129, e-ISSN: 2357-5328, DOI: https://doi.org/10.19053/01211129.v29.n54.2020.12241 0.7 μm for the anthracite, semi-anthracite and bituminous samples, respectively. The results showed that based on this method, it was possible to obtain a model that allows to rapidly analyze and characterize the coal. The results compare very well to those of Colombian coals normalized by other methods to improve the precision of the measurement. The modified method, however, did not offer an appropriate fit for the lower range coal and produced extremely low reflectance values. This effect is possibly related with the molecular structure of organic matter in coal or the presence of fluorescence interference.\",\"PeriodicalId\":21428,\"journal\":{\"name\":\"Revista Facultad De Ingenieria-universidad De Antioquia\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2020-12-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Revista Facultad De Ingenieria-universidad De Antioquia\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.19053/01211129.V29.N54.2020.12241\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Revista Facultad De Ingenieria-universidad De Antioquia","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.19053/01211129.V29.N54.2020.12241","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, MULTIDISCIPLINARY","Score":null,"Total":0}
Application of Micro-Raman Spectroscopy for the Quantitative Analysis of Vitrinite Reflectance in Medium and High Rank Colombian Coals
The structural changes and the degree of maturity of three Colombian coals from the Santander and Antioquia provinces were studied using a simple and fast curve fitting method of the RBS parameters (the distance between band G and band D), FWHM G (total width at half the maximum of the G band) and AR (area of the Raman spectrum), obtained by deconvolution and band resolution of the Micro-Raman spectra. The results were compared by morphological and chemical analysis using a SEM scanning electron microscope coupled with a solid state X ray EDS detector. A percentage of vitrinite reflectance (% Ro) of 4.3 %, 3.8 % and 0.07 % was obtained, a percentage of carbon by EDS analysis of 91.47 %, 87.78 %, 73.4 %, a morphological description by SEM analysis presenting smooth, rough surfaces and rough-lumpy and pore size between 0.7 μm 0.8 μm, 1.3 μm 1.5 μm and 0.2 μm 1 M. Sc. (c) Universidad Nacional de Colombia (Medellín-Antioquia, Colombia). rdurbanon@unal.edu.co. ORCID: 0000-0001-5289-0621. 2 Ph. D. Universidad Nacional de Colombia (Medellín-Antioquia, Colombia). haestupinand@unal.edu.co. ORCID: 0000-0002-9607-3364. 3 Ph. D. Universidad Nacional de Colombia (Medellín-Antioquia, Colombia). gneira@unal.edu.co. ORCID: 00000003-1178-1917. Application of Micro-Raman Spectroscopy for the Quantitative Analysis of Vitrinite Reflectance in Medium and High Rank Colombian Coals Revista Facultad de Ingeniería (Rev. Fac. Ing.) Vol. 29 (54), e12241. 2020. Tunja-Boyacá, Colombia. L-ISSN: 0121-1129, e-ISSN: 2357-5328, DOI: https://doi.org/10.19053/01211129.v29.n54.2020.12241 0.7 μm for the anthracite, semi-anthracite and bituminous samples, respectively. The results showed that based on this method, it was possible to obtain a model that allows to rapidly analyze and characterize the coal. The results compare very well to those of Colombian coals normalized by other methods to improve the precision of the measurement. The modified method, however, did not offer an appropriate fit for the lower range coal and produced extremely low reflectance values. This effect is possibly related with the molecular structure of organic matter in coal or the presence of fluorescence interference.
期刊介绍：
Revista Facultad de Ingenieria started in 1984 and is a publication of the School of Engineering at the University of Antioquia.
The main objective of the journal is to promote and stimulate the publishing of national and international scientific research results. The journal publishes original articles, resulting from scientific research, experimental and or simulation studies in engineering sciences, technology, and similar disciplines (Electronics, Telecommunications, Bioengineering, Biotechnology, Electrical, Computer Science, Mechanical, Chemical, Environmental, Materials, Sanitary, Civil and Industrial Engineering).
In exceptional cases, the journal will publish insightful articles related to current important subjects, or revision articles representing a significant contribution to the contextualization of the state of the art in a known relevant topic. Case reports will only be published when those cases are related to studies in which the validity of a methodology is being proven for the first time, or when a significant contribution to the knowledge of an unexplored system can be proven.
All published articles have undergone a peer review process, carried out by experts recognized for their knowledge and contributions to the relevant field.
To adapt the Journal to international standards and to promote the visibility of the published articles; and therefore, to have a greater impact in the global academic community, after November 1st 2013, the journal will accept only manuscripts written in English for reviewing and publication.
Revista Facultad de Ingeniería –redin is entirely financed by University of Antioquia
Since 2015, every article accepted for publication in the journal is assigned a DOI number.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
