Application of Savitzky-Golay and Fast Fourier Transform filters in the processing of derivative spectra obtained from asphaltene solutions Espectroscopía UV-Vis derivada para asfaltenos
Asphaltenes are ultra-complex mixtures that negatively impact oil refining, production and transportation. The interest in its study ranges from its characterization to define its molecular structure, to the understanding of its interfacial behavior. Asphaltenes present a great diversity of function...
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Universidad Autónoma de Tamaulipas
2024
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Padrón-Ortega, Sergio Iván Banda-Cruz, Ernestina Elizabeth Gallardo-Rivas, Nohra Violeta |
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Padrón-Ortega, Sergio Iván Banda-Cruz, Ernestina Elizabeth Gallardo-Rivas, Nohra Violeta Application of Savitzky-Golay and Fast Fourier Transform filters in the processing of derivative spectra obtained from asphaltene solutions Espectroscopía UV-Vis derivada para asfaltenos |
| author_facet |
Padrón-Ortega, Sergio Iván Banda-Cruz, Ernestina Elizabeth Gallardo-Rivas, Nohra Violeta |
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Padrón-Ortega, Sergio Iván |
| title |
Application of Savitzky-Golay and Fast Fourier Transform filters in the processing of derivative spectra obtained from asphaltene solutions Espectroscopía UV-Vis derivada para asfaltenos |
| title_short |
Application of Savitzky-Golay and Fast Fourier Transform filters in the processing of derivative spectra obtained from asphaltene solutions Espectroscopía UV-Vis derivada para asfaltenos |
| title_full |
Application of Savitzky-Golay and Fast Fourier Transform filters in the processing of derivative spectra obtained from asphaltene solutions Espectroscopía UV-Vis derivada para asfaltenos |
| title_fullStr |
Application of Savitzky-Golay and Fast Fourier Transform filters in the processing of derivative spectra obtained from asphaltene solutions Espectroscopía UV-Vis derivada para asfaltenos |
| title_full_unstemmed |
Application of Savitzky-Golay and Fast Fourier Transform filters in the processing of derivative spectra obtained from asphaltene solutions Espectroscopía UV-Vis derivada para asfaltenos |
| title_sort |
application of savitzky-golay and fast fourier transform filters in the processing of derivative spectra obtained from asphaltene solutions espectroscopía uv-vis derivada para asfaltenos |
| description |
Asphaltenes are ultra-complex mixtures that negatively impact oil refining, production and transportation. The interest in its study ranges from its characterization to define its molecular structure, to the understanding of its interfacial behavior. Asphaltenes present a great diversity of functional groups and different ty-pes of associations such as non-covalent ones, hydrogen bonds, coordination complexes and interactions between parallel aromatic nuclei. The objective of this work was to analyze the composition present in asphaltenes extracted from heavy and extra-heavy crude oils using derivative spectroscopy. Asphaltene solutions were prepared in the concentration range of 20 mg/L to 100 mg/L and analyzed with UV-Visspectroscopy. The selection of zero-order spectra for processing was made based on the sharpness present. The spectra were subsequently processed with OriginPro 8.5, to obtain first and second-order derived spectra. The processing of the zero order spectra was performed with the Savitsky-Golay and Fast Fourier transform (FFT) filters. The derived spectra obtained presented clear signals with the presence of little noise, which made possible the identification of aromatic functional groups, from 1 to 4 rings in the wavelength range of 200 nm to 450 nm. The use of filters improved the quality of the signals and allowed the identification of components and structures present in asphaltenes. The Savitsky-Golay filter increased the resolution of the spectra derived from asphaltenes extracted from heavy crude oils and the FFT filter increased the asphaltenes extracted from heavy crude oils. Morphological differences between asphaltenes extracted from heavy and extra-heavy crude oils were observed by SEM, which maybe related to the composition and aromatic structures present in asphaltenes. |
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Universidad Autónoma de Tamaulipas |
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2024 |
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https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/1812 |
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oai:ojs.pkp.sfu.ca:article-18122024-03-22T16:31:19Z Application of Savitzky-Golay and Fast Fourier Transform filters in the processing of derivative spectra obtained from asphaltene solutions Espectroscopía UV-Vis derivada para asfaltenos Aplicación de filtros Savitzky-Golay y transformada rápida de Fourier en el procesamiento de espectros derivados obtenidos a partir de soluciones de asfaltenos Padrón-Ortega, Sergio Iván Banda-Cruz, Ernestina Elizabeth Gallardo-Rivas, Nohra Violeta Asphaltenes derivative spectroscopy Savitsky-Golay FFT filters Asfaltenos espectroscopía derivada Savitsky-Golay filtros FFT Asphaltenes are ultra-complex mixtures that negatively impact oil refining, production and transportation. The interest in its study ranges from its characterization to define its molecular structure, to the understanding of its interfacial behavior. Asphaltenes present a great diversity of functional groups and different ty-pes of associations such as non-covalent ones, hydrogen bonds, coordination complexes and interactions between parallel aromatic nuclei. The objective of this work was to analyze the composition present in asphaltenes extracted from heavy and extra-heavy crude oils using derivative spectroscopy. Asphaltene solutions were prepared in the concentration range of 20 mg/L to 100 mg/L and analyzed with UV-Visspectroscopy. The selection of zero-order spectra for processing was made based on the sharpness present. The spectra were subsequently processed with OriginPro 8.5, to obtain first and second-order derived spectra. The processing of the zero order spectra was performed with the Savitsky-Golay and Fast Fourier transform (FFT) filters. The derived spectra obtained presented clear signals with the presence of little noise, which made possible the identification of aromatic functional groups, from 1 to 4 rings in the wavelength range of 200 nm to 450 nm. The use of filters improved the quality of the signals and allowed the identification of components and structures present in asphaltenes. The Savitsky-Golay filter increased the resolution of the spectra derived from asphaltenes extracted from heavy crude oils and the FFT filter increased the asphaltenes extracted from heavy crude oils. Morphological differences between asphaltenes extracted from heavy and extra-heavy crude oils were observed by SEM, which maybe related to the composition and aromatic structures present in asphaltenes. Los asfaltenos son mezclas ultracomplejas que impactan negativamente la refinación, producción y transporte del petróleo. El interés en su estudio abarca desde su caracterización para definir su estructura molecular, hasta la comprensión de su comportamiento interfacial. Los asfaltenos presentan una gran diversidad de grupos funcionales y diferentes tipos de asociaciones como las de tipo no covalentes, enlaces de hidrógeno, complejo de coordinación e interacciones entre núcleos aromáticos paralelos. El objetivo de este trabajo fue analizar la composición presente en asfaltenos extraídos de crudos pesados y extrapesados mediante espectroscopía derivada. Se prepararon soluciones de asfaltenos en el rango de concentración de 20 mg/L a 100 mg/L y se analizaron con espectroscopía UV-Vis. La selección de los espectros de orden cero para el procesamiento se realizó con base en la nitidez presente. Los espectros fueron procesados con OriginPro 8.5, para la obtención de espectros derivados de primer y segundo orden. El procesamiento de los espectros de orden cero fue realizado con los filtros Savitsky-Golay y transformada rápida de Fourier (FFT). Los espectros derivados obtenidos presentaron señales nítidas con presencia de poco ruido, lo que hizo posible la identificación de grupos funcionales aromáticos, de 1 a 4 anillos en el rango de longitudes onda de 200 nm a 450 nm. El uso de filtros mejoró la calidad de las señales y permitió la identificación de componentes y estructuras presentes en asfaltenos. El filtro de Savitsky-Golay incrementó la resolución de los espectros derivados de asfaltenos extraídos de crudos pesados y el filtro FFT de asfaltenos de crudos extrapesados. Se observaron diferencias morfológicas entre los asfaltenos extraídos de crudos pesados y extrapesados mediante SEM, que pueden ser relacionadas con la composición y estructuras aromáticas presentes en asfaltenos. Universidad Autónoma de Tamaulipas 2024-01-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html text/xml https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/1812 10.29059/cienciauat.v18i2.1812 CienciaUAT; Vol 18 No. 2. January-June 2024; 170-182 CienciaUAT; Vol. 18 No. 2: Enero-Junio 2024; 170-182 2007-7858 2007-7521 spa https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/1812/1179 https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/1812/1161 https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/1812/1218 Derechos de autor 2023 Universidad Autónoma de Tamaulipas https://creativecommons.org/licenses/by-nc-sa/4.0 |
