Title
Evaluation of kinetic parameters by thermogravimetric analysis of shale in muerto formation, Talara-Peru
Other title
Evaluación de los Parámetros Cinéticos por Análisis Termogravimétrico del Esquisto en la Formación Muerto, Talara-Perú
Date Issued
01 January 2020
Access level
metadata only access
Resource Type
conference paper
Publisher(s)
Latin American and Caribbean Consortium of Engineering Institutions
Abstract
Shale is a fine-grained sedimentary rock composed of minerals and organic matter from which oil can be obtained through thermochemical processes such as pyrolysis. The Muerto formation is located in the Lancones Basin, Peru, which has favorable geological and geochemical characteristics that indicate the existence of shale rocks with unconventional oil potential. Chemical characterization and kinetic analysis of three shale samples were performed to assess their potential as a source of liquid fuels. The elemental analysis indicates an H/C ratio in the range of 0.45 to 1.13. The organic matter content analyzed by the Walkley & Black method varies between 5.60 to 7.03% (m/m) and from 1.65 to 3.40% (m/m) according to the Soxhlet extraction method. The thermogravimetric analysis was performed in the range of 30 ° C to 900 ° C, which indicated that the decomposition occurs in three stages, in stage (a) dehydration occurs, in stage (b) the decomposition of the organic matter and in step (c) the carbonates are decomposed. Steps (b) and (c) show the potential of obtaining fuels via thermochemical processes. The kinetic analysis was developed using the isoconversional methods of Friedman, Ozawa-Flynn-Wall and Kissinger-Akahira-Sunose. The best results were obtained by applying the Friedman method, which for the conversion range of 0.05≤ α ≤0.35 determines an average activation energy of 128.738 kJ/mol, an average frequency factor of 2.37E+08 min-1, with an R2 average of 0.858. In the range of 0.45≤ α ≤0.95, there is an average activation energy of 156.584 kJ/mol, an average frequency factor of 1.81E+08 min-1 and an average R2 of 1.
Language
Spanish
OCDE Knowledge area
Termodinámica Otras ingenierías y tecnologías
Scopus EID
2-s2.0-85096801303
Source
Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology
Resource of which it is part
Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology
ISSN of the container
24146390
ISBN of the container
978-958520714-1
Conference
18th LACCEI International Multi-Conference for Engineering, Education Caribbean Conference for Engineering and Technology: "Engineering, Integration, and Alliances for a Sustainable Development" "Hemispheric Cooperation for Competitiveness and Prosperity on a Knowledge-Based Economy", LACCEI 2020 Virtual, Online 27 July 2020 through 31 July 2020
Sponsor(s)
Los autores agradecen al Vicerrectorado de Investigación de la Universidad Nacional de Ingeniería, a la Unidad de Investigación de la Facultad de Ingeniería de Petróleo, Gas Natural y Petroquímica, al Grupo de Investigación Walac Research y al Grupo de Investigación en Procesos Termoquímicos de la UNI por el apoyo prestado para la realización de este proyecto.
Sources of information: Directorio de Producción Científica Scopus