Spectroscopic characterization of the onset of asphaltene precipitation em crude oils enriched with carbon dioxide or natural gas

• Grant number: 11/20144-1
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: February 01, 2012
• End date: December 31, 2013
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: René Alfonso Nome Silva
• Grantee: Juliana Crotti Franco
• Host Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

The goal of this project is to characterize asphalthenes in natural oil as well as asphalthenes diluted in solvents that induce their precipitation. The first step involves literature review, training with instruments to be used, documentation of materials and reagents needed, and sample preparation. Afterwards, spectroscopic characterization of the sample will be performed, including electronic spectroscopy (UV-visible and fluorescence), vibrational (FTIR and Raman), and correlation (dynamic light scattering and diffusing wave spectroscopy) measurements. Finally, the samples will also be characterized under the same conditions to be used in the high-pressure cell experiments of asphalthene precipitation. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

FRANCO, JULIANA C.; GONCALVES, GRASIELE; SOUZA, MONIQUE S.; ROSA, SAMANTHA B. C.; THIEGUE, LARISSA M.; ATVARS, TERESA D. Z.; ROSA, PAULO T. V.; NOME, RENE A.. Towards in situ fluorescence spectroscopy and microscopy investigations of asphaltene precipitation kinetics. Optics Express, v. 21, n. 25, p. 30874-30885, DEC 16 2013. (11/20143-5, 11/20144-1, 12/15018-0, 12/14987-9, 08/10593-0)