In situ optical fiber-based characterization of asphalthene precipitation in crude oils

• Grant number: 12/15018-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: September 01, 2012
• End date: July 31, 2013
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: René Alfonso Nome Silva
• Grantee: Samantha Bittencourt Carvalho Rosa
• Host Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

This project proposes the design and construction of a laser-based instrument in free space and in waveguides for spectroscopy and microscopy inside high-pressure cells. Initially, the high-pressure cell will be adapted to enable optical measurements in situ. Afterward, the resulting instrument will be used to perform a preliminary in situ characterization of the onset of asphaltene precipitation as a function of the temperature, pressure, and chemical composition of the mixture containing crude oils. The measurements will be complemented by analyses of correlations between morphology and electronic/vibrational structure.(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)