Controlling the phase of light to enable observation of the onset of asphalthene precipitation in crude oils

• Grant number: 12/14987-9
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: September 01, 2012
• End date: August 31, 2013
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: René Alfonso Nome Silva
• Grantee: Larissa Mendonça Thiegue
• Host Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

This project proposes the design and construction of a spatial light modulator-based instrument to enable spectroscopy and microscopy measurements in turbid and opaque media inside high pressure cells, in order to study asphalthene precipitation from crude oils. Initially, instrumentation and software will be developed for spatial modulation of the phase of light, together with theoretical calculations of evolutionary and adaptive propagation of light through turbid and opaque media. This will be followed by implementation of dynamic focusing to improve imaging and spectroscopy, together with instrument calibration based on known systems and theoretical calculations. In the second half of the project, the instrument will be used to perform spectroscopy and microscopy measurements in asphalthene suspensions. The instrument will also be adapted to the high-pressure cell.

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)