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Study of spectroscopic parameters for construction of a NIR photometer dedicated to determining major hydrocarbons in natural gas

Grant number: 05/03150-7
Support type:Scholarships in Brazil - Master
Effective date (Start): March 01, 2006
Effective date (End): February 28, 2007
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal researcher:Jarbas José Rodrigues Rohwedder
Grantee:Camila Manara Franco
Home Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

In the last years, the Brazilian energy policy has directed efforts to increase the natural gas participation in the national energy matrix. Gas chromatography is the reference method used to determinate this fuel chemical composition, which is direct related with the quality parameters. Although it shows good precision and accuracy, the gas chromatographs have difficulties to be connected to the production line and even in the development of portable instruments.An increasing use of near infrared spectroscopy (NIR) has recently been observed due to its advantages compared with other analytical techniques such as speed in data collection and instrumentation robustness, allowing the construction of simple equipment to collect spectra in field.In this work, spectroscopic parameters will be defined for the construction of a NIR photometer dedicated to determine the main hydrocarbons in natural gas as a fast and cheap alternative for the analysis of this fuel. By using the spectral data and chemometrics, the wavelengths (variables) containing information of each hydrocarbon will be choosen and a spectroscopic sample cell will be constructed for gases analysis, evaluating the path length, the inside volume and the easiness of cleaning.

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Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
FRANCO, Camila Manara. Determination of major hydrocarbons in natural gas using near infrared spectroscopy and chemometrics. 2008. Master's Dissertation - Universidade Estadual de Campinas (UNICAMP). Instituto de Química Campinas, SP.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.