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Size-exclusion chromatography for the determination of the boiling point distribution of high-boiling petroleum fractions
Abstract
The paper describes a new procedure for the determination of boiling point distribution of high-boiling petroleum fractions using size exclusion chromatography with refractive index detector. Thus far, the determination of boiling range distribution by chromatography has been accomplished using simulated distillation with gas chromatography with the flame ionization detection. This study revealed that in spite of substantial differences in the separation mechanism and the detection mode, the size exclusion chromatography technique yields similar results of the determination of boiling point distribution compared with simulated distillation and novel empty column gas chromatography. The developed procedure using size exclusion chromatography has a substantial applicability, especially in case of determination of exact final boiling point values for high-boiling mixtures, for which a standard high-temperature simulated distillation would have to be used. In this case, the precision of final boiling point determination is low due to the high final temperatures of the gas chromatograph oven and an insufficient thermal stability of both the GC stationary phase and the sample. Additionally, the use high performance liquid chromatography detectors more sensitive than the refractive index detector allows lowering the detection limit for high-molar-mass aromatic compounds, and thus increasing the sensitivity of final boiling point determination.
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Authors (3)
-
Andrzej Przyjazny
- Kettering University Department of Chemistry and Biochemistry
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
JOURNAL OF SEPARATION SCIENCE
no. 38,
edition 5,
pages 741 - 748,
ISSN: 1615-9306 - Language:
- English
- Publication year:
- 2015
- Bibliographic description:
- Boczkaj G., Przyjazny A., Kamiński M.: Size-exclusion chromatography for the determination of the boiling point distribution of high-boiling petroleum fractions // JOURNAL OF SEPARATION SCIENCE. -Vol. 38, iss. 5 (2015), s.741-748
- DOI:
- Digital Object Identifier (open in new tab) 10.1002/jssc.201401230
- Verified by:
- Gdańsk University of Technology
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