Olfactometric and Chemical Characterisation of Gaseous Emission from Crude Oils
This study focuses on the olfactometric and chemical characterisation of gaseous and vapour emissions from different crude oils. To investigate this topic, laboratory experiments were set up to obtain comparable gaseous samples: they were estimated in terms of odour concentration (C<sub>od<...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-03-01
|
| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/30/5/1136 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850053239544741888 |
|---|---|
| author | Elisa Polvara Vittoria Legnani Marzio Invernizzi Selena Sironi |
| author_facet | Elisa Polvara Vittoria Legnani Marzio Invernizzi Selena Sironi |
| author_sort | Elisa Polvara |
| collection | DOAJ |
| description | This study focuses on the olfactometric and chemical characterisation of gaseous and vapour emissions from different crude oils. To investigate this topic, laboratory experiments were set up to obtain comparable gaseous samples: they were estimated in terms of odour concentration (C<sub>od</sub>), via dynamic olfactometry, and chemical-specific characterisation. It was found that, even if considered similar in regard to physical properties and chemical composition, the gaseous emissions of different crude oils are significantly different in terms of odorous potential. The observed discrepancy appears to be associated with the presence of volatile organic sulphur compounds (VOSCs), and the highest values of C<sub>od</sub> were found in samples containing mercaptans and sulphides. In addition, from the conducted comparison, it appeared that crude odorous potential, in terms of C<sub>od</sub>, is not strictly linked to the quantity of the volatile organic compounds (VOCs), H<sub>2</sub>S concentration, or a priori knowledge of the percentage of elemental sulphur in the crude; on the contrary, the presence of volatile organic sulphur compounds in the gaseous emissions is the most influential parameter for the odour potential of this matrix. |
| format | Article |
| id | doaj-art-ff12cd2eda514ccb9947c0d3c754a1ea |
| institution | DOAJ |
| issn | 1420-3049 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj-art-ff12cd2eda514ccb9947c0d3c754a1ea2025-08-20T02:52:35ZengMDPI AGMolecules1420-30492025-03-01305113610.3390/molecules30051136Olfactometric and Chemical Characterisation of Gaseous Emission from Crude OilsElisa Polvara0Vittoria Legnani1Marzio Invernizzi2Selena Sironi3Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, ItalyDepartment of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, ItalyDepartment of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, ItalyDepartment of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, ItalyThis study focuses on the olfactometric and chemical characterisation of gaseous and vapour emissions from different crude oils. To investigate this topic, laboratory experiments were set up to obtain comparable gaseous samples: they were estimated in terms of odour concentration (C<sub>od</sub>), via dynamic olfactometry, and chemical-specific characterisation. It was found that, even if considered similar in regard to physical properties and chemical composition, the gaseous emissions of different crude oils are significantly different in terms of odorous potential. The observed discrepancy appears to be associated with the presence of volatile organic sulphur compounds (VOSCs), and the highest values of C<sub>od</sub> were found in samples containing mercaptans and sulphides. In addition, from the conducted comparison, it appeared that crude odorous potential, in terms of C<sub>od</sub>, is not strictly linked to the quantity of the volatile organic compounds (VOCs), H<sub>2</sub>S concentration, or a priori knowledge of the percentage of elemental sulphur in the crude; on the contrary, the presence of volatile organic sulphur compounds in the gaseous emissions is the most influential parameter for the odour potential of this matrix.https://www.mdpi.com/1420-3049/30/5/1136odour emissionsvolatile organic sulphur compounds (VOSCs)dynamic olfactometryTVOCodorous potential |
| spellingShingle | Elisa Polvara Vittoria Legnani Marzio Invernizzi Selena Sironi Olfactometric and Chemical Characterisation of Gaseous Emission from Crude Oils Molecules odour emissions volatile organic sulphur compounds (VOSCs) dynamic olfactometry TVOC odorous potential |
| title | Olfactometric and Chemical Characterisation of Gaseous Emission from Crude Oils |
| title_full | Olfactometric and Chemical Characterisation of Gaseous Emission from Crude Oils |
| title_fullStr | Olfactometric and Chemical Characterisation of Gaseous Emission from Crude Oils |
| title_full_unstemmed | Olfactometric and Chemical Characterisation of Gaseous Emission from Crude Oils |
| title_short | Olfactometric and Chemical Characterisation of Gaseous Emission from Crude Oils |
| title_sort | olfactometric and chemical characterisation of gaseous emission from crude oils |
| topic | odour emissions volatile organic sulphur compounds (VOSCs) dynamic olfactometry TVOC odorous potential |
| url | https://www.mdpi.com/1420-3049/30/5/1136 |
| work_keys_str_mv | AT elisapolvara olfactometricandchemicalcharacterisationofgaseousemissionfromcrudeoils AT vittorialegnani olfactometricandchemicalcharacterisationofgaseousemissionfromcrudeoils AT marzioinvernizzi olfactometricandchemicalcharacterisationofgaseousemissionfromcrudeoils AT selenasironi olfactometricandchemicalcharacterisationofgaseousemissionfromcrudeoils |