Abstract
Pyrolysis of high acidity olive oil, olive husk oil and animal fat was carried out under different atmospheres (vacuum, N2 and CH4), at constant temperature and different residence times. Bio-oils were the main pyrolysis products, with mass yields from 55.2% to 88.9%. The use of nitrogen or methane atmospheres led to an increase in the formation of gas products (14.1% to 26%), while increasing the residence time resulted in higher yields of gases and solids. The pyrolysis bio-oils contained 54.4% to 88.7% (w/w) of distillable liquids, collected as a light fraction and a heavy fraction. Both fractions were analysed by GC-MS to determine the hydrocarbon profiles and identification of functional groups. Vacuum pyrolysis promoted the formation of low molecular weight liquids while the use of a methane atmosphere increased the relative concentration of aliphatic components in the bio-oil.
Original language | English |
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Title of host publication | WASTES - Solutions, Treatments and Opportunities II - Selected papers from the 4th edition of the International Conference Wastes: Solutions, Treatments and Opportunities, 2017 |
Editors | Maria de Lurdes Lopes, Cândida Vilarinho, Fernando Castro |
Publisher | CRC Press/Balkema |
Pages | 425-430 |
Number of pages | 6 |
ISBN (Print) | 9781138196698 |
DOIs | |
Publication status | Published - 1 Jan 2018 |
Event | 4th International Conference Wastes: Solutions, Treatments and Opportunities, WASTES 2017 - Porto, Portugal Duration: 25 Sept 2017 → 26 Sept 2017 |
Conference
Conference | 4th International Conference Wastes: Solutions, Treatments and Opportunities, WASTES 2017 |
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Country/Territory | Portugal |
City | Porto |
Period | 25/09/17 → 26/09/17 |
Keywords
- Pyrolysis
- vegetable oils
- fats
- methane atmosphere
- Vacuum