Comparison and Optimization of Pyrolysis Bio-Oil Composition from Sewage Sludge and Spirulina Microalgae
The abundant presence of spirulina microalgae and sewage sludge led to the researchers pay attention to recycling and economical conversion into valuable materials. This study investigated the simultaneous pyrolysis composition of two materials, spirulina microalgae and sewage sludge and also the fa...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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University of Tehran
2023-06-01
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| Series: | Journal of Chemical and Petroleum Engineering |
| Subjects: | |
| Online Access: | https://jchpe.ut.ac.ir/article_91934.html |
| _version_ | 1797682749895606272 |
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| author | Reza Hematkhah Ahmad Hallajisani Mohammad Samipourgiri |
| author_facet | Reza Hematkhah Ahmad Hallajisani Mohammad Samipourgiri |
| author_sort | Reza Hematkhah |
| collection | DOAJ |
| description | The abundant presence of spirulina microalgae and sewage sludge led to the researchers pay attention to recycling and economical conversion into valuable materials. This study investigated the simultaneous pyrolysis composition of two materials, spirulina microalgae and sewage sludge and also the factors affecting of the production of bio-oil from them. The effect of temperature, weight ratio of spirulina to SS, and the heating rate was investigated. Optimal conditions for pyrolysis was obtained at 519.3 °C, the weight ratio of 0.73 and heating rate of 17.9 °C/min and bio-oil production yield also was obtained 69.35%. The heat value of bio-oil was obtained at 25.52 MJ/kg and its energy efficiency was 66.3%. The results showed that with increasing in the temperature, the amount of aromatic substances that enhance the heat value were increased. Also, by directing the reaction to optimal conditions, the oxygenated and nitrogenous compounds detected in the bio-oil were reduced. The highest bio-oil yield was obtained at 69.09% and 450 °C, the weight ratio of (spirulina /SS) 0.5 and heating rate of 20 °C/min. The simultaneous combination of spirulina and SS increases the number of aromatic substances and decreases oxygenated and nitrogenous group spirulina in bio-oils. |
| first_indexed | 2024-03-12T00:04:21Z |
| format | Article |
| id | doaj.art-9cef46f8f2c4407fa3a405e37b4b3fc3 |
| institution | Directory Open Access Journal |
| issn | 2423-673X 2423-6721 |
| language | English |
| last_indexed | 2024-03-12T00:04:21Z |
| publishDate | 2023-06-01 |
| publisher | University of Tehran |
| record_format | Article |
| series | Journal of Chemical and Petroleum Engineering |
| spelling | doaj.art-9cef46f8f2c4407fa3a405e37b4b3fc32023-09-17T06:37:47ZengUniversity of TehranJournal of Chemical and Petroleum Engineering2423-673X2423-67212023-06-0157113314710.22059/JCHPE.2023.356505.1425Comparison and Optimization of Pyrolysis Bio-Oil Composition from Sewage Sludge and Spirulina MicroalgaeReza Hematkhah0https://orcid.org/0009-0009-8106-7218Ahmad Hallajisani1https://orcid.org/0000-0003-3793-9129Mohammad Samipourgiri2Department of Chemical Engineering, Faculty of Engineering, North Tehran branch, Islamic Azad University, Tehran, Iran.Biofuel Research Laboratory, Caspian Faculty of Engineering, College of Engineering, University of Tehran, Rezvanshar, Gilan, Iran.Department of Chemical Engineering, Faculty of Engineering, North Tehran branch, Islamic Azad University, Tehran, Iran.The abundant presence of spirulina microalgae and sewage sludge led to the researchers pay attention to recycling and economical conversion into valuable materials. This study investigated the simultaneous pyrolysis composition of two materials, spirulina microalgae and sewage sludge and also the factors affecting of the production of bio-oil from them. The effect of temperature, weight ratio of spirulina to SS, and the heating rate was investigated. Optimal conditions for pyrolysis was obtained at 519.3 °C, the weight ratio of 0.73 and heating rate of 17.9 °C/min and bio-oil production yield also was obtained 69.35%. The heat value of bio-oil was obtained at 25.52 MJ/kg and its energy efficiency was 66.3%. The results showed that with increasing in the temperature, the amount of aromatic substances that enhance the heat value were increased. Also, by directing the reaction to optimal conditions, the oxygenated and nitrogenous compounds detected in the bio-oil were reduced. The highest bio-oil yield was obtained at 69.09% and 450 °C, the weight ratio of (spirulina /SS) 0.5 and heating rate of 20 °C/min. The simultaneous combination of spirulina and SS increases the number of aromatic substances and decreases oxygenated and nitrogenous group spirulina in bio-oils.https://jchpe.ut.ac.ir/article_91934.htmlbio-oil comparisonheat valuemicroalgaepyrolysisspirulinasewage sludgeyield production |
| spellingShingle | Reza Hematkhah Ahmad Hallajisani Mohammad Samipourgiri Comparison and Optimization of Pyrolysis Bio-Oil Composition from Sewage Sludge and Spirulina Microalgae Journal of Chemical and Petroleum Engineering bio-oil comparison heat value microalgae pyrolysis spirulina sewage sludge yield production |
| title | Comparison and Optimization of Pyrolysis Bio-Oil Composition from Sewage Sludge and Spirulina Microalgae |
| title_full | Comparison and Optimization of Pyrolysis Bio-Oil Composition from Sewage Sludge and Spirulina Microalgae |
| title_fullStr | Comparison and Optimization of Pyrolysis Bio-Oil Composition from Sewage Sludge and Spirulina Microalgae |
| title_full_unstemmed | Comparison and Optimization of Pyrolysis Bio-Oil Composition from Sewage Sludge and Spirulina Microalgae |
| title_short | Comparison and Optimization of Pyrolysis Bio-Oil Composition from Sewage Sludge and Spirulina Microalgae |
| title_sort | comparison and optimization of pyrolysis bio oil composition from sewage sludge and spirulina microalgae |
| topic | bio-oil comparison heat value microalgae pyrolysis spirulina sewage sludge yield production |
| url | https://jchpe.ut.ac.ir/article_91934.html |
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