Effect of Wet Torrefaction on Thermal Decomposition Behavior of Microalga Chlorella vulgaris ESP-31
| Autor: | Jo Shu Chang, Wei Hsin Chen, Herng Kuang Sheen, Shih Cheng Lin, Quang-Vu Bach |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Thermogravimetric analysis
Waste management 020209 energy Thermal decomposition Chlorella vulgaris chemistry.chemical_element 02 engineering and technology 010501 environmental sciences Combustion Torrefaction 01 natural sciences Nitrogen Chemical engineering chemistry 0202 electrical engineering electronic engineering information engineering Char Pyrolysis 0105 earth and related environmental sciences |
| Zdroj: | Energy Procedia. 105:206-211 |
| ISSN: | 1876-6102 |
| DOI: | 10.1016/j.egypro.2017.03.303 |
| Popis: | In this work, thermal decompositions of wet torrefied microalga during pyrolysis and combustion are investigated. Microalga Chlorella vulgaris ESP-31 was first subjected to wet torrefaction with microwave-assisted heating. Then, the thermal decompositions of the raw and torrefied microalgae are studied by means of a thermogravimetric analyzer in nitrogen and synthetic air to simulate pyrolysis and combustion process, respectively. The results show that carbohydrate and protein are degraded to some extent during WT. In addition, thermal reactivity of lipid is also changed after WT. The changes in the microalgal composition affect the intensity and location of the corresponding peaks during pyrolysis and combustion. Moreover, the char produced from the raw microalga is more reactive and less stable than those from the torrefied microlagae. |
| Databáze: | OpenAIRE |
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