Effect of operating conditions on hydrothermal liquefaction of Spirulina over Ni/TiO2 catalyst
| Autor: | Wenjia Wang, Renlong Liu, Wenying Tian, Zhaosen Yin, Xuewen Yi |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Spirulina (genus)
Environmental Engineering biology Renewable Energy Sustainability and the Environment Chemistry 020209 energy Bioengineering 02 engineering and technology General Medicine 010501 environmental sciences biology.organism_classification Mass spectrometry 01 natural sciences Catalysis Hydrothermal liquefaction Algae Elemental analysis Yield (chemistry) 0202 electrical engineering electronic engineering information engineering Waste Management and Disposal 0105 earth and related environmental sciences Holding time Nuclear chemistry |
| Zdroj: | Bioresource Technology. 263:569-575 |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/j.biortech.2018.05.014 |
| Popis: | In this study, the effects of reaction temperature, holding time, algae/water ratio and catalyst dosage on the yield and quality of bio-oil produced via the HTL of Spirulina were investigated. The maximum bio-oil yield (43.05 wt%) and energy recovery (ER) value (64.62%) were obtained at 260 °C for 30 min, with an algae/water ratio of 1/4 and a catalyst dosage of 5 wt%. The bio-oil samples were characterized by elemental analysis, Gas Chromatography–Mass Spectrometry (GC–MS), Fourier Transform Infrared (FI-IR), and Thermo-gravimetric analysis (TGA). Results indicated that higher heating values (HHVs) of bio-oils were in the range of 27.28–36.01 MJ/kg, and main compounds of bio-oil were amides, esters, nitriles, hydroperoxide and alkanes. Adding of the Ni/TiO2 catalyst can decrease the contents of oxygenated and nitrogenous compounds and promote the formation of desirable components such as esters and alkanes. |
| Databáze: | OpenAIRE |
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