Direct production of biodiesel via simultaneous esterification and transesterification of renewable oils using calcined blast furnace dust
| Autor: | Yi-Tong Wang, Jun-Guo Li, Zhen Fang, Ya-Nan Zeng, Li-Qun Jiang, Yu-Qing Zhang, Wen-Jie Cong, Jing-Long Liang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Acid value
Biodiesel 060102 archaeology Renewable Energy Sustainability and the Environment 020209 energy 06 humanities and the arts 02 engineering and technology Transesterification chemistry.chemical_compound chemistry Biofuel Biodiesel production 0202 electrical engineering electronic engineering information engineering 0601 history and archaeology Lead sulfide Saponification Nuclear chemistry Lead oxide |
| Zdroj: | Renewable Energy. 175:1001-1011 |
| ISSN: | 0960-1481 |
| DOI: | 10.1016/j.renene.2021.05.013 |
| Popis: | Direct production of biodiesel by both esterification and transesterification of renewable oils with acid value (AV) of 9.6-28.9 mg KOH/g using calcined blast furnace dust is studied. Blast furnace dust calcined at 600-700 degrees C obviously promotes efficient biodiesel production because of the crystal form transformation from lead sulfate particles in dust into active lead oxide, lead sulfide, and lead particles. It is found for the first time that lead oxide, lead sulfide and lead particles can resist saponification from fatty acids to catalyze raw renewable oils to biodiesel with catalytic activity order as follows: lead oxide > lead > lead sulfide > lead sulfate. Biodiesel production process is optimized according to an orthogonal design with biodiesel yield of 92 wt% obtained at AV of 9.6 mg KOH/g (82 wt% after 5 cycles). Biodiesel yield of 84 wt% is achieved at AV of 28.9 mg KOH/g with acidity of 0.18 mmol/g. Calcined blast furnace dust presents potential applications in the production of biodiesel from renewable oils with high AVs. (C) 2021 Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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