期刊
BIOMASS & BIOENERGY
卷 154, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biombioe.2021.106233
关键词
Biofuel; Fatty acids; Biosolids; Pyrolysis; Desulphurization
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC) [RGPIN 298352-2013]
- Mitacs Canada [MI MA IT05367]
- BioFuelNet Canada [NCEBFNC 6F]
- Agriculture and Agri-Food Canada's Canadian Agricultural Partnership [Bressler AgriScience Cluster project]
- Forge Hydrocarbons Inc.
This study successfully achieved desulfurization of pyrolytic oils with high sulfur content produced from biosolids through the evaluation of various methods, reaching a final sulfur concentration of 15 +/- 4 ppm.
Biosolids can be incorporated as a water replacement into a two-stage thermal process for biofuel production from brown greases, significantly reducing the overall environmental impact of the process. Unfortunately, the use of biosolids resulted in an appreciable amount of sulphur in the pyrolytic oils produced in the final stage of the process. Here, we first evaluated the relationship between the sulphur content of fatty acids pyrolysis liquid products and pyrolytic conditions. Afterwards, we evaluated the sulphur removal efficiency of several approaches such as distillation, extraction and adsorption. Through a combination of distillation and liquid-liquid extraction, we achieved a desulphurization of up to 95% reaching a final sulphur concentration of 15 +/- 4 ppm.
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