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Publication
Home trash biomass valorization by catalytic pyrolysis
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Advisor(s)
Abstract(s)
With the increase in population, large amounts of food waste are produced worldwide every day. These leftovers can be used as a source of lignocellulosic waste, oils, and polysaccharides for renewable fuels. In a fixed bed reactor, low-temperature catalytic pyrolysis was investigated using biomass gathered from domestic garbage. Thermogravimetry, under N2 flow, was used to assess the pyrolysis behavior of tea and coffee grounds, white potato, sweet potato, banana peels, walnut, almonds, and hazelnut shells. A mixture of biomass was also evaluated by thermogravimetry. Waste inorganic materials (marble, limestone, dolomite, bauxite, and spent Fluid Catalytic Cracking (FCC) catalyst) were used as catalysts (16.7% wt.) in the pyrolysis studies at 400 degrees C in a fixed bed reactor. Yields of bio-oil in the 22-36% wt. range were attained. All of the catalysts promoted gasification and a decrease in the bio-oil carboxylic acids content. The marble dust catalyst increased the bio-oil volatility. The results show that it is possible to valorize lignocellulosic household waste by pyrolysis using inorganic waste materials as catalysts.
Description
Keywords
Renewable energy Food waste Waste management Pyrolysis Inorganic waste catalysts
Pedagogical Context
Citation
Rijo, B., Dias, A. P. S., Jesus, N. de, & Pereira, M. F. (2023). Home trash biomass valorization by catalytic pyrolysis. Environments, 10(10), 1-15. https://doi.org/10.3390/environments10100186
Publisher
MDPI