Conversion of poultry wastes into energy feedstocks

In this study, conversion of wastes from poultry farming and industry into biochar and bio-oil via thermochemical processes was investigated. Fuel characteristics and chemical structure of biochars and bio-oils have been investigated using standard fuel analysis and spectroscopic methods. Biochars w...

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Bibliographic Details
Published in:Waste management (Elmsford) 2016-10, Vol.56, p.530-539
Main Authors: Kantarli, Ismail Cem, Kabadayi, Arzu, Ucar, Suat, Yanik, Jale
Format: Article
Language:English
Subjects:
Animal Husbandry
Animals
Biofuels - analysis
Biomass
Carbonization
Charcoal - analysis
Chickens
Fuels
Heating
Hot Temperature
Industrial Waste - analysis
Liquefaction
Meals
Poultry
Pyrolysis
Turkey
Waste Management - methods
Wastes
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Summary:In this study, conversion of wastes from poultry farming and industry into biochar and bio-oil via thermochemical processes was investigated. Fuel characteristics and chemical structure of biochars and bio-oils have been investigated using standard fuel analysis and spectroscopic methods. Biochars were produced from poultry litter through both hydrothermal carbonization (sub-critical water, 175-250°C) and pyrolysis over a temperature range between 250 and 500°C. In comparison to hydrothermal carbonization, pyrolysis at lower temperatures produced biochar with greater energy yield due to the higher mass yield. Biochars obtained by both processes were comparable to coal. Hydrothermal liquefaction of poultry meal at different temperatures (200-325°C) was conducted and compared to optimize its process conditions. Higher temperatures favored the formation of bio-crude oil, with a maximum yield of 35wt.% at 300°C. The higher heating values of bio-oils showed that bio-oil could be a potential source of synthetic fuels. However, elemental analysis demonstrated the high nitrogen content of bio-oils. Therefore, bio-oils obtained from hydrothermal liquefaction of poultry meal should be upgraded for utilization as a transport and heating fuel.
ISSN:0956-053X
1879-2456
DOI:10.1016/j.wasman.2016.07.019