Thermal Behavior of Waste-derived Fuels and Determination of Optimum Mixture Ratio for Gasification

Yıl 2018, Cilt: 2 Sayı: 2, 1 - 7, 01.12.2018

Atakan Öngen Emine Elmaslar Özbaş Nazlıcan Karabağ Hüseyin Kurtuluş Özcan Serdar Aydın Emirhan Kaya

Öz

The study focused on
determination of thermal behavior of waste-derived fuel under air and air-free
conditions. Thermochemical processes are commonly used as waste management
options in order to produce energy and minimize the amount of solid wastes. Since
the population all over the world is rising, the general concern becomes to
find alternative ways to manage all types of waste in an economic manner as
increasing the process efficiencies. Treatment sludge, with its complex matrix,
needs special attention to prevent environment from its adverse effects in case
any contamination. The main idea in this paper is to increase energy content of
waste-derived fuel by mixing solid and liquid wastes. As a solid waste,
treatment sludge (raw sludge) from a domestic wastewater treatment facility was
selected. Waste cooking oil (used oil) was used as liquid form to increase
calorific value of waste mixture before gasification experiments. Elemental
carbon content of raw sludge increased from 27% (mass) to 32% and 37% after
preparing a proportion of 1/5 oil/sludge and 2/5 oil/sludge, respectively.
Thermochemical behavior of those mixtures were analyzed by Thermal Gravimetric
Analysis (TGA) technique. Optimum proportion for gasification of waste-derived
fuel was determined as 40%, which also prevents the mixture to behave like a
liquid due to viscosity. Syngas had a calorific value of approximately  2700 kcal/m³.

Anahtar Kelimeler

Gasification, Energy, Waste-to-Energy, Syngas

Kaynakça

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