TY  - CONF
AU  - Manić, Nebojš
AU  - Janković, Bojan
AU  - Veljković, Filip
AU  - Pijović, Milena
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7241
AB  - This paper considers possible uses of fruit-based waste for the production of valuable chemicals
and biofuel precursors through recycling by thermochemical conversion. Slow pyrolysis of goji
berry mesocarp as sugar-riched feedstock was investigated using simultaneous thermal analysis
measurements in non-isothermal conditions. This work announced that pyrolysis of goji berry
mesocarp represents a promising route to obtaining an important key platform chemical - 5-
hydroxymethylfurfural (5-HMF). To establish the process mechanism, two kinetic approaches
were used for kinetic parameters determination: first, Friedman’s and Vyazovkin’s model-free
(inverse) methods supported by numerical optimization of the process, and second, the modelbased
(direct) method. Model-free results showed a complex evolution of activation energy with
conversion, indicating a multi-step mechanism. It was found that autocatalytic dehydration of
fructose (in the presence of Lewis acids) is responsible for the production of 5-HMF at a low
heating rate (5.0 K/min) with a maximum 5-HMF theoretical yield of 63.20 %. Higher heating
rates (10.0 K/min and 15.0 K/min) trigger the fructose autogenesis behavior which opens the
transferability channel to glucose (substrate) engagement for 5-HMF theoretical high yield
production. It was revealed that differences between kinetic parameters are a consequence of the
change in the mechanism of glycosidic bond cleavage. The validity of the proposed reaction
mechanism scheme and accuracy of kinetic parameters was confirmed by modulated dynamic
predictions.
PB  - SDEWES - International Centre for Sustainable Development of Energy, Water and Environment Systems
PB  - Faculty of Mechanical Engineering and Naval Architecture, Zagreb
C3  - Book of Abstracts 18th Conference on Sustainable Development of Energy, Water and Environment Systems
T1  - The kinetic study of fruit processing waste pyrolysis for efficient production of  platform chemicals
IS  - SDEWES2023.0509
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7241
ER  - 

@conference{
author = "Manić, Nebojš and Janković, Bojan and Veljković, Filip and Pijović, Milena",
year = "2023",
abstract = "This paper considers possible uses of fruit-based waste for the production of valuable chemicals
and biofuel precursors through recycling by thermochemical conversion. Slow pyrolysis of goji
berry mesocarp as sugar-riched feedstock was investigated using simultaneous thermal analysis
measurements in non-isothermal conditions. This work announced that pyrolysis of goji berry
mesocarp represents a promising route to obtaining an important key platform chemical - 5-
hydroxymethylfurfural (5-HMF). To establish the process mechanism, two kinetic approaches
were used for kinetic parameters determination: first, Friedman’s and Vyazovkin’s model-free
(inverse) methods supported by numerical optimization of the process, and second, the modelbased
(direct) method. Model-free results showed a complex evolution of activation energy with
conversion, indicating a multi-step mechanism. It was found that autocatalytic dehydration of
fructose (in the presence of Lewis acids) is responsible for the production of 5-HMF at a low
heating rate (5.0 K/min) with a maximum 5-HMF theoretical yield of 63.20 %. Higher heating
rates (10.0 K/min and 15.0 K/min) trigger the fructose autogenesis behavior which opens the
transferability channel to glucose (substrate) engagement for 5-HMF theoretical high yield
production. It was revealed that differences between kinetic parameters are a consequence of the
change in the mechanism of glycosidic bond cleavage. The validity of the proposed reaction
mechanism scheme and accuracy of kinetic parameters was confirmed by modulated dynamic
predictions.",
publisher = "SDEWES - International Centre for Sustainable Development of Energy, Water and Environment Systems, Faculty of Mechanical Engineering and Naval Architecture, Zagreb",
journal = "Book of Abstracts 18th Conference on Sustainable Development of Energy, Water and Environment Systems",
title = "The kinetic study of fruit processing waste pyrolysis for efficient production of  platform chemicals",
number = "SDEWES2023.0509",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7241"
}

Manić, N., Janković, B., Veljković, F.,& Pijović, M.. (2023). The kinetic study of fruit processing waste pyrolysis for efficient production of  platform chemicals. in Book of Abstracts 18th Conference on Sustainable Development of Energy, Water and Environment Systems
SDEWES - International Centre for Sustainable Development of Energy, Water and Environment Systems.(SDEWES2023.0509).
https://hdl.handle.net/21.15107/rcub_machinery_7241

Manić N, Janković B, Veljković F, Pijović M. The kinetic study of fruit processing waste pyrolysis for efficient production of  platform chemicals. in Book of Abstracts 18th Conference on Sustainable Development of Energy, Water and Environment Systems. 2023;(SDEWES2023.0509).
https://hdl.handle.net/21.15107/rcub_machinery_7241 .

Manić, Nebojš, Janković, Bojan, Veljković, Filip, Pijović, Milena, "The kinetic study of fruit processing waste pyrolysis for efficient production of  platform chemicals" in Book of Abstracts 18th Conference on Sustainable Development of Energy, Water and Environment Systems, no. SDEWES2023.0509 (2023),
https://hdl.handle.net/21.15107/rcub_machinery_7241 .