Open AccessUpgrading fuel potentials of waste biomass via hydrothermal carbonization
Author(s) -
Jelena Petrović,
Marija Simić,
Marija Mihajlović,
Marija Koprivica,
Marija Kojić,
Ivouić
Publication year - 2021
Publication title -
hemijska industrija
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.147
H-Index - 19
eISSN - 2217-7426
pISSN - 0367-598X
DOI - 10.2298/hemind210507025p
Subject(s) - hydrothermal carbonization , raw material , biomass (ecology) , pulp and paper industry , biofuel , heat of combustion , pomace , renewable energy , carbonization , carbon fibers , renewable fuels , bioenergy , fossil fuel , chemistry , waste management , materials science , combustion , organic chemistry , agronomy , food science , electrical engineering , adsorption , composite number , composite material , biology , engineering
In recent decades, massive exploitation of fossil fuels caused a growing demand for the production of energies from renewable sources. Hydrochar obtained from waste biomass via hydrothermal carbonization (HTC) possesses good potentials as a biofuel. Therefore, we performed HTC of corn cob, paulownia leaves, and olive pomace at different temperatures (180, 220, and 260oC). The main goal of this study was to comparatively evaluate the influence of HTC conditions on the structure and fuel characteristics of the obtained solids. The results showed that the yields of hydrochar decrease significantly with increasing temperature in all samples. The carbon content and higher heating value increased and reached the highest values in hydrochars obtained at 260?C, while the content of volatile matter decreased. Furthermore, the Van Krevelen diagram reveals that the transformation of feedstock to lignite-like products upon HTC was achieved. In this study, the results showed that processes of dehydration and decarboxylation during HTC provoke intensive biomass transformation and that hydrochars obtained at higher temperatures have significantly enhanced fuel properties and fewer volatiles compared to the feedstock.