K
Konstantinos G. Kalogiannis
Researcher at Aristotle University of Thessaloniki
Publications - 49
Citations - 3479
Konstantinos G. Kalogiannis is an academic researcher from Aristotle University of Thessaloniki. The author has contributed to research in topics: Pyrolysis & Catalysis. The author has an hindex of 27, co-authored 46 publications receiving 2641 citations.
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Journal ArticleDOI
A study of lignocellulosic biomass pyrolysis via the pyrolysis of cellulose, hemicellulose and lignin
Stylianos D. Stefanidis,Konstantinos G. Kalogiannis,Eleni F. Iliopoulou,Chrysoula M. Michailof,Petros A. Pilavachi,Angelos A. Lappas +5 more
TL;DR: In this article, thermogravimetric (TG) analyses along with thermal and catalytic fast pyrolysis experiments of cellulose, hemicellulose, lignin and their mixtures were carried out in order to investigate their pyroolysis products and whether the prediction of the pyrolys behavior of a certain lignocellulosic biomass feedstock is possible, when its content in these three constituents is known.
Journal ArticleDOI
Catalytic upgrading of biomass pyrolysis vapors using transition metal-modified ZSM-5 zeolite
E.F. Iliopoulou,Stylianos D. Stefanidis,Konstantinos G. Kalogiannis,Andreas Delimitis,Angelos A. Lappas,Kostas S. Triantafyllidis +5 more
TL;DR: In this paper, an equilibrium, commercial diluted ZSM-5 catalyst was used as the base case, in comparison with a series of nickel (Ni) and cobalt (Co) modified variants at varying metal loading.
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In-situ upgrading of biomass pyrolysis vapors: Catalyst screening on a fixed bed reactor
Stylianos D. Stefanidis,Konstantinos G. Kalogiannis,Eleni F. Iliopoulou,Angelos A. Lappas,Petros A. Pilavachi +4 more
TL;DR: In-situ catalytic upgrading of biomass fast pyrolysis vapors was performed in a fixed bed bench-scale reactor at 500°C, for catalyst screening purposes, showing the most balanced performance having a moderate selectivity towards hydrocarbons, reducing undesirable compounds and producing organic liquid products at acceptable yields.
Journal ArticleDOI
Natural magnesium oxide (MgO) catalysts: A cost-effective sustainable alternative to acid zeolites for the in situ upgrading of biomass fast pyrolysis oil
Stylianos D. Stefanidis,Stamatia A. Karakoulia,Konstantinos G. Kalogiannis,E.F. Iliopoulou,Andreas Delimitis,H. Yiannoulakis,T. Zampetakis,Angelos A. Lappas,Kostas S. Triantafyllidis +8 more
TL;DR: In this article, the authors investigated low-cost, naturally derived basic MgO materials as catalysts for the catalytic fast pyrolysis of lignocellulosic biomass as alternatives to classical acidic zeolite catalysts.
Journal ArticleDOI
Pilot-scale validation of Co-ZSM-5 catalyst performance in the catalytic upgrading of biomass pyrolysis vapours
E.F. Iliopoulou,Stylianos D. Stefanidis,Konstantinos G. Kalogiannis,Antonios C. Psarras,Andreas Delimitis,Kostas S. Triantafyllidis,Angelos A. Lappas +6 more
TL;DR: In this article, the authors evaluated commercial ZSM-5 catalysts (diluted with a silica-alumina matrix) in the in situ upgrading of lignocellulosic biomass pyrolysis vapours and the validation of their bench-scale reactor performance in a pilot scale circulating fluidized bed (CFB), and further promoted with cobalt (Co, 5% wt%).