Theodoros Papalas


Theodoros Papalas

Theodoros Papalas received his Diploma in Chemical Engineering in 2018 with a GPA of 8.85 (Excellent, 3­rd in a class of 120 students). Since then he is a PhD student at the Laboratory of Petrochemical Technology in the Chemical Engineering Department under the supervision of Prof. Angeliki A. Lemonidou.
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+30 231 099 6283
His research focuses on the development of materials derived from low-cost raw materials (mineral ores or industrial wastes) for CO2 capture from industrial flue gases. Furthermore, CaO/NiO-based hybrid materials that operate as CO2 sorbents, reforming catalysts and oxygen transfer materials simultaneously are also studied for their potential application in H2 production through intensified steam methane reforming processes.

Selected publications of the LPT research team

Τ. Papalas, Α.Ν. Antzaras, Α.Α. Lemonidou, Evaluation of Calcium-Based Sorbents Derived from Natural Ores and Industrial Wastes for High Temperature CO2 Capture, Industrial & Engineering Chemistry Research, 59 (2020) 9926-9938

Τ. Papalas, Α.Ν. Antzaras, Α.Α. Lemonidou, Intensified steam methane reforming coupled with Ca-Ni looping in a dual fluidized bed reactor system: A conceptual design, Chemical Engineering Journal, 382 (2020) 122993

A.Ν. Antzara, A. Arregi, E. Heracleous, A.A. Lemonidou, In-depth evaluation of a ZrO2 promoted CaO-based CO2 sorbent in fluidized bed reactor tests, Chemical Engineering Journal, 333 (2018) 697–711

D. Ipsakis, E. Heracleous, L. Silvester, D.B. Bukur, A.A. Lemonidou, Reduction and Oxidation Kinetic Modeling of NiO-based Oxygen Transfer Materials Chemical Engineering Journal, 308 (2017) 840–852

A. Antzara, E. Heracleous, A.A. Lemonidou, Energy efficient sorption enhanced-chemical looping methane reforming process for high-purity H2 production: Experimental proof-of-concept, Applied Energy, 180 (2016) 457–471

Z. Skoufa, A. Antzara, E. Heracleous, A.A. Lemonidou, Evaluating the activity and stability of CaO–based sorbents for post–combustion CO2 capture in fixed–bed reactor experiments, Energy Procedia, 86 (2016) 171–180

A. Antzara, E. Heracleous, D.B. Bukur, A.A. Lemonidou, Thermodynamic analysis of hydrogen production via chemical looping steam methane reforming coupled with in situ CO2 capture, International Journal of Greenhouse Gas Control, 32 (2015) 115–128

A. Antzara, E. Heracleous, A.A. Lemonidou, Improving the stability of synthetic CaO–based CO2 sorbents by structural promoters, Applied Energy 156 (2015) 331–343
A. Antzara, E. Heracleous, A.A. Lemonidou, Development of CaO–based Mixed Oxides as Stable Sorbents for Post–Combustion CO2 Capture Via Carbonate Looping, Energy Procedia, 63 (2014) 2160–2169

S.D. Angeli, C.S. Martavaltzi, A.A. Lemonidou, Development of a novel-synthesized Ca-based CO2 sorbent for multicycle operation: Parametric study of sorption, Fuel, 127 (2014) 62–69

C.S. Martavaltzi, T. Pefkos, A.A. Lemonidou, Operational window of sorption enhanced steam reforming of methane over CaO-Ca12Al14O33, Industrial & Engineering Chemistry Research, 50(2) (2011) 539–545

C.S. Martavaltzi, A.A. Lemonidou, Hydrogen Production via Sorption Enhanced Reforming of Methane: Development of a novel hybrid material-reforming catalyst and CO2 sorbent, Chemical Engineering Science, 65(14) (2010) 4134–4140

C.S. Martavaltzi, E.P. Pampaka, E.S. Korkakaki, A.A. Lemonidou, Hydrogen production via steam reforming of methane with simultaneous CO­2 capture over CaO-Ca12Al14O33, Energy and Fuels, 24(4) (2010) 2589–2595

C.S. Martavaltzi, T. Pefkos, A.A. Lemonidou, Parametric study of the CaO–Ca12Al14O33 synthesis with respect to high CO2 sorption capacity and stability on multicycle operation, Industrial & Engineering Chemistry Research, 47(23) (2008) 9537–9543

C.S. Martavaltzi, A.A. Lemonidou, Development of new CaO based sorbent materials for CO2 removal at high temperature, Microporous and Mesoporous Materials, 110 (2008) 119–127