Call:
Email: greco@unizar.es
Address: Escuela Politécnica Superior, Crta de Cuarte, s/n. E-22071 Huesca – Spain
ABOUT ME
Research Interests
Since I accomplished a Master’s degree in Chemical Engineering in March 2017, I oriented my trajectory to research, especially within the field of renewable energies and resource sustainability. A part of my final master project was carried out in a 5 months experience at Cranfield University (UK), where it was possible to enhance my knowledge about the Carbon Capture and Storage (CCS), with a particular focus on Calcium Looping applications. Later on, I spent 6 months working in Procter & Gamble company (R&D center, Brussels), working as visiting researcher on the process optimization addressed to polymer films production.
I am currently working at University of Zaragoza as a Marie Curie Early Stage Researcher in the GreenCarbon project, which is funded by the European Union in the framework of H2020 Marie Skłodowska Curie Actions – Innovative Training Networks (please visit http://greencarbon-etn.eu/ for more details). The main object of my PhD thesis is to give adding value to biomass residues by converting them through slow pyrolysis in carbon-based materials with the best properties for different applications, such as soil amendment and adsorption, among them. In light of that, my project aims to optimize the pyrolysis process in terms of operating conditions.
Projects
- GreenCarbon —Advanced carbon materials from biowaste: sustainable pathways to drive innovative green technologies (H2020-MSCA-ITN-2016-721991)
PUBLICATIONS
2020
Stasi, Christian Di; Greco, Gianluca; Canevesi, Rafael L S; Izquierdo, Teresa M; Fierro, Vanessa; Celzard, Alain; González, Belén; Manyà, Joan Josep
Influence of activation conditions on textural properties and performance of activated biochars for pyrolysis vapors upgrading Journal Article
In: Fuel, pp. 119759, 2020, ISSN: 00162361.
@article{DiStasi2020,
title = {Influence of activation conditions on textural properties and performance of activated biochars for pyrolysis vapors upgrading},
author = {Christian Di Stasi and Gianluca Greco and Rafael L S Canevesi and Teresa M Izquierdo and Vanessa Fierro and Alain Celzard and Belén González and Joan Josep Manyà},
doi = {10.1016/j.fuel.2020.119759},
issn = {00162361},
year = {2020},
date = {2020-12-01},
journal = {Fuel},
pages = {119759},
publisher = {Elsevier Ltd},
abstract = {The main aim of the present study is to provide a comprehensive assessment of the effects of process activation conditions on the textural properties of the resulting activated carbons, which were produced from wheat straw-derived biochar through chemical activation (with K2CO3 at different pressures and mass impregnation ratios) and physical activation (with CO2 at different temperatures and pressures). For chemically activated biochars, it was found that specific surface area and pore size distribution were both only positively affected by increasing the carbonate loading. However, physically activated biochars produced at the highest pressure and lowest temperature (1.0 MPa and 700 °C) had the highest surface areas and widest pore size distributions. The materials with the most appropriate textural properties were then tested as catalysts for steam and dry reforming of the aqueous phase of pyrolysis oil. The best catalytic performance (a total gas yield of 74% and a selectivity toward H2 of almost 40%) was observed for a physically activated biochar. This good performance was ascribed to the high availability of K0 on the catalyst surface, which could effectively promote the reactions involved in the upgrading process.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2019
Stasi, Christian Di; Alvira, Darío; Greco, Gianluca; González, Belén; Manyà, Joan Josep
Physically activated wheat straw-derived biochar for biomass pyrolysis vapors upgrading with high resistance against coke deactivation Journal Article
In: Fuel, vol. 255, pp. 115807, 2019, ISSN: 00162361.
@article{DiStasi2019,
title = {Physically activated wheat straw-derived biochar for biomass pyrolysis vapors upgrading with high resistance against coke deactivation},
author = {Christian Di Stasi and Darío Alvira and Gianluca Greco and Belén González and Joan Josep Manyà},
doi = {10.1016/j.fuel.2019.115807},
issn = {00162361},
year = {2019},
date = {2019-11-01},
journal = {Fuel},
volume = {255},
pages = {115807},
publisher = {Elsevier Ltd},
abstract = {Wheat straw-derived biochars (produced through slow pyrolysis at 500 °C and 0.1 MPa) were physically (with CO2) and chemically (with K2CO3) activated to assess their performance as renewable and low-cost catalysts for biomass pyrolysis vapors upgrading. Preliminary cracking experiments, which were carried out at 700 °C using a mixture of four representative model compounds, revealed a clear correlation between the volume of micropores of the catalyst and the total gas production, suggesting that physical activation up to a degree of burn-off of 40% was the most interesting activation route. Next, steam reforming experiments were conducted using the most microporous material to analyze the effect of both the bed temperature and gas hourly space velocity (GHSV) on the total gas production. The results showed a strong dependence between the bed temperature and the total gas production, with the best result obtained at the highest temperature (750 °C). On the other hand, the change in GHSV led to minor changes in the total gas yield, with a maximum achieved at 14500 h−1. Under the best operating conditions deduced in the previous stages, the addition of CO2 into the feed gas stream (partial pressure of 20 kPa) resulted in a total gas production of 98% with a H2/CO molar ratio of 2.16. This good result, which was also observed during the upgrading of the aqueous phase of a real biomass pyrolysis oil, was ascribed to the relatively high coke gasification rate, which refresh the active surface area preventing deactivation by coke deposition.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}