Gianluca Greco

@article{Greco2022,

title = {Biomass-derived carbons physically activated in one or two steps for CH4/CO2 separation},

author = {Gianluca Greco and Rafael L. S. Canevesi and Christian Di Stasi and Alain Celzard and Vanessa Fierro and Joan Josep Manyà},

url = {https://linkinghub.elsevier.com/retrieve/pii/S0960148122004967},

doi = {10.1016/J.RENENE.2022.04.035},

issn = {0960-1481},

year  = {2022},

date = {2022-05-01},

urldate = {2022-05-01},

journal = {Renewable Energy},

volume = {191},

pages = {122--133},

publisher = {Pergamon},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Greco2021,

title = {Importance of pyrolysis temperature and pressure in the concentration of polycyclic aromatic hydrocarbons in wood waste-derived biochars},

author = {Gianluca Greco and María Videgain and Christian Di Stasi and Elisabet Pires and Joan Josep Manyà},

doi = {10.1016/J.JAAP.2021.105337},

issn = {0165-2370},

year  = {2021},

date = {2021-10-01},

journal = {Journal of Analytical and Applied Pyrolysis},

volume = {159},

pages = {105337},

publisher = {Elsevier},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Stasi2021,

title = {Wheat-Straw-Derived Activated Biochar as a Renewable Support of Ni-CeO2 Catalysts for CO2 Methanation},

author = {Christian Di Stasi and Simona Renda and Gianluca Greco and Belén González and Vincenzo Palma and Joan Josep Manyà},

url = {https://www.mdpi.com/2071-1050/13/16/8939/htm https://www.mdpi.com/2071-1050/13/16/8939},

doi = {10.3390/SU13168939},

year  = {2021},

date = {2021-08-01},

journal = {Sustainability 2021, Vol. 13, Page 8939},

volume = {13},

number = {16},

pages = {8939},

publisher = {Multidisciplinary Digital Publishing Institute},

abstract = {Ceria- and urea-doped activated biochars were used as support for Ni-based catalysts for CO2 methanation purposes. Different materials were prepared and tested to find the best catalytic formulation. After several CO2 methanation experiments—carried out at 0.35–1.0 MPa and 300–500 °C—it was found that the most suitable catalyst was a wheat-straw-derived activated biochar loaded with 30 wt.% of CeO2 and 20 wt.% of Ni. Using this catalyst, a CO2 conversion of 65% with a CH4 selectivity of 95% was reached at 1.0 MPa, 400 °C, and 13,200 h−1. From the study of the influence of the gas hourly space velocity, it was deduced that the most likely reaction mechanism was a reverse water–gas shift reaction, followed by CO hydrogenation. N-doping of the carbon support as an alternative to the use of ceria was also investigated. However, both CO2 conversion and selectivity toward CH4 values were clearly lower than those obtained for the ceria-containing catalyst cited above. The outcomes of this work indicate that a renewable biomass-derived support can be effectively employed in the catalytic conversion of CO2 to methane.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{DiStasi2021,

title = {Optimization of the operating conditions for steam reforming of slow pyrolysis oil over an activated biochar-supported Ni–Co catalyst},

author = {Christian Di Stasi and Marta Cortese and Gianluca Greco and Simona Renda and Belén González and Vincenzo Palma and Joan Josep Manyà},

url = {https://linkinghub.elsevier.com/retrieve/pii/S0360319921020450},

doi = {10.1016/j.ijhydene.2021.05.193},

issn = {03603199},

year  = {2021},

date = {2021-06-01},

journal = {International Journal of Hydrogen Energy},

publisher = {Pergamon},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Greco2020,

title = {Effects of slow-pyrolysis conditions on the products yields and properties and on exergy efficiency: A comprehensive assessment for wheat straw},

author = {Gianluca Greco and Christian Di Stasi and Filipe Rego and Belén González and Joan Josep Manyà},

doi = {10.1016/j.apenergy.2020.115842},

issn = {03062619},

year  = {2020},

date = {2020-12-01},

journal = {Applied Energy},

volume = {279},

pages = {115842},

publisher = {Elsevier Ltd},

abstract = {In the present work, the effects of the peak temperature (400–550 °C), absolute pressure (0.2–0.9 MPa), gas residence time (100–200 s) and reactor atmosphere (pure N2 or a mixture of CO2/N2) on the pyrolysis behavior of wheat straw pellets were investigated. A factorial design of experiments was adopted to assess the effects of the above-mentioned factors on the pyrolysis products, the exergy efficiencies related to them and to the overall process, and the heat required. The pyrolysis energy/exergy assessment is nowadays of great interest, for the scaling of the installations from lab-scale to commercial-scale. Results showed that, as expected, the peak temperature was the most influential factor on the yields and distributions of all the pyrolysis products as well as the char properties related to its potential stability and pore size distribution. However, an increased pressure enhanced the release of the gas species at the expense of the liquid products, without altering the final char yield. The char exergy efficiency was negatively affected by an increase in peak temperature, whereas its effect on the exergy efficiency of the produced gas resulted to be positive. It was also found that pressurized pyrolysis favored the exergy efficiency of the process, even at relatively high pyrolysis peak temperature. For the biomass feedstock and the range of operating conditions studied here, thermodynamic irreversibilities of the pyrolysis system were considerably lowered when the process was conducted at 550 °C, 0.9 MPa and using a mixture of CO2 and N2 as carrier gas at relatively short residence times.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}