Simona Renda

@article{RENDA2024140221,

title = {CO2 methanation over open cell foams prepared via chemical conversion coating},

author = {Simona Renda and Marco Martino and Vincenzo Palma},

url = {https://www.sciencedirect.com/science/article/pii/S0959652623043792},

doi = {https://doi.org/10.1016/j.jclepro.2023.140221},

issn = {0959-6526},

year  = {2024},

date = {2024-01-01},

journal = {Journal of Cleaner Production},

volume = {434},

pages = {140221},

abstract = {In the framework of the CO2 utilization, and of the integration of renewable energy sources into the power generation scenario, the methanation reaction plays a key role, being the core of the power-to-gas, or power-to-X, processes. Structured catalysts are widely recognized for being particularly promising in exothermic processes, as they ensure a better thermal management of the heat generated within the system. In recent years, the application of metallic structures has spread. Nevertheless, the functionalization of these structures via washcoating procedure has several disadvantages. Herein, it is highlighted the potential of ceria chemical-conversion coating (CCC) as technique for the preparation of methanation catalysts, and optimize the Ni deposition procedure on such structures. In this work, the suitability of the obtained catalysts for CO2 methanation was evaluated in several operating conditions, obtaining CO2 conversion as high as 70 % below 400 °C with the most promising sample. In a first analysis, it was demonstrated that the catalysts prepared through the CCC technique can be applied in the CO2 methanation systems. In addition, through a kinetic analysis it was highlighted that the preparation method could be a key parameter for the selectivity of the process, driving the system towards a direct CO2 methanation or to the CO-path mechanism, therefore further studies should be performed to better explore this aspect.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{doi:10.1021/acs.iecr.3c03415,

title = {Air-Gap Membrane Distillation of Industrial Brine: Effect of Brine Concentration and Temperature},

author = {Patricia Ugarte and Simona Renda and Miguel Cano and Jorge Pérez and José Ángel Peña and Miguel Menéndez},

url = {https://doi.org/10.1021/acs.iecr.3c03415},

doi = {10.1021/acs.iecr.3c03415},

year  = {2024},

date = {2024-01-01},

journal = {Industrial & Engineering Chemistry Research},

volume = {63},

number = {3},

pages = {1546-1553},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{catal14070432,

title = {Dependence of the Fluidizing Condition on Operating Parameters for Sorption-Enhanced Methanol Synthesis Catalyst and Adsorbent},

author = {Simona Renda and Javier Lasobras and Jaime Soler and Javier Herguido and Miguel Menéndez},

url = {https://www.mdpi.com/2073-4344/14/7/432},

doi = {10.3390/catal14070432},

issn = {2073-4344},

year  = {2024},

date = {2024-01-01},

journal = {Catalysts},

volume = {14},

number = {7},

abstract = {The fluidization of two different solids was investigated by varying the temperature and pressure conditions and the fluidizing gas. The solids are a novel catalyst and a water sorbent that could be used to perform sorption-enhanced methanol synthesis; the operating conditions were selected accordingly to this process. The aim of this investigation was to find an expression for predicting the minimum fluidization conditions of a methanol synthesis catalyst and an adsorbent in the presence of their process stream and operating conditions. The findings of this study highlighted how umf (STP) decreases with a rise in temperature and increases with a rise in pressure, according to other works in the literature with different solids. Furthermore, the type of gas was found to influence the minimum fluidization velocity significantly. The experimental results agreed well with a theoretical expression of the minimum fluidization velocity adjusted for temperature, pressure, and viscosity. The choice of the expression for viscosity calculation in the case of gas mixtures was found to be of key importance. These results will be useful for researchers aiming to calculate the minimum fluidization velocity of a catalyst or other solids under reaction conditions using results obtained at ambient conditions with air or inert gas.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Extremely Low Temperatures for the Synthesis of Ethylene Oxide},

author = {B. A. De Liso and V. Palma and G. Pio and S. Renda and E. Salzano},

doi = {10.1021/acs.iecr.3c00402},

issn = {15205045},

year  = {2023},

date = {2023-01-01},

journal = {Industrial and Engineering Chemistry Research},

volume = {62},

issue = {18},

abstract = {The partial oxidation of ethylene in a methane atmosphere by pure oxygen is the most important industrial process for the synthesis of ethylene oxide. However, due to the high reactivity and exothermicity of the reaction system, the overall production is limited by kinetic and safety issues. The shift toward mild operative conditions can support the management of undesirable side reactions, enhancing the performance of the whole process. In the future, the direct use of liquefied ethylene and oxygen-enriched air, a low-cost waste in membrane-based nitrogen production, can provide convenient sources for heat removal as well as promote the use of innovative and more sustainable solutions. This work is focused on the experimental and numerical characterization of the oxidation of ethylene/methane/nitrogen/oxygen mixtures at different operative conditions, including extremely low temperatures, and oxidant compositions. To this aim, the laminar burning velocity and flammability limits were first measured utilizing the heat flux burner and compared with detailed kinetic mechanisms and experiments retrieved from the current literature. The reported data were adopted to identify the operational limits for innovative processes, paving the way to unlocking the potential of innovative chemistry at extreme conditions. Eventually, key performance indicators accounting for kinetic and safety aspects were defined to identify the most sustainable and convenient operative conditions.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Muccioli2023,

title = {NiCoAl-Based Monolithic Catalysts for the N2O Intensified Decomposition: A New Path towards the Microwave-Assisted Catalysis},

author = {O. Muccioli and E. Meloni and S. Renda and M. Martino and F. Brandani and P. Pullumbi and V. Palma},

doi = {10.3390/pr11051511},

issn = {22279717},

year  = {2023},

date = {2023-01-01},

journal = {Processes},

volume = {11},

issue = {5},

abstract = {Nitrous oxide (N2O) is considered the primary source of NOx in the atmosphere, and among several abatement processes, catalytic decomposition is the most promising. The thermal energy necessary for this reaction is generally provided from the external side of the reactor by burning fossil fuels. In the present work, in order to overcome the limits related to greenhouse gas emissions, high heat transfer resistance, and energy losses, a microwave-assisted N2O decomposition was studied, taking advantages of the microwave’s (MW) properties of assuring direct and selective heating. To this end, two microwave-susceptible silicon carbide (SiC) monoliths were layered with different nickel–cobalt–aluminum mixed oxides. Based on the results of several characterization analyses (SEM/EDX, BET, ultrasound washcoat adherence tests, Hg penetration technique, and TPR), the sample showing the most suitable characteristics for this process was reproduced in the appropriate size to perform specific MW-assisted catalytic activity tests. The results demonstrated that, by coupling this catalytic system with an opportunely designed microwave heated reactor, it is possible to reach total N2O conversion and selectivity of a highly concentrated N2O stream (50 vol%) at T = 550 °C, the same required in the conventionally heated process to remove N2O from a less concentrated gas stream (20 vol%).},

keywords = {},

pubstate = {published},

tppubtype = {article}

}