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153 results on '"Ferrari, Maria-Chiara"'

6. Zinc triazolate oxalate CALF-20 with platelet morphology and its PEBAX-based mixed matrix membranes for CO2/N2 separation.

Author

Jia, Qian, Lasseuguette, Elsa, Kaur, Harpreet, Naden, Aaron B., Ferrari, Maria-Chiara, and Wright, Paul A.

Subjects
CARBON sequestration, CRYSTAL morphology, MEMBRANE separation, OXALATES, BLOOD platelets
Abstract

CALF-20, [Zn2(1,2,4-triazolate)2(oxalate)] shows remarkable performance in post-combustion carbon capture, even under humid conditions1 but its reported crystal morphology hinders its applicability in mixed matrix membranes (MMMs). Here, a route to its preparation as platelets a few tens of nm thick is reported. These were incorporated into a PEBAX MH1567 polymer matrix and the resultant MMMs display improvement in CO2 permeability and CO2/N2 selectivity. [ABSTRACT FROM AUTHOR]

Published
2024
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11. Contributors

Author

Abbasi, Zahra, primary, Abdel Kodous, Mohamed Hamada, additional, Babbitt, Callie W., additional, Budd, Peter M., additional, Cheng, Zhen Lei, additional, Chung, Tai-Shung, additional, Coppens, Marc-Olivier, additional, Coronas, Joaquin, additional, Cseri, Levente, additional, Cui, Yue, additional, Danquah, Michael K., additional, Drioli, Enrico, additional, Ersöz, Arzu, additional, Fan, Xiaolei, additional, Fane, Anthony G., additional, Ferrari, Maria-Chiara, additional, Gai, Wen Xiao, additional, Galán-Martín, Ángel, additional, González-Garay, Andrés, additional, Guillén-Gosálbez, Gonzalo, additional, Hayler, John D., additional, Horvath, Istvan T., additional, Jeevanandam, Jaison, additional, Jiao, Yilai, additional, Johnson, Martin D., additional, Kappe, C. Oliver, additional, Keçili, Rüstem, additional, Kokado, Kenta, additional, Ladewig, Bradley P., additional, Lapkin, Alexei, additional, Lasseuguette, Elsa, additional, Limleamthong, Phantisa, additional, Lively, Ryan P., additional, Livingston, Andrew, additional, Ma, Yao, additional, Matsuyama, Kiyoshi, additional, Moghadam, Farhad, additional, Murugan, Chandran, additional, Naya, Masami, additional, Nunes, Suzana P., additional, Pal, Kaushik, additional, Park, Ho Bum, additional, Petit, Camille, additional, Pozo, Carlos, additional, Pradeep, Thalappil, additional, Roh, Ji Soo, additional, Sada, Kazuki, additional, Say, Rıdvan, additional, Schukraft, Giulia, additional, Sharma, Varsha, additional, Shin, Jae Eun, additional, Smith, Richard L., additional, Sundaramurthy, Anandhakumar, additional, Szekely, Gyorgy, additional, Tam, Kam C., additional, Trogadas, Panagiotis, additional, Trout, Bernhardt L., additional, Ushiki, Ikuo, additional, Vaccaro, Luigi, additional, Wan, Chun Feng, additional, Wang, Huanting, additional, Yılmaz, Ecevit, additional, Zhang, Fengyi, additional, Zhang, Xiwang, additional, and Zhang, Xiangliang, additional

Published
2020
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15. Watery stools and metabolic acidosis

Author

Ferrari, Maria Chiara, Miele, Luca, Guidi, Luisa, Rindi, Guido, Rocchi, Carlo, Castaldi, Paola, Alfieri, Sergio, Gasbarrini, Antonio, Grieco, Antonio, and Rapaccini, Gianlodovico

Published
2017
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23. Mixed Matrix Membranes Based on Torlon® and ZIF-8 for High-Temperature, Size-Selective Gas Separations

Author

Massachusetts Institute of Technology. Department of Chemical Engineering, De Pascale, Matilde, Benedetti, Francesco Maria, Lasseuguette, Elsa, Ferrari, Maria-Chiara, Papchenko, Kseniya, Degli Esposti, Micaela, Fabbri, Paola, De Angelis, Maria Grazia, Massachusetts Institute of Technology. Department of Chemical Engineering, De Pascale, Matilde, Benedetti, Francesco Maria, Lasseuguette, Elsa, Ferrari, Maria-Chiara, Papchenko, Kseniya, Degli Esposti, Micaela, Fabbri, Paola, and De Angelis, Maria Grazia

Abstract

Torlon® is a thermally and plasticization-resistant polyamide imide characterized by low gas permeability at room temperature. In this work, we aimed at improving the polymer performance in the thermally-enhanced He/CO2 and H2/CO2 separations, by compounding Torlon® with a highly permeable filler, ZIF-8, to fabricate Mixed Matrix Membranes (MMMs). The effect of filler loading, gas size, and temperature on the MMMs permeability, diffusivity, and selectivity was investigated. The He permeability increased by a factor of 3, while the He/CO2 selectivity decreased by a factor of 2, when adding 25 wt % of ZIF-8 at 65 °C to Torlon®; similar trends were observed for the case of H2. The MMMs permeability and size-selectivity were both enhanced by temperature. The behavior of MMMs is intermediate between the pure polymer and pure filler ones, and can be described with models for composites, indicating that such materials have a good polymer/filler adhesion and their performance could be tailored by acting on the formulation. The behavior observed is in line with previous investigations on MMMs based on glassy polymers and ZIF-8, in similar conditions, and indicates that ZIF-8 can be used as a polymer additive when the permeability is a controlling aspect, with a proper choice of loading and operative temperature.

Published
2022

26. A Multiscale Approach for Evaluating UTSA-16 Adsorbent for Post Combustion Carbon Capture

Author

Krishnamurthy, Shreenath, Mangano, Enzo, Ferrari, Maria-Chiara, Blom, Richard, Grande, Carlos, Friedrich, Daniel, Sarkisov, Lev, and Brandani, Stefano

Subjects
Vacuum swing adsorption (VSA), Zero length column (ZLC), UTSA-16, Energy penalty, Teknologi: 500 [VDP]
Abstract

UTSA-16 is considered as one of most promising Metal-Organic Frameworks (MOFs) for post combustion carbon capture in a vacuum swing adsorption (VSA) process. Current studies base their predictions on the equilibrium information for the crystalline material and assuming that the mass transfer is dominated by macropore diffusion. Performance of the real process depends not only on the equilibrium adsorption characteristics, but also on the morphology and mass transfer characteristics of the pellet. In this study, we use a series of complementary techniques to first characterize UTSA-16 pellets and develop a detailed understanding of the mass-transfer mechanisms in these pellets. Using the obtained data, we performed process simulations and optimization to explore performance of real UTSA-16 pellets in carbon capture VSA cycle. We have optimized a 4-step cycle with light product pressurization to identify operating conditions with minimum energy and maximum productivity subject to purity-recovery targets. Further, the performance of UTSA-16 was compared with that of the reference material Zeolite 13X.

Published
2021

37. Tailoring molecular interactions between microporous polymers in high performance mixed matrix membranes for gas separations

Author

Lau, Cher Hon, primary, Konstas, Kristina, additional, Doherty, Cara M., additional, Smith, Stefan J. D., additional, Hou, Rujing, additional, Wang, Huanting, additional, Carta, Mariolino, additional, Yoon, Heewook, additional, Park, Jaesung, additional, Freeman, Benny D., additional, Malpass-Evans, Richard, additional, Lasseuguette, Elsa, additional, Ferrari, Maria-Chiara, additional, McKeown, Neil B., additional, and Hill, Matthew R., additional

Published
2020
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39. Redefining the Robeson upper bounds for CO2/CH4 and CO2/N2 separations using a series of ultrapermeable benzotriptycene-based polymers of intrinsic microporosity

Author

Comesaña-Gándara, Bibiana, primary, Chen, Jie, additional, Bezzu, C. Grazia, additional, Carta, Mariolino, additional, Rose, Ian, additional, Ferrari, Maria-Chiara, additional, Esposito, Elisa, additional, Fuoco, Alessio, additional, Jansen, Johannes C., additional, and McKeown, Neil B., additional

Published
2019
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43. The synthesis, chain-packing simulation and long-term gas permeability of highly selective spirobifluorene-based polymers of intrinsic microporosity

Author

Bezzu, C. Grazia, primary, Carta, Mariolino, additional, Ferrari, Maria-Chiara, additional, Jansen, Johannes C., additional, Monteleone, Marcello, additional, Esposito, Elisa, additional, Fuoco, Alessio, additional, Hart, Kyle, additional, Liyana-Arachchi, T. P., additional, Colina, Coray M., additional, and McKeown, Neil B., additional

Published
2018
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47. Automated Analysis of ZLC Experiments: Fitting of Kinetic and Isotherm Parameters

Author

Friedrich, Daniel, Mangano, Enzo, Hu, Xiayi, Ferrari, Maria-Chiara, and Brandani, Stefano

Subjects
Parameter estimation, isotherm prediction, Adsorption, ZLC
Abstract

Here we present the combination of our adsorption process simulator with a hybrid optimisation strategy for the automated analysis of a series of ZLC experiments.The Zero Length Column (ZLC) method is an established technique for the measurement of the kinetic and equilibrium properties of adsorption systems. Briefly, in the ZLC method the desorption curve of a small amount of adsorbent previously equilibrated with a known gas mixture is measured. By changing the experimental conditions, i.e. flow rate of the purge gas, the system can be operated under equilibrium or kinetic control; thus equilibrium and kinetic properties can be investigated in the same series of experiments. The reliable measurements for fast and slow kinetics combined with the small required sample quantity (less than 10mg) make the ZLC method a very useful and flexible tool for kinetic and equilibrium measurements for a wide range of materials.In order to automate and improve the analysis of the experimental data we have applied our in-house adsorption simulator to the simulation of the ZLC system. The process simulation is built from units representing the separate parts of the system: feed, purge, zero length column and detector. This representation allows the explicit description of the ZLC and the surrounding parts of the system. For example, the dead volume of the system and the detector response are included through fitting of the blank experiments. The used full-scale column model facilitates the direct application of the estimated parameters in complex, large-scale PSA cycles. Furthermore, the column unit implements different adsorption isotherms, different mass transfer models as well as isothermal and non-isothermal models. Thus the simulator provides an accurate description of the dynamics in the ZLC system.By linking the ZLC simulation to a hybrid optimisation strategy (combining a global Multi-Objective Genetic Algorithm with a local optimisation routine) we generate an automated tool for the estimation of the kinetic and equilibrium parameters from several experimental runs. The optimisation algorithm tries to minimise the least square error between the experimental data and the simulation output. In the first step the parameters of the empty system, i.e. no adsorbent in the ZLC, are fitted with empty system experimental runs. Then in the second step only the kinetic and equilibrium parameters in the ZLC are fitted. The combination of the adsorption simulator and the hybrid optimisation allows us to fit the parameters with greater certainty compared to the previously used simplified analytical models. Specifically the simultaneous fitting of several experimental curves at different flow rates and temperatures provides a robust estimation for both the equilibrium and kinetic parameters of the adsorbent.The flexibility of the adsorption simulator, i.e. different kinetic and equilibrium models, allows the investigation of the dominant physical mechanisms. For example, the error in the parameter estimation from kinetically controlled zeolite 13X experiments using the single-site Langmuir isotherm is much larger than the error obtained using the dual-site Langmuir isotherm. Subsequent comparison of the fitted isotherms to the isotherm obtained from equilibrium controlled experiments shows that the large error for the single-site Langmuir fit corresponds to a large error in the fitted adsorption isotherm.

Published
2013

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