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Bryukhanov IA, Rybakov AA, Larin AV. Carbonate-Promoted Drift of Alkali Cations in Small Pore Zeolites: Ab Initio Molecular Dynamics Study of CO 2 in NaKA Zeolite. J Phys Chem Lett 2019; 10:2191-2195. [PMID: 30978026 DOI: 10.1021/acs.jpclett.9b00519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
An effect of deblocking of small size (8R, D8R) pores in zeolites due to cation drift is analyzed by using ab initio molecular dynamics (AIMD) at the PBE-D2/PAW level. The effect of carbonate and hydrocarbonate species on the carbon dioxide uptake in NaKA zeolite is demonstrated. It is shown that a hydrocarbonate or carbonate anion can form strong complexes with K+ cation and withdraw it from the 8R window, so that the probability of CO2 diffusion through 8R increases. For the first time, correlations between cationic and HCO3-/CO32- positions are demonstrated in favor of their significant interaction leading to the cationic drift from 8R windows. This phenomenon explains a nonzero CO2 adsorption in narrow pore zeolites upon high Na/K exchange. In a gas mixture, such deblocking effect reduces the separation factor because of the possible passage of both components through the plane of partly open 8R windows.
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Affiliation(s)
- Ilya A Bryukhanov
- Institute of Mechanics , Lomonosov Moscow State University , Moscow 119192 , Russia
- Mechanical Engineering Research Institute of the RAS , Moscow 119334 , Russia
| | - Andrey A Rybakov
- Department of Chemistry , Lomonosov Moscow State University , Moscow 119991 , Russia
| | - Alexander V Larin
- Department of Chemistry , Lomonosov Moscow State University , Moscow 119991 , Russia
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Combined influence of alkaline earth metals and CO2 on performance of hierarchical zeolite Beta in n-hexane isomerization. APPLIED PETROCHEMICAL RESEARCH 2018. [DOI: 10.1007/s13203-018-0208-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Vitillo JG, Fjermestad T, D’Amore M, Milanesio M, Palin L, Ricchiardi G, Bordiga S. On the structure of superbasic (MgO)n sites solvated in a faujasite zeolite. Phys Chem Chem Phys 2018; 20:18503-18514. [DOI: 10.1039/c8cp01788c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Theory and experiment reveal the structure of magnesium oxide nanoclusters in a superbasic faujasite zeolite.
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Affiliation(s)
- Jenny G. Vitillo
- Department of Chemistry
- Chemical Theory Center, and Minnesota Supercomputing Institute
- University of Minnesota
- Minneapolis
- USA
| | - Torstein Fjermestad
- Department of Chemistry and NIS Interdepartment Centre
- University of Turin
- 10125 Torino
- Italy
| | - Maddalena D’Amore
- Department of Chemistry and NIS Interdepartment Centre
- University of Turin
- 10125 Torino
- Italy
| | | | - Luca Palin
- Nova Res s.r.l
- Novara
- Italy
- Dipartimento di Scienze e Innovazione Tecnologica
- Università del Piemonte Orientale
| | - Gabriele Ricchiardi
- Department of Chemistry and NIS Interdepartment Centre
- University of Turin
- 10125 Torino
- Italy
| | - Silvia Bordiga
- Department of Chemistry and NIS Interdepartment Centre
- University of Turin
- 10125 Torino
- Italy
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Artz J, Müller TE, Thenert K, Kleinekorte J, Meys R, Sternberg A, Bardow A, Leitner W. Sustainable Conversion of Carbon Dioxide: An Integrated Review of Catalysis and Life Cycle Assessment. Chem Rev 2017; 118:434-504. [PMID: 29220170 DOI: 10.1021/acs.chemrev.7b00435] [Citation(s) in RCA: 888] [Impact Index Per Article: 126.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
CO2 conversion covers a wide range of possible application areas from fuels to bulk and commodity chemicals and even to specialty products with biological activity such as pharmaceuticals. In the present review, we discuss selected examples in these areas in a combined analysis of the state-of-the-art of synthetic methodologies and processes with their life cycle assessment. Thereby, we attempted to assess the potential to reduce the environmental footprint in these application fields relative to the current petrochemical value chain. This analysis and discussion differs significantly from a viewpoint on CO2 utilization as a measure for global CO2 mitigation. Whereas the latter focuses on reducing the end-of-pipe problem "CO2 emissions" from todays' industries, the approach taken here tries to identify opportunities by exploiting a novel feedstock that avoids the utilization of fossil resource in transition toward more sustainable future production. Thus, the motivation to develop CO2-based chemistry does not depend primarily on the absolute amount of CO2 emissions that can be remediated by a single technology. Rather, CO2-based chemistry is stimulated by the significance of the relative improvement in carbon balance and other critical factors defining the environmental impact of chemical production in all relevant sectors in accord with the principles of green chemistry.
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Affiliation(s)
- Jens Artz
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University , Worringerweg 2, Aachen 52074, Germany
| | - Thomas E Müller
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University , Worringerweg 2, Aachen 52074, Germany
| | - Katharina Thenert
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University , Worringerweg 2, Aachen 52074, Germany
| | - Johanna Kleinekorte
- Chair of Technical Thermodynamics, RWTH Aachen University , Schinkelstrasse 8, Aachen 52056, Germany
| | - Raoul Meys
- Chair of Technical Thermodynamics, RWTH Aachen University , Schinkelstrasse 8, Aachen 52056, Germany
| | - André Sternberg
- Chair of Technical Thermodynamics, RWTH Aachen University , Schinkelstrasse 8, Aachen 52056, Germany
| | - André Bardow
- Chair of Technical Thermodynamics, RWTH Aachen University , Schinkelstrasse 8, Aachen 52056, Germany
| | - Walter Leitner
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University , Worringerweg 2, Aachen 52074, Germany.,Max-Planck-Institute for Chemical Energy Conversion , Stiftstrasse 34-36, Mülheim an der Ruhr 45470, Germany
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Itadani A, Oda A, Torigoe H, Ohkubo T, Sato M, Kobayashi H, Kuroda Y. Material Exhibiting Efficient CO2 Adsorption at Room Temperature for Concentrations Lower Than 1000 ppm: Elucidation of the State of Barium Ion Exchanged in an MFI-Type Zeolite. ACS APPLIED MATERIALS & INTERFACES 2016; 8:8821-8833. [PMID: 26990497 DOI: 10.1021/acsami.6b00909] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Carbon dioxide (CO2) gas is well-known as a greenhouse gas that leads to global warming. Many efforts have been made to capture CO2 from coal-fired power plants, as well as to reduce the amounts of excess CO2 in the atmosphere to around 400 ppm. However, this is not a simple task, particularly in the lower pressure region than 1000 ppm. This is because the CO2 molecule is chemically stable and has a relatively low reactivity. In the present study, the CO2 adsorption at room temperature on MFI-type zeolites exchanged with alkaline-earth-metal ions, with focus on CO2 concentrations <1000 ppm, was investigated both experimentally and by calculation. These materials exhibited a particularly efficient adsorption capability for CO2, compared with other presented samples, such as the sodium-form and transition-metal ion-exchanged MFI-type zeolites. Ethyne (C2H2) was used as a probe molecule. Analyses were carried out with IR spectroscopy and X-ray absorption, and provided significant information regarding the presence of the M(2+)-O(2-)-M(2+) (M(2+): alkaline-earth-metal ion) species formed in the samples. It was subsequently determined that this species acts as a highly efficient site for CO2 adsorption at room temperature under very low pressure, compared to a single M(2+) species. A further advantage is that this material can be easily regenerated by a treatment, e.g., through the application of the temperature swing adsorption process, at relatively low temperatures (300-473 K).
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Affiliation(s)
- Atsushi Itadani
- Department of Chemistry, Graduate School of Natural Science and Technology, Okayama University , 3-1-1 Tsushima, Kita-ku, Okayama 700-8530, Japan
- Graduate School of Science and Technology, Niigata University , 8050 Ikarashi, 2-no-cho, Nishi-ku, Niigata 950-2181, Japan
| | - Akira Oda
- Department of Chemistry, Graduate School of Natural Science and Technology, Okayama University , 3-1-1 Tsushima, Kita-ku, Okayama 700-8530, Japan
- Precursory Research for Embryonic Science and Technology (PREST), Japan Science and Technology Agency (JST) , 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Hiroe Torigoe
- Department of Chemistry, Graduate School of Natural Science and Technology, Okayama University , 3-1-1 Tsushima, Kita-ku, Okayama 700-8530, Japan
| | - Takahiro Ohkubo
- Department of Chemistry, Graduate School of Natural Science and Technology, Okayama University , 3-1-1 Tsushima, Kita-ku, Okayama 700-8530, Japan
| | - Mineo Sato
- Department of Chemistry and Chemical Engineering, Niigata University , 8050 Ikarashi, 2-no-cho, Nishi-ku, Niigata 950-2181, Japan
| | - Hisayoshi Kobayashi
- Department of Chemistry and Materials Technology, Kyoto Institute of Technology , Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Yasushige Kuroda
- Department of Chemistry, Graduate School of Natural Science and Technology, Okayama University , 3-1-1 Tsushima, Kita-ku, Okayama 700-8530, Japan
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