1
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Nikolopoulos N, Parker LA, Wickramasinghe A, van Veenhuizen O, Whiting G, Weckhuysen BM. Addition of Pore-Forming Agents and Their Effect on the Pore Architecture and Catalytic Behavior of Shaped Zeolite-Based Catalyst Bodies. CHEMICAL & BIOMEDICAL IMAGING 2023; 1:40-48. [PMID: 37122831 PMCID: PMC10131264 DOI: 10.1021/cbmi.2c00009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/04/2023] [Accepted: 02/08/2023] [Indexed: 05/02/2023]
Abstract
Porous materials, such as solid catalysts, are used in various chemical reactions in industry to produce chemicals, materials, and fuels. Understanding the interplay between pore architecture and catalytic behavior is of great importance for synthesizing a better industrial-grade catalyst material. In this study, we have investigated the modification of the pore architecture of zeolite-based alumina-bound shaped catalyst bodies via the addition of different starches as pore-forming agents. A combination of microscopy techniques allowed us to visualize the morphological changes induced and make a link between pore architecture, molecular transport, and catalytic performance. As for the catalytic performance in the methanol-to-hydrocarbons (MTH) reaction, pore-forming agents resulted in up to ∼12% higher conversion, an increase of 74% and 77% in yield (14% and 13% compared to 8.6% and 7.7% of the reference sample in absolute yields) toward ethylene and propylene, respectively, and an improved lifetime of the catalyst materials.
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2
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Zabihpour A, Ahmadpour J, Yaripour F. Strategies to control reversible and irreversible deactivation of ZSM-5 zeolite during the conversion of methanol to propylene (MTP): a review. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2023.118639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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3
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Chu R, Yang B, Zhou Y, Wu J, Li P, Dai M, Meng X, Li X, Li W, Wu G, Wang C. Effect of different SAPO-34 film thickness on coke resistance performance of SAPO-34/ZSM-5/quartz film in MTA reaction. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2023.104819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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4
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One-Step Synthesis of High-Silica ZSM-5 Zeolite with Less Internal Silicon Hydroxyl Groups: Highly Stable Catalyst for Methanol to Propene Reaction. Catal Letters 2022. [DOI: 10.1007/s10562-021-03796-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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5
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Medeiros-Costa IC, Dib E, Nesterenko N, Dath JP, Gilson JP, Mintova S. Silanol defect engineering and healing in zeolites: opportunities to fine-tune their properties and performances. Chem Soc Rev 2021; 50:11156-11179. [PMID: 34605833 DOI: 10.1039/d1cs00395j] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Zeolites have been game-changing materials in oil refining and petrochemistry over the last 60 years and have the potential to play the same role in the emerging processes of the energy and environmental transition. Although zeolites are crystalline inorganic solids, their structures are not perfect and the presence of defect sites - mainly Brønsted acid sites and silanols - influences their thermal and chemical resistance as well as their performances in key areas such as catalysis, gas and liquid separations and ion-exchange. In this paper, we review the type of defects in zeolites and the characterization techniques used for their identification and quantification with the focus on diffraction, spectroscopic and modeling approaches. More specifically, throughout the review, we will focus on silanol (Si-OH) defects located within the micropore structure and/or on the external surface of zeolites. The main approaches applied to engineer and heal defects and their consequences on the properties and applications of zeolites in catalysis and separation processes are highlighted. Finally, the challenges and opportunities of silanol defect engineering in tuning the properties of zeolites to meet the requirements for specific applications are presented.
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Affiliation(s)
- Izabel C Medeiros-Costa
- Laboratoire Catalyse et Spectrochimie (LCS), Normandie University, ENSICAEN, CNRS, 6 boulevard du Marechal Juin, 14050 Caen, France. .,Total Research and Technology Feluy, B-7181 Seneffe, Belgium
| | - Eddy Dib
- Laboratoire Catalyse et Spectrochimie (LCS), Normandie University, ENSICAEN, CNRS, 6 boulevard du Marechal Juin, 14050 Caen, France.
| | | | | | - Jean-Pierre Gilson
- Laboratoire Catalyse et Spectrochimie (LCS), Normandie University, ENSICAEN, CNRS, 6 boulevard du Marechal Juin, 14050 Caen, France.
| | - Svetlana Mintova
- Laboratoire Catalyse et Spectrochimie (LCS), Normandie University, ENSICAEN, CNRS, 6 boulevard du Marechal Juin, 14050 Caen, France.
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6
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Metal-doped high silica ZSM-5 nanocatalyst for efficient conversion of plastic to value-added hydrocarbons. Polym Degrad Stab 2021. [DOI: 10.1016/j.polymdegradstab.2021.109653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Removal of Neutral Red Dye via Electro-Fenton Process: A Response Surface Methodology Modeling. Electrocatalysis (N Y) 2021. [DOI: 10.1007/s12678-021-00640-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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Jia H, Du T, Fang X, Gong H, Qiu Z, Li Y, Wang Y. Synthesis of Template-Free ZSM-5 from Rice Husk Ash at Low Temperatures and Its CO 2 Adsorption Performance. ACS OMEGA 2021; 6:3961-3972. [PMID: 33585773 PMCID: PMC7876867 DOI: 10.1021/acsomega.0c05842] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
In this paper, a green synthesis method for ZSM-5 zeolite is explored to reduce the synthesis cost, environmental hazard, and reaction temperatures. For the ZSM-5 samples prepared at low temperatures, the influence of factors such as the hydrothermal temperature, crystallization time, and the number of seeds is systematically investigated. The adsorption isotherm of CO2 is used for fitting analysis of adsorption models and determination of the adsorption selectivity. The results show that the best one among the three samples presents the highest CO2 adsorption capacity of 2.39 mmol/g at 273 K and 15 bar. It is prepared with a hydrothermal temperature of 393 K, crystallization time of 7 days, and a seed crystal of 1 wt %. The dual-site Langmuir model can well describe the experimental data, indicating that double adsorption sites rather than the simple single-layer adsorption are dominant in samples. As the pressure increases, the adsorption capacity calculated by the model is much lower than the actual value with a deviation index of 12.5%. At a pressure of 1 bar, the optimal selectivity is attained with sample L-20, viz., CO2/N2 of 34.3 and CO2/O2 of 70.2. The green synthesis method reported in this research can be used to successfully prepare ZSM-5 zeolite, and it shows excellent CO2 adsorption performance. In addition, the use of low-cost raw materials and template-free synthesis methods will facilitate the large-scale application of green synthesis processes in the future.
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Affiliation(s)
- He Jia
- State Environmental
Protection
Key Laboratory of Eco-Industry, School of Metallurgy, Northeastern University, Shenyang 110819, China
| | - Tao Du
- State Environmental
Protection
Key Laboratory of Eco-Industry, School of Metallurgy, Northeastern University, Shenyang 110819, China
| | - Xin Fang
- State Environmental
Protection
Key Laboratory of Eco-Industry, School of Metallurgy, Northeastern University, Shenyang 110819, China
| | - He Gong
- State Environmental
Protection
Key Laboratory of Eco-Industry, School of Metallurgy, Northeastern University, Shenyang 110819, China
| | - Ziyang Qiu
- State Environmental
Protection
Key Laboratory of Eco-Industry, School of Metallurgy, Northeastern University, Shenyang 110819, China
| | - Yingnan Li
- State Environmental
Protection
Key Laboratory of Eco-Industry, School of Metallurgy, Northeastern University, Shenyang 110819, China
| | - Yisong Wang
- State Environmental
Protection
Key Laboratory of Eco-Industry, School of Metallurgy, Northeastern University, Shenyang 110819, China
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9
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Zhokh AA, Trypolskyi AI, Gritsenko VI, Serebrii TG, Strizhak PE. High-performance composite H-ZSM-5/alumina catalyst for the methanol-to-ethylene conversion. CHEM ENG COMMUN 2021. [DOI: 10.1080/00986445.2021.1875217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Alexey A. Zhokh
- L.V. Pisarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Andrey I. Trypolskyi
- L.V. Pisarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Valentina I. Gritsenko
- L.V. Pisarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Tamila G. Serebrii
- L.V. Pisarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Peter E. Strizhak
- L.V. Pisarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
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Han S, Huang R, Chen S, Wang Z, Jiang N, Park SE. Hierarchical Mg/ZSM-5 catalysts for methanol-to-propylene reaction via one-step acid treatment. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-020-04340-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Rahimi S, Rostamizadeh M. Novel Fe/B-ZSM-5 nanocatalyst development for catalytic cracking of plastic to valuable products. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.01.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Dai C, Du K, Chen Z, Chen H, Guo X, Ma X. Synergistic Catalysis of Multi-Stage Pore-Rich H-BZSM-5 and Zn-ZSM-5 for the Production of Aromatic Hydrocarbons from Methanol via Lower Olefins. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c05225] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chengyi Dai
- School of Chemical Engineering, Northwest University, Xi’an 710069, China
- International Science & Technology Cooperation Base for Clean Utilization of Hydrocarbon Resources, Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy, Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi, Northwest University, Xi’an 710069, China
| | - Kang Du
- School of Chemical Engineering, Northwest University, Xi’an 710069, China
| | - Zhongshun Chen
- School of Chemical Engineering, Northwest University, Xi’an 710069, China
| | - Huiyong Chen
- School of Chemical Engineering, Northwest University, Xi’an 710069, China
- International Science & Technology Cooperation Base for Clean Utilization of Hydrocarbon Resources, Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy, Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi, Northwest University, Xi’an 710069, China
| | - Xinwen Guo
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xiaoxun Ma
- School of Chemical Engineering, Northwest University, Xi’an 710069, China
- International Science & Technology Cooperation Base for Clean Utilization of Hydrocarbon Resources, Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy, Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi, Northwest University, Xi’an 710069, China
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Beheshti MS, Ahmadpour J, Behzad M, Arabi H. Preparation of hierarchical H-[B]-ZSM-5 zeolites by a desilication method as a highly selective catalyst for conversion of methanol to propylene. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2020. [DOI: 10.1007/s43153-020-00075-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Roohollahi H, Halladj R, Askari S. Catalytic Longevity of Hierarchical SAPO-34/AlMCM-41 Nanocomposite Molecular Sieve In Methanol-to-Olefins Process. Comb Chem High Throughput Screen 2020; 24:521-533. [PMID: 32342811 DOI: 10.2174/1386207323666200428092404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 02/27/2020] [Accepted: 03/05/2020] [Indexed: 11/22/2022]
Abstract
INTRODUCTION SAPO-34/AlMCM-41, as a hierarchical nanocomposite molecular sieve was prepared by sequential hydrothermal and dry-gel methods studied for catalytic conversion of methanol to light olefins. Pure AlMCM-41, SAPO-34, and their physical mixture were also produced and catalytically compared. Physicochemical properties of materials were mainly investigated using XRD, N2 isothermal adsorption-desorption, FESEM, FT-IR, NH3-TPD, and TG/DTG/DTA techniques. METHODS Micro-meso hierarchy of prepared composite was demonstrated by XRD and BET analyses. Catalytic performance of materials illustrated that the methanol conversion of the prepared composite was about 98% for 120 min, showing a higher activity than the other catalysts. The initial reaction selectivity to light olefins of the composite was also comparable with those for the other catalysts. Furthermore, the results revealed that SAPO-34/AlMCM-41 preparation decreased the concentration and strength of active acid sites of the catalyst which could beneficially affect the deposition of heavy molecular products on the catalyst. However, as observed, the prepared composite was deactivated in olefins production faster than pure SAPO-34. RESULTS The small mean pore diameter of composite could be mainly responsible for its pore blockage and higher deactivation rate. Meanwhile, since the SAPO-34 prepared by dry-gel method had inherently high mesoporosity, the AlMCM-41 introduction did not promote the molecular diffusion in the composite structure. CONCLUSION The coke content was found 15.5% for deactivated composite smaller than that for the SAPO- 34 catalyst which could be due to the pore blockage and deactivation of the composite in a shorter period.
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Affiliation(s)
- Hossein Roohollahi
- Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), P.O. Box 15875- 4413, Tehran, Iran
| | - Rouein Halladj
- Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), P.O. Box 15875- 4413, Tehran, Iran
| | - Sima Askari
- Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, P.O. Box 14515-775, Tehran, Iran
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15
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Beheshti MS, Ahmadpour J, Behzad M, Arabi H. Hydrothermal synthesis of H-ZSM-5 catalysts employing the mixed template method and their application in the conversion of methanol to light olefins. REACTION KINETICS MECHANISMS AND CATALYSIS 2020. [DOI: 10.1007/s11144-020-01771-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Zhokh AA. Effect of Catalyst (de)activation on Reagent Diffusion in ZSM-5/alumina Extruded Pellet for the Methanol-to-hydrocarbons Conversion. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2020. [DOI: 10.1515/ijcre-2019-0138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A pelletized ZSM-5/alumina catalyst was prepared by the extrusion technique. The catalyst was activated by ion-exchange with NH4NO3 aqueous solution. The activated catalyst was trained in the methanol-to-hydrocarbons reaction which caused the catalyst deactivation due to coke deposition (6.5 % wt.). Coke deposition resulted in a two-time decrease in the micropore volume. The methane, benzene, and methanol transport through ZSM-5/alumina pellet were consequently studied prior to activation, after activation, and after catalyst deactivation. A slight decrease in the diffusion rate after catalyst activation is observed. After deactivation, the diffusion rate increases insignificantly. The diffusion regime remains unchanged with respect to either activation or deactivation procedure. Contrary, for the methanol, the diffusion rate through a deactivated catalyst pellet remarkably increases due to micropore blockage by coke deposition. The obtained results reveal that the micropores blockage during the catalyst deactivation enhances the methanol mass transfer.
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17
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Bailleul S, Yarulina I, Hoffman AEJ, Dokania A, Abou-Hamad E, Chowdhury AD, Pieters G, Hajek J, De Wispelaere K, Waroquier M, Gascon J, Van Speybroeck V. A Supramolecular View on the Cooperative Role of Brønsted and Lewis Acid Sites in Zeolites for Methanol Conversion. J Am Chem Soc 2019; 141:14823-14842. [PMID: 31464134 PMCID: PMC6753656 DOI: 10.1021/jacs.9b07484] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A systematic molecular level and spectroscopic investigation is presented to show the cooperative role of Brønsted acid and Lewis acid sites in zeolites for the conversion of methanol. Extra-framework alkaline-earth metal containing species and aluminum species decrease the number of Brønsted acid sites, as protonated metal clusters are formed. A combined experimental and theoretical effort shows that postsynthetically modified ZSM-5 zeolites, by incorporation of extra-framework alkaline-earth metals or by demetalation with dealuminating agents, contain both mononuclear [MOH]+ and double protonated binuclear metal clusters [M(μ-OH)2M]2+ (M = Mg, Ca, Sr, Ba, and HOAl). The metal in the extra-framework clusters has a Lewis acid character, which is confirmed experimentally and theoretically by IR spectra of adsorbed pyridine. The strength of the Lewis acid sites (Mg > Ca > Sr > Ba) was characterized by a blue shift of characteristic IR peaks, thus offering a tool to sample Lewis acidity experimentally. The incorporation of extra-framework Lewis acid sites has a substantial influence on the reactivity of propene and benzene methylations. Alkaline-earth Lewis acid sites yield increased benzene methylation barriers and destabilization of typical aromatic intermediates, whereas propene methylation routes are less affected. The effect on the catalytic function is especially induced by the double protonated binuclear species. Overall, the extra-framework metal clusters have a dual effect on the catalytic function. By reducing the number of Brønsted acid sites and suppressing typical catalytic reactions in which aromatics are involved, an optimal propene selectivity and increased lifetime for methanol conversion over zeolites is obtained. The combined experimental and theoretical approach gives a unique insight into the nature of the supramolecular zeolite catalyst for methanol conversion which can be meticulously tuned by subtle interplay of Brønsted and Lewis acid sites.
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Affiliation(s)
- Simon Bailleul
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , B-9052 Zwijnaarde , Belgium
| | - Irina Yarulina
- King Abdullah University of Science and Technology , KAUST Catalysis Center, Advanced Catalytic Materials , Thuwal 23955-6900 , Saudi Arabia
| | - Alexander E J Hoffman
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , B-9052 Zwijnaarde , Belgium
| | - Abhay Dokania
- King Abdullah University of Science and Technology , KAUST Catalysis Center, Advanced Catalytic Materials , Thuwal 23955-6900 , Saudi Arabia
| | - Edy Abou-Hamad
- King Abdullah University of Science and Technology (KAUST) , Core Laboratories , Thuwal , Saudi Arabia
| | - Abhishek Dutta Chowdhury
- King Abdullah University of Science and Technology , KAUST Catalysis Center, Advanced Catalytic Materials , Thuwal 23955-6900 , Saudi Arabia
| | - Giovanni Pieters
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , B-9052 Zwijnaarde , Belgium
| | - Julianna Hajek
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , B-9052 Zwijnaarde , Belgium
| | - Kristof De Wispelaere
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , B-9052 Zwijnaarde , Belgium
| | - Michel Waroquier
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , B-9052 Zwijnaarde , Belgium
| | - Jorge Gascon
- King Abdullah University of Science and Technology , KAUST Catalysis Center, Advanced Catalytic Materials , Thuwal 23955-6900 , Saudi Arabia
| | - Veronique Van Speybroeck
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , B-9052 Zwijnaarde , Belgium
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18
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Incorporation of silica grafted silver nanoparticles into polyvinyl chloride/polycarbonate hollow fiber membranes for pharmaceutical wastewater treatment. Chem Eng Res Des 2018. [DOI: 10.1016/j.cherd.2018.03.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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19
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Rostamizadeh M, Jafarizad A, Gharibian S. High efficient decolorization of Reactive Red 120 azo dye over reusable Fe-ZSM-5 nanocatalyst in electro-Fenton reaction. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.10.041] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Hazrati H, Rostamizadeh M, Omidkhah MR, Sadeghian Z. Influence of synthesis and operating parameters on silicalite-1 membrane properties. CR CHIM 2018. [DOI: 10.1016/j.crci.2017.11.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Gorzin F, Towfighi Darian J, Yaripour F, Mousavi SM. Preparation of hierarchical HZSM-5 zeolites with combined desilication with NaAlO2/tetrapropylammonium hydroxide and acid modification for converting methanol to propylene. RSC Adv 2018; 8:41131-41142. [PMID: 35559299 PMCID: PMC9091568 DOI: 10.1039/c8ra08624a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 11/27/2018] [Indexed: 02/02/2023] Open
Abstract
A two-step route comprising desilication by NaAlO2/TPAOH mixture, followed by acid washing was used to produce mesoporous HZSM-5. The optimum alkaline-acid treated sample showed high stability (640 h) compared to the parent one in MTP reaction (425 h).
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Affiliation(s)
- Fatemeh Gorzin
- Department of Chemical Engineering
- Tarbiat Modares University
- Tehran
- Iran
| | | | - Fereydoon Yaripour
- Catalysis Research Group
- Petrochemical Research & Technology Company
- National Iranian Petrochemical Company
- Tehran
- Iran
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22
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Blay V, Louis B, Miravalles R, Yokoi T, Peccatiello KA, Clough M, Yilmaz B. Engineering Zeolites for Catalytic Cracking to Light Olefins. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02011] [Citation(s) in RCA: 129] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vincent Blay
- Departamento
de Ingeniería Química, Universitat de València, Av.
de la Universitat, s/n, 46100 Burjassot, Spain
| | - Benoît Louis
- Laboratoire
de Synthèse Réactivité Organiques et Catalyse,
Institut de Chimie, UMR 7177 CNRS, Université de Strasbourg, 1 rue
Blaise Pascal, 67000 CEDEX Strasbourg, France
| | - Rubén Miravalles
- Centro de Tecnología Repsol, C/Agustín de Betancourt s/n, 28935 Móstoles, Spain
| | - Toshiyuki Yokoi
- Institute
of Innovative Research, Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Ken A. Peccatiello
- Peccatiello
Engineering,
Catalytic Cracking Solutions, LLC, Moriarity, New Mexico 87035, United States
| | - Melissa Clough
- BASF Refinery Catalysts, 11750 Katy Fwy. Ste. 120, Houston, Texas 77079, United States
| | - Bilge Yilmaz
- BASF Refinery Catalysts, 25 Middlesex-Essex
Tpk., Iselin, New Jersey 08830, United States
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