Dual-templated synthesis of Si-rich [B]-ZSM-5 for high selective light olefins production from methanol
Methanol dehydration is a high potential route for the production of light olefins (C2-C4). In this study, hierarchical Si-rich [B]-ZSM-5 catalysts (Si/Al= 200) were prepared through one-pot hydrothermal synthesis, including boron as a promoter and ethanol as a low-cost secondary template. N2 adsorp...
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| Format: | Article |
| Language: | English |
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Iran Polymer and Petrochemical Institute
2021-06-01
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| Series: | Polyolefins Journal |
| Subjects: | |
| Online Access: | http://poj.ippi.ac.ir/article_1786_c24e1da58ed58bc7416ed39b73bebeb8.pdf |
| _version_ | 1818589433777094656 |
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| author | Salman Beyraghi Mohammad Rostamizadeh Reza Alizadeh |
| author_facet | Salman Beyraghi Mohammad Rostamizadeh Reza Alizadeh |
| author_sort | Salman Beyraghi |
| collection | DOAJ |
| description | Methanol dehydration is a high potential route for the production of light olefins (C2-C4). In this study, hierarchical Si-rich [B]-ZSM-5 catalysts (Si/Al= 200) were prepared through one-pot hydrothermal synthesis, including boron as a promoter and ethanol as a low-cost secondary template. N2 adsorptiondesorption, XRD, FE-SEM, and FT-IR techniques were applied to characterize the catalysts. The effect of different amounts of ethanol and different operating conditions was studied on the ZSM-5 catalyst preparation and performance in methanol-to-olefins (MTO) reaction. The results showed that the optimum amount of ethanol (ethanol/TPABr=5) led to the highest crystallinity (91.2%), the highest specific surface area (>400 m2g-1), and total pore volume (0.19 cm3g-1). The best catalytic performance was obtained at temperature of 480°C and methanol hourly space velocity (WHSV) of 7.2 h-1. The optimum catalyst had the highest propylene selectivity (58%) and light olefin selectivity (85%). The results proved the high capability of the new strategy for the efficient and fast development of the MTO catalyst. |
| first_indexed | 2024-12-16T09:40:35Z |
| format | Article |
| id | doaj.art-47bd029bc82e4178865e597a196e7425 |
| institution | Directory Open Access Journal |
| issn | 2322-2212 2345-6868 |
| language | English |
| last_indexed | 2024-12-16T09:40:35Z |
| publishDate | 2021-06-01 |
| publisher | Iran Polymer and Petrochemical Institute |
| record_format | Article |
| series | Polyolefins Journal |
| spelling | doaj.art-47bd029bc82e4178865e597a196e74252022-12-21T22:36:17ZengIran Polymer and Petrochemical InstitutePolyolefins Journal2322-22122345-68682021-06-01829310310.22063/poj.2021.2852.11761786Dual-templated synthesis of Si-rich [B]-ZSM-5 for high selective light olefins production from methanolSalman Beyraghi0Mohammad Rostamizadeh1Reza Alizadeh2Faculty of Chemical Engineering, Sahand University of Technology, Sahand New Town, Tabriz, Iran, P.O. Box: 51335-1996Faculty of Chemical Engineering, Sahand University of Technology, Sahand New Town, Tabriz, Iran, P.O. Box: 51335-1996Faculty of Chemical Engineering, Sahand University of Technology, Sahand New Town, Tabriz, Iran, P.O. Box: 51335-1996Methanol dehydration is a high potential route for the production of light olefins (C2-C4). In this study, hierarchical Si-rich [B]-ZSM-5 catalysts (Si/Al= 200) were prepared through one-pot hydrothermal synthesis, including boron as a promoter and ethanol as a low-cost secondary template. N2 adsorptiondesorption, XRD, FE-SEM, and FT-IR techniques were applied to characterize the catalysts. The effect of different amounts of ethanol and different operating conditions was studied on the ZSM-5 catalyst preparation and performance in methanol-to-olefins (MTO) reaction. The results showed that the optimum amount of ethanol (ethanol/TPABr=5) led to the highest crystallinity (91.2%), the highest specific surface area (>400 m2g-1), and total pore volume (0.19 cm3g-1). The best catalytic performance was obtained at temperature of 480°C and methanol hourly space velocity (WHSV) of 7.2 h-1. The optimum catalyst had the highest propylene selectivity (58%) and light olefin selectivity (85%). The results proved the high capability of the new strategy for the efficient and fast development of the MTO catalyst.http://poj.ippi.ac.ir/article_1786_c24e1da58ed58bc7416ed39b73bebeb8.pdfmethanol to olefinzsm-5dual templateethanolcatalyst |
| spellingShingle | Salman Beyraghi Mohammad Rostamizadeh Reza Alizadeh Dual-templated synthesis of Si-rich [B]-ZSM-5 for high selective light olefins production from methanol Polyolefins Journal methanol to olefin zsm-5 dual template ethanol catalyst |
| title | Dual-templated synthesis of Si-rich [B]-ZSM-5 for high selective light olefins production from methanol |
| title_full | Dual-templated synthesis of Si-rich [B]-ZSM-5 for high selective light olefins production from methanol |
| title_fullStr | Dual-templated synthesis of Si-rich [B]-ZSM-5 for high selective light olefins production from methanol |
| title_full_unstemmed | Dual-templated synthesis of Si-rich [B]-ZSM-5 for high selective light olefins production from methanol |
| title_short | Dual-templated synthesis of Si-rich [B]-ZSM-5 for high selective light olefins production from methanol |
| title_sort | dual templated synthesis of si rich b zsm 5 for high selective light olefins production from methanol |
| topic | methanol to olefin zsm-5 dual template ethanol catalyst |
| url | http://poj.ippi.ac.ir/article_1786_c24e1da58ed58bc7416ed39b73bebeb8.pdf |
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