One-pot liquefaction of cellulose to ethyl levulinate via 1-sulfonic acid-3-methyl imidazolium trichlorozincate as Brønsted-Lewis catalyst
The direct conversions of cellulose to ethyl levulinate (EL) via Brønsted acidic ionic liquid (BAIL), Lewis acidic ionic liquid (LAIL), and Brønsted-Lewis acidic ionic liquid (BLAIL) conducted in this study is a sustainable approach. Initially, BAIL 1-sulfonic acid-3-methyl imidazolium chloride [SMI...
| Principais autores: | , , , , , |
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| Formato: | Artigo |
| Idioma: | English English |
| Publicado em: |
Elsevier Ltd
2023
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| Assuntos: | |
| Acesso em linha: | http://umpir.ump.edu.my/id/eprint/40470/1/One-pot%20liquefaction%20of%20cellulose%20to%20ethyl%20levulinate.pdf http://umpir.ump.edu.my/id/eprint/40470/2/One-pot%20liquefaction%20of%20cellulose%20to%20ethyl%20levulinate%20via%201-sulfonic%20acid-3-methyl%20imidazolium%20trichlorozincate%20as%20Br%C3%B8nsted-Lewis%20catalyst_ABS.pdf |
| _version_ | 1825815495169802240 |
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| author | Krishnasamy, Kirrthana Mohd Asraff, Asmadi Nor Aishah Saidina, Amin Muzakkir Mohammad, Mohammad Zainol Zaki Yamani, Zakaria Sureena, Abdullah |
| author_facet | Krishnasamy, Kirrthana Mohd Asraff, Asmadi Nor Aishah Saidina, Amin Muzakkir Mohammad, Mohammad Zainol Zaki Yamani, Zakaria Sureena, Abdullah |
| author_sort | Krishnasamy, Kirrthana |
| collection | UMP |
| description | The direct conversions of cellulose to ethyl levulinate (EL) via Brønsted acidic ionic liquid (BAIL), Lewis acidic ionic liquid (LAIL), and Brønsted-Lewis acidic ionic liquid (BLAIL) conducted in this study is a sustainable approach. Initially, BAIL 1-sulfonic acid-3-methyl imidazolium chloride [SMIM][Cl] was prepared by the mixing of 1-methylimidazole, dry dichloromethane, and chlorosulfonic acid. Then, Lewis acidic site was provided to the BAIL by the addition of zinc chloride (ZnCl2), to synthetize BLAIL 1-sulfonic acid-3-methyl imidazolium trichlorozincate, [SMIM][ZnCl3]. Meanwhile, LAIL 1-butyl-3-methyl imidazolium trichlorozincate [BMIM][ZnCl3] was prepared by the addition of ZnCl2 to a neutral 1-butyl-3-methyl imidazolium chloride [BMIM][Cl]. These three catalysts were then characterized and employed in the one-pot liquefaction process that was conducted in a stainless-steel batch reactor at 180 °C for 10 hr, by charging 0.6 g of cellulose, 40 mL of ethanol and 3 g of catalyst. A parameter study, mainly temperature (120-200) °C, time (2-10) hr, and cellulose loading (0.2-1.0) g, were then conducted to determine the selected parameters to obtain high EL yield. Among the employed ionic liquids (ILs), BLAIL [SMIM][ZnCl3] exhibited the highest catalytic activity, which was contributed mainly by its co-existence of Brønsted and Lewis acidic sites as detected in Fourier-Transform Infrared (FTIR) analysis, and its high acidic value. The maximum EL yield (20.27 wt%) was obtained under conditions of 180 °C, 6 hr, 0.6 of cellulose, and 3 g of [SMIM][ZnCl3]. The outcome of this study provides an insight on the potential of novel [SMIM][ZnCl3] in facilitating the direct cellulose ethanolysis to EL. |
| first_indexed | 2024-09-25T03:48:05Z |
| format | Article |
| id | UMPir40470 |
| institution | Universiti Malaysia Pahang |
| language | English English |
| last_indexed | 2024-09-25T03:48:05Z |
| publishDate | 2023 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | UMPir404702024-04-30T06:23:49Z http://umpir.ump.edu.my/id/eprint/40470/ One-pot liquefaction of cellulose to ethyl levulinate via 1-sulfonic acid-3-methyl imidazolium trichlorozincate as Brønsted-Lewis catalyst Krishnasamy, Kirrthana Mohd Asraff, Asmadi Nor Aishah Saidina, Amin Muzakkir Mohammad, Mohammad Zainol Zaki Yamani, Zakaria Sureena, Abdullah QD Chemistry T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology The direct conversions of cellulose to ethyl levulinate (EL) via Brønsted acidic ionic liquid (BAIL), Lewis acidic ionic liquid (LAIL), and Brønsted-Lewis acidic ionic liquid (BLAIL) conducted in this study is a sustainable approach. Initially, BAIL 1-sulfonic acid-3-methyl imidazolium chloride [SMIM][Cl] was prepared by the mixing of 1-methylimidazole, dry dichloromethane, and chlorosulfonic acid. Then, Lewis acidic site was provided to the BAIL by the addition of zinc chloride (ZnCl2), to synthetize BLAIL 1-sulfonic acid-3-methyl imidazolium trichlorozincate, [SMIM][ZnCl3]. Meanwhile, LAIL 1-butyl-3-methyl imidazolium trichlorozincate [BMIM][ZnCl3] was prepared by the addition of ZnCl2 to a neutral 1-butyl-3-methyl imidazolium chloride [BMIM][Cl]. These three catalysts were then characterized and employed in the one-pot liquefaction process that was conducted in a stainless-steel batch reactor at 180 °C for 10 hr, by charging 0.6 g of cellulose, 40 mL of ethanol and 3 g of catalyst. A parameter study, mainly temperature (120-200) °C, time (2-10) hr, and cellulose loading (0.2-1.0) g, were then conducted to determine the selected parameters to obtain high EL yield. Among the employed ionic liquids (ILs), BLAIL [SMIM][ZnCl3] exhibited the highest catalytic activity, which was contributed mainly by its co-existence of Brønsted and Lewis acidic sites as detected in Fourier-Transform Infrared (FTIR) analysis, and its high acidic value. The maximum EL yield (20.27 wt%) was obtained under conditions of 180 °C, 6 hr, 0.6 of cellulose, and 3 g of [SMIM][ZnCl3]. The outcome of this study provides an insight on the potential of novel [SMIM][ZnCl3] in facilitating the direct cellulose ethanolysis to EL. Elsevier Ltd 2023 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/40470/1/One-pot%20liquefaction%20of%20cellulose%20to%20ethyl%20levulinate.pdf pdf en http://umpir.ump.edu.my/id/eprint/40470/2/One-pot%20liquefaction%20of%20cellulose%20to%20ethyl%20levulinate%20via%201-sulfonic%20acid-3-methyl%20imidazolium%20trichlorozincate%20as%20Br%C3%B8nsted-Lewis%20catalyst_ABS.pdf Krishnasamy, Kirrthana and Mohd Asraff, Asmadi and Nor Aishah Saidina, Amin and Muzakkir Mohammad, Mohammad Zainol and Zaki Yamani, Zakaria and Sureena, Abdullah (2023) One-pot liquefaction of cellulose to ethyl levulinate via 1-sulfonic acid-3-methyl imidazolium trichlorozincate as Brønsted-Lewis catalyst. Materials Today: Proceedings. pp. 1-7. ISSN 2214-7853. (In Press / Online First) (In Press / Online First) https://doi.org/10.1016/j.matpr.2023.02.024 https://doi.org/10.1016/j.matpr.2023.02.024 |
| spellingShingle | QD Chemistry T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology Krishnasamy, Kirrthana Mohd Asraff, Asmadi Nor Aishah Saidina, Amin Muzakkir Mohammad, Mohammad Zainol Zaki Yamani, Zakaria Sureena, Abdullah One-pot liquefaction of cellulose to ethyl levulinate via 1-sulfonic acid-3-methyl imidazolium trichlorozincate as Brønsted-Lewis catalyst |
| title | One-pot liquefaction of cellulose to ethyl levulinate via 1-sulfonic acid-3-methyl imidazolium trichlorozincate as Brønsted-Lewis catalyst |
| title_full | One-pot liquefaction of cellulose to ethyl levulinate via 1-sulfonic acid-3-methyl imidazolium trichlorozincate as Brønsted-Lewis catalyst |
| title_fullStr | One-pot liquefaction of cellulose to ethyl levulinate via 1-sulfonic acid-3-methyl imidazolium trichlorozincate as Brønsted-Lewis catalyst |
| title_full_unstemmed | One-pot liquefaction of cellulose to ethyl levulinate via 1-sulfonic acid-3-methyl imidazolium trichlorozincate as Brønsted-Lewis catalyst |
| title_short | One-pot liquefaction of cellulose to ethyl levulinate via 1-sulfonic acid-3-methyl imidazolium trichlorozincate as Brønsted-Lewis catalyst |
| title_sort | one pot liquefaction of cellulose to ethyl levulinate via 1 sulfonic acid 3 methyl imidazolium trichlorozincate as bronsted lewis catalyst |
| topic | QD Chemistry T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/40470/1/One-pot%20liquefaction%20of%20cellulose%20to%20ethyl%20levulinate.pdf http://umpir.ump.edu.my/id/eprint/40470/2/One-pot%20liquefaction%20of%20cellulose%20to%20ethyl%20levulinate%20via%201-sulfonic%20acid-3-methyl%20imidazolium%20trichlorozincate%20as%20Br%C3%B8nsted-Lewis%20catalyst_ABS.pdf |
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