Preparation of Highly Active Cu/SiO<sub>2</sub> Catalysts for Furfural to 2-Methylfuran by Ammonia Evaporation Method
Biomass plays an important role in the green manufacture of high value-added chemicals. Among them, the conversion of furfural (FFA) into 2-methylfuran (2-MF), catalyzed by a copper-chromium catalyst, is important in its industrial application. However, the use of chromium is limited due to its toxi...
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| Format: | Article |
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MDPI AG
2022-03-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/12/3/276 |
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| author | Xinxin Fu Yan Liu Qiaoyun Liu Zhongyi Liu Zhikun Peng |
| author_facet | Xinxin Fu Yan Liu Qiaoyun Liu Zhongyi Liu Zhikun Peng |
| author_sort | Xinxin Fu |
| collection | DOAJ |
| description | Biomass plays an important role in the green manufacture of high value-added chemicals. Among them, the conversion of furfural (FFA) into 2-methylfuran (2-MF), catalyzed by a copper-chromium catalyst, is important in its industrial application. However, the use of chromium is limited due to its toxicity and pollution of the environment. In this paper, a Cu/SiO<sub>2</sub> catalyst, prepared by the ammonia evaporation method, shows a better catalytic performance compared with that prepared by the co-precipitation method for the vapor-phase hydrodeoxygenation of FFA. The selectivity of 2-MF is higher than 80% with almost a complete conversion of FFA. Combined with the characterizations, the superiority of the ammonia evaporation method is attributed to the reduction of highly dispersed copper species and the increased Cu<sup>+</sup>/(Cu<sup>+</sup> + Cu<sup>0</sup>) ratio due to the formation of a large content of copper phyllosilicate during the preparation. Moreover, Cu<sup>+</sup> sites can act as a weak acid site, which improve the surface acidity of the catalyst and facilitate the formation of 2-MF. This new catalytic system provides a feasible and promising strategy for the industrial preparation of 2-MF from FFA, and effectively utilizes biomass resources to promote the development of biomass industry. |
| first_indexed | 2024-03-09T20:01:50Z |
| format | Article |
| id | doaj.art-5296d091f1ec4c1da8e140b4db7a8f94 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-09T20:01:50Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-5296d091f1ec4c1da8e140b4db7a8f942023-11-24T00:42:12ZengMDPI AGCatalysts2073-43442022-03-0112327610.3390/catal12030276Preparation of Highly Active Cu/SiO<sub>2</sub> Catalysts for Furfural to 2-Methylfuran by Ammonia Evaporation MethodXinxin Fu0Yan Liu1Qiaoyun Liu2Zhongyi Liu3Zhikun Peng4Green Catalysis Center, Henan Institutes of Advanced Technology, College of Chemistry, Zhengzhou University, Zhengzhou 450001, ChinaGreen Catalysis Center, Henan Institutes of Advanced Technology, College of Chemistry, Zhengzhou University, Zhengzhou 450001, ChinaGreen Catalysis Center, Henan Institutes of Advanced Technology, College of Chemistry, Zhengzhou University, Zhengzhou 450001, ChinaGreen Catalysis Center, Henan Institutes of Advanced Technology, College of Chemistry, Zhengzhou University, Zhengzhou 450001, ChinaGreen Catalysis Center, Henan Institutes of Advanced Technology, College of Chemistry, Zhengzhou University, Zhengzhou 450001, ChinaBiomass plays an important role in the green manufacture of high value-added chemicals. Among them, the conversion of furfural (FFA) into 2-methylfuran (2-MF), catalyzed by a copper-chromium catalyst, is important in its industrial application. However, the use of chromium is limited due to its toxicity and pollution of the environment. In this paper, a Cu/SiO<sub>2</sub> catalyst, prepared by the ammonia evaporation method, shows a better catalytic performance compared with that prepared by the co-precipitation method for the vapor-phase hydrodeoxygenation of FFA. The selectivity of 2-MF is higher than 80% with almost a complete conversion of FFA. Combined with the characterizations, the superiority of the ammonia evaporation method is attributed to the reduction of highly dispersed copper species and the increased Cu<sup>+</sup>/(Cu<sup>+</sup> + Cu<sup>0</sup>) ratio due to the formation of a large content of copper phyllosilicate during the preparation. Moreover, Cu<sup>+</sup> sites can act as a weak acid site, which improve the surface acidity of the catalyst and facilitate the formation of 2-MF. This new catalytic system provides a feasible and promising strategy for the industrial preparation of 2-MF from FFA, and effectively utilizes biomass resources to promote the development of biomass industry.https://www.mdpi.com/2073-4344/12/3/276biomass2-methylfuranCu/SiO<sub>2</sub>copper phyllosilicatehydrogenolysis |
| spellingShingle | Xinxin Fu Yan Liu Qiaoyun Liu Zhongyi Liu Zhikun Peng Preparation of Highly Active Cu/SiO<sub>2</sub> Catalysts for Furfural to 2-Methylfuran by Ammonia Evaporation Method Catalysts biomass 2-methylfuran Cu/SiO<sub>2</sub> copper phyllosilicate hydrogenolysis |
| title | Preparation of Highly Active Cu/SiO<sub>2</sub> Catalysts for Furfural to 2-Methylfuran by Ammonia Evaporation Method |
| title_full | Preparation of Highly Active Cu/SiO<sub>2</sub> Catalysts for Furfural to 2-Methylfuran by Ammonia Evaporation Method |
| title_fullStr | Preparation of Highly Active Cu/SiO<sub>2</sub> Catalysts for Furfural to 2-Methylfuran by Ammonia Evaporation Method |
| title_full_unstemmed | Preparation of Highly Active Cu/SiO<sub>2</sub> Catalysts for Furfural to 2-Methylfuran by Ammonia Evaporation Method |
| title_short | Preparation of Highly Active Cu/SiO<sub>2</sub> Catalysts for Furfural to 2-Methylfuran by Ammonia Evaporation Method |
| title_sort | preparation of highly active cu sio sub 2 sub catalysts for furfural to 2 methylfuran by ammonia evaporation method |
| topic | biomass 2-methylfuran Cu/SiO<sub>2</sub> copper phyllosilicate hydrogenolysis |
| url | https://www.mdpi.com/2073-4344/12/3/276 |
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