Hydrothermal reaction of cellulose in ionic liquid catalyzed by Er(OTf)3
This research explores the potential of ionic liquid to improve lactic acid yield of the hydrothermal reaction of cellulose. The research premise was that ionic liquid dissolved cellulose and water into liquid phase, which would facilitate the formation of glucose and lactic acid using water-toleran...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Results in Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123022003012 |
| _version_ | 1828178164844593152 |
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| author | Tanawan Pinnarat Nattajak Wongkam |
| author_facet | Tanawan Pinnarat Nattajak Wongkam |
| author_sort | Tanawan Pinnarat |
| collection | DOAJ |
| description | This research explores the potential of ionic liquid to improve lactic acid yield of the hydrothermal reaction of cellulose. The research premise was that ionic liquid dissolved cellulose and water into liquid phase, which would facilitate the formation of glucose and lactic acid using water-tolerant catalyst Erbium (III) trifluoromethanesulfonate (Er(OTf)3). Contrary to the research premise, the experiment revealed that dissolving cellulose in ionic liquid prior to hydrothermal reaction lowered lactic acid yield while increasing hydroxymethylfurfural (HMF) yield. The phenomenon could be attributed to dissociation of water and ionic liquid to give hydronium ion and chloride ion, which subsequently formed hydrochloric acid (HCl). HCl catalyzed cellulose into HMF, in addition to lactic acid. Pressure and pressurized gas had minimal impact on the yield of lactic acid, while the hydrothermal reaction was affected by type of cation and anion of ionic liquid. The highest lactic acid yield of 54.26% was achieved by using 1-butyl-3 methylimidazolium chloride ionic liquid, with 190 °C, 30-min, 10 bar CO2 initial pressure, and Er(OTf)3 50 wt% cellulose. Meanwhile, the highest HMF yield of 66.06% was realized with 1-butyl-3-methylimidazolium hydrogen sulfate in the absence of Er(OTf)3. |
| first_indexed | 2024-04-12T05:11:33Z |
| format | Article |
| id | doaj.art-65e26fed34f147a2a0d060abfdcedb0a |
| institution | Directory Open Access Journal |
| issn | 2590-1230 |
| language | English |
| last_indexed | 2024-04-12T05:11:33Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj.art-65e26fed34f147a2a0d060abfdcedb0a2022-12-22T03:46:45ZengElsevierResults in Engineering2590-12302022-12-0116100631Hydrothermal reaction of cellulose in ionic liquid catalyzed by Er(OTf)3Tanawan Pinnarat0Nattajak Wongkam1Corresponding author.; Department of Chemical Engineering, School of Engineering, King Mongkut's Institute of Technology Ladkrabang, ThailandDepartment of Chemical Engineering, School of Engineering, King Mongkut's Institute of Technology Ladkrabang, ThailandThis research explores the potential of ionic liquid to improve lactic acid yield of the hydrothermal reaction of cellulose. The research premise was that ionic liquid dissolved cellulose and water into liquid phase, which would facilitate the formation of glucose and lactic acid using water-tolerant catalyst Erbium (III) trifluoromethanesulfonate (Er(OTf)3). Contrary to the research premise, the experiment revealed that dissolving cellulose in ionic liquid prior to hydrothermal reaction lowered lactic acid yield while increasing hydroxymethylfurfural (HMF) yield. The phenomenon could be attributed to dissociation of water and ionic liquid to give hydronium ion and chloride ion, which subsequently formed hydrochloric acid (HCl). HCl catalyzed cellulose into HMF, in addition to lactic acid. Pressure and pressurized gas had minimal impact on the yield of lactic acid, while the hydrothermal reaction was affected by type of cation and anion of ionic liquid. The highest lactic acid yield of 54.26% was achieved by using 1-butyl-3 methylimidazolium chloride ionic liquid, with 190 °C, 30-min, 10 bar CO2 initial pressure, and Er(OTf)3 50 wt% cellulose. Meanwhile, the highest HMF yield of 66.06% was realized with 1-butyl-3-methylimidazolium hydrogen sulfate in the absence of Er(OTf)3.http://www.sciencedirect.com/science/article/pii/S2590123022003012Hydrothermal of celluloseIonic liquidLactic acidHMFEr(OTf)3 |
| spellingShingle | Tanawan Pinnarat Nattajak Wongkam Hydrothermal reaction of cellulose in ionic liquid catalyzed by Er(OTf)3 Results in Engineering Hydrothermal of cellulose Ionic liquid Lactic acid HMF Er(OTf)3 |
| title | Hydrothermal reaction of cellulose in ionic liquid catalyzed by Er(OTf)3 |
| title_full | Hydrothermal reaction of cellulose in ionic liquid catalyzed by Er(OTf)3 |
| title_fullStr | Hydrothermal reaction of cellulose in ionic liquid catalyzed by Er(OTf)3 |
| title_full_unstemmed | Hydrothermal reaction of cellulose in ionic liquid catalyzed by Er(OTf)3 |
| title_short | Hydrothermal reaction of cellulose in ionic liquid catalyzed by Er(OTf)3 |
| title_sort | hydrothermal reaction of cellulose in ionic liquid catalyzed by er otf 3 |
| topic | Hydrothermal of cellulose Ionic liquid Lactic acid HMF Er(OTf)3 |
| url | http://www.sciencedirect.com/science/article/pii/S2590123022003012 |
| work_keys_str_mv | AT tanawanpinnarat hydrothermalreactionofcelluloseinionicliquidcatalyzedbyerotf3 AT nattajakwongkam hydrothermalreactionofcelluloseinionicliquidcatalyzedbyerotf3 |