Efficient fixation of CO2 into propylene carbonate with [BMIM]Br in a continuous-flow microreaction system
Utilization of carbon dioxide (CO2) is of great significance in the development of CO2 absorption and the solution of greenhouse gas effect. Highly efficient conversion of CO2 into cyclic carbonate with green catalysts is essential for the more sustainable expansion of CO2 fixation. Traditional batc...
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KeAi Communications Co., Ltd.
2021-04-01
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| Series: | Green Energy & Environment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468025720300492 |
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| author | Yuxin Wu Yuncheng Ding Jianhong Xu Yundong Wang Kathryn Mumford Geoffrey W. Stevens Weiyang Fei |
| author_facet | Yuxin Wu Yuncheng Ding Jianhong Xu Yundong Wang Kathryn Mumford Geoffrey W. Stevens Weiyang Fei |
| author_sort | Yuxin Wu |
| collection | DOAJ |
| description | Utilization of carbon dioxide (CO2) is of great significance in the development of CO2 absorption and the solution of greenhouse gas effect. Highly efficient conversion of CO2 into cyclic carbonate with green catalysts is essential for the more sustainable expansion of CO2 fixation. Traditional batch reactor is limited by low efficiency, high cost and low security. Meanwhile, continuous flow system showcased a myriad of virtues, including shortening the residence time from hours to seconds, and decreasing reaction temperature, and possessing the nature of easy industrial scale-up. In this paper, a continuous-flow microreaction system was developed to synthesis propylene carbonate (PC) from propylene oxide (PO) and CO2 using 1-butyl-3-methylimidazolium bromide ([BMIM]Br) as catalyst. By observing the flow patterns inside microreaction system, the effects of reaction temperature, molar fraction of catalyst, operating pressure, residence time, molar ratio of CO2/PO as well as recycling performance of catalyst on the overall performances were comprehensively evaluated into details. Under different reaction conditions, the flow patterns were set to vary between slug flow and annular flow. The results showed that the yield of propylene carbonate (PC) can reach 99.7% at 140 °C and 3.0 MPa with the residence time of 166 s, while the recycling performance of the designed system greatly conforms the future trend of green chemistry. |
| first_indexed | 2024-12-14T18:26:41Z |
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| id | doaj.art-4855091ccb9e4a2382d245b2bbe2d5aa |
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| issn | 2468-0257 |
| language | English |
| last_indexed | 2024-12-14T18:26:41Z |
| publishDate | 2021-04-01 |
| publisher | KeAi Communications Co., Ltd. |
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| series | Green Energy & Environment |
| spelling | doaj.art-4855091ccb9e4a2382d245b2bbe2d5aa2022-12-21T22:51:54ZengKeAi Communications Co., Ltd.Green Energy & Environment2468-02572021-04-0162291297Efficient fixation of CO2 into propylene carbonate with [BMIM]Br in a continuous-flow microreaction systemYuxin Wu0Yuncheng Ding1Jianhong Xu2Yundong Wang3Kathryn Mumford4Geoffrey W. Stevens5Weiyang Fei6The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China; Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, AustraliaThe State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, ChinaThe State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China; Corresponding authors.The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China; Corresponding authors.Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, AustraliaDepartment of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, AustraliaThe State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, ChinaUtilization of carbon dioxide (CO2) is of great significance in the development of CO2 absorption and the solution of greenhouse gas effect. Highly efficient conversion of CO2 into cyclic carbonate with green catalysts is essential for the more sustainable expansion of CO2 fixation. Traditional batch reactor is limited by low efficiency, high cost and low security. Meanwhile, continuous flow system showcased a myriad of virtues, including shortening the residence time from hours to seconds, and decreasing reaction temperature, and possessing the nature of easy industrial scale-up. In this paper, a continuous-flow microreaction system was developed to synthesis propylene carbonate (PC) from propylene oxide (PO) and CO2 using 1-butyl-3-methylimidazolium bromide ([BMIM]Br) as catalyst. By observing the flow patterns inside microreaction system, the effects of reaction temperature, molar fraction of catalyst, operating pressure, residence time, molar ratio of CO2/PO as well as recycling performance of catalyst on the overall performances were comprehensively evaluated into details. Under different reaction conditions, the flow patterns were set to vary between slug flow and annular flow. The results showed that the yield of propylene carbonate (PC) can reach 99.7% at 140 °C and 3.0 MPa with the residence time of 166 s, while the recycling performance of the designed system greatly conforms the future trend of green chemistry.http://www.sciencedirect.com/science/article/pii/S2468025720300492Microreaction systemCyclic carbonateIonic liquids |
| spellingShingle | Yuxin Wu Yuncheng Ding Jianhong Xu Yundong Wang Kathryn Mumford Geoffrey W. Stevens Weiyang Fei Efficient fixation of CO2 into propylene carbonate with [BMIM]Br in a continuous-flow microreaction system Green Energy & Environment Microreaction system Cyclic carbonate Ionic liquids |
| title | Efficient fixation of CO2 into propylene carbonate with [BMIM]Br in a continuous-flow microreaction system |
| title_full | Efficient fixation of CO2 into propylene carbonate with [BMIM]Br in a continuous-flow microreaction system |
| title_fullStr | Efficient fixation of CO2 into propylene carbonate with [BMIM]Br in a continuous-flow microreaction system |
| title_full_unstemmed | Efficient fixation of CO2 into propylene carbonate with [BMIM]Br in a continuous-flow microreaction system |
| title_short | Efficient fixation of CO2 into propylene carbonate with [BMIM]Br in a continuous-flow microreaction system |
| title_sort | efficient fixation of co2 into propylene carbonate with bmim br in a continuous flow microreaction system |
| topic | Microreaction system Cyclic carbonate Ionic liquids |
| url | http://www.sciencedirect.com/science/article/pii/S2468025720300492 |
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