Yan Yang , Xiaotian Liu , Jingfu Jia , Haojia Chen , Xing Mao , Chao Xiong , Hongbing Ji
{"title":"在超临界微通道连续流系统中高效高通量筛选碳酸丙烯酯的制备方法","authors":"Yan Yang , Xiaotian Liu , Jingfu Jia , Haojia Chen , Xing Mao , Chao Xiong , Hongbing Ji","doi":"10.1016/j.jcou.2024.102822","DOIUrl":null,"url":null,"abstract":"<div><p>With the intensification of the global greenhouse effect, the utilization and fixation of CO<sub>2</sub> has become one of the most important research fields in our world. However, there are still enormous challenges in achieving efficient fixation and conversion of carbon dioxide into high-value chemicals. Herein, the cycloaddition reaction strategy is adopted to achieve the fixation of supercritical carbon dioxide (SC-CO<sub>2</sub>) and the high-value conversion of carbon resources to propylene carbonate (PC) by using propylene oxide (PO) as the reaction precursor. Under tetrabutylammonium bromide (TBAB) as a catalyst and water (H<sub>2</sub>O) as a green solvent, the reaction factors, such as reaction temperature, reaction pressure, catalyst amount, water concentration and molar ratio of reactants, is conducted through the high-throughput screening technology to explore the catalytic performance in a self-designed microchannel reactor. The results indicate that the yield of PC can reach 91.82 % (along with a high selectivity of 99.12 %) at a reaction temperature of 160 ℃, reaction pressure of 8 MPa, catalyst amount of 0.72 mol %, reactants molar ratio of 8, and the residence time of 482 s. Besides, the thermodynamic and kinetic for carbonate synthesis are studied to fully understand the reaction process, and the activation energy of is explored. This work is more efficient than most similar reported works, which provide valuable insights into the practical application of CO<sub>2</sub> in the supercritical state combined with microfluidics for synthesizing high-value monomers.</p></div>","PeriodicalId":350,"journal":{"name":"Journal of CO2 Utilization","volume":null,"pages":null},"PeriodicalIF":7.2000,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2212982024001574/pdfft?md5=bbdbce3aace526abbc61a5e842a6eae6&pid=1-s2.0-S2212982024001574-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Efficient high-throughput screening for the preparation of propylene carbonate in a supercritical microchannel continuous flow system\",\"authors\":\"Yan Yang , Xiaotian Liu , Jingfu Jia , Haojia Chen , Xing Mao , Chao Xiong , Hongbing Ji\",\"doi\":\"10.1016/j.jcou.2024.102822\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>With the intensification of the global greenhouse effect, the utilization and fixation of CO<sub>2</sub> has become one of the most important research fields in our world. However, there are still enormous challenges in achieving efficient fixation and conversion of carbon dioxide into high-value chemicals. Herein, the cycloaddition reaction strategy is adopted to achieve the fixation of supercritical carbon dioxide (SC-CO<sub>2</sub>) and the high-value conversion of carbon resources to propylene carbonate (PC) by using propylene oxide (PO) as the reaction precursor. Under tetrabutylammonium bromide (TBAB) as a catalyst and water (H<sub>2</sub>O) as a green solvent, the reaction factors, such as reaction temperature, reaction pressure, catalyst amount, water concentration and molar ratio of reactants, is conducted through the high-throughput screening technology to explore the catalytic performance in a self-designed microchannel reactor. The results indicate that the yield of PC can reach 91.82 % (along with a high selectivity of 99.12 %) at a reaction temperature of 160 ℃, reaction pressure of 8 MPa, catalyst amount of 0.72 mol %, reactants molar ratio of 8, and the residence time of 482 s. Besides, the thermodynamic and kinetic for carbonate synthesis are studied to fully understand the reaction process, and the activation energy of is explored. This work is more efficient than most similar reported works, which provide valuable insights into the practical application of CO<sub>2</sub> in the supercritical state combined with microfluidics for synthesizing high-value monomers.</p></div>\",\"PeriodicalId\":350,\"journal\":{\"name\":\"Journal of CO2 Utilization\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":7.2000,\"publicationDate\":\"2024-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2212982024001574/pdfft?md5=bbdbce3aace526abbc61a5e842a6eae6&pid=1-s2.0-S2212982024001574-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of CO2 Utilization\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2212982024001574\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of CO2 Utilization","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2212982024001574","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Efficient high-throughput screening for the preparation of propylene carbonate in a supercritical microchannel continuous flow system
With the intensification of the global greenhouse effect, the utilization and fixation of CO2 has become one of the most important research fields in our world. However, there are still enormous challenges in achieving efficient fixation and conversion of carbon dioxide into high-value chemicals. Herein, the cycloaddition reaction strategy is adopted to achieve the fixation of supercritical carbon dioxide (SC-CO2) and the high-value conversion of carbon resources to propylene carbonate (PC) by using propylene oxide (PO) as the reaction precursor. Under tetrabutylammonium bromide (TBAB) as a catalyst and water (H2O) as a green solvent, the reaction factors, such as reaction temperature, reaction pressure, catalyst amount, water concentration and molar ratio of reactants, is conducted through the high-throughput screening technology to explore the catalytic performance in a self-designed microchannel reactor. The results indicate that the yield of PC can reach 91.82 % (along with a high selectivity of 99.12 %) at a reaction temperature of 160 ℃, reaction pressure of 8 MPa, catalyst amount of 0.72 mol %, reactants molar ratio of 8, and the residence time of 482 s. Besides, the thermodynamic and kinetic for carbonate synthesis are studied to fully understand the reaction process, and the activation energy of is explored. This work is more efficient than most similar reported works, which provide valuable insights into the practical application of CO2 in the supercritical state combined with microfluidics for synthesizing high-value monomers.
期刊介绍:
The Journal of CO2 Utilization offers a single, multi-disciplinary, scholarly platform for the exchange of novel research in the field of CO2 re-use for scientists and engineers in chemicals, fuels and materials.
The emphasis is on the dissemination of leading-edge research from basic science to the development of new processes, technologies and applications.
The Journal of CO2 Utilization publishes original peer-reviewed research papers, reviews, and short communications, including experimental and theoretical work, and analytical models and simulations.