{"title":"ZnZrOx/MFI一次加氢催化剂的酸性质和孔结构","authors":"Duanxing Li, Xiaofei Lu, Hiroka Kinoshita, Masanori Takemoto, Anand Chokkalingam, Shohei Tada* and Kenta Iyoki*, ","doi":"10.1021/acsengineeringau.3c00027","DOIUrl":null,"url":null,"abstract":"<p >This study investigated the performance of tandem catalysts, comprising a physical mixture of ZnZrO<sub><i>x</i></sub> and MFI-type zeolites, in one-pass CO<sub>2</sub> hydrogenation. To finely adjust both the acidic properties and the pore structures, an alkali treatment was applied to a commercial zeolite. The alkali treatment resulted in enhanced catalytic activity and increased yields of C<sub>2–4</sub> olefin, C<sub>2–4</sub> paraffin, and C<sub>5+</sub> hydrocarbon products, meanwhile suppressing coke formation and increasing the olefin to paraffin ratios. Comprehensive characterizations revealed that the development of the mesopore structure contributed to the observed enhancements in activity and hydrocarbon yields, with the decreased acid number rationalizing the increase in olefin to paraffin ratios. Reduced coke formation was attributed to both mesopore formation and increased external surfaces and optimized acid properties..</p>","PeriodicalId":29804,"journal":{"name":"ACS Engineering Au","volume":null,"pages":null},"PeriodicalIF":4.3000,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsengineeringau.3c00027","citationCount":"0","resultStr":"{\"title\":\"Postsynthetically Tailoring Acid Properties and Pore Structures of ZnZrOx/MFI Catalysts for One-Pass CO2 Hydrogenation\",\"authors\":\"Duanxing Li, Xiaofei Lu, Hiroka Kinoshita, Masanori Takemoto, Anand Chokkalingam, Shohei Tada* and Kenta Iyoki*, \",\"doi\":\"10.1021/acsengineeringau.3c00027\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >This study investigated the performance of tandem catalysts, comprising a physical mixture of ZnZrO<sub><i>x</i></sub> and MFI-type zeolites, in one-pass CO<sub>2</sub> hydrogenation. To finely adjust both the acidic properties and the pore structures, an alkali treatment was applied to a commercial zeolite. The alkali treatment resulted in enhanced catalytic activity and increased yields of C<sub>2–4</sub> olefin, C<sub>2–4</sub> paraffin, and C<sub>5+</sub> hydrocarbon products, meanwhile suppressing coke formation and increasing the olefin to paraffin ratios. Comprehensive characterizations revealed that the development of the mesopore structure contributed to the observed enhancements in activity and hydrocarbon yields, with the decreased acid number rationalizing the increase in olefin to paraffin ratios. Reduced coke formation was attributed to both mesopore formation and increased external surfaces and optimized acid properties..</p>\",\"PeriodicalId\":29804,\"journal\":{\"name\":\"ACS Engineering Au\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2023-09-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://pubs.acs.org/doi/epdf/10.1021/acsengineeringau.3c00027\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Engineering Au\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acsengineeringau.3c00027\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Engineering Au","FirstCategoryId":"1085","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsengineeringau.3c00027","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Postsynthetically Tailoring Acid Properties and Pore Structures of ZnZrOx/MFI Catalysts for One-Pass CO2 Hydrogenation
This study investigated the performance of tandem catalysts, comprising a physical mixture of ZnZrOx and MFI-type zeolites, in one-pass CO2 hydrogenation. To finely adjust both the acidic properties and the pore structures, an alkali treatment was applied to a commercial zeolite. The alkali treatment resulted in enhanced catalytic activity and increased yields of C2–4 olefin, C2–4 paraffin, and C5+ hydrocarbon products, meanwhile suppressing coke formation and increasing the olefin to paraffin ratios. Comprehensive characterizations revealed that the development of the mesopore structure contributed to the observed enhancements in activity and hydrocarbon yields, with the decreased acid number rationalizing the increase in olefin to paraffin ratios. Reduced coke formation was attributed to both mesopore formation and increased external surfaces and optimized acid properties..
期刊介绍：
）ACS Engineering Au is an open access journal that reports significant advances in chemical engineering applied chemistry and energy covering fundamentals processes and products. The journal's broad scope includes experimental theoretical mathematical computational chemical and physical research from academic and industrial settings. Short letters comprehensive articles reviews and perspectives are welcome on topics that include:Fundamental research in such areas as thermodynamics transport phenomena (flow mixing mass & heat transfer) chemical reaction kinetics and engineering catalysis separations interfacial phenomena and materialsProcess design development and intensification (e.g. process technologies for chemicals and materials synthesis and design methods process intensification multiphase reactors scale-up systems analysis process control data correlation schemes modeling machine learning Artificial Intelligence)Product research and development involving chemical and engineering aspects (e.g. catalysts plastics elastomers fibers adhesives coatings paper membranes lubricants ceramics aerosols fluidic devices intensified process equipment)Energy and fuels (e.g. pre-treatment processing and utilization of renewable energy resources; processing and utilization of fuels; properties and structure or molecular composition of both raw fuels and refined products; fuel cells hydrogen batteries; photochemical fuel and energy production; decarbonization; electrification; microwave; cavitation)Measurement techniques computational models and data on thermo-physical thermodynamic and transport properties of materials and phase equilibrium behaviorNew methods models and tools (e.g. real-time data analytics multi-scale models physics informed machine learning models machine learning enhanced physics-based models soft sensors high-performance computing)
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