{"title":"Hydrogenation of СО2 into Hydrocarbons on Bifunctional Catalysts","authors":"","doi":"10.1134/s0965544123090025","DOIUrl":null,"url":null,"abstract":"<span> <h3>Abstract</h3> <p>Direct synthesis of liquid hydrocarbons from СО<sub>2</sub> and Н<sub>2</sub> on a combined bifunctional catalyst consisting of ZnAlO<sub><em>x</em></sub> or ZnCrO<sub><em>x</em></sub> (oxide catalysts for the synthesis of hydrocarbons from СО and Н<sub>2</sub>) and HZSM-5 zeolites with different SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> molar ratios was studied. The physicochemical characteristics of the zeolites, namely, acidity evaluated by temperature-programmed ammonia desorption, porosity, and specific surface area, were examined. The catalyst performance was studied on a micro-pilot installation in the flow recirculation mode at 340°С and a pressure of 10 MPa. The ZnAlO<sub><em>x</em></sub>/ZnZSM-5(40) catalyst exhibits the highest selectivity to С<sub>5+</sub> hydrocarbons, which is associated with the presence of strong Brønsted acid sites on its surface.</p> <span> <span> <img alt=\"\" src=\"https://static-content.springer.com/image/MediaObjects/11494_2024_8823_Figa_HTML.png\"/> </span> </span> </span>","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":null,"pages":null},"PeriodicalIF":1.3000,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Petroleum Chemistry","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1134/s0965544123090025","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, ORGANIC","Score":null,"Total":0}
引用次数: 0
Abstract
Direct synthesis of liquid hydrocarbons from СО2 and Н2 on a combined bifunctional catalyst consisting of ZnAlOx or ZnCrOx (oxide catalysts for the synthesis of hydrocarbons from СО and Н2) and HZSM-5 zeolites with different SiO2/Al2O3 molar ratios was studied. The physicochemical characteristics of the zeolites, namely, acidity evaluated by temperature-programmed ammonia desorption, porosity, and specific surface area, were examined. The catalyst performance was studied on a micro-pilot installation in the flow recirculation mode at 340°С and a pressure of 10 MPa. The ZnAlOx/ZnZSM-5(40) catalyst exhibits the highest selectivity to С5+ hydrocarbons, which is associated with the presence of strong Brønsted acid sites on its surface.
期刊介绍：
Petroleum Chemistry (Neftekhimiya), founded in 1961, offers original papers on and reviews of theoretical and experimental studies concerned with current problems of petroleum chemistry and processing such as chemical composition of crude oils and natural gas liquids; petroleum refining (cracking, hydrocracking, and catalytic reforming); catalysts for petrochemical processes (hydrogenation, isomerization, oxidation, hydroformylation, etc.); activation and catalytic transformation of hydrocarbons and other components of petroleum, natural gas, and other complex organic mixtures; new petrochemicals including lubricants and additives; environmental problems; and information on scientific meetings relevant to these areas.
Petroleum Chemistry publishes articles on these topics from members of the scientific community of the former Soviet Union.
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