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个人信息Personal Information
副教授
博士生导师
硕士生导师
主要任职：Associate Professor
其他任职：系教工党支部书记
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：工业催化. 能源化工
办公地点：大连理工大学西校区化工实验楼B421
电子邮箱：lium@dlut.edu.cn
Direct Transformation of Carbon Dioxide to Value-Added Hydrocarbons by Physical Mixtures of Fe5C2 and K-Modified Al2O3
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论文类型：期刊论文
发表时间：2018-07-18
发表刊物：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
收录刊物：SCIE
卷号：57
期号：28
页面范围：9120-9126
ISSN号：0888-5885
摘要：Conversion of CO2 by hydrogenation into higher hydrocarbons has attracted much attention due to the continuous increasing concentration of CO2 in the atmosphere. Fe5C2 was used as the active site and mixed with K-modified supports for CO2 hydrogenation to synthesize value-added hydrocarbons, A series of supports were tested, and the alkaline Al2O3 was the best choice for light olefins and C5+ hydrocarbons. The transformation of product selectivity at time on stream demonstrated that potassium inigrated into Fe5C2 during reaction. The selectivity of C2+ is 69,296 containing 3.896 C-2-C-4(=) and 29.1% C5+ value-added hydrocarbons with the 31.5% CO2 conversion ((H-2/CO2 = 3), When the ratio of H-2 and CO2 was switched to 4, CO2 conversion improved to 40,9%, and the C2+ selectively containing 37.3% C-2-C-4(=) arid 31.1% C5+ value-added hydrocarbons The mixture catalysts can be directly used reduction before reaction, reducing the consumption H-2 and simplifying the operation.