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Roles Investigation of Promoters in K/Cu-Zn Catalyst and Higher Alcohols Synthesis from CO2 Hydrogenation over a Novel Two-Stage Bed Catalyst Combination System
Guo, Haijun1,2; Li, Shanggui3; Peng, Fen1,2; Zhang, Hairong1,2; Xiong, Lian1,2; Huang, Chao1,2; Wang, Can1,2; Chen, Xinde1,2
2015-02-01
Source PublicationCATALYSIS LETTERS
Volume145Issue:2Pages:620-630
AbstractA novel two-stage bed catalyst combination system composed of a low-temperature RWGS catalyst and another high-temperature modified F-T synthesis catalyst was developed to higher alcohols synthesis from CO2 hydrogenation in this work. Firstly, the roles of K2O and ZnO promoters in Cu-based catalyst were investigated by N-2 adsorption/desorption, XRD, H-2-TPR, CO2-TPD and RWGS reaction test. Results showed that K2O plays a positive role in improving the CuO-ZnO interaction and ZnO acts as a support for promoting the dispersion of copper species and improving the unit surface area of copper metal. Well dispersed copper in contact with the surface of ZnO particles leads to the ideal performances for RWGS reaction accompanying with methanol synthesis over CuZn1.0K0.15 catalyst due to the synergetic promotion effect between K2O and ZnO promoters. Then, the optimization of loading mode and loading volume ratio of catalyst combination system was conducted. It was indicated that the higher alcohols can be effectively synthesized from CO2 hydrogenation over the optimal CZK(1.5)//CFCK(4.5) two-stage bed catalyst combination system due to the thermal coupling effect and product conversion coupling effect of these catalysts.
SubtypeArticle
KeywordSynergetic Promotion Effect Higher Alcohols Synthesis Co2 Hydrogenation Two-stage Bed Catalyst Combination System
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s10562-014-1446-7
WOS Subject ExtendedChemistry
WOS KeywordMETHANOL SYNTHESIS CATALYSTS ; GAS SHIFT REACTION ; CARBON-DIOXIDE ; CU DISPERSION ; ETHANOL ; TEMPERATURE ; METHANATION ; CONVERSION ; REDUCTION ; BUTANOL
Indexed BySCI
Language英语
WOS SubjectChemistry, Physical
WOS IDWOS:000349553000017
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10800
Collection中国科学院广州能源研究所
集成技术研发中心
Affiliation1.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, R&D Ctr Xuyi Attapulgite Appl Technol, Guangzhou Inst Energy Convers, Xuyi 211700, Peoples R China
3.China Nucl Power Engn Co Ltd, Engn & Design Inst, Shenzhen 518052, Peoples R China
Recommended Citation
GB/T 7714
Guo, Haijun,Li, Shanggui,Peng, Fen,et al. Roles Investigation of Promoters in K/Cu-Zn Catalyst and Higher Alcohols Synthesis from CO2 Hydrogenation over a Novel Two-Stage Bed Catalyst Combination System[J]. CATALYSIS LETTERS,2015,145(2):620-630.
APA Guo, Haijun.,Li, Shanggui.,Peng, Fen.,Zhang, Hairong.,Xiong, Lian.,...&Chen, Xinde.(2015).Roles Investigation of Promoters in K/Cu-Zn Catalyst and Higher Alcohols Synthesis from CO2 Hydrogenation over a Novel Two-Stage Bed Catalyst Combination System.CATALYSIS LETTERS,145(2),620-630.
MLA Guo, Haijun,et al."Roles Investigation of Promoters in K/Cu-Zn Catalyst and Higher Alcohols Synthesis from CO2 Hydrogenation over a Novel Two-Stage Bed Catalyst Combination System".CATALYSIS LETTERS 145.2(2015):620-630.
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