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Realizing and Recognizing Syngas-to-Olefins Reaction via a Dual-Bed Catalyst
Ni, Youming1,2; Liu, Yong1,2; Chen, Zhiyang1,2,3; Yang, Miao1,2; Liu, Hongchao1,2; He, Yanli1,2; Fu, Yi1,2,3; Zhu, Wenliang1,2; Liu, Zhongmin1,2
Corresponding AuthorZhu, Wenliang(wlzhu@dicp.ac.cn) ; Liu, Zhongmin(liuzm@dicp.ac.cn)
Keywordheterogeneous catalysis syngas-to-olefins dual-bed catalyst ZnAlOx SAPO-34
Source PublicationACS CATALYSIS
2019-02-01
ISSN2155-5435
DOI10.1021/acscatal.8b04794
Volume9Issue:2Pages:1026-1032
Funding ProjectNational Natural Science Foundation of China[21606224]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
WOS KeywordSELECTIVE CONVERSION ; BIFUNCTIONAL CATALYSTS ; DIMETHYL ETHER ; SYNTHESIS GAS ; METHANOL ; HYDROCARBONS ; MECHANISM ; DESIGN ; HYDROGENATION ; CARBONYLATION
AbstractNowadays, a considerable progress in the syngas-to-olefins (STO) reaction has been made by physically mixed oxide-zeolite catalysts; however, contradictions concerning the reaction mechanism still exist. Although complete separation of the mixed catalysts should help to understand the STO reaction, it can result in lower CO conversion and selectivity of light olefins. Here, we report a stable and selective dual-bed STO catalyst ZnAlOx/SAPO-34, which contains a SAPO-34 molecular sieve packed below ZnAlOx oxide. C2-4 olefins in hydrocarbons can reach 77.0% with only 33.1% CO2 selectivity at 663 K. No significant deactivation is observed during a 100 h test. ZnAlOx itself can be used as a catalyst for the syngas-to-dimethyl ether (STD) reaction. Because the dual-bed catalyst presents similar reaction results and "hydrocarbon pool" intermediates to the mixed one, the STO reaction over a mixed catalyst can be understood as the combination of STD and MTO reactions regardless of catalytic behaviors and mechanisms.
Language英语
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS IDWOS:000458707000027
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/166055
Collection中国科学院大连化学物理研究所
Corresponding AuthorZhu, Wenliang; Liu, Zhongmin
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Engn Lab Methanol Olefins, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Ni, Youming,Liu, Yong,Chen, Zhiyang,et al. Realizing and Recognizing Syngas-to-Olefins Reaction via a Dual-Bed Catalyst[J]. ACS CATALYSIS,2019,9(2):1026-1032.
APA Ni, Youming.,Liu, Yong.,Chen, Zhiyang.,Yang, Miao.,Liu, Hongchao.,...&Liu, Zhongmin.(2019).Realizing and Recognizing Syngas-to-Olefins Reaction via a Dual-Bed Catalyst.ACS CATALYSIS,9(2),1026-1032.
MLA Ni, Youming,et al."Realizing and Recognizing Syngas-to-Olefins Reaction via a Dual-Bed Catalyst".ACS CATALYSIS 9.2(2019):1026-1032.
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