DICP OpenIR
Subject Area物理化学
Transformation of Isobutyl Alcohol to Aromatics over Zeolite-Based Catalysts
Yu, Lili1,2; Huang, Shengjun1; Zhang, Shuang1; Liu, Zhenni1; Xin, Wenjie1; Xie, Sujuan1; Xu, Longya1; Huang SJ(黄声骏); Xu LY(徐龙伢)
KeywordIsobutyl Alcohol Zeolites Aromatization Zinc Species
Source PublicationACS CATALYSIS
2012-06-01
DOI10.1021/cs300048u
Volume2Issue:6Pages:1203-1210
Indexed BySCI
SubtypeArticle
DepartmentDNL08
Funding ProjectDNL0804
Contribution Rank1,1
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
WOS KeywordPROPANE AROMATIZATION ; ZSM-5 ZEOLITES ; HYDROCARBONS ; ACTIVATION ; CONVERSION ; HZSM-5 ; ALKANES ; ETHANE ; ACID ; ZN
AbstractOne-step transformation of isobutyl alcohol to aromatics (benzene, toluene, and xylene) has been studied in a gas phase, fixed-bed reactor system over several purely acidic zeolites and zeolite-supported metal catalysts. ZSM-5 zeolites give higher aromatics yields (similar to 42 wt %) among the evaluated zeolites, and the Si! Al ratios (Si/Al = 13-43) of ZSM-5 slightly influence their catalytic performances. During the transformation of isobutyl alcohol, large amounts of short alkanes (mainly propane and butane isomers) are also generated on the acidic ZSM-S. To improve the conversion to aromatics, several metal species (Zn, Ga, Mo, La, Ni, Ag, and Pt) are supported on the ZSM-5. The enhancements in aromatics yields (similar to 60wt %) are observed only on the Zn/ZSM-5 catalysts. The incorporation of Zn species preferentially decreases the strong-strength Bronsted acidity and, thus, suppresses the cracking to C-3 fragments. Moreover, mainly the Zn species at the exchange sites facilitate the recombinative desorption of H-2 and, hence, enhance the reactions toward aromatics. Through these effects, Zn/ZSM-5 catalysts exhibit the remarkably promoted formation of toluene and xylene and inhibit the generation of undesired alkanes products.
Language英语
WOS IDWOS:000304682600034
Citation statistics
Cited Times:41[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/117766
Collection中国科学院大连化学物理研究所
Corresponding AuthorHuang SJ(黄声骏); Xu LY(徐龙伢)
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Yu, Lili,Huang, Shengjun,Zhang, Shuang,et al. Transformation of Isobutyl Alcohol to Aromatics over Zeolite-Based Catalysts[J]. ACS CATALYSIS,2012,2(6):1203-1210.
APA Yu, Lili.,Huang, Shengjun.,Zhang, Shuang.,Liu, Zhenni.,Xin, Wenjie.,...&徐龙伢.(2012).Transformation of Isobutyl Alcohol to Aromatics over Zeolite-Based Catalysts.ACS CATALYSIS,2(6),1203-1210.
MLA Yu, Lili,et al."Transformation of Isobutyl Alcohol to Aromatics over Zeolite-Based Catalysts".ACS CATALYSIS 2.6(2012):1203-1210.
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