DOI: 10.1016/j.jcou.2018.05.001
Scopus记录号: 2-s2.0-85047324706
论文题名: Carbon dioxide assisted toluene side-chain alkylation with methanol over Cs-X zeolite catalyst
作者: Seo D.-W. ; Rahma S.T. ; Reddy B.M. ; Park S.-E.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 26 起始页码: 254
结束页码: 261
语种: 英语
英文关键词: Carbon dioxide
; Ethylbenzene
; Methanol
; Styrene
; Toluene
; Zeolite Cs-X
Scopus关键词: Alkylation
; Catalysts
; Chains
; Chemical shift
; Ethylbenzene
; Methanol
; Styrene
; Toluene
; Water gas shift
; Zeolites
; Alpha methylstyrene
; Basic catalysts
; High selectivity
; Product selectivities
; Product streams
; Reverse water-gas shift reaction
; Side-chain alkylation
; Zeolite catalyst
; Carbon dioxide
英文摘要: Zeolite Cs-X is an acknowledged representative basic catalyst useful for side-chain alkylation of toluene with methanol. In spite of numerous investigations, still there has been long lasting challenge for achieving high selectivity for side-chain alkylated products rather than ring alkylated products. In an effort to improve the yields of side-chain alkylated products, CO2 was introduced during the toluene side-chain alkylation with methanol at 425 °C over Cs loaded faujasite catalyst. The CO2 addition facilitated in removing the formed hydrogen by reverse water-gas shift reaction and enhanced the product yield. Interestingly, CO2 addition helped in obtaining higher yields of side-chain alkylation products including styrene/ethylbenzene and α-methylstyrene/iso-propylbenzene. The CO2 introduction resulted in less H2 formation in the product stream during the reaction. Mesoporosity was also introduced to the zeolite X to improve the activity and product selectivity. © 2018 Elsevier Ltd. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111828
Appears in Collections: 气候减缓与适应
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作者单位: Laboratory of Nano-Green Catalysis, Nano Center for Fine Chemicals Fusion Technology, Department of Chemistry, Inha University, Incheon, 402-751, South Korea; Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500 007, India
Recommended Citation:
Seo D.-W.,Rahma S.T.,Reddy B.M.,et al. Carbon dioxide assisted toluene side-chain alkylation with methanol over Cs-X zeolite catalyst[J]. Journal of CO2 Utilization,2018-01-01,26