DOI: 10.1016/j.jcou.2018.02.001
Scopus记录号: 2-s2.0-85041377096
论文题名: Kinetic investigations of styrene carbonate synthesis from styrene oxide and CO2 using a continuous flow tube-in-tube gas-liquid reactor
作者: Rehman A. ; López Fernández A.M. ; Resul M.F.M.G. ; Harvey A.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 24 起始页码: 341
结束页码: 349
语种: 英语
英文关键词: CO2 Utilization
; Cycloaddition
; Flow chemistry
; Kinetic study
; Styrene carbonate
Scopus关键词: Activation energy
; Bromine compounds
; Carbon
; Carbon dioxide
; Carbonation
; Catalysts
; Chemical activation
; Cycloaddition
; Kinetic theory
; Kinetics
; Styrene
; Binary catalyst systems
; Continuous flow reactors
; Flow chemistry
; Kinetic investigations
; Kinetic study
; Reaction temperature
; Styrene carbonates
; Tetrabutylammonium bromide
; Zinc compounds
英文摘要: A continuous method of styrene carbonate (SC) synthesis from styrene oxide (SO) and carbon dioxide (CO2) is reported, using a semipermeable Teflon® AF-2400-based tube-in-tube gas-liquid reactor. The reaction was performed in the presence of and tetrabutylammonium bromide (TBAB) and zinc bromide (ZnBr2), acting as a highly efficient and economical homogeneous binary catalyst system. The exceptionally high permeation of CO2 through the membrane, combined with the high surface area to volume ratio in such continuous flow reactors resulted in complete SO conversion (100%) in a significantly reduced reaction time (tR) of 45 min at 120 °C and 6 bar of CO2 pressure. The effect of various operating conditions such as reaction temperature, CO2 pressure, residence time and catalyst molar ratio (ZnBr2/TBAB) was determined. Moreover, a detailed kinetic study of SC synthesis was carried out to determine the corresponding kinetic values (k and Ea) and activation parameters (ΔH‡, ΔS‡ and ΔG‡). Based on the experimental data, the reaction was found to be first-order in SO, TBAB and CO2 concentrations. The activation energy of SC synthesis in the presence of TBAB catalyst alone was calculated to be 55 kJ mol−1 over a temperature range of (90–120 °C), which was reduced to 32 kJ mol−1 as a result of using ZnBr2 as a co-catalyst. © 2018 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111939
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: School of Engineering, Merz Court, Newcastle University, Newcastle Upon Tyne, NE1 7RU, United Kingdom; Department of Chemical and Polymer Engineering, University of Engineering and Technology Lahore, Faisalabad Campus, Pakistan
Recommended Citation:
Rehman A.,López Fernández A.M.,Resul M.F.M.G.,et al. Kinetic investigations of styrene carbonate synthesis from styrene oxide and CO2 using a continuous flow tube-in-tube gas-liquid reactor[J]. Journal of CO2 Utilization,2018-01-01,24