DOI: 10.1016/j.jcou.2017.12.001
Scopus记录号: 2-s2.0-85037689530
论文题名: Evaluation of pectin-reinforced supported liquid membranes containing carbonic anhydrase: The role of ionic liquid on enzyme stability and CO2 separation performance
作者: Nemestóthy N. ; Bakonyi P. ; Németh Z. ; Bélafi-Bakó K.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 24 起始页码: 59
结束页码: 63
语种: 英语
英文关键词: Carbonic anhydrase
; CO2 separation
; Gas separation
; Ionic liquid
; Supported liquid membrane
Scopus关键词: Biocatalysts
; Carbon
; Carbon dioxide
; Carbonic anhydrase
; Enzyme activity
; Enzymes
; Ionic liquids
; Liquid membranes
; Liquids
; Membranes
; Nitrogen
; Reinforcement
; Separation
; Cellulose acetates
; CO2 separation
; Enzyme stability
; Gas separations
; Membrane process
; Supported liquid membrane
; Transmembrane pressures
; Upper Bound
; Gas permeable membranes
; Carbon Dioxide
; Enzymatic Activity
; Membranes
; Pectins
英文摘要: In this paper, pectin-reinforced, supported liquid membranes (SLMs) prepared with carbonic anhydrase (CA) were investigated for CO2/N2 separation. In the first part of the study, the effect of [Bmim][NTf2] ionic liquid (IL) – as possible solvent to fill the pores of cellulose acetate support during SLM fabrication – on enzyme activity was tested. It turned out that this particular IL caused rapid and severe loss of initial biocatalyst activity, which fact can be seen as a threat in the membrane process design. Afterwards, the stability of pectin-containing SLMs (containing CA but lacking the IL having adverse impact) was addressed and their improved resistance against higher transmembrane pressures (up to 7.2 bar) was found, representing an approx. 3-fold enhancement compared to their control. Thereafter, the performance of the membranes was tested under single and mixed gas conditions with carbon dioxide and nitrogen. Employing single gases, it was demonstrated that CA enzyme could notably increase CO2 permeability (from 55 to 93 Barrer), while that of N2 remained unchanged (1.6-1.7 Barrer). Thus, the highest CO2/N2 theoretical selectivity was attained as 54 using the pectin-reinforced SLMs enriched with CA biocatalyst. For comparison, the outcomes were plotted on the Robeson upper-bound. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111979
Appears in Collections: 气候减缓与适应
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作者单位: Research Institute on Bioengineering, Membrane Technology and Energetics, University of Pannonia, Egyetem ut 10, Veszprém, 8200, Hungary
Recommended Citation:
Nemestóthy N.,Bakonyi P.,Németh Z.,et al. Evaluation of pectin-reinforced supported liquid membranes containing carbonic anhydrase: The role of ionic liquid on enzyme stability and CO2 separation performance[J]. Journal of CO2 Utilization,2018-01-01,24