DOI: 10.1016/j.jcou.2017.06.019
Scopus记录号: 2-s2.0-85022212397
论文题名: Accelerated CO2 capture in hybrid solvent using co-immobilized enzyme/complex on a hetero-functionalized support
作者: Sahoo P.C. ; Kumar M. ; Singh A. ; Singh M.P. ; Puri S.K. ; Ramakumar S.S.V.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2017
卷: 21 起始页码: 77
结束页码: 81
语种: 英语
英文关键词: Carbon dioxide capture
; Carbonic anhydrase
; Co-immobilization
; Heterofunctional support
; Hybrid solvent
Scopus关键词: Carbon
; Carbon dioxide
; Carbonic anhydrase
; Desorption
; Zinc
; Carbon dioxide capture
; Coimmobilization
; Desorption kinetics
; Drop experiments
; Functionalized
; Immobilized enzyme
; Initial activity
; Low temperature desorption
; Solvents
英文摘要: There has been increasing interest in the development of solvent systems for efficient and less energy intensive CO2 capture and desorption. In this work, we have developed a hybrid solvent system (30 wt.% MEA + 7.5 wt% PZ + 15wt% K2CO3) containing a thermo-stable carbonic anhydrase (CA) and Zn complex (Zn-Im) together on a hetero-functional support (HFS=CaCO3/H3BO3/SiO2) (termed as CA/Zn-Im: HFS). The hybrid solvent containing CA/Zn-Im: HFS exhibit excellent gravimetric CO2 uptake (21.65 wt%) over the neat hybrid solvent (13.75 wt%). Gravimetric and pressure drop experiments confirmed that HFS and Zn-Im plays key role in improving the CO2 capture activities of CA in hybrid solvent. Low temperature desorption (90 °C) suggested that the hybrid solvent containing CA/Zn-Im: HFS has 1.57 times higher desorption kinetics compared to the neat hybrid solvent. Moreover, CA was highly stable in the hybrid solvent medium and could be reused for 15 consecutive cycles with retention of 90% of its initial activity. The development in various key aspects of CO2 capture suggested that the hybrid solvent with CA/Zn-Im: HFS is an efficient solvent system to improve conventional amine based scrubbing technology. © 2017 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/52646
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Sahoo P.C.,Kumar M.,Singh A.,et al. Accelerated CO2 capture in hybrid solvent using co-immobilized enzyme/complex on a hetero-functionalized support[J]. Journal of CO2 Utilization,2017-01-01,21