Enzymatically-boosted ionic liquid gas separation membranes using carbonic anhydrase of biomass origin

Bednár, András and Nemestóthy, Nándor and Bakonyi, Péter and Fülöp, László and Zhen, Guangyin and Lu, Xueqin and Kobayashi, Takuro and Kumar, Gopalakrishnan and Xu, Kaiqin and Bélafi-Bakó, Katalin (2016) Enzymatically-boosted ionic liquid gas separation membranes using carbonic anhydrase of biomass origin. Chemical Engineering Journal, 303. pp. 621-626. ISSN 1385-8947 (Unpublished)

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Abstract

Nowadays there is a huge demand for new and sustainable technologies aiming the reduction of the greenhouse gas, in particular carbon dioxide emission. In this work, enzymatically-boosted supported ionic liquid membrane (EB-SILM) was developed to permeate carbon dioxide with improved efficiency. Firstly, the selected biocatalyst, carbonic anhydrase (CA) was prepared and purified from spinach, a cheap plant biomass containing the enzyme of our interest. Afterwards, the CA enzyme preparation was used for SILM fabrication in order to test the properties towards enhanced carbon dioxide permeation over CH4, H2 and N2. The results indicate basically that EB-SILMs possess an increased ability to permeate CO2 in comparison with enzymeless controls and therefore, may be viewed as a promising approach e.g. towards enhanced CO2-capture bioprocesses.

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