Simultaneous enzymatic esterification and ester extraction in Pickering emulsions for the recovery of butanol from fermentation broth

被引:0
作者
Feng, Yaoyao [1 ]
Carrette, Pierre-Louis [2 ]
Dalmazzone, Christine [1 ]
Jourdier, Etienne [1 ]
机构
[1] IFP Energies Nouvelles, 1& 4 Ave Bois Preau, F-92852 Rueil Malmaison, France
[2] IFP Energies Nouvelles, Rond Point Changeur Solaize, BP 3, F-69360 Solaize, France
关键词
LIQUID-LIQUID-EXTRACTION; SITU PRODUCT RECOVERY; CATALYZED ESTERIFICATION; INTERFACIAL CATALYSIS; ETHANOL; ALCOHOLS; SOLVENT; LIPASE; ISOPROPANOL; BIOBUTANOL;
D O I
10.1039/d4re00625a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The recovery of biobutanol from highly diluted aqueous fermentation broth usually suffers from intensive energy consumption. In this study, we developed a Pickering emulsion system stabilized by silica nanoparticles for the rapid and efficient recovery of low concentrations of butanol (<20 g L-1) from fermentation broth in the form of esters. Each droplet in the emulsion system serves as a microreactor for enzymatic esterification of butanol in the water phase, and the ester product is spontaneously extracted to the oil phase, thereby promoting the esterification reaction. The system offers a significantly larger interfacial area and a 2-5 times improvement in reaction rate compared to the biphasic system. Under optimal conditions, the conversion and extraction of butanol from the fermentation broth into butyl butyrate achieved a yield of 79% in the presence of a Pickering emulsion. This study presents a sustainable and efficient approach for the recovery of biobased butanol.
引用
收藏
页码:1606 / 1614
页数:9
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