Generation of electricity from FeCl3 pretreatment of rice straw using a fuel cell system

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This study explored a new approach to the pretreatment of lignocellulosic biomass using FeCl3 combined with a fuel cell system to generate electricity. After pretreatment, ferric iron (Fe3+), a strong catalyst in the hydrolysis of carbohydrate, was found to be reduced to ferrous iron (Fe2+) by means of the oxidation of xylose and lignin. Ferrous iron, as a fuel, was employed to the anode part of a fuel cell, generating power of 1110 mW/m(2). During the fuel cell operation, ferrous iron was completely removed through oxidation to ferric iron and precipitated out. The optimal conditions for the operation of the fuel cell were found to be a pH of 7.0 and ferrous iron concentration of above 0.008 M. These results clearly show that a fuel cell system could be used not only to remove ferrous iron from liquid hydrolysate, but also to produce electricity. (C) 2012 Elsevier Ltd. All rights reserved.
Publisher
ELSEVIER SCI LTD
Issue Date
2013-05
Language
English
Article Type
Article
Keywords

ENZYMATIC-HYDROLYSIS; ETHANOL FERMENTATION; STEAM EXPLOSION; TECHNOLOGIES; DEGRADATION; FEATURES; BIOMASS; XYLOSE; SUGARS

Citation

BIORESOURCE TECHNOLOGY, v.135, pp.635 - 639

ISSN
0960-8524
DOI
10.1016/j.biortech.2012.07.046
URI
http://hdl.handle.net/10203/255029
Appears in Collection
CE-Journal Papers(저널논문)
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