BioChem - DOS

The use of (green field) biomass pretreatment liquor for fermentative butanol production and the catalytic oxidation of biobutanol

Chemical engineering research & design : transactions of the Institution of Chemical Engineers

Yang, M.; Kuittinen, S.; Keinanen, M.; Vepsalainen, J.; Romar, H.; Tynjala, P.; Lassi, U.; Pappinen, A.

In this study, pretreatment liquor of acid-stored green and yellowish barley silage was used for fermentative acetone-butanol-ethanol (ABE) production. Further, the catalytic oxidation of biobutanol over Pt catalysts was studied to investigate the behaviour of butanol as a fuel in the combustion engine. After the hydrothermal treatment of green and yellowish barley silage followed by enzymatic hydrolysis, approximately 88% and 100% of the available sugars were recovered, respectively. Batch fermentations of pretreatment barley silage liquor, supplemented with gelatinised barley grain, showed good fermentability with total ABE concentrations of 9.0g/L and 10.9g/L. Butanol yields of 0.20, 0.17 and ABE yields of 0.28, 0.26 (g/g monosaccharide) were obtained, respectively. In catalytic activity measurements, the conversion of biobutanol became appreciable in the 120-140<SUP>o</SUP>C range, whereas conversions greater than 95% were obtained over 200<SUP>o</SUP>C. Selectivities were also high, although formation of by-products, such as butyraldehyde, was observed.

2014

The Institution ; distributed by Pergamon

0263-8762

1744-3563

92

8

pp.1531-1538

10.1016/j.cherd.2014.01.015

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART69846891

Green field biomass; Silage; Pretreatment; Fermentable sugars; Biobutanol; Catalytic oxidation; Biofuel