Pretreatment of the macroalgae Chaetomorpha linum for the production of bioethanol – Comparison of five pretreatment technologies》.pdfVIP

Bioresource Technology 140 (2013) 36–42 Contents lists available at SciVerse ScienceDirect Bioresource Technology journal homepage: www.elsevier .com/locate/biortech Pretreatment of the macroalgae Chaetomorpha linum for the production of bioethanol – Comparison of five pretreatment technologies Nadja Schultz-Jensen a,1, Anders Thygesen a,⇑, Frank Leipold b, Sune Tjalfe Thomsen a, Christian Roslander c, Hans Lilholt d, Anne Belinda Bjerre a,2 a Department of Chemical and Biochemical Engineering, Technical University of Denmark, Søltofts Plads 229, DK-2800 Lyngby, Denmark b Department of Physics, Anker Engelundsvej 1, Technical University of Denmark, DK-2800 Lyngby, Denmark c Department of Chemical Engineering, Lund University, Getingevägen 60, 22100 Lund, Sweden d Department of Wind Energy, Technical University of Denmark, Frederiksborgvej 399, 4000 Roskilde, Denmark h i g h l i g h t s Comparison of 5 pretreatment methods for Chaetomorpha linum for ethanol production. Pretreatment with wet oxidation and ball milling resulted in highest ethanol yield. Ball milling resulted in 64% higher ethanol yield compared to unpretreated C. linum. The ethanol yield was higher than found in literature for other macroalgae. a r t i c l e i n f o a b s t r a c t Article history: A qualified estimate for pretreatment of the macroalgae Chaetomorpha linum for ethanol production was Received 13 February 2013 given, based on the experience of pretreatment of land-based biomass. C. linum was subjected to hydro- Received in revised form 13 April 2013 thermal pretreatment (HTT), wet oxidation (WO), steam