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Preliminary investigation on the production of fuels and bio-char from Chlamydomonas reinhardtii biomass residue after bio-hydrogen production

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Sep 2011 Italy Publisher:Elsevier BVJournal:Bioresource Technology, volume 102, pages 8,707-8,713 (issn: 0960-8524,

Authors: TORRI, CRISTIAN; SAMORI', CHIARA; A. Adamiano; FABBRI, DANIELE; C. Faraloni; G. Torzillo;

doi: 10.1016/j.biortech.2011.01.064

pmid: 21345670

handle: 20.500.14243/132700 , 11585/107243

Preliminary investigation on the production of fuels and bio-char from Chlamydomonas reinhardtii biomass residue after bio-hydrogen production

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Abstract

The aim of this work was to investigate the potential conversion of Chlamydomonas reinhardtii biomass harvested after hydrogen production. The spent algal biomass was converted into nitrogen-rich bio-char, biodiesel and pyrolysis oil (bio-oil). The yield of lipids (algal oil), obtained by solvent extraction, was 15 ± 2% w/w(dry-biomass). This oil was converted into biodiesel with a 8.7 ± 1% w/w(dry-biomass) yield. The extraction residue was pyrolysed in a fixed bed reactor at 350 °C obtaining bio-char as the principal fraction (44 ± 1% w/w(dry-biomass)) and 28 ± 2% w/w(dry-biomass) of bio-oil. Pyrolysis fractions were characterized by elemental analysis, while the chemical composition of bio-oil was fully characterized by GC-MS, using various derivatization techniques. Energy outputs resulting from this approach were distributed in hydrogen (40%), biodiesel (12%) and pyrolysis fractions (48%), whereas bio-char was the largest fraction in terms of mass.

Country

Italy

Related Organizations

National Research Council
Italy
Alma Mater Studiorum University of Bologna
Italy
Institute of Ecosystem Study
Italy

Keywords

CHLAMYDOMONAS REINHARDTII; BIODIESEL; PYROLYSIS; HYDROGEN; BIOCHAR, Biomass, Bio-char, Temperature, Lipids, Carbon, Photobiology, Biofuels, Charcoal, Mutation, Microscopy, Electron, Scanning, Solvents, Thermodynamics, Biodiesel, Volatilization, Oils, Pyrolysis, Chlamydomonas reinhardtii, Biotechnology, Hydrogen

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