Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
681798 | Bioresource Technology | 2011 | 7 Pages |
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/wdry-biomass. This oil was converted into biodiesel with a 8.7 ± 1% w/wdry-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/wdry-biomass) and 28 ± 2% w/wdry-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.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
Cristian Torri, Chiara Samorì, Alessio Adamiano, Daniele Fabbri, Cecilia Faraloni, Giuseppe Torzillo,