Abstract：
:The aim of this work was to study fast pyrolysis of three microalgae species in a continuous bench-scale conical spouted bed reactor at 500 °C. Bio-gas, bio-oil and bio-char yields have been determined and characterized by using GC, GC/MS, elemental analyzer and SEM. Bio-oil was the main product obtained through pyrolysis of microalgae. The non-condensable gaseous stream is made up of mainly hydrogen, carbon monoxide and carbon dioxide, apart from other light hydrocarbons detected in lower concentration, as are methane, ethane, ethylene, propane and propylene. The compounds identified in the bio-oil have been categorized into hydrocarbons, nitrogen containing compounds, ketones, alcohols, acids, lactones, phenols and aldehydes. The nitrogen and carbon contents of the microalgae bio-chars are higher than those for bio-chars derived from other biomasses. Pyrolysis improved the morphology and porous structure of microalgae. Finally, the mechanism involving microalgae pyrolysis has been approached and the main reaction pathways have been proposed.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Azizi K,Keshavarz Moraveji M,Arregi A,Amutio M,Lopez G,Olazar Mdoi
10.1016/j.biortech.2020.123561subject
Has Abstractpub_date
2020-09-01 00:00:00pages
123561eissn
0960-8524issn
1873-2976pii
S0960-8524(20)30833-6journal_volume
311pub_type
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