Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/31811
Title: Experimental studies on a two-step fast pyrolysis-catalytic hydrotreatment process for hydrocarbons from microalgae (Nannochloropsis gaditana and Scenedesmus almeriensis)
Authors: Priharto, Neil
Ronsse, Frederik
Prins, Wolter
CARLEER, Robert 
Heeres, Hero Jan
Issue Date: 2020
Publisher: ELSEVIER
Source: FUEL PROCESSING TECHNOLOGY, 206 (Art N° 106466)
Abstract: Two microalgae species (marine Nannochloropsis gaditana, and freshwater Scenedesmus almeriensis) were subjected to pyrolysis followed by a catalytic hydrotreatment of the liquid products with the objective to obtain liquid products enriched in hydrocarbons. Pre-dried microalgae were pyrolyzed in a mechanically stirred fluidized bed reactor (380 and 480 degrees C) with fractional condensation. The heavy phase pyrolysis oils were hydrotreated (350 degrees C and 15 MPa of H-2 pressure for 4 h) using a NiMo on alumina catalyst. The pyrolysis liquids after pyrolysis and those after catalytic hydrotreatment were analyzed in detail using GC-MS, GC x GC-MS, and 2D HSQC NMR. The liquid products are enriched in aromatics and aliphatic hydrocarbons and, as such have a considerably lower oxygen content (1.6-4.2% w/w) compared to the microalgae feeds (25-30% w/w). The overall carbon yield for the liquid products was between 15.6 and 19.1% w/w based on the initial carbon content of the algae feedstock.
Notes: Heeres, HJ (corresponding author), Univ Groningen, Dept Chem Engn, ENTEG, Nijenborgh 4, NL-9747 AG Groningen, Netherlands.
h.j.heeres@rug.nl
Other: Heeres, HJ (correspond, ng author), Univ Groningen, Dept Chem Engn, ENTEG, Nijenborgh 4, NL-9747 AG Groningen, Netherlands. h.j.heeres@rug.nl
Keywords: Microalgae;Fast pyrolysis;Catalytic hydrotreatment;Deoxygenation;Hydrotreated oils
Document URI: http://hdl.handle.net/1942/31811
ISSN: 0378-3820
e-ISSN: 1873-7188
DOI: 10.1016/j.fuproc.2020.106466
ISI #: WOS:000538092600012
Rights: 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/).T
Category: A1
Type: Journal Contribution
Validations: ecoom 2021
Appears in Collections:Research publications

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