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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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