Bio-crude production through hydrothermal liquefaction of nannochloropsis microalgae via activated carbon-based catalysts

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Kohansal Komeil; Salimi Mohammad; Samakchi Soha; Tavasoli Ahmad; Bozorg Ali

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ISSN: 2588-4824

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Paper Information

Journal: Nashrieh Shimi va Mohandesi Shimi Iran Year:2023 | Volume:42 | Issue:1 Page(s): 351-359

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Information Journal Paper

Title

Bio-crude production through hydrothermal liquefaction of nannochloropsis microalgae via activated carbon-based catalysts

Author(s)

Keywords

Hydrothermal liquefactionQ4

Activated CarbonQ4

microalgaeQ4

NannochloropsisQ4

Abstract

In this present study, in order to achieve the high feedstock conversion and maximum yield of bio-crude, the operational parameters of Nannochloropsis sp. microalgae Hydrothermal liquefaction process such as temperature(270-310-350ºC), residence time (20-40-60 min) and feedstock ratio percentage (5-10-15 wt%) have been appropriately evaluated .Thereafter, three different Activated Carbon based catalysts (Co/AC, Zn/AC, Co-Zn/AC) have been manufactured. Catalytic experiments have been carried out on the obtained optimum condition of the HTL process. It has been proved by CHNS and GC-MS results that existence of all three different catalysts has a positive effect on quality and quantity of derived bio-crude, however, because of synergetic effect of Cobalt and Zinc in the bimetallic catalyst, hydrocarbon percentage which is the most favorable portion of achieved bio-crude was increased dramatically. Not only that, but higher mass content of microalgae devoted to bio-crude production (40.12 wt.%) alongside with lower gas and hydrochar percentage.

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