Hydrothermal liquefaction of Cyanidioschyzon merolae and the influence of catalysts on products
Autor: | Thinesh Selvaratnam, Peter J. Lammers, Tanner Schaub, Wayne A. Van Voorhies, F. Omar Holguin, Kodanda Phani Raj Dandamudi, Shuguang Deng, Nagamany Nirmalakhandan, Barry Dungan, Harvind K. Reddy, Tapaswy Muppaneni |
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Rok vydání: | 2016 |
Předmět: |
Environmental Engineering
020209 energy Bioengineering 02 engineering and technology 010501 environmental sciences 01 natural sciences Gas Chromatography-Mass Spectrometry Catalysis Biochar 0202 electrical engineering electronic engineering information engineering Microalgae Waste Management and Disposal 0105 earth and related environmental sciences Waste management biology Renewable Energy Sustainability and the Environment Chemistry Temperature Liquefaction Water General Medicine biology.organism_classification Hydrothermal liquefaction Cyanidioschyzon merolae Chemical engineering Elemental analysis Yield (chemistry) Gas chromatography |
Zdroj: | Bioresource technology. 223 |
ISSN: | 1873-2976 |
Popis: | This work investigates the hydrothermal liquefaction (HTL) of Cyanidioschyzon merolae algal species under various reaction temperatures and catalysts. Liquefaction of microalgae was performed with 10% solid loading for 30min at temperatures of 180-300°C to study the influences of two base and two acid catalysts on HTL product fractions. Maximum biocrude oil yield of 16.98% was obtained at 300°C with no catalyst. The biocrude oil yield increased to 22.67% when KOH was introduced into the reaction mixture as a catalyst. The algal biocrude and biochar has a higher heating values (HHV) of 32.22MJkg-1 and 20.78MJkg-1 respectively when no catalyst was used. Gas chromatography time of flight mass spectrometry (GC/TOFMS) was employed to analyze the biocrude oil composition, and elemental analysis was performed on the algae, biocrude and biochar samples. Analysis of the HTL aqueous phase revealed the presence of valuable products. |
Databáze: | OpenAIRE |
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