Hydrothermal liquefaction of the brown macro-alga Laminaria Saccharina: Effect of reaction conditions on product distribution and composition

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The brown macro-alga Laminaria saccharina was converted into bio-crude by hydrothermal liquefaction in a batch reactor. The influence of reactor loading, residence time, temperature and catalyst (KOH) loading was assessed. A maximum bio-crude yield of 19.3. wt% was obtained with a 1:10 biomass:water ratio at 350°C and a residence time of 15. min without the presence of the catalyst. The bio-crude had an HHV of 36.5. MJ/kg and is similar in nature to a heavy crude oil or bitumen. The solid residue has high ash content and contains a large proportion of calcium and magnesium. The aqueous phase is rich in sugars and ammonium and contains a large proportion of potassium and sodium.

TidsskriftBioresource Technology
Sider (fra-til)4876-4883
Antal sider8
StatusUdgivet - 1 apr. 2011
Eksternt udgivetJa

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