 Study of hydrochar and process water from hydrothermal carbonization of sea lettuceAnkita Shrestha, Bishnu Acharya and Aitazaz A. Farooque Renewable Energy, 2021, vol. 163, issue C, 589-598 Abstract: Excessive growth of macroalgae like sea lettuce causes problems in the aquatic environment by creating an anoxic event. Algae have been gaining attention in production of biofuel and other chemical products through biochemical process, which requires drying. In this research, hydrothermal carbonization process is used for studying the potential utilization of sea lettuce to produce products for application in fuel and agriculture. The reaction was carried out at four temperatures of 150 °C, 180 °C, 200 °C, 220 °C for the residence time of 0.5,1 and 2 h. Hydrochar obtained had heating value in the range of 13.4–20.2 MJ kg−1 and higher carbon content as compared to raw sea lettuce. The analysis of the process water showed recovery of nutrients. The co-digestion of process water with food waste at 37 °C increased the production of gas till 10 days. The research showed that sea lettuce is a promising feedstock for hydrothermal carbonization to produce value-added products. Keywords: Hydrothermal carbonization; Hydrochar; Process water; Sea lettuce; Biogas (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:163:y:2021:i:c:p:589-598 DOI: 10.1016/j.renene.2020.08.133 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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