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Applying Macroalgal Biomass as an Energy Source: Utility of the Baltic Sea Beach Wrack for Thermochemical Conversion
Department of Environmental Science, University of Latvia, LV-1004 Riga, Latvia.ORCID iD: 0000-0003-2868-0434
Department of Biology and Environmental Science, Linnaeus University, 391 82 Kalmar, Sweden.
Department of Environmental Science, University of Latvia, LV-1004 Riga, Latvia.
Department of Environmental Science, University of Latvia, LV-1004 Riga, Latvia.ORCID iD: 0000-0002-4088-9348
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2022 (English)In: Sustainability, E-ISSN 2071-1050, Vol. 14, no 21, article id 13712Article in journal (Refereed) Published
Abstract [en]

Global resource limits and increasing demand for non-fossil energy sources have expanded the research on alternative fuels. Among them, algal biomass is designated as a third-generation feedstock with promising opportunities and the capability to be utilized for energy production in the long term. The paper presents the potential for converting beach wrack containing macroalgal biomass into gaseous fuel as a sustainable option for energy production, simultaneously improving the organic waste management that the coastline is facing. Beach wrack collected in the northern Baltic Sea region was converted by gasification technology applicable for carbon-based feedstock thermal recovery, resulting in syngas production as the main product and by-product biochar. Proximate and ultimate analysis, trace and major element quantification, detection of calorific values for macroalgal biomass, and derived biochar and syngas analysis were carried out. A higher heating value for beach wrack was estimated to be relatively low, 5.38 MJ/kg as received (or 14.70 MJ/kg on dry basis), but produced syngas that contained enough high content of CH4 (42%). Due to macroalgal biomass specifics (e.g., high moisture content and sand admixture), an adjusted gasification process, i.e., the combination of thermochemical procedures, such as mild combustion and pyrolytic biomass conversion, might be a better choice for the greater economic value of biowaste valorization

Place, publisher, year, edition, pages
2022. Vol. 14, no 21, article id 13712
Keywords [en]
beach cast; biomass conversion; biochar; gasification; seaweed; syngas; waste to energy
National Category
Environmental Engineering
Research subject
Energy- and Environmental Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-60379DOI: 10.3390/su142113712ISI: 000882674500001Scopus ID: 2-s2.0-85141867494OAI: oai:DiVA.org:mdh-60379DiVA, id: diva2:1706049
Available from: 2022-10-25 Created: 2022-10-25 Last updated: 2022-11-23Bibliographically approved

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Jani, Yahya

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Vincevica-Gaile, ZaneKlavins, MarisGrinfelde, IngaHanc, EmilIbrahim, Muhammad AsimJani, YahyaPehme, Kaur-MikkShanskiy, MerritHendroko Setyobudi, RoyZahoor, MuhammadAouissi, Hani AmirKrauklis, Andrey E.
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