Applying Macroalgal Biomass as an Energy Source: Utility of the Baltic Sea Beach Wrack for Thermochemical Conversion

Autor: Zane Vincevica-Gaile, Varvara Sachpazidou, Valdis Bisters, Maris Klavins, Olga Anne, Inga Grinfelde, Emil Hanc, William Hogland, Muhammad Asim Ibrahim, Yahya Jani, Mait Kriipsalu, Divya Pal, Kaur-Mikk Pehme, Merrit Shanskiy, Egle Saaremäe, Jovita Pilecka-Ulcugaceva, Armands Celms, Vita Rudovica, Roy Hendroko Setyobudi, Magdalena Wdowin, Muhammad Zahoor, Hani Amir Aouissi, Andrey E. Krauklis, Ivar Zekker, Juris Burlakovs
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Sustainability; Volume 14; Issue 21; Pages: 13712
ISSN: 2071-1050
DOI: 10.3390/su142113712
Popis: 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.
Databáze: OpenAIRE