Combustion Behavior of Algal Biomass: Carbon Release, Nitrogen Release, and Char Reactivity

Autor:	Oskar Karlström, Rocky de Nys, Peter J. Ashman, Philip J. van Eyk, Daniel J. Lane, Maria Zevenhoven, David Lewis, Mikko Hupa
Rok vydání:	2013
Předmět:	biology Chemistry General Chemical Engineering Carbon fixation Energy Engineering and Power Technology Biomass chemistry.chemical_element biology.organism_classification Combustion Fuel Technology Nutrient Algae Environmental chemistry Oedogonium Tetraselmis Carbon
Zdroj:	Energy & Fuels. 28:41-51
ISSN:	1520-5029 0887-0624
DOI:	10.1021/ef4014983
Popis:	Recent focus on algae biomass as an alternative energy source can be attributed to building pressure for conservation of dwindling fossil fuels and reduced greenhouse gas emissions. Both micro- and macroalgae have many advantages over terrestrial plants, including typically faster growth rates and, therefore, higher rates of carbon fixation. This paper reports the combustion characteristics of a species of microalgae and two species of macroalgae under conditions that are relevant for the large-scale use of biomass for heat and other products. The tested species were Tetraselmis sp. (marine microalgae), Derbersia tenusissima (marine macroalgae), and Oedogonium sp. (freshwater macroalgae). Two variants of Oedogonium were tested. One variant was cultivated using standard nutrient additions, and the other variant was starved of essential nutrients. Carbon conversion to CO and CO2 and the release of N as NO were determined for the algae by oxidizing fixed-bed samples of each alga in air at 800 and 1000 °C. Th...
Databáze:	OpenAIRE
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