Title :
Characteristic study on biomass derived flyash
Author :
Lianming, Li ; Chunjiang, Yu ; Jisong, Bai ; Xingliang, Li ; Wei, Gao
Author_Institution :
State Key Lab. of Clean Energy Utilization, Zhejiang Univ., Hangzhou, China
Abstract :
In this study the most important chemical and physical properties of three kinds of fly ash originating from the circulating fluidized boiler incinerating agriculture and forest residues (i.e.rice husk, straw, wood chips, sawdust and bark) at a power plant (12+15MW) in Jiangsu province of China is determined The study clearly show that fly ash is fine (0.001-0.2 mm), and have poor specific surface area (about 5 m2/g). The mineral composition is SiO2, CaCO3, KCl. The fly ash is strong alkaline, and nutrient elements are enriched in the fly ash. The total concentrations of Cd, Hg, Pb below the limit values, therefore the fly ash can be used as fertilizer, but care should be taken.
Keywords :
boilers; chemical engineering; fertilisers; fluidised beds; fly ash; renewable materials; CaCO3; Cd; China; Hg; Jiangsu province; KCl; Pb; SiO2; alkaline; biomass derived fly ash; chemical properties; fluidized boiler; forest residues; mineral composition; physical properties; power plant; Biomass; Fly ash; Lead; Mercury (metals); X-ray scattering; biomass; chemical and physical properties; circulating fluidized bed; fly ash; heavy metals;
Conference_Titel :
Electric Information and Control Engineering (ICEICE), 2011 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-8036-4
DOI :
10.1109/ICEICE.2011.5776930