Combustion behaviour of rice husk in a bubbling fluidised bed

A Study on High Performance Fine-Grained Concrete Containing Rice Husk Ash

“…RHA was produced by burning rice husk under proper temperature conditions in a simple incinerator prototype in Vietnam. It was designed based on the principle of the atmospheric bubbling fluidized bed (Armesto et al 2002). The obtained ash was ground in a ball mill.…”

57Fe Mössbauer spectroscopy investigations of iron phase composition in fluidized beds from the ELCHO power plant in Chorzów, Poland

“…The specifi city of fl uidized-bed furnaces enables combustion not only of traditional fuels, but also of other materials, such as: residues, post-fl otation waste and spoil (formed during the processes of the mining and enrichment of hard coal). Fluidized-bed boilers containing circulating fl uidized beds are the most common in combined heat and power plants in Poland and European countries, because they live up to high expectations concerning environmental protection [1][2][3]. Bottom ash (30-60%) following graining of 0.3-5.6 mm and fl y ash (40-70%) produced by dedusting devices over a wide range of graining (1-300 m) constitute waste from the technology of fl uidized-bed combustion.…”

Influência da segregação granulométrica e do emprego de aditivos de moagem na adequação de cinzas de casca de arroz como coproduto

“…A CCA geralmente apresenta em sua composição: dióxido de silício ou comumente denominada síli-ca (SiO 2 ), carbono (C), óxido de potássio (K 2 O), óxido fosfórico (P 2 O 5 ), óxido de cálcio (CaO) e em menores quantidades compostos de magnésio (Mg), Ferro (Fe) e Sódio (Na) [5]. A combustão da casca de arroz origina cinzas com alto teor de sílica, com formas estruturais variáveis (amorfa e/ou cristalina).…”