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HIGROSCOPICITY OF CHARCOAL PRODUCED IN DIFFERENT TEMPERATURES

2016; UNIVERSIDADE FEDERAL DE LAVRAS; Volume: 22; Issue: 4 Linguagem: Inglês

10.1590/01047760201622032175

2317-6342

Ananias Francisco Dias Júnior, Lucas Pereira Pirola, Saly Takeshita, Artur Queiroz Lana, José Otávio Brito, Azarias Machado de Andrade,

Wood Treatment and Properties

ABSTRACT This research aimed to evaluate hygroscopicity of charcoal produced under four different final carbonization temperatures. For evaluation of hygroscopicity charcoal samples were conditioned in environments with controlled temperature and relative humidity, using saturated salt solutions. The final carbonization temperature significantly influenced the products yields and the properties of charcoal. The charcoal produced in the final temperature of 750 °C showed the highest adsorption capacity of water, indicated by the moisture content after conditioning, in the higher relative humidity environment. Correlations were observed between adsorbed moisture and the porosity of charcoal produced.