Produção, caracterização e avaliação da capacidade adsortiva de carvões ativados em forma de briquete

Abstract

Activated carbons briquette shaped were prepared from Candeia wood waste, generated in the extraction of α-bisabololoil process. The material was briquetted, carbonized and activated with CO2, varying the tempera-ture (700-900°C) and activation time (1-3 hours). The characterization of the activated carbons were per-formed by: elemental analysis (CHN-O), analysis of the functional groups (Boehm titration), Burn-off, esti-mated BET surface area, iodine index, calculation of surface area with methylene blue, adsorption tests with methylene blue (MB) and phenol and mechanical resistance (IRI).The results showed that increasing temper-ature and time of activation promoted an increased in the surface area, pore volume, basicity and adsorption capacity of AM and phenol.