Encontro de Energia no Meio Rural

Abstract

CAPOBIANCO, Gino, COUTINHO, Aparecido dos Reis and LUENGO, Carlos Alberto. Preparação de carvões ativados com poros de dimensões nanométricas a partir de precursores de biomassa. In Procedings of the 5th Encontro de Energia no Meio Rural, 2004, Campinas (SP) [online]. 2004 [cited 10 October 2024]. Available from: <http://www.proceedings.scielo.br/scielo.php?script=sci_arttext&pid=MSC0000000022004000200034&lng=en&nrm=iso> .

Here are reported preliminary tests using pinnus wood, mesocarpo of green coconut and macadâmia shell. They are carbonized and later physically activated with CO₂ or chemically with ZnCl₂. The resulting activated carbons (AC) are charecterized with scanning electronic microscopy, the BET method for determination of the specific surface area-ASE, real density-DR, helium picnometry among others. The results indicate macadâmia shell originates better AC, with average micropores in the range of 1,2-1,6 nm, apparent density of 1,08 g/cm³, and ASE-BET 1400m²/g. Then, these AC have the possibility to be applied in NG storage.