Abstract:
Banana stem fiber waste has the potential to be used as a raw material manufacture of
activated carbon using 0,5M KOH chemical activator. Coin production carbon begins
with a gain of banana stem fiber, drying with sun radiation and 110°C oven, precarbonized,
milled using mortar and ball milling, sifting using a 60 μm sieve,
chemical activation with 0,5M KOH, carbon coin minting and pyrolysis integrated.
Coin samples through one step integrated pyrolyzed by the carbonization process
from room temperature up to 600° in a gaseous N2 environment and physical
activation with temperature of 850° in a CO2 gas environment. The integrated
pyrolysis process affects the resulting carbon coin. This result is verified by the
presence of shrinkage mass, diameter and thickness of carbon coins after pyrolysis
process. Analysis results density shows a significant decrease, where is the density
value of the coin carbon before pyrolysis is 0.91 g/cm3 and after the pyrolysis process
undergoes decreased to 0.42 g/cm3
