Karakteristik Torrefaksi dan Densifikasi Limbah Tandan Kosong Kelapa Sawit
Abstract: Energy demand
increases continuously due to the growth of industries. Most industries still
rely on fossil fuel that its price commonly increases and the deposit in the universe
decreases since it is not renewable resource. Indonesia is the largest palm oil
producer in the world that has potential abundance biomass of empty fruit bunch
(EFB) of oil palm. It can be alternative energy source. The EFB is commonly
used as fuel for heat source of boiler jn the palm oil plant. Most applications
were by conventional combustion process that has disadvantage of low energy
value. The EFB was only chopped and grinded, and then dried prior to combustion
process. This study investigates improvement of energy quality of EFB through
torrefaction (or light pyrolysis) and densification process. The EFB was chopped in the small size and
grinded in the form of fiber, then dried. The EFB fiber in small slices was
pressed in a small steel tube and heated in the range of 200-300°C. The
variables of study were duration and temperature of process. The initial heat
value of EFB was 18,241 MJ/kg that slightly lower than its of kernel shell heat
value 19.955 MJ/kg. The water content were found 6.28% and 4.31% for EFB and
kernel shell respectively. Results have
shown that torrefaction and densification have improved the calorific value of
EFB in the range of 6.58-16.71% of its initial value. On the other hand, the energy yield has
decreased to 97.54, 97.26 and 93.76% of its initial energy yield for
torrefaction temperature of 200, 250 and 300°C respectively.
Penulis: Maryudi
Kode Jurnal: jpkimiadd140638
