For the achievement of a low carbon society, there is one way of utilizing wood biomass fuel by the efficient use of forest resources, as the efforts for the prevention of global warming. This seems to be a promising business, since bark and wood flour which have not been used for buildings, furniture, and paper, can be fully utilized, but the serious problem is its supply capacity.
|Biomass Plant||Output Scale (MW)||Required Fuel (10,000 t/year)|
|In planning stage||1,120||1,290|
(From the website of Institute of Forest Energy, Inc. as of the end of November 2018)
The biomass fuel supply in Japan is anticipated to be only 4.2 million tons/year in 2020 by Forestry Agency, while the required amount for a year is supposed to be 63.9 million tons including plants under construction or in planning stage as well as plants in operation, which may actually result in extreme lack of biomass fuel.
Palm oil with the growing demand in the whole world, is mostly extracted from palm trees in Indonesia, Malaysia, and Thailand. The residue wastes such as PKS, EFB, and OPT have been just piled up out in the open and caused serious problems. Since a great amount of nutrition still remains in such PKS, a lot of cockroaches, flies, and fleas develop and grow inside the pile. Accordingly, rats and birds gather to prey on those insects, which will be the cause that rats carry disease-causing germs, and birds carry the avian flu.
EFB and OPT have a problem that they emit Dioxin and cause critical damage to the boilers when burnt since they contain Chlorine, Potassium and Natrium.The Indonesian government has been suffering from the problem of such waste disposal since EFB and OPT are easily ignited by lightning, which causes large-scale forest fires frequently.
Heap of PKS
Heap of EFB discarded from palm oil mills every day
Heap of OPT bearing no fruits after 25 years and cut down
There occurred a residents’ campaign against the biomass power plant constructed at a certain port of Japan. Thus, PKS, the residues disposed as wastes in Indonesia are being exported to Japan as biomass fuel. Usually, one shipment transports 20,000 tons of such residues from Indonesia to Japan. It usually takes 2.5 years to store up sufficient amount for one shipment, during which period of time, the residues are to be left just piled up in the open air. This is causing such serious problems as above.
If such residues containing harmful germs are imported to Japan as fuel, it will bring the serious danger of spreading the life-threatening viruses and bacteria throughout the country.
We transport PKS, EFB, and OPT from Tanjung Buton to our torrefaction plant in approximately 9 days.
Stockpile at Tanjung Buton
Loading to Barge from Jetty in Tanjung Buton
Shipment to Factory with 7,000 tons
Unloading from Barge to Jetty
Transportation from Jetty to Plant
PKS material unloaded from a barge will be once stored in a stockpile, then be pelletized after screening and torrefacion.