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Wood Biomass Fuel faces the difficulty of keeping up with the demand

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 operation 1,280 1,470
Under construction 3,160 3,630
In planning stage 1,120 1,290
Total 5,560 6,390

The amount of biomass fuel supply in Japan in 2020 is expected to beonly 4.2 million tons/year.

Construction plans of power plants were given up due to the extreme lack of fuel, which isequivalent to the electricity loss of320MW.

(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.

The Residues of Palm Trees with serious problems

The residues of palm trees, which have been attracting intense attention as new biomass fuel, are difficult stuff to handle because of numerous problems piled up.

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.

PKS (Palm Kernel Shell)

Heap of PKS

EFB(Empty Fruit Bunch)

Heap of EFB discarded from palm oil mills every day

OPT(Old Palm Trunk)

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.

The Problems caused by the residues stored outdoors

  • ●Microbes contained in the residues of PKS are heat-resistant and hard to be killed.
  • ●The piled residues are becoming as a source to develop small insects, rats, and even wild birds.
  • ●Plague bacilli are developed inside the pile.
  • ●Fleas which convey plague bacilli exist inside the pile.
  • ●Hazardous mold exists inside the pile.
  • ●The avian flu and other hazardous viruses are developed inside the pile.

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.

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The Torrefaction Process of PKS, EFB, and OPT

We transport PKS, EFB, and OPT from Tanjung Buton to our torrefaction plant in approximately 9 days.

Stockpile at Tanjung Buton

Stockpile at Tanjung Buton

Loading to Barge from Jetty in Tanjung Buton

Loading to Barge from Jetty in Tanjung Buton

Shipment to Factory with 7,000 tons

Shipment to Factory with 7,000 tons

Unloading from Barge to Jetty at Batam

Unloading from Barge to Jetty

Transportation from Jetty to Plant

Transportation from Jetty to Plant

Carbonization factory

Carbonization factory

PKS material unloaded from a barge will be once stored in a stockpile, then be pelletized after screening and torrefacion.

パージ船から荷下ろしし、横持トラックへ積込み
パージ船から荷下ろしし、横持トラックへ積込み

Flow of Converting Business of Palm Residues into Biomass Fuel

パージ船から荷下ろしし、横持トラックへ積込み

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