Research on utilization for Biomass Source Hachinohe National College of Technology （ HNCT) Department of Civil and Environment engineering Hasegawa Yuri

Content 1. Background and Purpose 2. Research content ・ woody resources ・ BTL ・ potential quantity of woody biomass ・ proposal of utilization in Hachinohe 3. Conclusion

Utilize Unused Forest Resources

Woody biomass … occurred on the seashore etc. incineration and industrial waste treatment ・ Prepare the Biomass plantation obtain resource quantitatively ・ Liquefied fuel generation technology be changed into electric power and heat now plan We should use effectively

Keywords ・ Carbon-neutral ・ Woody biomass ・ The electricity generation by biomass

Investigation and examination content 1. Estimation of potential amount of woody biomass resources in Aomori Prefecture 2. The feature of woody biomass power generation, and presumption of potential quantity 3. The feature of Biomass-to-Liquid technics (BTL), and presumption of potential quantity 4. Proposal what use in Hachinohe-city

Woody biomass power generation Energy potential quantity of trees or grass = (Weight of a driftwood, pruning branch and Grass cutting generate) × Net calorific value × (1 － Moisture content) Net calorific value: Driftwood and pruning branch 10,390MJ/t Grass cutting 13,950MJ/t Moisture content: Driftwood and pruning branch 36.2 ％ Grass cutting 15.8 ％ 1MJ=0.278kWh

CO 2 Emissions CO 2 Emissions (kg-CO 2 ) = Amount of power used (kWh) × Emission factor (kg-CO 2 /kWh) The Emission factor: kg-CO 2 /kWh

Aomori Prefecture Aseishi dam Takase river Aomori office

Woody biomass recovery quantity and CO 2 emissions AdministratorKind Recovery quantity Electric powerHeat (kN/year) Expected extraction (MWh) CO 2 Emissions (kN) Expected extraction (MWh) CO 2 Emissions (kN) Aomori river national highway office Driftwood 5, , ,859 Aseishi river office Driftwood 2, Takase river office Pruning branch Grass cutting 3, , ,998 Sum total 11, ,9471,0174,715 The investigation of recovery quantity: year (track record for five years)

The manufacturing process of BTL

Aged deterioration of woody resources ( )

Aged deterioration of resources IndustrialWoodChipsResidues , ,0517, , ,3747, , ,4357, , ,6567, ,709965,2016, ,619924,6575, ,193884,6996,294 (1,000m 3 )

Presumption of the potential quantity of a crude oil equivalent (BTL) IndustrialWoodChipsResidues (10,000kL)

The utilization proposal of woody biomass (Hachinohe-Port)

Conclusion 1. It is important for Japan to use woody biomass as energy resources. 2. Aomori is blessed with nature and holds many forests. Exploitation of woody biomass resources is maintainable energy resources. 3. We should coexist with nature, which is important to utilization of them.

Thank you.