research on utilization for biomass source hachinohe national college of technology ( hnct)...
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Research on utilization for
Biomass SourceHachinohe National College of Technology ( HNCT)Department of Civil and Environment engineering
Hasegawa Yuri
Content1. Background and Purpose2. Research content ・ woody resources ・ BTL ・ potential quantity of woody biomass ・ proposal of utilization in Hachinohe3. 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 andexamination 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
CO2 Emissions
CO2 Emissions (kg-CO2)
= Amount of power used (kWh) × Emission factor (kg-CO2/kWh)
The Emission factor: 0.473 kg-CO2/kWh
Aomori Prefecture
Aseishi dam
Takase river
Aomori office
Woody biomass recovery quantityand CO2 emissions
Administrator Kind
Recovery quantity Electric power Heat
(kN/year)
Expected extractio
n(MWh)
CO2
Emissions(kN)
Expected extractio
n(MWh)
CO2
Emissions(kN)
Aomori river
national highway
office
Driftwood 5,331 251 1,162 401 1,859
Aseishi river office
Driftwood 2,185 103 476 164 762
Takase river office
Pruning branch 274 13 60 21 96
Grass cutting 3,234 269 1,249 431 1,998
Sum total 11,024 636 2,947 1,017 4,715The investigation of recovery quantity: 2000-2004 year
(track record for five years)
The manufacturing process of BTL
Aged deterioration of woody resources
(2004-2010)
Aged deterioration of resources
Industrial Wood Chips Residues
2004 15,615 114 4,051 7,803
2005 16,166 110 4,374 7,917
2006 16,609 105 4,435 7,608
2007 17,650 100 4,656 7,405
2008 17,709 96 5,201 6,554
2009 16,619 92 4,657 5,735
2010 17,193 88 4,699 6,294
(1,000m3)
Presumption of the potential quantity of a crude oil equivalent (BTL)
Industrial Wood Chips Residues
2004 69.9 0.512 18.1 34.9
2005 72.4 0.492 19.6 35.4
2006 74.3 0.470 19.9 34.1
2007 79.0 0.448 20.8 33.1
2008 79.3 0.430 23.3 29.3
2009 74.4 0.412 20.8 25.7
2010 77.0 0.394 21.0 28.2
(10,000kL)
The utilization proposal of woody biomass (Hachinohe-Port)
Conclusion1. 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.
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