BIOMASS & BIOFUELS A Renewable Energy Opportunity Dorothy Abbott Extension Agent, Renewable...
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Transcript of BIOMASS & BIOFUELS A Renewable Energy Opportunity Dorothy Abbott Extension Agent, Renewable...
BIOMASS&
BIOFUELS
A Renewable Energy Opportunity
Dorothy AbbottExtension Agent, Renewable Resources
University of Delaware Cooperative Extension
BIOMASSAny organic matter which
is available on a renewable basis including
forest residues, agricultural crops and
wastes, wood and wood wastes, animal wastes,
livestock operation residue, aquatic plants and municipal wastes
(USDOE)
Agricultural Biomass
Animal ‘Waste’ Biomass
Forest Residue Biomass
Municipal ‘Waste’ Biomass
“Yard Waste”vs.
“WOOD RESIDUE”
same definition … different meaning
Wood Residue
Wood residues are renewable resources that can be use for energy reducing the dependency on non-renewable resources (i.e., coal, petroleum)
Unlike NON-RENEWABLE natural resources…
RENEWABLES, once used, can be replaced in a
relatively short period of time or even used
continuously without depleting the resource.
HIGHHIGH Heat Values of Native Delaware Trees
Osage-OrangeHickoriesDogwoodPersimmonWhite oakRed oakWhite ashAmerican beech
MODERATEMODERATE Heat Values of Native Delaware Trees
American hollyGreen ashBlack walnutSweetgumBlack cherrySassafrasEastern redcedarBaldcypress
LOWLOW Heat Values of Native Delaware Trees
Yellow-poplarBlack willowEastern white pineEastern cottonwoodRed alderLarge-tooth aspenWeeping willow
Biomass/Biofuel Plantations
Short-rotation woody crop
Herbaceous energy crop
Hybrid willow Switchgrass
Other Biomass Plantation Benefits
Managing a Biomass/Biofuel
Plantation
Maintenance and Harvesting
is important!
BIOENERGY • The conversion of the complex
carbohydrates in organic matter into energy, either by using it directly as a fuel or by processing it into liquids and gasses that are more efficient.
’Bioenergy’ is really the result of taking organic
matter/renewable natural resources and changing this substance into a fuel
source or a BIOFUEL.
BIOFUEL
• Transportation• Heating• Cooling
Transportation
• Ethanol (E85) = produced from corn, trees or other cellulosic material
• Methane = captured from landfills and agricultural livestock facilities
• Biodiesel = created from soybean oil, yellow grease, etc.
Heating
• Biodiesel … home heating oils• Wood … fireplace, pellet stove
(during the 1870’s, wood was the dominate form of domestic energy…
then coal and petroleum became easier and cheaper to use for this purpose)
Cooling
• Chillers fueled by biofuels supply air conditioning needs…
(renewable fuel technologies are advancing rapidly to meet this
need)
Methods of obtaining
BIOFUELS
DIRECTCOMBUSTION
Where plant fiber is broken down and ignited to generate
steam heat
BIOCHEMICAL• Anaerobic digestion =
fermentation in absence of O2 to produce biogas
• Fermentation = using enzymes and yeast
THERMOCHEMICAL
• Gasification = partial combustion of plant fiber to yield gasses ignited for energy
• Liquefaction = heating and condensation of plant material to produce various by-products
… for BIOENERGY options to be utilized, they must first be
manufactured and made available at a cost
competitive/market price
In Conclusion
BIOMASS
… is a VALUABLE Bio-energy fuel!
THANK YOU!
For more information on bioenergy activities through the University of Delaware, feel free to contact me
@ (302) 730-4000 or email: [email protected]