View
1
Download
0
Category
Preview:
Citation preview
1
Alternative fuel
What is alternative fuel?• Fuel made from materials that would
otherwise be disposed of
• Solid Recoverable Fuel (SRF) is what I want
to talk about
• There are also bio-fuels that are converted to
gas in anaerobic digesters (animal, food and
farm waste, etc.)
• Bio-fuels such as wood, peanut shells, etc.
What is SRF?
• Anything that is in the waste stream that has
caloric value and is free of chlorine (PVC for
example) and harmful elements
• SRF also has to be low in moisture (<18%)
• High and consistent BTU value (>10,000)
• Consistent in size (<1” or <2”)
Thermal useCement/lime kilns
Calciner 2” minus 3D or 2D
Main burner 1” minus for 2D
1/2” minus for 3D
Power generation
Fluidized bed 4” minus for 2D or 3D
Conversion technologiesGasifier 2” minus for 2D and 3D
Depolarization ½” minus
Who uses SRF
2DMaterial is flat in nature. Burns quick and has
little mass.
3DMaterial is cube like. Burns slower and has
significant more mass.
Two types of fractions
Example of dry SRF
Alternative fuel
manufacturing
Why call it “manufacturing”?
Needs to meet specifications
This is an example of an EPA
certified fuel that is
considered a “non-waste
fuel”
Why call it “manufacturing”?
The process requires:
• Floor sorting to remove undesirable materials and
to feed an appropriate recipe
• Primary shredding
• Screening and sorting to remove inerts, metals and
chlorine
• Secondary shredding
• Drying if moisture is above 20%
Primary shredder
Shredding of untreated waste
Output <12”. Smaller is
possible, but not practical for a
high rate of production
Screening and sorting
This could be as simple as a magnet and wind sifter,
or a full blown MRF
MSW typically requires a MRF
Secondary Shredder
Shredding of pre-treated material
for the production of alternative fuels
Compact RDF line
Primary Shredder
Heavy Fraction
Separator
Final
Shredder
Compact RDF line
Lindner-Recyclingtech GmbH
A-9800 Spittal/Drau · Villacher Straße 48
Tel.: +43 4762 2742-0 · Fax: DW 32
office@l-rt.com · www.l-rt.com
Thank you
for your attention!
Lindner America LLC
9321 Focal Point
Raleigh, NC 27617
info@l-rt.us · www.l-rt.us - (919)783-7719
Recommended