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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