21 st annual conference
DESCRIPTION
21 st Annual Conference . Priorities, Possibilities and Pyrolysis the Product Stewardship of Tyres. Zero Waste New Zealand Ltd. Synopsis. Review the problem Current Issues Infrastructure needed in New Zealand Now we have a way….. Thoughts and figures on recycling tyres in New Zealand. - PowerPoint PPT PresentationTRANSCRIPT
21st Annual Conference
Priorities, Possibilities and Pyrolysis the
Product Stewardship of Tyres
Zero Waste New Zealand Ltd.
Synopsis
• Review the problem• Current Issues• Infrastructure needed in New Zealand• Now we have a way…..• Thoughts and figures on recycling tyres in New
Zealand.
Tyre numbers
At the end of June this year:2,306,921 cars23,391 rental cars7,855 taxis427,525 trucks19,067 buses28,703 tractors…….3,383,960 vehicles not including planes and
Sedgeways all with at least 4 wheels
Mosquito breeding utopia
Tyres are important because
• on-going and relentless volume,• real and potential harm to human life• good energy products being shredded and
dumped- energy sink x2• steel and carbon black replacing imports• jobs produced in the NZ market• emerging technology to market overseas
Current Issues
• Large numbers of small importers; no clear and co-operative choke point in the cycle.
• Public are used to a $ charge as they change vehicle tyres- not aware of final destination
• Extensive problems with legacy tyres- Swanson, Naike, Napier
• City Council Costs – Auckland $4000/ month • Export to Asia- Basel Convention
Times are a changing
• Recession- jobs, imports, buffer• Peak oil• Climate change• Consumerism• Emerging sustainability
Waste Tires are Shredded
and Loaded
Air lock____________
Pyrolysis tyre heated to 400-500 degrees Celcius
____________
Air Lock
Carbon and Steel
Steel
Carbon
Steel Mill
Carbon Black
Tyregone Pyrolysis Plant
Distillation Column
Oil
Tar
Road Marking
Heavy
Light
Used as energy
products
GasUsed to fuel plant
Tyre pyrolysis plant
Resources from end-of-life tyres/tonne of tyres
Products Amount Industrial Uses
Kiln burning Energy % Electrical power and heat
Ash component
Products Amount Industrial usesShredding Shredded tyres
Rubber chip60%Rubber crumb Car mats
Steel 30% Steel millNylon
Resources from Pyrolysis per tonne/tyresProducts Amount % Industrial
Uses Comment
Pyrolysis produces
Light Fuel Oil
350 Kgs of pyrolysate
oil
65%
White spirits
35%
Tar 1% Roading component
Gas 150Kgs Powering pyrolysis plant. Electrical generation
Steel 120 Kgs Recycle to steel mill
Carbon Char
380 Kgs Steel mill Replaces imported carbon
Current destinations of end-of-life tyres - Table 1Tyre
disposal form
Destination
Environmental Considerations
% use of resources within tyre
Other considerations
Tyres unchanged in form
Export Hazardous waste-outside the country!!
Basel convention
Farms and Fenders-
Easily and often burnt in situ when no longer used
Intermediary position- still in need of end of life processing.0%
Education needed
Landfill Trap air and float up whole
0% Illegal where other recovery processes exist?
Dumped on private or crown land
Fire and mosquito breeding ground
Damages land, becomes contaminated
Should become illegal
Current destinations of end-of-life tyres - Table 2Tyre
disposal form
Destination
Environmental Considerations
% use of resources within tyre
Other considerations
Shredded Landfill Contribution to leachate
Minus. Energy expended to deliver and bury
Should become illegal where other processes exist
Horse rinks Contribution to leachate ?
Chips for drainage channels
Contribution to run off?
Contamination of the waterway?
Chips for mat manufactureKiln burning (TDF)
Furnace temperature and scrubbers
Energy %Ash component?
Pyrolysis Produces- Steel and CarbonLight Fuel OilWhite spiritsTar and Gas
TYRE RECYCLING- THE MECHANICS
Tyre Producers
VehicleImporters
Tariff CollectedviaImporter code and tariff
Monies paid out. Rate dependant on the resources extracted
Tyre energy TDEShredding Farms and FendersChips for drainage Export Pyrolysis
How could we levy the tyres produced or imported into NZ?
• Customs code for tyres and imported vehicles- easiest- levy on
numbers or tonnes of raw materials through customs directly to ZWNZ tyre recycling
• Rim size/inches- some differentiation shows in the code, is it enough? • EPU ( Equivalent passenger units )- the Australian system- identifies
24 different tyres• Need to establish what each tyre categories equivalence is in terms of
shredded or crumbed product and in terms of carbon char.
New Zealand Customs
• Already levy some 60-70 product catagories for similar purposes
• Customs require these things:– Legislation– Then they will charge a fee for entry for home consumption– Exports and refunds will have to be undertaken by the
organising authority– Advance warning to set this all up– Simple as possible eg follow import categories– Recoverable cost
Suggested pay-out differential for end-of-life tyresTyre disposal form Proposed %
payout for this destination
% of tyres to this destination potentially in 3 years
Other discussion/consideration
Tyres unchanged in form
Export 0 0 Basel convention
Farms and Fenders-
0 10 Education needed
Landfill 0 0 Illegal where other recovery processes exist?
Dumped on private or crown land
0 0 Should become illegal
Chipped or shredded
Landfill 0 10 Should become illegal where other processes exist
Tyre crumb in roads
? ? Not happening at the moment
Horse rinks 50 2Chips for drainage channels
Contamination of the waterway?
Chips for mat manufacture
50 1
Kiln burning- TDF
90 5-10
Pyrolysis 100 75
Zero Waste New Zealand LtdPO Box 33 1695
Takapuna, Auckland,New Zealand
21st Annual Conference