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Transcript of Plastic Pyrolysis
Ascend Plastic Waste Hierarchy
Polymers difficult to sort
NIR 67% Recovery Rate
Plastic Waste Hierarchy
9.6 Million Tonnes Landfilled in Europe
UK 69% Landfilled
Source: Foster (2008)
Higher Global Warming Potential
Pyrolysis Wax Plaxx
Best Environmental & Comercial Outlet
Unique Selling Proposition
New York (JBI Ltd.)
Sapporo, Japan (Klean Industries Inc.)
Recycling Technologies Ltd.
2. Solid Fuel
1. Synthetic Crude Oil
3. Slack Wax & Distillate
65°C Melting Point
28.8% Oil Content
12.9 Watson K
Initial base case
Op cost £27/tonne
Avg 20,000 barrels
2322 tonnes Plaxx
Currently ~ 1000 tonnes/yr
Possible with aggregation
Plaxx resembles a crudely or
partially refined crude oil.
Neither a traditional fuel nor a crude oil,
but a hybrid of the two,
whilst being a solid wax compound.
£200 - 300/tonne
must not exceed 0.10 wt.%
as of 1st January 2015
within Emission Control Areas
Plaxx £410.67/tonne as Marine Fuel
Marine Fuel as Base Case
Lubricating oil refining derivative
10 - 25% oil content
(Yorke, et al., 1983)
Differing in densities & oil content
Fuel Gas Equivalent
Plaxx as slack wax and red diesel is environmentally and financially superior.
Plaxx as marine fuel is still a viable contingency.
Stable at £838-910/tonne
1. Wax sweating process
2. Recrystallization process
3. Warm-up deoiling process
4. Spray deoiling process
5. Flash separation
6. Distillation column separation
385°C D86 10 vol.%
58.2 wt.% slack wax
Flowrate 105.47 kg/h
C36H74 largest hydrocarbon
Diversity decreases C26 onwards
Larger molecule less intermolecular interactions
Lack of chemical properties
Source: Shonfield (2008)
Incorrect flash point predictions
Crude Oil Cuts