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What is pyrolysis:
Pyro = heat. Lysis = break down. Pyrolysis is chemical reaction. This reaction involves molecular breakdown of larger molecules into smaller molecules in presence of heat. Pyrolysis is also known as thermal cracking, cracking, thermolysis, depolymerization, etc. Plastic pyrolysis is: the process of converting waste plastics into industrial fuels like Plastic Pyrolysis Oil, Carbon Black and Hydrocarbon Gas. Plastic pyrolysis involves subjecting plastic to high temperature of 400 to 450 degree Celsius, in absence of oxygen. In case of oxygen is present plastic will start burning. During pyrolysis plastic breaks down into smaller molecules of pyrolysis oil, pyrolysis gas and carbon black. Pyrolysis is a great way of recycling large amounts of plastics. This plant can also used for waste tire recycling.
Waste plastic/tyre recycling to fuel oil pyrolysis plant
Specification of waste plastic/tyre recycling to fuel oil pyrolysis plant:
| Item | Contents | |
| Input raw materials | Waste plastic/tyre/rubber | |
| End products | Fuel oil, carbon black, combustible gas | |
| Heating material | Coal, charcoal, wood, fuel gas, fuel oil | |
| Model (Diameter*Length) (mm) | Reactor size | General Capacity |
| HY2200*6000 | 6 Ton/Batch | |
| HY2200*6600 | 8 Ton/Batch | |
| HY2600*6600 | 10 Ton/Batch | |
| HY2800*6600 | 12 Ton/Batch | |
| Reactor material | Q345R/Q245R Boiler plate / Stainless steel | |
| Thickness | 16mm | |
| Weight | 15T-35T | |
| Power | Average 15KW/h | |
| Space needed | 300-400 square meters (Width:10-15m, Length:30m-40m) | |
| Labor needed | 2 workers per shift | |
| Density of oil | 0.89g/cm3 | |
| Combustion value | 44.30KJ/KG | |
End products of waste plastic/tyre recycling to fuel oil pyrolysis plant:
| Items | Application | Sales Market |
| Pyrolysis oil | 1. Add it into heavy oil generator to produce electricity.2. Used as heating material.3. Sell it into oil refining factory to further process it. | Ceramic factory, glass factory, electric power factory, steel making factory, boiler factory…etc. |
| Carbon black | 1. Deep process it into N220, N330 Carbon black.2. Make it into pellet or briquette for burning.3. Further process it into color master batch as basic material to make pipes, cable jacket…etc. | Coal briquette factory, plastic factory, cable factory, etc. |
| Waste gas | Recycled into fire furnace to heat reactor to save fuel material. | |
Oil rate of different plastics:
General Plastics:
PET is not suitable (cannot be recycled).
PVC: Such as some of the films, cables, floor, pipes, windows, etc. These are not suitable (It’s acidic and will corrode the machine).
PE: Such as some films, diaphragms, film membrane, bottles, electrical appliances isolation materials, reticule, water pipes, oil drum, drink bottle, calcium feeding-bottle, milk bottle, some daily necessities, etc. The oil yield is 95%.
PP: Such as some thin films, plastic ropes, plastic crockery, plastic basin and barrel, furniture, woven bag, bottle cap, vehicle bumpers, etc. The oil yield is 90%.
PS: Such as some electrical appliance, stationery, cup, food container, household appliances shells, electric accessories, foam products, toys, etc. The oil yield is 90%.
ABS (Engineering plastics): about 40%
Pure white plastic cloth: about 70%
Bags of instant noodles: about 20%
Paper-mill waste: wet 15-20%, dry 60%
House hold garbage: 30-50%
Pure plastic cable skin: 80%
Pure clean plastic bags: more than 50%
General Rubbers:
Big truck tires: 45%
Small car tire and bike tire: about 35%
Rubber electric cable and shoe sole: about 35%
Mixture shoe sole: about 30%
Sport shoes: 20%-30%
Waste chemical fiber carpet: more than 30%
PMMA: 40%
