ONE OF THREE PROVEN TECHNOLOGIES IN THE WORLD FOR CONVERTING WASTE PLASTIC INTO STANDARDIZED FUEL
After many years of research, Petrel has commercialised the technology for converting plastic waste to heating oil and light distillate, based on the innovative processes of distillation and fractionation. Its uniqueness on a global scale is confirmed by the feasibility of continuous processing – 8,000 h/year, with a return on the investment after 2 to 4 years, and by the unmatched final parameters of PETREL products. Here are the key advantages of the PETREL technological process.
- Patented autonomous reboiler with a distillation column for the decomposition of hydrocarbons with chains longer than C24 without recycling to the reactor.
- Distillation column with a patented set of Bialecki rings, demisters and a reboiler.
- Innovative fractionating column resistant to variable loads and fractional composition.
- Process gas cleaning system – emissions from gas combustion on natural gas level.
- Process control system compliant with Advanced Process Control.
- Continuous process feasibility – 8,000 h/year without interruption.
- Capacity from 7,000 to 15,000 tonnes of plastic waste a year.
Light heating oil – the main product of the technological process, accounts for, on average, 65% (by weight) of the pyrolysis product. PETREL OIL® complies with the PN-C-96024 2011 standard for light heating oil. With the addition of oxidation inhibitors, lubricity additives and detergents it can be a full-value component of diesel fuel. The weight share of light fuel oil in the resultant product varies in the range of 60% to 70% and depends on the feedstock composition. PETREL OIL® has a high calorific value (43-44 MJ/kg), low sulphur content (<0.01%), high flash point (>58o C) and low melting point (< -20o C).
1,000 kg of waste plastic = 750-875 litres of PETREL OIL®
Light distillate has a high calorific value (43-44 MJ/kg), low sulphur content (<0.1%), and low melting point (-30o C).
It is a desired product in the chemical industry where the light distillate is used for the production of solvents or as a component of aviation petrol. The weight share of the light distillate in the resultant product varies in the range of 15% to 22% and depends on the feedstock composition.
1,000 kg of waste plastic = 200-300 litres of PETREL LIGHT®
Solid fraction – with a high calorific value (>23 MJ/kg), evacuated from the reactor every 70-90 hours without interruption to the operation of the reactor. It consists mainly of coal, impurities and additives which are often found in the feedstock. The weight share of the char in the resultant product varies between 5% and 10% and is dependent on the feedstock composition and its contamination level.
The gas generated during the technological process consists mainly of hydrogen, C1-C4 hydrocarbons, as well as carbon and nitrogen oxides. The calorific value of the process gas is 28-35 MJ/m3, which makes it perfectly suitable for heating the reactor. During a suitably controlled process, the emissions from the process gas combustion are lower (due to the lower carbon content and the higher content of hydrogen) than those from the combustion of natural gas. The weight share of the process gas in the resultant product varies between 5% and 10% and is closely linked to the feedstock type.
Petrel technology processes those waste plastic groups which are not suitable for material recycling, including non-selectively collected waste such as soiled film, composite packaging, all types of post-consumer packaging as well as industrial waste, with the exception of PVC and PU.
PETREL TECHNOLOGY DIAGRAM