Is plastic pyrolysis profitable?

As plastic pyrolysis oil is the main end product, its price and production determines the yearly profit of waste plastic to oil machine. Take Chinese market as example, the price of plastic pyrolysis oil is around 440 US dollars a ton. While for different plastic, the oil yield is different.

What happens to plastic during pyrolysis?

Pyrolysis is a common technique used to convert plastic waste into energy, in the form of solid, liquid and gaseous fuels. Pyrolysis is the thermal degradation of plastic waste at different temperatures (300–900°C), in the absence of oxygen, to produced liquid oil (Rehan et al., 2017).

What type of plastic is used in pyrolysis?

Thermal pyrolysis process The commonly used plastics can be classified into six different types of plastics such as Polyethylene terephthalate (PET), High-density polyethylene (HDPE), Polyvinyl chloride (PVC), Low-density polyethylene (LDPE), Polypropylene (PP) and Polystyrene (PS).

Is pyrolysis of plastic sustainable?

Therefore, plastic must be kept under control from damaging the environment. One of the most favorable and effective disposing methods is pyrolysis, which is an environmentally friendly and efficient way. Pyrolysis is the thermal degradation of solid wastes at high temperatures to produce pyrolytic oil.

How long does plastic pyrolysis take?

The pyrolysis process of 1,500 g plastics was completed in 110 minutes to produce 21 g of fuel. This fact shows that the pyrolysis process of plastics can produce fuel at 450oC in the reactor and 75oC outside the reactor.

Which plastic is best for pyrolysis?

Therefore, PS was the best plastic for pyrolysis since it produced the highest amount of liquid oil production among all the plastics. As for the polyolefin plastic type, LDPE produced the highest liquid oil yield (93.1 wt%), followed by HDPE (84.7 wt%) and PP (82.12 wt%) in thermal pyrolysis.

What is the benefit of pyrolysis?

The key benefits of pyrolysis include the following: It is a simple, inexpensive technology for processing a wide variety of feedstocks. It reduces waste going to landfill and greenhouse gas emissions. It reduces the risk of water pollution.

What are the stages of pyrolysis?

Analysis of slow heat-up ReaxFF molecular dynamics (MD) simulations shows that the Liulin coal pyrolysis process can be divided into four stages based on the thermal cleavage of bridge bonds: the activation stage of the coal structure (Stage-I), the primary pyrolysis stage (Stage-IIA), the secondary pyrolysis stage ( …