Pure PVC is a rigid material that owes its aversatility to the possibility of being mixed even in high proportions with inorganic compounds and plasticizing products, such as phthalic acid esters, which make it flexible and highly malleable.
It is considered stable and safe in technological applications at room temperature, but extremely dangerous if burned or heated at high temperatures and in systems unsuitable for its treatment, due to the presence of chlorine in the molecule, which can be released as hydrochloric acid. In the same conditions, the release of dioxin or monomer vinyl chloride may also occur. PVC a recyclable plastic is only partially recovered due to high treatment costs. PVC is very sensitive to light and heat; these have a degrading effect on it which manifests itself first with yellowing and with decomposition from which hydrochloric acid is released. For this reason it is stabilized. The pyrolysis of plastics, including PVC, has the same impact as pyrolysis than any other type of waste. It has the advantage of exploiting their caloric power to produce thermal or electrical energy by reducing the consumption of resources (oil).
WHAT IS OBTAINED FROM THE TREATMENT OF plastic THROUGH THE PYROLYSIS PLANT?
Assuming that the plant for 1.000 kg/h, we will have:
Result (product fed: plastic)
- Synthetic oil (300kg) 30% 30%
- Syngas (350kg) 35% 35%
- Coal (350kg) 35% 35%
Size of the Plant
The pyrolysis plant that we will analyze treats 1.000 Kg/hour of plastic.
electrical energy production
From the 1,000Kg / hour PVC process, electricity is obtained through motors connected to alternators. The total hourly production is 1,000 KW of electricity per 8,000 hours a year, producing around 8,000 MW.
Thermal Energy production
From the working cycle results a production of Thermal Energy . This is partly recovered for the thermal treatment of the incoming product, for the cooling of the syngas with a heat exchanger, and for heating and cooling purposes. For each KWe 1.3 KCal / hour is obtained; from 1,000 KWe we have 1,300 KWt for 8,000 hours a year we will have a production of 10,400 MWt.
Yearly input (ton)
ELECTRICal energy PRODUCTION
Yearly production (MWe)
THERMAL ENERGY PRODUCTION
Yearly production (MWt)
Yearly production (ton)
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