Fuel Oil from any Mixed Waste Plastic Including PVC

At last! A clever engineer in Hungary has produced equipment to reduce mixed waste polymers through pyrolysis into fuels.  These plants are now commercially produced.  Why is this a breakthrough? Well the plant can take any concentration of PVC up to and including 100%.

They have a process technology for thermal degradation of plastic wastes containing PVC and other plastics with halogen content. In addition, they claim energy production with a totally environment friendly method of processing PVC and other plastic waste materials. The plant can take the non-recyclable PVC and other mixed and contaminated plastic wastes with broad halogen content (0-56%) and produces valuable diesel equivalent fuel, which is relatively easy to store. The technology is an innovative combination of well known industrial processes and  based on efficient design.  The logistics and waste management considerations allows for the long term feasibility of the energy recovery from the high energy content of mixed wastes.  One of the by-products of the technology (fuel) can be used in commercial diesel engines e.g. power generators, DG sets.  The product input of the plant is the waste stream (i.e. mixed PE, PP, PVC, PS, ABS and PET derivatives) which some consider to be non-recyclable and burned in waste incineration plants with expensive filters such as dioxin and HCl absorbers.

Under their two-step method, in the middle-tempered dehalogenisation reactor, hydrogen chloride gas is also eliminated from the added plastic waste. From the residue, in the separated depolymerisation reactor, where the temperature is raised to at least 480°C but kept below 600°C, a hydrocarbon gas mixture is generated. The flow of the hydrocarbon gas-vapour is condensed and separated into oil fractions.

Bi-Products

• Gas (high calorific value) – provides energy to-for the process
• Gasoline – boiling point up to – 130oC
• Diesel oil – boiling range of 120 – 220oC                                                      

hydrocarbons

• Heating oil – boiling range up to – 250oC
• Carbon by product – approximately 90% carbon
• Hydrochloric acid

This technology produces alternative fuels which are CO2 neutral. Due to the modular design (the easily transportable 500 t/year pilot plant) the Middle Tempered Degradation Process – MTDP can be expanded with a 2000 t/year module increments, according to specific increasing waste supply and particular energy needs. A key innovation in this plant is that no hazardous waste is generated.

Additives of the polymer mixture remain in the carbon black residue, except the chlorine, Sb2O3 , DOC and the degradation residues, like terephthalic acid, which are subsequently recycled by returning them to the polymer manufacturers.

For further information:
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Telephone  +36 20 997 3847