Plastic Pyrolysis Plant

The industrial continuous production line for waste plastic pyrolysis is capable of processing a wide range of waste plastics, including PP, PE, PS, and both single-type and mixed plastics. During the pyrolysis process, these waste plastics are converted into high-value products such as pyrolysis oil and solid fuel. The pyrolysis oil can then be used as a raw material to produce new plastics through chemical recycling. This not only closes the loop but also maximizes resource recovery.

Technical Parameters

Item	Content
Feeding Raw Materials	All kinds of waste plastics, such as PP/PE/PS, single or mixed plastics
End Products	Pyro oil, solid fuel
Processing Capacity	10000T/Y, 20000T/Y, 30000T/Y… Can be customized according to the processing capacity
Annual Running Time	8000 Hours
Production Form	Continuous operation; Continuous feeding and discharging
Heating Form	Adjustable, constant temperature
Working Pressure	＜100Pa(G)
Pyrolysis Temperature	Constant temperature pyrolysis, adjustable temperature
Automatic Level	Fully automatic intelligent control
Equipment Life	No less than 10 years
Pyrolysis rate	＞99.5%
Environmemtal protection	Comply with the most strict local emission requirements

Technical Process

Niutech’s Intelligent Continuous Waste Plastic Pyrolysis Production Line has been honored with China’s top Environmental Protection Science and Technology award: the State Scientific and Technological Progress Award. This advanced production line is capable of processing both single-type and mixed waste plastics, including PP, PE, and PS. The complete system comprises several key components: an intelligent feeding system, a continuous waste plastic pyrolysis system, an NCG (Non-Condensable Gas) scrubbing system, an oil separating and cooling system, a circulating water cooling system, a flue gas purification system, and an intelligent discharging system. Equipped with the world’s leading fully automated control system, the production line safely, efficiently, and sustainably converts waste plastics into valuable fuels, prioritizing environmental protection and operational excellence.

Pyrolysis Process

End Products	Application
Pyro Oil	→ Raw oil for oil refinery plant → To be burnt as fuel oil directly
Solid Fuel	→ To be used as fuel

Sub System

Feeding ——The raw material is automatically transported to the transitional hopper through the feeding conveyor. This system can also realize on-line weighing, conveying, feeding seal and other functions.
Pyrolysis——In the oxygen-free or oxygen-poor environment, the pyrolysis system function is to complete the pyrolysis reaction of organic waste or hazardous waste and convert the raw material into pyro oil, NCG and solid output under normal pressure, low pyrolysis temperature or catalyst action.
NCG scrubbing——While to remove the acid components in NCG, such as hydrogen sulfide, the pressure is also maintained within a reasonable range through the NCG scrubbing system and further supply energy to downstream.
Circulating water cooling——The main function of this system is to cool the outputs from pyrolysis system and flue gas with water as cooling medium. The cooling water is circulated in the way of in-direct heat exchange, which does not contact any material directly, and there’s no waste water generated.
Oil separating and cooling——This system is designed to cool the gas-phase output from the pyrolysis reactor to a safe temperature and separate it according to different boiling points.
Discharging——The main function of the discharging system is to ensure a sealed discharge, cool, and convey the solid output.
Flue gas purification——The main function of this system is to cool down and purify the flue gas. Through multi-stage purification and comprehensive treatment, the harmful substances in the flue gas can be removed, and the flue gas discharged into the atmosphere can meet the emission standards in various countries and regions.
Electrical control——Electrical control system adapts PLC/DCS control system to automatically control the control points. It also has the functions of date collection, calculation, record, printing record, safety alarming etc.