DOING® Continuous Waste Plastic Pyrolysis Plant | Plastic to Oil Converter

Products

Continuous Waste Plastic Pyrolysis Plant

Processing Capacity

15/20/30/50TPD, custom

End Products

Plastic Oil, carbon black, steel wire

Core Components

Pyrolysis reactor, condenser, PLC

Certificates

CE, ISO, SGS

DOING fully continuous plastic pyrolysis plant is engineered for high-volume, uninterrupted waste processing. It efficiently converts mixed plastic waste into high-yield pyrolysis oil, carbon black, and syngas with minimal manual intervention. Featuring automated feeding and discharging systems, this plant ensures stable operation, higher daily throughput, and lower labor costs—ideal for large-scale white pollution-plastic waste recycling operations seeking efficiency and consistent output.

Continuous Waste Plastic Pyrolysis Plant Working Process Video

Learn more about plastic waste to oil conversation process by watching this dynamic 3D video of DOING continuous plastic pyrolysis machine. Backed by our rich heritage in innovative pyrolysis solutions, our pyrolysis equipment effortlessly transforms mixed plastics into high-quality fuel oil, gas, and carbon residue through a streamlined, continuous process. Observe the precision-engineered components, our pyrolysis machine can guarantee optimal performance, reduced waste, and enhanced safety—improving plastic recycling with efficiency and sustainability.

Raw Material

The suitable raw materials of DOING continuous waste plastic pyrolysis plant can be polythene, polypropylene(PP), polystyrene(PS), Polyethylene(PE, including HDPE/LDPE), ABS, mixed plastic waste, paper mill scrap residue, used agricultural plastic mulch film, plastic products processing scrap, etc.

For Pure PP, PE, PS, ABS, the oil yield can be over 90%, but for mixed common plastic, the oil yield is usually from 30% to 50%, for paper mill scrap, the oil yield is 30% for wet paper mill, 60% for dry paper mill.

Raw Material of Continuous Waste Plastic Pyrolysis Plant

Working Process

The fully continuous waste plastic pyrolysis equipment is a highly efficient thermal cracking system for waste plastic recycling and resource regeneration. The entire process efficiently converts waste plastics into products such as fuel oil, syn-gas and carbon black, while simultaneously achieving gas purification and energy recovery.

Feeding and Pretreatment

Waste plastics first undergo dehydration and crushing pretreatment to reduce moisture content and size for easier transport. The treated plastic particles are continuously and stably fed into the reactor through a sealed auger feeding system, ensuring the equipment operates in a closed, oxygen-free environment.

Plastic Pyrolysis Reaction

The continuous plastic pyrolysis reactor is heated by an external burner or spray gun. When the internal temperature gradually rises to 160°C-320°C, the plastic pyrolysis and decomposition stages begin, and plastic oil gas is released. The pyrolysis process are carried out at oxygen-free conditions.

Oil Gas Condensation and Plastic Oil Collection

High-temperature oil gas sequentially pass through a multi-stage cooling system. After liquefaction, the plastic pyrolysis oil flows into finished product tanks for storage. This process, through optimized cooling area and flow channel design, ensures that over 90% of the oil and gas is fully condensed.

Gas Purification and Energy Recovery

Uncondensed non-condensable gas is treated by the desulfurization and deodorization system and then returned to the reactor for combustion and heating, achieving energy recycling. The flue gas generated from pyrolysis undergoes desulfurization and denitrification treatment through alkaline absorption towers and flue gas purification towers before being discharged, reducing environmental pollution.

Continuous Slag Discharge

The carbon black slag discharge system (such as a bidirectional spiral slag discharger) continuously discharges carbon black in a closed system, avoiding secondary pollution. The collected carbon black can be reused as an industrial raw material.

Technical data of Continuous Waste Plastic Pyrolysis Plant

Item	Details
Raw Materials	Waste rubber materials, waste tyre/tires, waste plastic, waste oil sludge, biomass materials, etc.
Final Products	Fuel oil, carbon black, steel wire(for tire), combustible gas, etc.
Model	Model	Processing Capacity/Set
	DY-C-15	15 tons/day
	DY-C-20	20 tons/day
	DY-C-30	30 tons/day
	DY-C-50	50 tons/day (Support to customize lager capacity)
Machine Type	Continuous type pyrolysis machine
Reactor Material	Q345R/Q245R/ boiler plate/304/316 stainless steel
Thickness	DOIN(14/16/18/20mm)
Heating Type	Indirect heating
Heating Fuel	LPG, fuel oil, syn-gas, natural gas
Cooling Type	Circulating water cooling
Floor Area	Take a 50-ton machine as an example, 1200 square meters (length: 70 meters, width 17.5 meters)
Required Workers	1-2 workers per shift
Note	Multi-reactor design to ensure efficient pyrolysis effect

Unique Advantages of DOING Continuous Waste Plastic Pyrolysis Plant

DOING continuous plastic pyrolysis machine excels through its sophisticated, high-efficiency design tailored for diverse plastic feedstocks. This advanced system offers seamless continuous processing to achieve high plastic to oil and gas conversion rates, with integrated heat recovery for energy savings and low-emission pyrolysis that prioritizes environmental protection. It provides superior profitability and versatility for plastic waste recycling projects, check its standout features here.

01 Intelligent PLC Control System

Enables fully automated monitoring and operation of the continuous plastic pyrolysis process, allowing real-time adjustment of various parameters to ensure production stability and safety, significantly reducing manual intervention while improving production efficiency.

02 High-Efficiency Pyrolysis and Oil Yield

A precise calculation system combined with multiple cooling systems ensures complete pyrolysis of plastic waste during the reaction, achieving a high oil yield, maximizing resource utilization, and reducing production costs.

03 24-Hour Uninterrupted Operation

With simultaneous feeding and discharging/pouring, greatly improving production efficiency, meeting the needs of large-scale production, and helping companies maintain a competitive edge in the market.

04 Internal Rotating Pyrolysis Reactor

The continuous plastic pyrolysis reactor utilizes an innovative internal rotating device, avoiding the need for periodic shutdowns to replace sealing materials required by traditional equipment, reducing maintenance costs and time, and improving the overall reliability and durability of the equipment.

05 Durable Indirect Heating Technology

Employing advanced indirect heating methods greatly extends the equipment's service life. This technology effectively reduces the wear and failure risks associated with direct heat exchange, ensuring stable operation of the fully continuous pyrolysis machine in high-temperature environments and reducing maintenance frequency.

06 Environmental Protection and Energy Efficiency

The pyrolysis unit is equipped with a water circulation system and an additional pyrolysis gas recovery system, saving fuel and water resources and minimizing your costs. Simultaneously, the exhaust gas generated during equipment operation undergoes treatment systems to ensure compliance with environmental standards.

Final Products And Their Application

Plastic Pyrolysis Oil

Carbon Black

Combustible Gas

Plastic Pyrolysis Oil (Plastic pyrolytic oil/bio-oil)

1.Plastic pyrolysis oil can be sold directly.
2.Reprocessed into diesel by waste oil distillation machine.
3.The calorific value of plastic pyrolytic oil ranges from 40 to 45 MJ/kg, which can be used as industrial boiler/furnaces fuel materials for burning.