Facing the increasingly severe problem of recycling industrial oily hazardous waste, thermal desorption unit(TDU) provides a sustainable solution. By utilizing a controlled heating process, TDU effectively breaks down oil sludge. Thereby, the machine enables the recovery of valuable resources such as fuel oil and syngas. In general, thermal desorption unit not only meets the urgent need for effective waste management but also contributes to the sustainable development of the crude oil industry.

Superiority of Thermal Desorption Technology

Thermal desorption is an environmental pollution control technology. It works by heating oily hazardous waste, also known as oil sludge, to volatilize organic matter from the solid matrix. Since it also involves high-temperature pyrolysis of oil sludge in a microaerobic environment, this technology is also called oil sludge pyrolysis. The multiple superiorities of this technology make it widely used in oily sludge recycling.

Extensive Recycling Range

Thermal desorption technology has strong applicability. This technology has no special requirements for the water content, oil content, and solid content of oily waste. Therefore, it can handle waste generated from various stages of crude oil extraction, processing, and refining wastewater treatment.


Comprehensive Resource Utilization

This technology can utilize the resources of the end product. The oil, syngas, and solid residues produced through thermal desorption processes have a wide range of applications. They are effectively used in energy production, chemical industry, and other fields to achieve sustainable use of resources.


Efficient Harmless Treatment

This technology completely decomposes organic matter in oil sludge. Therefore, it can reduce the accumulation of waste on a large scale. Additionally, it converts waste into harmless products. This harmless treatment method can effectively reduce the risks caused by waste to the environment and human health.


Significant Environmental Benefit

Due to precise parameter control, thermal desorption can maximize the utilization of energy. In addition, unlike traditional treatment methods, this technology does not require the addition of additional chemicals. Therefore, this reduces secondary contamination from the chemical treatment process.

Beston Thermal Desorption Unit

Types of Oil Sludge Treated by TDU Unit

Oily sludge is generated at various stages of crude oil production and processing. Most are simply landfilled, stockpiled, or incinerated. The composition of these oily waste produced at each stage is different. Below are some common waste that can be processed by thermal desorption system:

Application Scenarios of TDU Unit’s End Product

Thermal desorption unit realizes the resource conversion of oil sludge. Its main products include fuel oil, syngas and solid residues. These resources are widely used in various industries. Here are some main application scenarios:

Thermal Desorption Products Used in Industrial Production

Industrial Production

  • Fuel oil directly provides alternative energy for industries that consume large amounts of energy.
  • Fuel oil is distilled to obtain non-standard diesel for use in more industrial fields.

Thermal Desorption Products Used in Construction Material Production

Construction Material Production

  • Use solid residue as raw materials for building materials such as permeable bricks;
  • Use solid residue as an anti-collapse agent for oil wells.

Thermal Desorption Products Used in Energy Reuse

Energy Reuse

  • The recovered syngas provides a reliable heat source for the entire reaction system;
  • Refineries further process fuel oil to produce higher quality commercial gasoline or diesel.

Features of Different Types of Thermal Desorption Units for sale

After years of exploration in the oily waste recycling industry, Beston Group has developed four types of thermal desorption units according to different customer needs. They each have distinctive features tailored to various production conditions. The following are the specific features and parameters of these equipment for your reference:

Beston Skid-mouted Thermal Desorption Unit

Skid-Mounted Unit

Model: BLJ-3
  • Modular structure, low transportation cost
  • Short installation cycle
  • Simple to operate and maintain
Beston Batch Thermal Desorption Unit

Batch Unit

Model: BLJ-6/10/16
  • One furnace a day
  • Flexible configuration options
  • Suitable for medium-scale production
Beston Fully Continuous Thermal Desorption Unit

Fully Continuous Unit

Model: BLL-30
  • Continuous production 24 hours a day
  • PLC control, reduce labor cost
  • High-end exhaust gas treatment
Capacity1-3t/d4-6t/d8-10t/d12-16t/d8t/d (only for rubber powder)30-35t/d
Working ProcessBatchBatchBatchBatchSemi-continuousFully continuous
Reactor Sizeφ1400*4900mmφ2200*6000mmφ2600*6600mmφ2800*7100mmφ2800*7100mmφ1800*18500mm
Reactor MaterialQ345RQ345RQ345RQ345RQ345R310S stainless steel
Drive System350 reducer+4kw drive motor400 reducer+5.5kw drive motor400 reducer+5.5kw drive motor500 reducer+7.5kw drive motor500 reducer+7.5kw drive motorZQH650-50 reducer+15kw frequency conversion motor
Land (L*W*H)18m*4.2m*6m30m*12m*8m30m*13m*8m33m*13m*8m33m*13m*8m70m*20m*10m
Burner2*200,000 kcal2*300,000 kcal2*300,000 kcal2*400,000 kcal2*400,000 kcal2.5 million kcal per set
Total Weight of Shipped MaterialsAbout 18tAbout 24.5tAbout 28tAbout 34.5tAbout 34.5tAbout 150t
Number of Containers1*40HQ1*40FR+1*40HQ+1*20 GP1*40FR+2*40HQ1*40FR+2*40HQ1*40FR+2*40HQ25m*8m bulk cargo+8*40HQ
Noise (dB)≤60≤60≤60≤60≤60≤60
Heating MaterialsFuel oil (including tyre/plastic pyrolysis oil), natural gas, LPG, diesel, etc.
Condensing SystemVertical Condenserφ426*3000
Single piece condensing area
Single piece condensing area
Single piece condensing area
Single piece condensing area
Single piece condensing area
2 sets of vertical condenser
3-in-1 Condenser3000*2200*2250
Condensing area
Condensing area
Condensing area
Condensing area
Condensing area

How Does Thermal Desorption Unit Work?


Raw Material Conveying

  • Liquid content below 40%: belt conveyor;
  • Liquid content 40%-60%: shaftless spiral;
  • Liquid content rate above 75%: sludge pump;

Thermal Desorption

The entire reaction environment is microaerobic and high temperature. The reaction temperature reaches 200-450 degrees Celsius in the pyrolysis machinery. During the thermal desorption process, the organic matter in the oil sludge begins to thermally decompose. Eventually, high-temperature oil gas and solid residues are formed.


Oil Gas Condensing

  • Oil gas first passes through the manifold to separate the heavy oil gas.
  • The remaining oil gas then enters the condenser.
  • The condensable oil gas condenses into oil through heat exchange and then falls into the oil storage tank.
  • The non-condensable syngas is purified by a water seal and provides a heat source for the thermal desorption process.

Solid Discharging

In cooperation with the reactor, the screw extractor discharges the solid residue. In addition, the waste-cooled screw extractor can quickly cool the temperature of solid residues for easy collection.


Emission Gas Treatment

The remaining waste gas from the reaction passes through the cooling tower and dust removal tower for cooling and dust removal. After reaching the emission standards, the exhaust gas is discharged through the chimney. If your project location implements high emission standards, we provide high-end exhaust gas treatment systems. The waste gas treated by this system can meet EU standards.

Cutting-edge Technology Carried by Thermal Desorption Unit

Beston thermal desorption equipment is embedded with cutting-edge technology. This makes the machine quite competitive in the recycling industry. In addition, the strong R&D capabilities of our technical team enable the machine to meet more diversified needs of customers.

Safety Guarantee

  • The main furnace reducer is equipped with a protective cover. The control system is equipped with a security alarm system;
  • Before and after the reaction, the nitrogen system (optional) can replace the air/syngas in the furnace to prevent the flash explosion.

Eco-friendly Emissions

  • Combustion exhaust gas is treated by environmental protection facilities to meet emission standards;
  • The slag discharging system is designed with water-cooled slag discharging method to reduce dust pollution.

Efficient Reaction

  • Make full use of the syngas generated by the reactor for secondary combustion to reduce energy consumption;
  • Coke residue hinders the thermal desorption reaction. The equipment applies anti-coking technology to improve production efficiency.

Intelligent Operation

  • PLC control system and DCS (Distributed Control System) are optional. They improve control efficiency and save manpower;
  • IoT control system is optional. This enables real-time online monitoring of machine operations on the mobile terminal.

Factors Affecting Thermal Desorption Plant Cost

There are many factors that influence the cost of a machine. They may involve configuration planning and machine manufacturing. If customers want a more reasonable TDU cost, a suitable solution is essential. Therefore, if you are interested in investing, please contact Beston Group. Our project consultants will comprehensively discuss the feasibility of the project with you.


Machine Capacity

Larger equipment typically requires more raw materials and components than smaller equipment. Therefore, the larger the machine capacity, the cost of required production consumables and parts will also increase accordingly.

Operating Mode

The continuous operation mode is more advanced than the skid-mounted and intermittent modes, but it also means higher investment costs. Continuous operation requires more complex automation equipment and control systems, which increase thermal desorption unit price.

Main Furnace Material

Main furnaces made of different materials have different corrosion resistance and service life. Generally speaking, higher-quality materials (such as 310S stainless steel) are more resistant to corrosion but are also more expensive.

Component Options

The selection of components such as feed systems, high-end off-gas treatment, and distillation equipment will affect the performance and functionality of the equipment. More and more complex component options will increase the cost of the equipment.


Beston Group: Reliable Thermal Desorption Unit Manufacturer

Comprehensive services are the key to why Beston Group is trusted by recyclers around the world. At different stages of the project, our various departments have a clear division of labor. This ensures that the project proceeds appropriately. In addition, our exclusive services cover the entire project operation process. From establishing contact to launching production, you have Beston’s support.

Pre-sale of Beston TDU Unit


  • Project consulting team provides technical consultation after communication with customers;
  • Technical team provides professional technical solutions and process flows.

On-sale of Beston TDU Unit


  • We provide layout design. This helps customers plan land construction;
  • Product delivery team provides real-time reporting on equipment production and delivery status.

After-sale of Beston TDU Unit


  • Installation engineers go to the production site to provide guidance and train the operations team;
  • Along with product technology updates, we provide software upgrade services to customers.

Successful Cases of Thermal Desorption Equipment Across Worldwide

Beston Group’s thermal desorption units are located around the world. From solution provision to machine manufacturing, Beston Group plays a key role in addressing oily waste challenges around the world.  Not only oil sludge,  we also provide recycling solutions for waste resources such as plastic, tyres, and biomass. Below are some successful cases for your reference.

Video of 4 Sets of Thermal Desorption Units in China

Work with Beston Group

When you work with Beston Group, you get a reliable manufacturer of thermal desorption unit. We not only provide a full range of products and services, but are also committed to promoting the development of environmental protection with our partners. No matter what type of solid waste recycling solution you are looking for, Beston Group is your ideal partner. Contact us today to start a new chapter in sustainable development! If you want to browse more project information instantly, please follow us on Facebook

Contact Us

The following items will help you identify key information about your project, which will enable us to work on a competitive solution proposal.

Please specify your requirement by referring to the following aspects:

1- What kind of solution will meet your demand? (Key point)
2- What kind of material and expected end product are you planning to have?
3- When is the project supposed to be running? (Key info for A-Z project programming)
4- Budget for machinery purchasing? (Key info for right model)
5- Points that you really focus on. (Customized service from our project consultant)