Thermal Desorption Unit

Thermal desorption unit (TDU) is used in contaminated oil sludge and oily soil treatment fields. With the TDU unit, you can get fuel oil from the oil sludge. Beston Group designed it to meet different waste raw materials recycling and treatment demands. If you are in the oil sludge treatment industry, welcome to follow us to get more information about the Beston thermal desorption system.

Installation Site Of Thermal Desorption Unit In China
Installation Site Of Thermal Desorption Unit In China

What Is The Technology of Thermal Desorption Unit?

The core technology of the thermal deportation unit is pyrolysis process technology. The pyrolysis reactor is sealed. Through continuous external heating, the pyrolysis temperature in the internal reactor rises 200-450℃. Under high temperature and anaerobic conditions, the oil sludge can be separated into fuel oil, water, and sand.

Because of the sealed design, there is no gas leakage in the whole thermal desorption process. It improves pyrolysis efficiency and eliminates gas leakage and secondary pollution hidden danger.

Applications Fields Of Thermal Desorption Unit

Thermal desorption equipment is designed for the treatment of oil sludge, drilling cuttings, bottom oil sludge, tank oil sludge, oil soil. The raw materials can be seen in many industries. Here, we would like to share the application fields with you.

Petrochemical Industry

Petrochemical Industry

Iron Smelting Industry

Iron Smelting Industry

Ship Repair Factories And Shipyards


In the petrochemical industry, oil sludge mainly comes from the “three muds”. That refers to the bottom of the grease trap sludge, flotation tank scum and excess activated sludge.
In the iron smelting industry, there is a lot of oil soil that is polluted by the iron and steel smelting oil.
In the process of repairing and manufacturing ships, heavy oil is the necessary usage product. The heavy oil pollutes coastlines, rive margins, coastal sludge, etc. So, it is the main source of oil sludge.

Profits That You Can Get From The Oil Sludge Thermal Desorption

Profits From Fuel Oil

After processed by the Beston thermal desorption plant, you can get fuel oil from the oil sludge. You can sell the fuel oil directly or use it as fuel oil in cement factories, glass factories, power factories, steel factories, energy factories, or other industries. Fuel oil has a good market that can bring a huge economic value.

Profits From Oil Residues

The residues from oil sludge treatment can be landfilled or sold to brick factories to make bricks. Also, it can be sold to oilfield companies as an anti-slump agent for oil wells.

Profits From Subsidies

Because oil sludge has high hazards and serious pollution characteristics, most governments give supporting policies. Some of them would give a certain subsidy on the basis of the oil sludge treatment capacities. Certainly, you should make sure that the oil sludge processing effect can get the relevant qualifications from the government’s environmental impact assessment department.

Make Fuel Oil To Make Benefits
Make Fuel Oil To Make Benefits

Parameters of Thermal Desorption Plant

Working ProcessBatchBatchBatchSemi-continuousFully continuous
Reactor Sizeφ1400*4900mmφ2200*6000mmφ2600*6600mmφ2800*7100mmφ1800*18500mm
Reactor MaterialQ245RQ245RQ245RQ245R310S stainless steel
Drive System350 reducer+4kw drive motor400 reducer+5.5kw drive motor400 reducer+5.5kw 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*8m70m*20m*10m
Burner2*200,000 kcal2*300,000 kcal2*300,000 kcal2*400,000 kcal2.5 million kcal per set
Total Weight of Shipped MaterialsAbout 18tAbout 24.5tAbout 28tAbout 34.5tAbout 150t
Number of Containers1*40HQ1*40FR+1*40HQ+1*20 GP1*40FR+2*40HQ1*40FR+2*40HQ25m*8m bulk cargo+8*40HQ
Noise (dB)≤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
2 sets of vertical condenser
3-in-1 Condenser3000*2200*2250
Condensing area
Condensing area
Condensing area
Condensing area

Features of Beston Thermal Desorption Unit For Sale

BLJ-16 Thermal Desorption Unit In China
BLJ-16 Thermal Desorption Unit In China
Thermal Desorption Unit In Nigeria
Thermal Desorption Unit In Nigeria
Industrial Production

Beston tdu thermal desorption unit has been realized industrialized production. One set machine can process 32 tons of oil sludge or contaminated oil soil per day. It can satisfy most customers’ capacity demands.


The exhaust gas emission of oil sludge pyrolysis plant reaches the EU emission stand. Meanwhile, there is no external discharge of waste water and waste oil residue water.


If there is a problem, the medium-frequency power supply can be cut off instantly. This design is an excellent innovation of an anaerobic thermal desorption unit. It greatly improves the safety performance of the unit in operation. It has good economic and social benefits.

Improve the Quality of Fuel Oil

With a medium-frequency power supply, you can adjust the input power to achieve continuous heating at a stable temperature. With this design, the thermal desorption unit for drill cuttings can greatly improve the quality of fuel oil.

Reduce Production Costs

Center console operation can greatly reduce production costs. Also, it extremely improves the working condition and intensity of labor of the workers.

Long Service Life

In the whole heating process, the pyrolysis reactor has no contact with the open fire. Therefore, it greatly enhances the service life of the thermal desorption plant.

What Is Thermal Desorption Process?


For flowing slurry or paste-like oil sludge with high moisture content, it’s better to use the bucket elevator or excavator to convey. For earthy oily sludge with low water content, you can use the excavator forklift and belt conveyor or screw conveyor to convey. Oil sludge should be loaded to the pyrolysis reactor for processing.

Pyrolysis process:

In the pyrolysis reactor, it is an oxygen-free and sealed condition. With the temperature rising to 200-450℃, oil sludge can be decomposed into oil, water, sand, and other residues. Heavy oil will drop into the heavy oil tank. light oil gas will go into the condenser to be liquefied into fuel oil and then will go to the oil tank.


Hot smoke can be cooled down in the condenser. Then, smoke enters into four steps of the de-dusting process: water washing, water spray, ceramic ring adsorption, and activated carbon adsorption. After that, the smoke is clean that can be released into the atmosphere directly.

Other end product processing:

The wastewater can be sent to a water treatment station for treatment. The combustible gas can be recycled as fuel to heat the reactor. Solid slag is general solid waste that can be transported to the brick factory for brick making.

Thermal Desorption Process
Thermal Desorption Process

BZJ-6 Oil Distillation Plant To Get Purified Refined Oil

If you want to get high economic value non-standard diesel oil, we recommend you order the BZJ-6 oil distillation machine from us. With BZJ-6, you can get approximately high-quality purified oil about 80%-85% of pyrolysis oil. The oil distillation machine can add the valve of fuel oil and make your projects more profitable. So, you can have a look at it and get to know the investment cost of it. If it is within your budget, you can have a try.

BZJ-6 Oil Distillation Plant
BZJ-6 Oil Distillation Plant

In the End

Thermal desorption unit can change hazardous waste materials into useful and valuable substances. At the same time, it can solve the environmental pollution. Thus, if you are finding a way to dispose of oil sludge and heavily contaminated soil and sand, please contact Beston Group to get the newest thermal desorption unit price now! You can see Beston Youtube to get more videos.


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