Beston Group’s thermal desorption unit provides an effective solution for managing your petrochemical waste. The thermal desorption system is not only clean, safe, and reliable but also exceptionally efficient. With Beston thermal desorption technology, you can maximize the recovery of usable fuel oil from oil sludge while greatly diminishing reliance on hazardous waste landfill disposal. Welcome to consult!
What Is Thermal Desorption?
Thermal desorption is an environmental remediation technology for hazardous waste treatment. It utilizes heat to increase the volatility of contaminants to remove them from the solid matrix (like soil, sludge, or filter cake). All thermal desorption technologies consist of two steps:
- Step 1: Heat the contaminated material to volatilize the organic contaminants.
- Step 2: Treat the exhaust gas stream to prevent emissions of the volatilized contaminants to the atmosphere.
Therefore, a thermal desorption equipment usually has two major components: the desorber itself and the off-gas treatment system.
Note: Not all thermal desorption units (TDU) can handle every type of contaminated material. Factors like temperature range, capacity, and the specific contaminants present influence their suitability. Therefore, consulting the manufacturer or a qualified environmental engineer is crucial to ensure a TDU can effectively process a specific type of raw material.
Beston Group TDU Solution: Specialized in Oil Sludge Treatment
Approximately 100 million tons of oil sludge are generated annually. They contain harmful substances like heavy metals, pathogens, and benzene, posing environmental and health risks. Beston Group’s thermal desorption unit (TDU), also known as a pyrolysis plant, is specifically engineered for oil sludge treatment and recycling. Whether you’re an oilfield operator, refinery manager, or environmental remediation contractor, the TDU solution addresses your oil sludge waste challenges.
New-generation BLL-30 Model: Annually Handle 12000 Tons Oil Sludge
30 Day
continuous operation
55%
energy-savings
50%
lower emissions
±10 ℃
temperature control accuracy
01 Oil-Gas Anti-Polymerization Condensation Technology
- rapidly cools pyrolysis oil-gas
- prevent pipelines and machine clogging.
- reduce downtime and extend non-stop operation time
02 Hot Flue Gas Recycling + Air Preheating Technology
- recycle 80% of hot flue gas to mix with hot air to heat the reactor.
- recycle the remaining 20% hot flue gas to heat fresh combustion air.
03 Reactor Automatic Temperature Control Technology
- automatically adjust the fuel ratio in real-time for precise temperature control.
- reduce labor amount to just 2 people and cut 80% labor cost
Industry Pain Points Breakthrough: 200% Efficiency ⬆️
Traditional oil sludge treatment often suffers from severe coking, low thermal efficiency, and poor automation. Beston TDU thermal desorption unit solution is different. The innovative “hot water washing + pyrolysis” integrated process boosts processing efficiency by 200%. The BLJ-16 model achieves a remarkable capacity of 6,000 tons per year—a milestone that sets new standards in the market.
Industry Pain Points: Low production efficiency
- Coking Problems: During oil sludge treatment, some sludge forms hard cokes on the inner walls or pipelines of the equipment. This severely affects operational efficiency and equipment lifespan.
- Low Thermal Efficiency: Coking clogs the equipment, leading to heat loss and reduced energy efficiency, which in turn lowers overall productivity.
Solution: Thermal-Wash + Pyrolysis Combination
- Thermal-Wash Pre-Treatment: It efficiently removes impurities and moisture in oil sludge at the initial stage, ensuring a cleaner and more stable feed.
- Intelligent Pyrolysis Technology: With over 95% thermal efficiency, our oil sludge pyrolysis plant features precise temperature control to prevent coking.
Specifications of 4 Models of Thermal Desorption Unit for Sale
Model | BLL-30 | BLJ-20 | BLJ-16 TDU | BLJ-16 Standard | BLJ-16 ULTRA |
---|---|---|---|---|---|
Manufacturer | BESTON | BESTON | BESTON | BESTON | BESTON |
Time to Market | 2025 | 2025 | 2013 | 2013 | 2022 |
Motor Brand | Chinese brand | Chinese brand | Chinese brand | Chinese brand | ABB Explosion-proof |
Suitable Raw Materials | Waste plastics; Tires; Oil sludge | Waste plastics; Tires; Oil sludge | Oil sludge; Landing oil sludge; Drilling waste; Tank bottom oil sludge | Whole tire<120cm; Tire blocks<15cm; Oil soil with liquid content<30% | Waste plastics; Tires; Oil sludge |
Input Capacity (Max.) | Waste plastic pellets: 0.8-1.05t/h Rubber powder: 1.25-1.5t/h Oil sludge:1.8-2.3t/h | Waste plastic pellets: 12-13t/d Tire: 18-20t/d Oil sludge: 20-25t/d | 16-18t/batch | Whole tire <120cm or Tire blocks<15cm: 10-12t/batch Sidewall removed tire: 15-16t/batch Oil soil: 16-18t/batch | Waste plastic bales: 8-10t/batch Whole tire <120cm or Tire blocks<15cm: 10-12t/batch Sidewall removed tire: 15-16t/batch Oil sludge: 16-18t/batch |
Working Method | Fully Continuous | Batch | Batch | Batch | Batch |
Final Oil Quality | Pyrolysis oil Pyrolysis oil with wax or naphtha | Pyrolysis oil, Non-standard diesel and naphtha | Pyrolysis oil | Pyrolysis oil | Pyrolysis oil Pyrolysis oil with wax or naphtha |
Reactor Material | 304/310S Stainless steel | Q345R Boiler steel and 304/316L/310S Stainless steel | 304 Stainless steel | Q345R Boiler steel | 304 Stainless steel |
Reactor Life Span (Years) | 5-8 | Q345R Boiler steel 2-3 304/316L Stainless steel 5-8 310S Stainless steel 8-10 | 5-8 | 2-3 | 5-8 |
Guarantee (Months) | 12 | 12 | 12 | 12 | 12 |
Delivery Time (Calendar Days) | 60-90 | 60 | 60 | 45 | 90 |
Land Space Required (L*W*H*m) | 70*20*10 | 40*13*8 | 33*13*8 | 33*13*8 | 33*26*8 |
Packing | 20*6*3m in bulk+13*40HQ | 1*40FR+4*40HQ | 1*40FR+8*40HQ | 1*40FR+3*40HQ | 1*40FR+8*40HQ |
Installation Period (Calendar Days) | 60-90 | 45 | 45 | 45 | 60 |
Case Study: Oil Sludge Thermal Desorption System in Africa
Customer Background
- Local oil sludge needs to meet African Union standards before discharge.
- Large volumes and high handling costs (transportation, storage, and treatment) drive the client to build their oil treatment center.
Solution
- 20 T/D capacity thermal desorption unit to ensure efficient oily sludge treatment.
- Customize dedusting system to meet local emission standards to obtain environmental impact assessment (EIA).
Ultimate benefit
- Increase pollutant treatment capacity, reduce processing costs.
- Use oil sludge residue to make bricks for-profit sales.
- Centralized oil sludge treatment will reduce security costs.
Oil Sludge Sources
Oil sludge refers to the significant amount of waste generated during exploration, extraction, and transportation processes, typically categorized into oily sludge from oilfields and oily sludge generated by the petrochemical industry, primarily from refineries.
Image | Source | Type | Water Content % | Oil Content % | Solid Content % |
---|---|---|---|---|---|
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Drilling and Oil Extraction | Oil-based Cuttings | 8~15 | 15~25 | 60~80 |
Waste Oil-based Mud | 40~50 | 10~20 | 30~40 | ||
Oil-contaminated Soil | 5~25 | 5~10 | 70~90 | ||
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Oil Gathering & Transportation | Tank Bottom Oil Sludge | 40-70 | 20-40 | 5-40 |
Oil-contaminated Soil | 5~25 | 5~10 | 70~90 | ||
![]() |
Oil Refining | Oil-water Separator Sludge | 60~70 | 10~15 | 25~35 |
Air Flotation Tank Sludge | 75~90 | 5~10 | 3~10 | ||
Activated Oil Sludge | 75~85 | <5 | 10~20 |
Oil Sludge Thermal Desorption Process
Thermal desorption equipment from different manufacturers may be designed to handle different materials, so the specific working process may have differences. Take Beston Group‘s TDU unit as an example, the general working process is as follows:
01 Feeding
Convey oil sludge to the reactor in specific ways:
Oil Sludge | Feeding Way |
---|---|
< liquid content 40% | belt conveyor |
40%-60% liquid content | shaftless spiral |
>75% liquid content | oil sludge pump |
02 Thermal desorption
03 Final Product Collection
- Oil Gas Condensation: The oil gas enters into the condenser, liquified into pyrolysis oil.
- Syngas Recycling: The non-condensable syn-gas enters the combuster after being water-sealed and desulphurized. It provide heat energy for thermal desorption reaction.
- Solid Discharging: The screw discharging system is used to transport solid residues (Sand) out, cooled down by the water-cooling heat exchange way.
04 Exhaust Gas Treatment
Advanced Designs of Beston Thermal Desorption Unit
Full life Cycle Design
Beston Group has matched oil distillation and purification technology, decolorization and deodorization technology, etc. This can improve the value of end products and overall profitability.
Low Energy Design
The machine includes a syngas recycling system. Syngas produced in the thermal desorption process is recycled to heat the reactor, reducing energy costs.
Eco-friendly Design
The dedusting system comprises three to four layers of dust removal treatment. The exhaust gas is treated by this system to meet the emission standards. It can even meet EU standards.
Safe Design
Multiple designs like temperature gauges, pressure indicators, and explosion-proof valves ensure the safety of the machine and operators.
Intelligent Design
IoT monitoring technology and PLC and DCS remote control technology can achieve intelligent and automated operation.
Durable Design
Beston Group adopts corrosion-resistant and high-temperature-resistant materials to design the reactor of the thermal desorption system. The common choice is Q345R.
Why Are Thermal Desorption Projects So Popular?
Now you find that investing in thermal desorption projects is popular and some investors have started their actions. This is because managing industrial hazardous waste, such as oil sludge, makes sense. It can minimize their impact on the environment and human health. It’s a win-win situation for both investors and the planet!

Environmental Benefit
- Remediation of contaminated sites: Thermal desorption unit can effectively treat contaminated soil, sediment, or sludge, restoring the environmental integrity of affected sites.
- Minimized environmental footprint: Compared to traditional disposal methods like incineration, thermal desorption typically has a lower environmental impact, as it produces fewer emissions and residues.
Economic Benefit
- Revenue generation: Through the recovery and reuse of valuable materials, thermal desorption projects can generate revenue streams from the sale of recovered resources, such as pyrolysis fuel oil.
- Job creation: Thermal desorption facilities generate employment opportunities across construction, operation, maintenance, and environmental monitoring.

Is Thermal Desorption Unit Price Affordable?
Now you may start to get interested in the thermal desorption project and wonder if it’s affordable. The equipment price varies depending on size and application, ranging from several thousand to million dollars. To get accurate pricing, you need to contact manufacturers or suppliers directly. Welcome contact us for the latest quotation!
Start Oil Sludge Recycling Business Now
Partner with Beston Group to bring your oil sludge thermal desorption unit (TDU) project to life. With Beston Group’s expertise and full-service support, you’ll be one step closer to sustainable, profitable waste management. Contact us now for customized solutions and expert guidance. Follow us on Linkedin/Facebook/YouTube/Pinterest for the latest updates.