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    Thermal Desorption Unit (TDU) is an energy recovery system which removes the chemical contaminants from soil ,dill cuttings waste ,oily sludge and other solids waste by heating the material at low temperature and oxygen free condition.

    The alkane and other substances contained in the oily sludge are converted into three phases: gas, liquid and solid.Vapors are cooled in the condenser and discharged to a liquid recovery tank. Solids arel cooled down prior to recycling or backfilling. Avoid secondary pollution to the environment。

    FD Petrol thermal desorption system composed of feeding system,rotating heat exchanger,air emission purification unit,oil water separation unit,automatic control system.Suitable for oilfield sludge ,refinery sludge ,disposed oil based drill waste  and other various mixed domestic garbage sludge. After treatment ,the oil on solids <0.3% which is better than《Control standard of contaminent in agriculture sludge》(GB4284-2018) Grade B 0.3% rated value.Air emmission comply with 《Oil refinery industry contaminent discharge standard》(GB31570-2015).


     
    Model
    FD-TDU-15
    FD-TDU-30
    FD-TDU-100
    FD-TDU-5
    Capacity Per day
    15-20Tons
    30-40Tons
    50-100Tons
    5Tons
    Working Pressure
                                               Normal
    Heating Method
                              Oil/Natural Gas/Recovered Fuel
      Electric(Generator)
    Dimension(mm)
    Φ2800*7700*1
    Φ2800*7700*2
    12000*2200*2550
      Φ1600*4400
    Working Method
                        Batch
    Continous
      Batch
    Performance
                                Oil on solids <0.3%
     Oil on solids <1%

    FD Thermal Desorption Unit (TDU) Working Process

    1.Feeding:screw conveyor or belt conveyor feed the material into heating chamber

    2.Heating:The main part in this system is the processor module. The processor module is integrated with all the necessary equipments to heat up the waste material to the required temperature.
     
    3.Oil water separator:The vapourevaporated  in  the  process  is  discharged  into the first condensation stage, where the oil is liquefied by use of cooled condensate.  The  recovered  oil  will  be  discharged  directly from  this  stage. In the second condensation stage the water also is liquefied by use of cooled condensate. A number of heat exchangers are built into the system, to cool down   condensates   and   recovered   liquids   to   the   required   temperature.

    4.Exhaust gas recycling: In the process of heating pyrolysis sludge, in addition to oil and gas, some combustible but non-condensable gas will also be generated. This gas will be fully burned by the combustion machine at the bottom of the furnace, and fuel can also be saved.

    5.De-dust :The dust and smoke generated during heating will be purified to local standard then discharge.

    6.Solids discharge:After thermal desorption treatment,the oil on material content will be <0.3% which can meet the environment and industry standard,the solids will be discharged through fully-sealed discharged device to ton bags ,avoid dust during whole process.

     


    FD Petrol Drilling Waste Management & Solids Control & Rig Camp