The Ethanol Dryer utilizes low watt density heaters inserted in non-removable stainless steel thermowells spaced throughout the desiccant bed. This design distributes the reactivation heat uniformly over the entire cross sectional area, obtaining complete and thorough reactivation of the desiccant.
|Flow Rate||2.5 GPM|
|Dryer Cycle||28 Hours|
(Variable Depending on Inlet Conditions)
|Inlet Pressure||5-10 Psig|
|Inlet Water||200 PPM(W)|
|Electrical Power - Connected||8.78 kW|
|Electrical Power - Average Usage||2.4 KWh|
Note: In some cases the purge may need to be increased during the cooling phase only.
|Purge Gas||Dry Nitrogen|
SF6 Gas Re-Circulation and Contitioning SystemDescription
The blower pulls gas from the process and directs it to the heat exchanger where it is cooled. The cool gas is then directed to Molecular Sieve Internal Heat Reactivated adsorber and finally through a filter and back to the process.
The heat exchanger use cooling water to reduce the elevated gas temperature from the process to about 70°F prior to entering the adsorber. The adsorber is used to remove any trace amounts of moisture to pressure dew point of less than minus 70°F
|Design Pressure:||150 PSIG/Full Vacuum|
|Design Temperature:||200° F|
|Operating Pressure:||70-80 PSIG|
|Operating Temperature:||86° F|
|Dryer Reactivation Purge Gas:||Nitrogen|
|Dryer Purge Flow Rate:||5 SCFM|
|Adsorber Connected Load:||4.1 kW|
Wet liquid enters the equipment and is dried as it flows through the desiccant bed and discharges the equipment. Adsorbents can be Molecular Sieves or Ion Exchange Resins. The dryer is a closed loop design and can be modified to meet a variety of applications. The unit shown here is drying a number of different solvents ranging from IPA, Ethanol, Acetone and Thinners.
Regeneration is accomplished as follows:
|Design Flow Rate:||25 to 35 GPM|
|Inlet Water Concentrations:||Range 3% to 16% depending on the application and effluent requirements|