The process
Solvent-laden air from coating, printing or pharma drying is passed through activated carbon beds that adsorb the solvent; the beds are regenerated with steam or hot inert gas and the solvent recovered. The process fan is spark resistant with a flameproof motor.
The gas
Air carrying solvent vapour from painting, printing or coating. Spark resistant construction, flameproof or increased safety motor, and the fan placed where the duct cannot accumulate vapour.
Selection for this process
| Carbon | Granular activated carbon bed sized for the solvent load and the required outlet |
| Fan | Spark resistant, on the clean side of the bed |
Types, construction and performance of the adsorption tower.
Industries
Fans in solvent recovery plants
Adsorption Tower in other processes
Iron and Non-ferrous FoundriesWaste IncineratorsChemical Reactor and Tank VentsAutomotive Paint ShopsRubber and Plastics Compounding
Information needed to select or quote
- Gas volume and temperature. Actual flow at the inlet, normal and upset temperature, moisture.
- Dust or pollutant. Inlet loading, particle size distribution, whether it is abrasive, sticky, hygroscopic or combustible; for gases, the species and concentration.
- Required outlet. The emission limit or clean gas concentration the unit must meet.
- Site. Available space and height, material of construction preferences, and how the collected material is to be discharged.