- → Odour
- → Ethylene oxide and other epoxides
- → Hydrogen sulphide and volatile organic sulphur compounds
- → Ammonia and amines
- → Acrylates, acetates and aldehydes
- → Organic and inorganic acids
- → Halogenated compounds
- → Alcohols and ketones
- → Aromatic compounds
- → Hydrocarbons (alkanes, alkenes, …)
- → Phenol
- → Other volatile compounds
- → Dust and particles
The presence of hydrocarbons in waste gases may require a suitable abatement technique to meet the local emission limits.
For small gas flows, hydrocarbons can be removed with an activated carbon-based dry scrubber.
For both small and voluminous airflows loaded with methane, pentane, decane, ethene, … a biofilter can also be applied successfully, provided that the bioreactor has a very high gas residence time and the suitable nutrients are dosed corresponding to the pollutant load.
Wet scrubbing techniques for hydrocarbons are difficult due to the very high Henry constant (gas/water equilibrium) of these compounds unless partial ozone-based oxidation of, say, alkenes can be applied as a first step before the scrubber technique. Trevi has limited experience with the application of a solvent scrubber for the removal of aliphatic hydrocarbons. Our Trevi R&D division currently is focusing on this topic for further development.
Contact us with any questions or for more information.
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