|
|
 |
| Environment-Gas Scrubbing |
|
Gas scrubbing, involves the removal of hazardous or toxic gases from a gas stream. The pollutant is removed from the gas phase and usually absorbed in a liquid, often water based. The types of compound treated would include Oxides of Nitrogen (NOx), Sulphur dioxide (SOx), Mercaptans, Formaldehyde and Sulphides and reduced sulphur species. Gas absorbed can be reacted in the liquid phase directly or be collected and subsequently reacted or disposed of. A method of absorbing the gas is in a scrubber, where the gas is contacted intimately with a large surface area of the liquid, this can be achieved in a number of ways. In a packed column scrubber the gas is passed up a column with a liquid that is being run down the scrubber over packing, the liquid is recycled through the column. Packing provides a large surface area for contact of the gas with the liquid. Packings can be simple and inexpensive or intricate and costly and made from a variety of materials.
Examples of successful treatments are -NOx removal from Stainless Steel Pickling operations, deodourisation of gaseous effluents from animal carcass rendering, and sulphur dioxide oxidation.
For a more detailed discussion on this application of peroxygen technology please contact us
|
|
|
|
