Removal of target odorous molecules on to activated carbon cloths.
Activated carbon materials are adsorbents whose physico-chemical properties are interesting for the treatment of odorous compounds like hydrogen sulfide. Indeed, their structural parameters (pore structure) and surface chemistry (presence of heteroatoms such as oxygen, hydrogen, nitrogen, sulfur, phosphorus) play an important role in H2S removal. The cloth texture of these adsorbents (activated carbon cloths) is particularly adapted for dealing with high flows, often found in the treatment of odor emissions. Thus, this paper first presents the influence of these parameters through adsorption isothermal curves performed on several materials. Secondly, tests in a dynamic system are described. They highlight the low critical thickness of the fabric compared to granular activated carbon.
Ecole des Mines de Nantes, GEPEA--UMR CNRS 6144, 4 rue Alfred Kastler, La Chantrerie, BP 20722, 44307 Nantes Cedex 3, France. Louis-Marie.Le-Leuch@emn.fr
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D000327:Adsorption; D000393:Air Pollutants / Q000302:isolation & purification*; D002244:Carbon / Q000737:chemistry*; D006862:Hydrogen Sulfide / Q000302:isolation & purification*; D009812:Odorants / Q000517:prevention & control*; D010084:Oxidation-Reduction; D013696:Temperature; D014865:Waste Disposal, Fluid
D000393:Air Pollutants; D002244:Carbon; D006862:Hydrogen Sulfide