Titre : |
Keeping the work atmosphere clean of volatile organic compounds : Regenerative thermal oxidizers can be the most effective and cost-efficient way to destroy VOCs in the adhesives and sealants industry |
Type de document : |
texte imprimé |
Auteurs : |
Stephen H. Klostermeyer, Auteur |
Année de publication : |
2019 |
Article en page(s) : |
p. 32-34 |
Langues : |
Américain (ame) |
Catégories : |
Composés organiques volatils -- Oxydation Oxydants Oxydation thermique Polluants -- Détérioration Polluants atmosphériques Polluants organiques Revêtements SiliconesLes silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki).
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Index. décimale : |
668.3 Adhésifs et produits semblables |
Résumé : |
The manufacture and application of solvent-based adhesives and coatings release significant emissions of volatile organic compounds (VOCs) into the environment. When evaporated, these VOCs react with nitrogen oxide (NOx) in the presence of sunlight to form ground level ozone; as such, they are regulated as an ozone precursor under the U.S. Environmental Protection Agency’s (EPA) criteria pollution program. In sufficient quantities, VOCs can cause adverse effects on human health, including eye, nose and throat irritations; headaches; dizziness; visual disorders; and memory impairment.
VOCs and hazardous air pollutants (HAPs) are regulated by federal, state and local regulatory agencies through guidelines established by the Clean Air Act. The EPA has developed National Emission Standards for Hazardous Air Pollutants (NESHAP) for paint manufacturing facilities and numerous coating application industries. In general, these regulations limit the amount of VOC emissions (usually quantified in tons allowed) that can be emitted. Emissions limits differ across industries and locations.
While great strides have been made by industry to reduce air pollution, including the development of water- and powder-based materials, many solvent-based coatings are necessary to improve product performance and extend product life. VOCs are typically found in the following areas in coatings manufacturing or in surface coating operations:
- Coatings application stations or booths
- Flash-off areas (low air movement)
- Curing or bake oven exhaust (a large majority of emissions are found in this step)
- Paint storage areas
- Paint mix areas
- Storage tanks |
Note de contenu : |
- Controlling emissions
- Silicone coatings |
En ligne : |
https://www.adhesivesmag.com/articles/96877-keeping-the-work-atmosphere-clean-of [...] |
Format de la ressource électronique : |
Html |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32460 |
in ADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 26, N° 4 (04/2019) . - p. 32-34