DETAILED MECHANISM OF DIBENZOFURAN OXIDATION
Résumé
A number of high temperature industrial processes such as municipal waste incineration,
recycling
of scrap to produce steel in electric arc furnaces, sintering of iron ore, etc , lead to the formation
of "dioxins" (PolyChlorinated Dibenzo-p-Dioxins and PolyChlorinated DibenzoFurans, or
"PCDD/Fs") in trace amounts. Their toxicity needs to
keep
their formation as low as possible by
using all the
available techniques (process
modification, post-treatment,...). To limit the
emissions of dioxins (PCDD/Fs), there are three possibilities which in fact are complementary :
- to limit their
formation by choosing
"clean" raw
materials, by modifying the industrial
process, the conditions of the reaction,
-
to destroy the dioxins after their formation,
-
to trap the dioxins in the flue gas by an adsorption process.
An efficient way of lowering the emissions of PCDD/Fs is an optimisation of the postcombustion
process to keep the level of organics emitted as low as possible.
Domaines
Génie chimiqueOrigine | Fichiers produits par l'(les) auteur(s) |
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