| Autor: |
Wehrmeier, Andreas, Lenoir, Dieter, Schramm, K.-W., Kettrup, A., Taylor, Philip H., Sidhu, Sukh S. |
| Předmět: |
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| Zdroj: |
Chemosphere. Jun2000, Vol. 40 Issue 12, p1297. 0p. |
| Abstrakt: |
The chlorination and condensation of acetylene at low temperatures is demonstrated using copper chlorides as chlorinated agents coated tomodel borosilicate surfaces. Experiments with and without both a chlorine source and borosilicate surfaces indicate the absence of gas-phase and gas-surface reactions. Chlorination and condensation occur only in the presence of the copper catalyst. C2 through C8 organic products were observed in the effluent; PCDD/F wereonly observed from extraction of the borosilicate surfaces. A globalreaction model is proposed that is consistent with the observed product distributions. Similar experiments with dichloroacetylene indicate greater reactivity in the absence of the copper catalyst. Reaction is observed in the gas-phase and in the presence of borosilicate surfaces at low temperatures. The formation of hexachlorobenzene is only observed in the presence of a copper catalyst. PCDD/F were only observed from extraction of the borosilicate surfaces. A global reaction model is proposed for the formation of hexachlorobenzene from dichloroacetylene. [ABSTRACT FROM AUTHOR] |
| Databáze: |
GreenFILE |
| Externí odkaz: |
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Full Text from ScienceDirect