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The transformation of dichloromethane (DCM) was investigated over NaX and NaY zeolites under the following conditions: fixed-bed reactor, 1000 ppm of DCM in wet air, space velocity of 20,000 h −1 , temperature between 220 and 450°C. At short time on stream, there is, with both zeolites, a stoichiometric reaction of DCM and water with the ONa groups, an oxidation of the formaldehyde product,...
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