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A two-zone circulating fluidized bed reactor comprising an oxychlorination zone and a chlorination zone significantly improved the conversion of HCl to Cl 2 . A supported catalyst for the process composed of 5% of copper, and promoters K in a molar ratio of K to Cu of one and 2.5% CeCl was highly active and stable. The optimal operation temperatures are 390–400°C in the oxychlorination zone...
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