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Regeneration enclosure and process for the regeneration of a catalyst for aromatics production or reforming with improved oxychlorination ability
Regeneration enclosure and process for the regeneration of a catalyst for aromatics production or reforming with improved oxychlorination ability
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机译:具有用于改进的氧氯化能力的芳烃生产或重整用催化剂的再生罩和用于催化剂再生的方法
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摘要
In the process for the re-generation of catalysts used in the production of aromatic hydrocarbons or for reforming, the catalyst comprises a support, a noble metal and chlorine, and the process consists of successive stages of combustion, oxychlorination and calcination : in the oxychlorination stage, a chlorinating agent, an O2-containing gas and water are introduced, in proportions such that the molar ratio H2O / HCl is 3 - 50.The stage is operated in the presence of an oxychlorination gas containing less than 21% O2 and at least 50 ppm of Cl(calculated as HCl) and at 350 - 600 degrees C. Also claimed, is the re-generation reactor used in the process.
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