PROCESS FOR THE PRODUCTION OF CHLORINE USING A CERIUM OXIDE CATALYST IN AN ADIABATIC REACTION CASCADE

摘要

A process for the production of chlorine by thermo-catalytic gas phase oxidation of hydrogen chloride and oxygen is described, the process comprising at least (1) a cerium oxide catalyst and (2) an adiabatic reaction cascade, containing at least two adiabatic stages connected in series with intermediate cooling, wherein the molar O2/HCl-ratio is equal or above 0.75 in any part of the cerium oxide catalyst beds.

主权项

1. A process for the production of chlorine by thermo-catalytic gas phase oxidation of hydrogen chloride gas with oxygen in the presence of a catalyst, and separation of the chlorine from the reaction products comprising chlorine, hydrogen chloride, oxygen and water, wherein
a) a cerium oxide is used as catalytically active component in the catalyst and b) the reaction gases are converted at the cerium oxide catalyst in an adiabatic reaction cascade, comprising at least two adiabatic reaction zones with catalyst beds and which are connected in series by an intermediate cooling zone for cooling the reaction products, the molar ratio of O2/HCl is at least 0.75 in any part of the catalyst beds comprising cerium oxide.