Patent ID: 6977066
Filing Date: 2005-12-20
Classification: C01B,Y02P

Abstract:
1. A process for producing chlorine comprising the step of oxidizing hydrogen chloride in a gas containing hydrogen chloride with a gas containing oxygen in the presence of a catalyst, wherein the oxidation of hydrogen chloride is carried out in at least two reaction zones each comprising a catalyst-packed layer, which are arranged in series, and a temperature in at least one of said reaction zones is controlled with a heat exchange system, which provides a jacket outside said at least one of said reaction zones, wherein said jacket contains a heating medium that removes the heat of reaction generated by the reaction in said at least one of said reaction zones; and wherein said gas containing hydrogen chloride and said gas containing oxygen are simultaneously introduced in at least the first reaction zone, wherein at least two reaction zones each comprising a catalyst-packed layer, which are arranged in a series, are formed by packing at least two kinds of catalysts in a tubular reactor; and/or by independently controlling the temperatures of said at least two reaction zones.