NITRIC ACID PLANT AND PROCESS WITH HEAT RECOVERY SYSTEM

Abstract

Process for the synthesis of nitric acid comprising a catalytic oxidation step of an ammonia feed in the presence of an oxidant to yield a nitrogen oxide-containing gas, an absorption step of said nitrogen oxide-containing gas in water to produce nitric acid and a tail gas, wherein said oxidant is subjected to multiple compression steps prior to said oxidation step, said multiple compression steps comprise at least a first compression step and a second compression step, wherein inter-cooling is carried out between said compression steps, wherein said inter-cooling comprises a first cooling step in which the compressed oxidant is cooled with a cooling medium selected from a stream of tail gas, a demineralised water stream, or at least a portion of said ammonia feed.

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