METHOD AND INSTALLATION FOR PRODUCING SULPHURIC ACID.

摘要

The invention relates to a method and an installation for producing sulphuric acid. First of all, a product gas flow (5) containing sulphur dioxide is produced. The product gas flow (5) is supplied to a reaction chamber (1). A catalyst (3) is located in the reaction chamber (1). In the presence of said catalyst sulphur dioxide reacts to form sulphur trioxide. In further parts of the installation the resulting sulphur trioxide is converted to sulphuric acid. According to the invention, an oxidising gas flow (6) is supplied to the reaction chamber (1) alternately with the product gas flow (5).