Method for manufacturing sulphuric acid
AssigneeOcp SA
InventorYassine Azhari
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Abstract
The invention relates to a method for manufacturing sulphuric acid, which involves converting sulphur dioxide SO2 into sulphur trioxide SO3, by injecting gaseous sulphur dioxide into a converter (1) inside which at least one mass (2) of a catalyst for the conversion is present, and according to which, during phases in which the injection of the gaseous sulphur dioxide is stopped, the space inside the converter (1) is heated in such a way as to maintain a minimum temperature of 200° C., and preferably 250° C., within each catalyst mass (2), characterized by the fact that the stopping of the injection of the sulphur dioxide is slaved to the starting of the heating, and vice versa.
Claims8
A method for manufacturing sulfuric acid, comprising:
- injecting gaseous sulfur dioxide into a converter for the conversion of sulfur dioxide SO2 into sulfur trioxide SO3, the converter comprising at least one mass of a catalyst for the conversion;
- and
- stopping the injection of gaseous sulfur dioxide into the converter and automatically heating the space inside the converter to maintain a minimum temperature of 200° C. within the at least one mass of catalyst.
Dependencies are inferred from the claim text.