| 摘要 |
The invention relates to a method for producing sulphuric acid. According to the invention, a crude gas containing SO2 is produced in a sulphuric acid recovery installation, the crude gas is conducted through at least one reaction container, in which a catalytic reaction of SO2 into SO3 takes place and the SO3 formed in this process is converted into sulphuric acid. The SO2 emission of at least one sub-stream of the gaseous stream that exits the sulphuric acid recovery installation is hydrogenated in an aftertreatment step with a gas rich in H2. The gaseous stream containing H2S that is thus formed is fed to the H2S scrubber of a coke-oven gas installation or petrochemical installation. The invention also relates to an installation for carrying out said method. |
