Process and equipment selection of a 100 kt/a sulphuric acid plant by sulphur blended with acid gas in Xinjiang Alar Fulida Fiber Co.,Ltd. are introduced. Blended with sulphur,large quantities of acid gas consisting of CS2 and H2S generated in viscose fiber production as raw materials,3+1 double absorption process is applied to prepare concentrated sulphuric acid. SO2 and acid mist in tail gas were removed by circulating desulphurization solution with w(NaOH)30%,and SO2 concentration is less than 400 mg/m3,acid mist less concentration is less than 30 mg/m3.
Sulphuric Acid Industry
sulphuric acid production