Sulphur, air and water are used to produce sulphuric acid. Air is blown through a drying tower to remove moisture from the air and then feeds into a sulphur burner. Molten sulphur and air burn to produce sulphur dioxide.
The sulphur dioxide passes into a converter where it is further oxidized over vanadium oxide catalyst beds to form sulphur trioxide.
The sulphur trioxide gas enters a tower where it is absorbed in wet circulating 98-99% sulphuric acid. A small slipstream of the resulting acid is diluted with water to produce either 93% or 98% sulphuric acid, which is then stored in tanks.
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发表于 6-10-2005 05:18 PM
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