Comparison of the advantages of dry and wet methods for sulfuric acid production (experienced colleagues are welcome to share their insights)
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Currently, there are mainly two methods for producing acid from hydrogen sulfide: the dry method and the wet method. When producing acid from hydrogen sulfide using a dry process, it is similar to the process used for producing acid from pyrite; that is, the high-temperature flue gas generated by burning hydrogen sulfide-containing acidic gases has its heat recovered in a waste heat boiler, after which it is purified through acid washing and drying before being used in the conventional two-stage compression and two-stage absorption process to produce sulfuric acid. The so-called wet process. The high-temperature flue gas generated by the combustion of hydrogen sulfide, an acidic gas, is fed into a converter after the high-temperature waste heat has been recovered in a waste heat boiler; sulfur dioxide is oxidized to sulfur trioxide in the presence of water vapor using a catalyst, and sulfur trioxide along with water vapor is directly condensed into sulfuric acid in a condenser. The shrimp wants to discuss with everyone which of these two methods for producing sulfuric acid is better (taking into account various factors such as the manufacturing process, equipment, costs, and environmental impact). :handshake
It seems that the wet process for producing sulfuric acid is not aimed at obtaining sulfuric acid itself, but rather at the steam that is generated, which is valuable~~~
It makes sense – the dry process generates less steam; about 1.2 tons of steam are produced per ton of sulfuric acid. The wet process produces more steam, with over 2.1 tons of superheated power steam generated per ton of sulfuric acid. The main reasons for this are environmental protection and cost efficiency! !