Advantages and disadvantages of 3+1 and 2+2 in the sulfuric acid process
Thread Content
What are the advantages and disadvantages of 3+1 and 2+2 in the sulfuric acid process? Our factory uses both of these methods, but we still aren’t sure about the advantages and disadvantages of this design At the beginning of entering Haichuan, since there are already relevant issues, no discussion will be held on this topic here. Thank you all. This post was last edited by armtt on 2009-3-19 11:18]
Domestic sulfur-based acid production enterprises generally adopt a \"3+1\" two-turn two-absorption process flow; some individual enterprises use a \"2+2\" two-turn two-absorption process flow, and certain enterprises employ imported vanadium catalysts. Although the conversion rate is high in the initial period after starting driving, allowing compliance with **emission standards**, it is difficult to maintain such compliance on a long-term basis. To reduce the total sulfur dioxide emissions and improve sulfur utilization, an additional conversion step is required; the \"3+2\" two-conversion two-absorption process can be employed.
I would like to ask what the advantages and disadvantages of the “3+1” and “2+2” processes are respectively? http://bbs.hcbbs.com/thread-345943-1-1.html