Acid production with high-concentration SO2: pre-conversion + one-stage conversion and one-stage absorption process
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Help: In the process of producing sulfuric acid from high-concentration sulfur dioxide, what is the detailed process flow of the pre-conversion single-conversion single-absorption method? I’ve reviewed many documents, and it seems that the production of sulfuric acid generally involves two rotations and two absorptions, with sulfur dioxide concentrations not being very high. Now I have SO2 with a concentration of over 90%; if I want to produce sulfuric acid, a pre-conversion process followed by one rotation and one absorption should work, but I’m not entirely sure about the specific procedures. It appears that the desulfurization and acid production process used at Guodian Fuquan Power Plant in Guizhou is quite suitable, but I’m struggling to find any relevant reference materials! I’ve come here specifically to ask for help from all of you experts!
Contact the design firm directly to develop a plan
The 2x600 MW units at the Fuquan Power Plant of Guodian Duyun Power Generation Co., Ltd. use the organic amine method to recover SO2 from boiler flue gas, with 2x350 kt/a sulfuric acid plants built as supporting facilities. This acid production plant employs a one-turn one-suction process that uses high-concentration SO2 for acid production, pre-conversion, and low-temperature heat recovery.
Don’t let references restrict your thinking; be bold and innovative
First: additional oxygen is needed； Second: Catalyst temperature rise ； Third: Investment ； Fourth: operating costs. These are the basics.
From an economic perspective, considering the amount of sulfur dioxide, several hundred tons can be treated by using alkaline substances for absorption, thereby producing sulfites and sulfates； Thousands of tons can be produced of liquid sulfur dioxide ； Tens of thousands of tons; dry air can be added to produce sulfuric acid.
This. . We just participate in competitions; we don’t carry out actual production: lol
We are focusing on the desulfurization of 4*300MW generator sets, and turning the sulfur dioxide produced as a product. Previously we also considered producing sulfuric acid, but since it’s so cheap, we’re not sure what else to do
Mm-hmm, thank you, senior:lol
Mm-hmm, thank you, senior:lol
Mm-hmm, yes, that’s it; I saw it too