High-concentration SO2 conversion technology
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I would like to ask everyone: if the SO2 concentration in the feed gas is over 40%, the O2 concentration is 0, with the remainder being N2 and CO2, what are some good methods for producing acid, excluding the Otto Kumpm technology and Bayer’s technology?
Hehe! The temperature of the gas also needs to be considered; only then can the levels of other impurities be taken into account; otherwise, it’s hard to say anything
We must find a way to obtain oxygen; the amount of oxygen needed depends on the catalyst used. I would like to ask what process can be used to produce SO2 without the use of oxygen?
It also depends on the production capacity. It’s not difficult to implement a small experimental setup.
I agree with the third floor – I went to the sulfuric acid plant to learn*, but I’ve never heard that there’s no oxygen in the feed gas Could it be made clearer?
Oxygen supplementation is necessary no matter what method is used.
In the absence of oxygen, it is likely that the sulfur sublimated in the flue gas will exceed the limit.
I don’t understand; how can sulfuric acid be produced without oxygen? Where do the oxygen atoms in sulfuric acid come from?
The composition of your feed gas is indeed a bit unusual; mainly, its source is suspicious, so we can set that aside for now. If you want to know what good methods exist for producing acid, it depends on to what extent you intend to dilute it and what gas you will use for dilution. If you don’t talk about Otokumpu technology and Bayer’s technology, does that mean you’re not planning to use high-concentration SO2 for acid production? Because it seems there is no better way to deal with high concentrations of SO2 at the moment. If the SO2 concentration is diluted to a lower level, a regular process will suffice. :P
I’m sorry everyone; I didn’t explain it clearly enough. There is indeed no O2 in the feed gas; obviously, O2 needs to be added, and processes similar to those used by Consfu generate such feed gas. OttoKump is a patented technology; its cost is too high to be affordable, and in my opinion it has certain drawbacks. Bayer also has a high-concentration acid production process, but it has only just been put into use; it’s not clear how it performs! At the same time, I don’t want to use conventional low-concentration acid production methods, as it results in excessive waste. I just want to know if there are any other high-concentration conversion technologies; after all, high-concentration acid production processes represent a direction for development, and there will likely be many similar projects in the future.
This post was last edited by justinsoul on 2010-1-21 at 10:38. Where did you hear that Otto Kumpf’s high-concentration conversion technique has drawbacks? I think this is the best acid production process available at the moment, and the investment seems to be substantial. But you haven’t actually calculated or compared it; how do you determine that his investment is larger than a regular investment?