Comparison of CO and H2 separation methods
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I’m working on a competition project at the moment, where we need to purify CO and H2 from syngas to achieve very high purity levels. We are considering deep cryogenic separation or PSA for this purpose. I would appreciate it if anyone could advise me on which separation method would be suitable, or whether a combination of both methods could be used to separate all three gases Also, which company in China is currently able to provide reliable equipment for this purpose? Volume percentages of the raw gases: CO – 33.1%, H2 – 64.2%, N2 – 2.7%. Raw gas flow rate: 101,795 Nm3/h. The purity of H2 should be 99.9%–99.999%, and the purity of CO should also be as high as possible. Thank you all!
PSA is a top-tier enterprise in Sichuan Tianyi.
Undoubtedly, PSA – the specialized adsorbent for CO in nitrogen-containing systems – is available at South China University of Technology
Hello, I didn’t make it clear before – what I want is pure H2. The amount of N2 in the CO doesn’t matter, as N2 will be added to CO later as another shielding gas for the reaction. So in that case, does PSA still have an advantage over cryogenic separation?
If I only want relatively pure H2, and it doesn’t matter much that CO and N2 are not separated, should I still use PSA? Thank you
Both Huaxi Institute and Sichuan Tianyi are fine; both of them do a good job. Relatively speaking, Huaxi Institute has a larger market share.
If you only need relatively pure H2, and it doesn’t matter much if CO and N2 are not separated, then PSA is the better choice – as your requirement for H2 purity is high, and deep cooling alone cannot meet that standard; a combination of deep cooling and PSA is necessary.
PSA – this gas can be separated very well using PSA, with low energy consumption and no moving parts required!
I suggest you choose cryogenic separation instead.
Is it solved? I’m from South University of Technology; we have membrane materials that can separate hydrogen from other gases, thereby producing highly pure hydrogen. The hydrogen purity can reach 99.999% or higher; I’m not sure if such a high level of purity is required on your end You can add me on QQ at 2196940349 or by phone at 17701582742
Based on the poster’s description, the PSA process seems to be the more cost-effective option. For hydrogen production and CO production using PSA technology, Beida Pioneer in China is a leader in this field, having carried out numerous projects in the past couple of years. It would also be helpful for you to consult several companies and compare their proposals.