Questions about pressure swing adsorption desulfurization
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Who knows what kinds of sulfur can be removed by pressure swing adsorption? After the water gas is semi-desorbed, there is no low desulfurization. Is it feasible to directly use pressure swing adsorption to desulfurize? Are there any such application cases? Will there be any impact on pressure swing adsorption desulfurization if the feed gas is oxygenated?
As auxiliary desulfurization, pressure swing adsorption can generally only remove about 90% of hydrogen sulfide and about 60% of carbon sulfur oxides in the raw gas. Therefore, it is better to add a desulfurization device before and after pressure swing adsorption.
Why do some companies (the raw gas contains a lot of CS2 and COS) only choose pressure swing adsorption desulfurization and then directly send it to methanol synthesis? Does the moderator think this is feasible? I work in desulfurization, so I don't know much about pressure swing adsorption.
2.0MPa two-stage operation, H2S removal efficiency >95%, COS: 80-90%
Pressure swing adsorption desulfurization does not affect desulfurization if the raw gas has oxygen. Because it is the co-adsorption of molecular sieves.
Thank you for your answers, but why do I worry about the coexistence of oxygen and sulfur in pressure swing adsorption? The explanation they gave is that elemental sulfur is easily generated and the adsorbent cannot be regenerated. This explanation has a certain basis in the desulfurization process. What does the so-called molecular sieve co-adsorption mean? What should we do with CS2? If you are asked to design such a system, how should you design it?
Is there any case of separate desulfurization by pressure swing adsorption? Thanks!
Yes:D:lol:lol:lol:lol