2 replies to this topic

[Geetanjali]

Hello everyone,

 

I am recovering Hydrogen from a mixture of gases (mostly light alkanes C1-C4) using a PSA unit. Based on literature reports, I recover 85% H2 and the rest 15% goes with the C1-C4 gases, which are eventually combusted to make steam and finally electricity. 

 

My concern is that the 15% H2 is still significant from the environmental perspective. It shows huge life cycle impacts. My question is :  Is there a way I can recover the remaining 15% H2? May be using 2 PSA units-in series? 

 

Any guidance will be highly useful for me.

 

Thanks,

Geetanjali

Edited by Geetanjali, 18 November 2022 - 04:04 PM.

[breizh]

Hi,

We understand about the % recovery but what about the quantity at stakes? (kg/h)

 

note : One PSA unit = 2 beds ( 1 in service ,1 in regeneration)

 

Breizh

[Geetanjali]

Thank you Breizh!

 

This was a good read and quite helpful. I ended up utilizing a combined PSA and adsorbent material separation (hybrid approach) to further improve the H2 recovery. I followed the attached patent.

 

 

 

Thanks

Geetanjali

Attached Files

•  US5753010.pdf   1.63MB   17 downloads