Dear colleague, 

i suggest the following file.

If the gas is actually going to be exclusively used as H2 plant feed you probably do not need to treat it at all.  Most H2 plants have a CoMo reactor to turn any S compounds into H2S and  ZnO bes to adsorb theH2S.  CO and CO2 do not need to be removed fro H2 Pant feed

A sieve system to adsorb H2S seems dangerous to me.  It would be much better to create a sulfide (like ZnS) than to adsorb and concentrate H2S

Dear Prof. Rosalyn Artho-Phan,

                                                        If you are planning on designing an extentable network technology of Natural Gas then given that it would be a cybernetic information network system for controls Dbranes String Theory Functor Algebra Calculus (Mallick, Hamburger, Mallick (2016)) will come into the technology and you have to take into consideration the diameter-depth ratio of the pieline network, hence the sieve functor algebra calculus will exert a quantum mechanical pressure on the gas String which as Mr. Manner has pointed oit may require either reinforced materials or more elastic materials for the pipelines. Thus Reservoir Engineering developed by one of us String Theoretically - Mallick (2016) on www.researchgate.net/Soumitra K Mallick using the above will play a role.

Soumitra K Mallick

for Soumitra K Mallick, Nick Hamburger, Sandipan Mallick

I agree with Adel Oueslati  that the molecular sieves (%A) that he linked to  are a reasonable solution for capturing H2S but then what do you do with it?  The environmental review and permitting process alone in California will cost significantly more than your 30 K$ budget.