Question for AL MOHANDESSOUN

Hello Dear
i would like to ask you if you have available in your stock the following item:

1-Micro-porous membrane for the separation of methane and CO2-H2S (Biogas).
2-filter or sponge of NaOH
3- if this technique is not available and you have other choices for the separation of methane from the biogas please let me know about it.