http://www.ietl.in - Unconventional gas refers to natural gas resources trapped in coals, shale, coal bed methane (cbm), and tight sands. H2S removal from shale gas is extremely critical. IETL offers its bioskrubber for h2s removal from shale gas. IETL offers biogas upgradation system for removal of gas impurities from tar sand. Syngas will contain impurities like h2s, which need to be cleaned. IETL offers well tested bioskrubber for h2s removal from syngas.