A leading Indian supplier of process engineering equipment to the oil and gas industry approached SLB for an H2S removal package for an onshore gas treatment plant in western India. The end customer had requested H2S removal downstream of a glycol dehydration unit, which meant treatment of dry instead of water-saturated gas. Pipeline specifications mandated an H2S concentration <5 ppmv after treatment, and two gas purification units were required, one online and the other on standby.