CB&I designs and builds fuel-efficient plants that use all types of solvents to effectively remove carbon dioxide and hydrogen sulfide from natural gas streams. Onshore and offshore, we've supplied more than 60 sweetening, or acid gas removal, plants around the globe.

For more than 15 years, we've provided lump-sum, turnkey EPC services for gas sweetening plant projects, including new installations, expansions and retrofits. We can help with everything from concept through commissioning, offering integrated services that include detail engineering, procurement, fabrication and construction as well as plant startup and operator training. We can also perform HAZOP studies and front-end studies to assess project feasibility and capital, operating and maintenance costs.

Superior gas treatment. Our gas processing facilities are designed to help refiners meet the most stringent environmental regulations and processing requirements. We can build plants that achieve extremely low concentrations, sometimes less than 50 parts per million, of carbon dioxide, often eliminating the need for further treatment in low temperature/cryogenic facilities such as nitrogen rejection and helium recovery plants. We can also seamlessly integrate our sweetening plants with our liquids recovery plants to provide a robust processing solution.

A variety of design options. Our expertise covers the entire spectrum of gas sweetening technologies. We've designed acid gas removal plants that use a variety of solvents including MDEA, DEA, MEA and DGA, as well as proprietary solvent mixes. We can provide two-stage treatment plants that provide greater energy efficiency while delivering excellent CO₂ control. We've installed plants that utilize plate-and-frame or shell-and-tube heat exchangers and motor- or turbine-drive power. We've also worked with virtually every heating medium.