CB&I specializes in providing effective sulfur control and removal solutions to the global refining industry. A true EPC company, we provide complete design-build services for Claus plant projects on a lump sum, turnkey basis. We’ve designed more than 125 sulfur plants, built more than 50 new Claus sulfur recovery units (SRUs) and revamped more than 75 SRUs for refineries around the globe. These projects include more than 50 units that utilize our patented oxygen enhancement technology.
Many refiners require additional Claus SRU capacity to meeting today’s emission standards, but SRU expansion and additional construction can be costly. CB&I’s patented oxygen enhancement solutions offer refiners a way to optimize the capacity of existing or new Claus plants.
Our oxygen enhancement technologies were developed for the thermal stage of the Claus process. When applied to new SRUs or as retrofits, these enhancements can aid in processing difficult feed streams, increase Claus plant capacity and reduce operating costs while optimizing sulfur recovery. Our oxygen enhancement solutions include:
Both technologies utilize our patented OxyPac™ advanced modular control system, which regulates the plant’s transition into and out of the oxygen-enhanced mode of operation and reduces oxygen consumption. Claus Units utilizing these innovations reliably remove 95-97% of elemental sulfur from the gas stream. The feedstock can be sent directly to a tail gas treating unit for additional sulfur recovery.
CB&I has several proprietary equipment items that we believe improve the reliability of the SRU and are integral to achieving the desired recovery performance: