is a full-service engineering, procurement and construction company that supplies sulfur removal and recovery technologies to the hydrocarbon processing industry. Founded in 1987 as The Professional Associates (TPA), our company became part of the CB&I family in 2002.

Every process package we deliver is backed by years of practical and design experience in refining, chemical processing and gas processing. We provide full EPC services for new construction, plant expansions and de-bottlenecking of existing operations.

Setting the standard. We are regarded as industry leaders in sulfur control. Our proprietary technologies are widely used in the petroleum refining, petrochemical processing, chemical manufacturing and gas processing industries. We develop solutions that help make the environment cleaner and help our customers conform to local, national and international regulatory standards.

Our reputation is based upon our long history of providing reliable and effective technologies and services. We’ve delivered more than 250 projects, including Claus sulfur recovery units, oxygen enhancement systems, tail gas treaters, amine-sweetening systems, sour water strippers and liquid sulfur degassers for refining and processing plants around the world. The combined capacity of sulfur recovery units that we have licensed or installed exceeds 2,000,000 tons per year.

We provide superior solutions because of our technical expertise and our commitment to focusing exclusively on sulfur processing. Every year, we organize two popular events to share our expertise—our Sulfur Seminar and our Amine Users Roundtable. These seminars are known throughout the refining industry, and many refiners utilize them as training for new sulfur block engineers.

Innovations in sulfur control. Every day, we’re designing and building innovative solutions that help our customers comply with environmental stands and protect the world’s natural resources. Our proprietary solutions include the Claus Combustor™ Burner, our patented HotDeck™ modular burner/thermal reactor/waste heat boiler system, the SunDeck™ modular diverter valve system and our GeorgeBox™ illuminated/sealed liquid sulfur observation port, which reduces potential operator exposure to H₂S fumes.

Our standing as a premier supplier of sulfur control solutions is built on our record of designing and delivering reliable solutions, employing leading-edge technologies, and supporting our customers with on-site operating expertise and exemplary service for more than 15 years.

For more information about our company's capabilities, please visit Technologies and Services.