An Innovative and Flexible In-Situ Claus Degassing Technology
CSI’s patented ICOn™ degassing system helps refiners and gas plants overcome the challenges of having high levels of hydrogen sulfide (H2S) in the elemental sulfur produced in the Sulfur Recovery Unit (SRU). High levels of H2S present both a safety and environment risk.
The ICOn Degassing System reduces the H2S in the sulfur from 500+ ppmw to less than 10 ppmw with less than 4 minutes residence time. Sulfur is passed over a fixed-bed catalyst while simultaneously being sparged with a gas that carries away the H2S.
The unique arrangement of the ICOn degassing contactor enables it to be installed at the outlet of the SRU sulfur condensers. Thus, the sulfur is degassed before it enters the sulfur pit or any other sulfur storage container. The ICOn technology eliminates the need for storage of H2S-laden sulfur and the associated risks.
The ICOn degassing system can use a large variety of sparge gases including SRU process gas, steam, nitrogen, and air. The spent gas can be sent to a variety of destinations including an incinerator, the TGU, a mid-point in the SRU, or the reaction furnace at the beginning of the SRU. This flexibility is unprecedented in sulfur degassing.
Each system is custom designed, configured, and manufactured to provide the most optimal and cost-effective solution for each application. Our technical experts are available to assist you and provide technical consulting throughout the design, commissioning, and operating phases.
- Reduce potential personnel exposure to H2S in sulfur storage and handling
- Improve sulfur pit vapor recovery operation and reduce emissions
- Increase flexibility of treatment of an oxygen free waste stream