Casala to license RTI’s warm-gas desulfurization process technology

Casale and RTI International have signed a global licensing and cooperation agreement that grants Casale the rights to be the exclusive sub-licensor for RTI’s breakthrough warm gas desulfurization process technology that produces cleaner energy and chemicals from coal and other high-sulfur feedstocks.

This advanced market-ready technology enables high-sulfur gas streams, such as synthesis gas from coal or petcoke gasification, to be cleaned at elevated temperatures (250-650°C), thus reducing or eliminating the need for substantial gas cooling and expensive heat recovery systems. This increases the overall process efficiency, reduces greenhouse gas emissions, and also reduces the capital and operating costs of the entire gas cleanup block by as much as 50% when compared to conventional cleanup technologies.

This technology uses a novel transport reactor design and a unique high capacity, regenerable, attrition-resistant sorbent with excellent performance. This technology can achieve up to 99.9% removal of total sulfur from syngas at temperatures as high as 650°C and over a wide range of sulfur concentrations and operating pressures. The process was demonstrated on a 60,000 Nm³/h synthesis gas stream in a coal/petcoke gasification plant at Tampa Electric’s Polk Power Plant in Florida, where it operated successfully for more than 3,500 hours.

The integration of this technology with a downstream activated-amine carbon capture process enabled further reduction of total sulfur in the syngas to sub-ppmv concentrations (as low as 100 ppb), suitable for stringent synthesis gas applications such as chemicals, fertilizers, and fuels.

• Most Read
• Most Commented