Cormetech is fully positioned to converge proven mobile and stationary SCR technology for Marine SCR systems. Cormetech catalysts are well-suited for NOx reduction following combustion of high sulfur marine fuels as marine applications have characteristics of both mobile and stationary applications.
Cormetech has significant experience with a broad range of gaseous, liquid, and solid fuels including: natural gas, refinery gas, syngas, diesel oil, crude oil, heavy fuel oil, vacuum residual oil, orimulsion, asphalt, coal, petroleum coke, wood, and biomass. The experience base includes light oil, heavy oil, and asphalt fired units with fuel sulfur levels ranging from 0.1% to 5.4% and units with over 50,000 operating hours on such fuels. Thus, marine SCR requirements are well within Cormetech's existing experience base.
Cormetech understands catalyst deactivation and the most likely mechanisms for marine applications. For larger marine engines and heavier fuels, SCR reactor design and catalyst selection can be similar to stationary applications. With marine installations, it is key to manage the SCR interaction with sulfur and the SCR poison loading from the heavier fuels and lube oils.
The management of reversible deactivation due to ABS pore plugging at low operating temperatures is paramount to the feasibility of the of post turbocharger marine SCR system. If this can be overcome, the longer term deactivation of the SCR catalyst due to poisons present in the fuel, lube oils, and flue gas can be addressed.
Marine SCR includes aspects of mobile and stationary engines. Cormetech's SCR catalysts have been developed to address the specific needs of marine applications