Lower NOx levels are also achieved - an environmental plus. Dense phase catalyst coolers respond to today's reliability needs. They increase flexibility to crack heavy resid feeds with a design that minimizes tube erosion so that long operating runs are achieved. KBR coolers feature an improved mechanical design minimizing thermal stress during start-up or operational upsets. We have demonstrated such designs at length in other, more severe applications such as ammonia plant waste heat boilers.
Mechanical reliability is paramount in our designs.
Based on reports from refiners worldwide, and on our more than 50 years of designing new units and revamps, we believe the KBR unit is by far the most reliable in the industry. All the features in our FCC units have been analyzed for maximum reliability and low turnaround maintenance requirements. This yields feedstocks for associated alkylation and etherification processes required for reformulated fuels. Operating with heavier, more contaminated feedstocks. Reducing emissions from the regenerator.