CRI NEWSROOM

January, 2005




In November 2004, CRI successfully started up a low temperature selective catalytic reduction (SCR) system on multiple furnaces at the Shell refinery in Deer Park, Texas. This is the first SCR to be retrofitted to an existing set of furnaces to comply with the Houston Galveston Clean Air Initiatives. The SCR catalyst and structure was designed and manufactured by CRI with the engineering support and balance of system provided by Kellogg, Brown and Root, Houston, Texas.

The Shell Furnace Retrofit Project encompassed the ducting of the exhaust gas from five furnaces into one common duct. This common duct was then routed into a CRI SCR system which was designed to operate at temperatures as low as 450F. NOx emissions were guaranteed at less than 5 ppm. After installation of the CRI SCR System, NOx reduction exceeded 90% with an ammonia slip of less than 10 ppm..

The Houston Galveston clean air initiative requires NOx emissions to be reduced by 80% at all plant sites encompassing the Houston Galveston 8 county attainment area.