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AM-11-05 Operation of the Holly Refining’s FCC SCR Unit in Tulsa, Oklahoma

Merle Fritz Process Engineer Holly R&M Tulsa, OK Kevin Linfield Engineering Director Airflow Sciences Corporation Livonia, MI Dennis L. Salbilla, Sales Manager Haldor Topsoe, Inc. Houston, TX

Format:
Electronic (digital download/no shipping)

Associate Member, International Member, Petrochemical Member, Refining Member - $0.00
Government, NonMember - $35.00

Description:

A SCR (Selective Catalytic Reduction) unit was installed on the Holly (formerly Sinclair) Tulsa FCCU with flue gas entering the unit for the first time in late November 2009. The existing ESP (Electrostatic Precipitator) was removed from service resulting in a “high dust” content flue gas SCR design. This required a custom SCR catalyst that would withstand the erosive environment and still perform well over a 5 – year continuous run. The FCCU SCR unit has been in service for 1 year without any maintenance outages. NOx reduction is excellent with outlet NOx values below 20 ppmvdc @ 0% O2 and this is achieved without ammonia injection. Apparently, the amount of NH3 formed in the Regenerator is in ~1:1 proportion with NOx. Pressure drops across each of the two separate SCR catalyst layers are less than 1.5” WC.

Product Details:

Product ID: AM-11-05
Publication Year: 2011