Title: Recent Case Study of Wet FGD Performance Improvements at B.L. England unit 2 Using ALRD Technology - Electric Power May 10-12, 2011 by Mike Hammer, Sr. Process Engineer, MET

RC Cape May Holdings LLC’s B.L. England Station Unit 2 in Beesleys Point, NJ was initially retrofitted in 1994 with an open spray tower, limestone wet flue gas desulfurization system to comply with the 1990 Clean Air Act. An Administrative Consent Order (ACO) issued in 2006 by the New Jersey Department of Environmental Protection required the original WFGD SO2 removal efficiency to be increased effective May, 2010 from 93 to 97% while firing the design 3.2% sulfur bituminous coal. In 2009, a project was initiated to upgrade the Unit 2 FGD system to meet the more stringent SO2 emissions specified by the ACO of 0.150 lbs/MMBtu on a 30 day rolling average without adding significant system pressure drop. WorleyParsons served as the plant’s architect engineer for the project. The approach used was the Absorber Liquid Redistribution Device (ALRD®), a patented and proprietary technology provided by Marsulex Environmental Technologies (MET). The ALRD® technology was incorporated into the Unit 2 FGD during two short outages in November 2009 and March 2010. The ALRD® offsets the phenomena known as “sneakage” which represents a fractional part of the flue gas that passes through an open spray tower, near the vessel wall, due to the physical limitations in the arrangement of the spray headers and nozzles near the circumference. This improvement is accomplished with a relatively simple retrofit having a negligible increase in pressure drop across the tower. Additionally, the ALRD® re-directs any absorber slurry that would otherwise to cling to, and run down, the tower wall back into the absorber spray zone, thus improving the usage of the recirculated slurry. The results of the ALRD® installation at B.L. England exceeded expectations by removing over 97% of the SO2 over a broad range of operating conditions. This paper reviews the ALRD® upgrade project and presents pertinent field data from before and after the upgrade.

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   Person Information

  •     Hammer, Mike  -  Marsulex Environmental Technologies
   Application Sequencing
Company  Product  Process  Other  Subjects  Event  Event  Date  Location  Publication  Publication  Date Text  Descriptor

  • Marsulex Environmental Technologies

  • FGD

 

  • Electric Power 2011

 

  • 5/10/2011

 

  • Chicago, IL USA

 

 

 

  • Speaker