FABRIC
FILTER       NEWSLETTER 

 

February 2009
No. 400

Mississippi Lime

Mississippi Lime in conjunction with the TVA presented a paper focusing on the use of sorbent injection of hydrated lime when used in conjunction with  a baghouse  for  emission control of SO3 and HCl at a 250MW facility. They note that most large scale sorbent injection systems for SO3 and HCl have been evaluated on ESP systems.

 Generally, a review of the subjects of the various papers presented seems to indicate a trend towards focusing on sorbent injection (specifically hydrated lime, trona, carbon and sodium bicarb.) O’Brien and Gere  presented their decision tree using case studies to show that older, smaller  coal fired boilers (where remaining life may be in doubt) can quickly install DI systems at a fraction of the cost of scrubbing.

 

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