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arvinthdavinci
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Join Date: May 2009
Posts: 7

Flue gas

05/03/2011 12:31 AM

Why SO3 (Sulphur trioxide) not taken in account for Flue gas emmision standard?
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Tornado
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Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
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#1

Re: Flue gas

05/03/2011 1:12 AM

Some guesses:

It may be that typical SO3 emissions are much less than typical SO2 emissions, and therefore of minor concern.

Possibly the treatment of SO2 emissions also takes care of SO3 emissions, so that no further or separate treatment is needed.

(??)

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Anonymous Poster #1
#2

Re: Flue gas

05/03/2011 10:26 AM

You may not really be getting much of the highly reactive S03 in the emission (SO3+H2O = H2SO4)

Usually the SO3 will immediately react with the various matrices available- Alumina, or any metal oxides- which are also deliberately placed exactly for this purpose.

BTW: SOx testing is supposed to encompass all SnOm s ?
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