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Forum index » Science and Technology » Engineering » Chemical
SO2 oxidation w/o a catalyst
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steve2
science forum beginner


Joined: 12 May 2006
Posts: 1

PostPosted: Fri May 12, 2006 3:24 pm    Post subject: SO2 oxidation w/o a catalyst Reply with quote

I am interested in the rate at which SO2 oxidizes to SO3 in the absence
of a catalyst. It seems like this ought to be a well known and
researched reaction. I know that at lower temperatures (below ~600) SO3
is favored and at higher temperatures SO2 is favored. Specifically,
what happens if I put SO2 with an excess of O2 into a plug flow reactor
(no catalyst, no photons) what will the conversion be? So far
everything I have seen is either about a sulfuric acid plant or photo
catalyzed in the Earth's or Venus's atmosphere.

Can anyone point me in the right direction?

Thanks
Steve Gerdemann
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mrdarrett@gmail.com
science forum addict


Joined: 28 Dec 2005
Posts: 55

PostPosted: Fri May 12, 2006 9:47 pm    Post subject: Re: SO2 oxidation w/o a catalyst Reply with quote

steve wrote:
Quote:
I am interested in the rate at which SO2 oxidizes to SO3 in the absence
of a catalyst. It seems like this ought to be a well known and
researched reaction. I know that at lower temperatures (below ~600) SO3
is favored and at higher temperatures SO2 is favored. Specifically,
what happens if I put SO2 with an excess of O2 into a plug flow reactor
(no catalyst, no photons) what will the conversion be? So far
everything I have seen is either about a sulfuric acid plant or photo
catalyzed in the Earth's or Venus's atmosphere.

Can anyone point me in the right direction?

Thanks
Steve Gerdemann


At 600 degrees and with an excess of oxygen, I don't think your pipes
will last very long...!!!

Not quite oxidation to SO3, but here's an interesting article
nonetheless...

http://en.wikipedia.org/wiki/Flue_gas_desulfurization

Cheers,

Michael
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p_bihari@yahoo.com
science forum beginner


Joined: 03 May 2006
Posts: 13

PostPosted: Wed May 17, 2006 9:24 am    Post subject: Re: SO2 oxidation w/o a catalyst Reply with quote

Well U need to check basics of Gibbs energy for this reaction and then
u can find out the probable temperature range at which this reaction is
theoretically possible w/o catalyst.

However, it doesnt give u the rate of reaction but luckiest thing is
that u have suffciient data available on this reaction for the
parameters required to calculate the rate of reaction.
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Google

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