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65% vs. 25% Oleum

65% vs. 25% Oleum

65% vs. 25% Oleum

(OP)
I am looking for advice on the difference in footprint patterns between 65% Oleum and 25% Oleum.  Keeping the same amount, around 170,000 pounds, and everything else equal.  At 65% Oluem our RMP footprint is right at 1.0 miles.  We may be able to use 25% Oleum in our process and I was just wondering how big the SO3 difference would be.  I am aware that 65% Oleum is 65% SO3 diluted with 35% H2SO4 and that 25% Oleum is 25% SO3 diluted in 75% H2SO4.  Is it a linear difference in how it will foot print or is it exponentially different in footprint size, when keeping all other factors the same?  I am thinking that it will be MUCH smaller, but I am not an expert on Oleum and our supplier can't seem to return phone calls.  Any Oleum experts or footprint experts out there???  Thanks!

Bryan
www.SAFTENG.net

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