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· Unlock · Lock 16 May
Chris Haslego
Ankur just published one of those blog entries that will be referenced around the internet for years to come. This is really great stuff! Perforated Pipe Distributor Sizing Calculations (otherwise know as "How to Size a Sparger") at http://www.cheresources.com/invision/blog/4/entry-353-perforated-pipe-distributor-sizing-calculations/
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· Unlock · Lock 15 May
PKS
"Its not the END, Its the end of beginning!!" Where one can get this quote? any answers?
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Submitted Chris Haslego, Nov 21 2011 11:21 AM | Last updated Apr 05 2012 09:25 AM

Category:	Reactions and Processes
Question:	How is sulfuric acid produced on an industrial scale including reactants and reaction conditions?
Keywords:	elemental,sulfur,burn,dioxide
Answer:	First, elemental sulfur is burned is a furnace to form sulfur dioxide:S + O₂ ---> SO₂The sulfur dioxide is reacted with oxygen over a vanadium catalyst:SO₂ + 1/2 O₂ ---> SO₃Typical feeds for the reactor that converts sulfur dioxide to sulfur trioxide are 11% SO₂, 16% O₂, and 79% N₂. The nitrogen does not participate in the reaction (inert). A 1000 ton/day plant would have a reactor with an area of about 200 ft². Typical reaction temperatures are between 800 0F and 1100 0F depending on many factors. Once the sulfur trioxide is formed, it is bubbled through water where the final reaction takes place:SO₃ + H₂O ---> H₂SO₄A process flow diagram (PFD) for this process appears in a book entitled Elements of Chemical Reaction Engineering, 2nd Edition, p 435, by H. Scott Fogler. Published by Prentice Hall, copyright 1992, ISBN 0132635348