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I am currently working in Naphtha hydro treater, In our naphtha hydro treater stripper and Splitter both column is there, stripper is for removal of h2s and splitter is for removal light naphtha. So can you tell us the what is the difference between Stripper and Splitter?
Additional info:- Stripper and Splitter both are having reboiler for temperature controller.
 
Answers
13/12/2011 A: keith bowers, B and B Consulting, kebowers47@gmail.com
A reboiled and refluxed 'stripper' is used in this application to remove all traces of H2S and very light ends from the naphtha. SOME liquid must be taken overhead to carry the H2S overhead and out. Even fractional PPM amounts of H2S ruins the copper strip corrosion test results.
A 'splitter' is simply a distillation column designed to separate light and heavy components. IF one did not have the 'stripper' first, the overhead product from the 'splitter' would be 'sour' with H2S and the top end of the column and top reflux system would require alloy/gunnite protection from H2S embrittlement and corrosion.
12/12/2011 A: Ralph Ragsdale, Ragsdale Refining Courses, ralph.ragsdale@att.net
Stripping out the H2S and separating or splitting the light ends from the main product can be done in one column. However, some time ago it was discovered that a lower level of metallurgy and reduced cost are achieved when the two steps are designed to occur in two columns. The first column is a simple, low cost vessel made of carbon steel, except for the overhead condensing system which is a corrosive condition. Carbon steel is adequate because just stripping out H2S is conducted at a relatively low temperature, even though H2S is present. The second step is conducted at a higher temperature, but without H2S present, carbon steel is adequate for the column for the most part there as well.