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Reboiler


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#1 sreekanthtm

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Posted 27 May 2017 - 11:47 AM

In sour water stripper unit and amine regeneration unit, kettle type reboilers are used and not thermosiphon reboilers. What is the reason behind it? Explain the design criteria for both reboilers...

 

Thanks in avance



#2 Bobby Strain

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Posted 27 May 2017 - 02:18 PM

I don't think your statement is correct. In fact, thermosyphon reboilers are often used in these services. In amine regenerators, it's quite common to use forced circulation reboilers to limit the film temperature.

 

Bobby



#3 sreekanthtm

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Posted 27 May 2017 - 02:48 PM

Then I would like to know why kettle type reboilers are used. What is advantage over thermosiphon?



#4 Bobby Strain

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Posted 27 May 2017 - 04:32 PM

Try a Google search. There you will find the answer. Be sure you seek a reputable source. It's not uncommon for designers to employ the wrong equipment for a service. You might find some useful material at red-bag.

 

Bobby



#5 Art Montemayor

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Posted 27 May 2017 - 06:49 PM

Kettle reboilers have been used in amine regeneration service partially because of tradition - and partly because of a characteristic that we've mentioned and discussed in our Forums for many years now: the kettle design has inherent turn down capabilities.

 

A thermosyphon reboiler has a very "tight" or rigid design for service duty and little or nil turn down capability.

 

As Bobby infers, this should be common knowledge passed on at the class room level or found in the good text books.






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