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End boiling point of crude oil

End boiling point of crude oil

End boiling point of crude oil

(OP)
Is there anyone who can explain to me, how a full TBP curve can be obtained? I mean how can be characterized fractions with boiling points above 540 degree celsium? In our laboratory we have an apparatus for determining TBP up to 540. For the distilled fractions we can determine their density and molecular weight (or can be calculated).What about the vacuum residue? I saw the probability paper but i am not quite sure about its application. How vacuum residue can be seperated into pseudo components and how can be determined  molecular weight and density of these pseudo components?    

RE: End boiling point of crude oil

biofan:

Have you looked at the vacuum distillation method in ASTM test method D5236-03(2007)? You can read about it at:

http://www.astm.org/Standards/D5236.htm

It is said to be capable of handling streams with an  end point of up to 564 °C.

Milton Beychok
(Visit me at www.air-dispersion.com)
.

 

RE: End boiling point of crude oil


For building the TBP line and the equilibrium flash vaporization curve (EFV), you may follow the procedure described in D. S. J. Jones' Elements of Petroleum Processing, chapter 6, fig. 6.5,  Wiley.  

RE: End boiling point of crude oil

(OP)
Thank you for your answers but can you send me this chapter 6 from D. S. J. Jones' Elements of Petroleum Processing?

RE: End boiling point of crude oil


Sorry, I have no possibility to send. Hopefully, any technical library would have the book.

RE: End boiling point of crude oil

(OP)
Thank you anyway

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