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Ahmedaoso
Participant

Join Date: Feb 2008
Posts: 1

Technoeconomy of CDU

02/13/2008 9:28 AM
hi Guys i awant any body to help me i am a new process engineer on a new Refinery and we do now technoecomonmic study of CDU with different crudes using crude assays
i face 3 problems the first one is that there was some assays put Ar%, Naph% by volume percent how i can convert it to Wt% in each cut?
secondly some contain Cetane Index and i use cetane number how i can do conversion?
thirdly How can i calculate RON and MON For any Cut?

Best Regards,
Ahmed
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Anonymous Poster
#1

Re: Technoeconomy of CDU

02/14/2008 12:29 AM

CDU

RON

MON

Surely you could spend a few seconds more and explain these!

Best Regards to you too.
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Paddler
Power-User

Join Date: May 2007
Location: Sweet home Alabama
Posts: 144
Good Answers: 7
#2

Re: Technoeconomy of CDU

02/14/2008 1:22 PM

Without being rude, most process engineers in refineries are chemical engineers. Where are you from?

These are second and third year engineering questions you are asking.

I think RON refers to "Regulated Organic NESHAPS" and MON refers to "Miscellaneous Organic NESHAPS" for USA regulatory reasons. When the feds realized the NESHAPS list did not cover all organic compounds they created the miscellaneous category. . Probably Title V air permitting requirements.

CDU may be crude distillation unit. Ar is aromatics (not argon) and Naph is the naphtha distribution.

The volume % if from a head space GC is the same as molar % and is first year chemical engineering basics to convert to wt. %.

Are you asking for a review of Chem Eng 101?
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Anonymous Poster
#3
In reply to #2

Re: Technoeconomy of CDU

02/15/2008 9:57 AM

i think that u r the one who must be on second or third year as u dont know that RON is research octane number and MON Motro octan number
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Paddler
Power-User

Join Date: May 2007
Location: Sweet home Alabama
Posts: 144
Good Answers: 7
#4
In reply to #3

Re: Technoeconomy of CDU

02/15/2008 1:40 PM

Your right I misunderstood what you were thinking.

GOOD LUCK GETTING HELP!
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