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Correlations for viscosity on fuel oil dilution

Correlations for viscosity on fuel oil dilution

(OP)
Hi, everybody,

My name is Renato. I'm a chemical engineer in Brazil.
I'm doing my post-graduation on petroleum refinnig. My project is based on correlations to predict the fuel oil viscosity when diluted with medium distillates.
I found many models based on Viscosity Blending Numbers, such as maxwell's and refutas's. I also found some based on dilution of heavy oils and bitumens, with many equations, such as Lederer.
But I've found little about fuel oil. The only specific article I found is the following:
http://www.scopus.com/scopus/record/display.url?view=basic&eid=2-s2.0-41149117613&amp;origin=resultslist&sort=r-f&src=s&st1=stratiev&st2=viscosity&amp;nlo=&amp;nlr=&amp;nls=&;sid=U3v23Q1dE7WWV20b7EuftaH%3a30&sot=b&sdt=b&sl=52&s=%28AUTHOR-NAME%28stratiev%29+AND+TITLE-ABS-KEY%28viscosity%29%29&relpos=2&amp;relpos=2
Can anyone suggest me something? Any correlation or any article about fuel oil dilution.

Renato

RE: Correlations for viscosity on fuel oil dilution

The various oil companies (Marine fuels divisions) offer fuel oil blending programs. These calculate the necessary volume or mass ratio in which to blend resid with cuter stocks to obtain any particular property and then also calculate the other properties. Most usually the target value is viscosity but today it could also be sulphur content.

Shell have a program here:
http://www.shell.com/home/content2/marine-en/products_and_services/marine_fuels/bunkercalc.html
Exxon Mobil Marine Fuels also has a program and DNV PS.

You will also find some nomographs and calculations in ASTM D341. (the source of the temperature density relationship commonly used).

I guess the calculation basis is the Wright equation for viscosity, most of the other properties are additive.

PS: Note most of these calculations are two component blends. In some operations, and especially with fuel sulphur having become critical, there are multi-stream blends which require ore complex calculations.

RE: Correlations for viscosity on fuel oil dilution

I think the best and complete way is to Download from EDonkey or EMule
"API Technical Data Book Petroleum refining " about 1300 pages  and you go to Chap ter 11 Viscosity
You can found all about Petroleum Products Physicals and Thermodynamicals Proprieties calculations
It is free on P2P
So long

RE: Correlations for viscosity on fuel oil dilution

E Donkey confirms what I would have expected (especially since the Swedes put a bunch of guys in jail) that you have to pay for this material:

Quote:

The eDonkey2000 Network is no longer available.

If you steal music or movies, you are breaking the law.

Courts around the world -- including the United States Supreme Court --
have ruled that businesses and individuals can be prosecuted for illegal
E Mule seems to be there but....

The source for API documents and standards is http://www.api.org/ or http://www.epcon.com/us/index.php?option=com_content&view=article&amp;id=85:oilindustry&catid=15:solutions-by-industry&Itemid=101 where you pay for what you need.

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