Solvent de-asphalter


Solvent de-asphalter

A solvent de-asphalter is a unit in a crude oil refinery that separates the asphalt from the processing crude oil using the fact that light hydrocarbons will solve the remainder of the crude oil, but not the asphaltens in the crude. The output from the de-asphalter unit is de-asphalted oil, DAO and asphalt. If the solvent is butane the unit will be referred to as a butane de-asphalter, BDA and if the solvent is propane, it will be called a propane de-asphalter, PDA unit.

References

* [http://www.epa.gov/epaoswer/hazwaste/id/studies/study_p3.pdf Study of selected petroleum refining residuals by US EPA]
* [http://www3.interscience.wiley.com/cgi-bin/bookhome/114124025/ Lubricants and Lubrication (Second Edition)]

External links

* [http://www.epa.gov/epaoswer/hazwaste/id/studies/study_p3.pdf Study of selected petroleum refining residuals by US EPA]
* [http://www.fwc.com/publications/tech_papers/oil_gas/Uop_fw~2.pdf Solvent de-asphalting]
* [http://www.jechura.com/ChEN409/06%20SDA.pdf Solvent de-asphalting of vacuum residuum]


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Look at other dictionaries:

  • De-asphalter — A de asphalter is a unit in a crude oil refinery or bitumen upgrader that separates asphalt from crude oil or bitumen. The de asphalter unit is usually placed after the vacuum distillation tower. It is usually a solvent de asphalter unit, SDA.… …   Wikipedia

  • De-asphalted oil — De asphalted oil, DAO is a crude oil refinery process stream. It is the main stream out of a de asphalter unit in a crude oil refinery. The other stream out from the de asphalter is the asphalt. The de asphalter unit is usually a solvent de… …   Wikipedia

  • De-asphalting unit — A de asphalting unit separates the asphalt from the rest of the crude oil residue. The de asphalter unit is usually placed after the vacuum tower in a crude oil refinery. The process is often referred to as a solvent de asphalter, SDA. And the… …   Wikipedia