Refining of crude oil, Biology

The crude oil obtained from earth's crust is refined by following steps.

Step 1: separation of water

Cottrell's process is used for separation of water. Crude oil is an emulsion of oil and salt water. The crude is allowed to flow between two highly charged electrodes. The colloidal water droplets combine to form bigger drops and separates out from the oil.

Step II:    removal of sulphur compounds

Sulphur compounds can be removed by treating it  with copper oxide. Sulphur compounds react to form copper sulphide (solid) which can be removed by filtration.

Step III:   fractional distillation

The crude oil after the removal of water and sulphur compounds is heated to about 4000C. except the residue i.e. asphalt and coke, all the constituents volatilizes. These vapours are passed in a fractionating column. Fractionating columns is a tall cylindrical tower containing a number of horizontal stainless steel trays. The tray is provided with a small chimney, covered with lose cap.

As the vapours rises up in tower, they becomes cool and condense. The compounds having higher boiling points are condensed at the lower part of column. Whereas the compounds having lower boiling fractions will condense at top of the tower.



Posted Date: 7/12/2012 5:19:24 AM | Location : United States

Related Discussions:- Refining of crude oil, Assignment Help, Ask Question on Refining of crude oil, Get Answer, Expert's Help, Refining of crude oil Discussions

Write discussion on Refining of crude oil
Your posts are moderated
Related Questions
#q1. If offspring exhibit a 3:1 phenotypic ratio, what are the genotypes of a parent?uestion..

assignment on prolactin

Explain acid and bases? Acids and Bases :  Some aqueous solutions, however, such as HCl, form an excess of hydrogen ions [ H + ] and are called acids. Others, such as NaOH,

What are the infructescences, pseudofruits and parthenocarpic fruits? The Infructescences are aggregated fruits formed from inflorescences, aggregated flowers. Grape clusters a

Q. What are the kinds of fecundation that occur in arthropods? What is the predominant kind? In arthropods there are species having exterior fecundation and other species havin

Sphaerosome Also known as Plant lysosome , because they contain hydrolytic enzymes. Hanstei n first observed them and called microsomes . Discovered by Dangeared

Q. What are the vessels that carry blood to the kidneys? Is this blood venous or arterial? The renal arteries are ramifications of the aorta and so the blood filtered by the ki

what are the disadvantages of protozoa

List a few important uses of food hydrocolloids. A few important uses of food hydrocolloids are: to increase viscosity and to stabilize food products. Its other uses  include u