Extraction methods for oil

 


Carliss Howell: Extraction methods for oil

            Throughout the semester, I have learned a lot of information about energy regarding the different types of energy, the advantages and disadvantages, and different exploration methods. Today, I decided to look into extraction methods. The specific extraction method I decided to look into was the extraction of oil. 

            Oil extraction can be defined as a sort of chemistry. The oil can come from animal by-products, fleshy fruits (such as olives and palm), oilseeds (such as cotton seeds and sesame seeds), soybeans, and peanuts. There are three main general ways extraction of oil takes place either by rendering, mechanical pressing, and or extracting. Rendering is used for the animal-by products and oleaginous fruits, mechanical pressing is for the oil-bearing seeds and nuts, and extracting is for volatile solvents (liquids that easily vaporize into a gas) such as paint, cleaning fluid, etc. Rendering is when heaping fruits are exposed to the sun and the oil that seeps out is collected. It can also be done by extracting the oil from palm fruits by boiling them in water, and then skimming the oil from the surface. Mechanical pressing is done after the nuts and seeds are broken up by either grinding, flaking, or rolling them. In modern pressing (which is also relevant) the oil and nuts are cleaned; the shells or hulls are removed and the kernel or meats are ground to a coarse meal that is pressed with or without preliminary heating. Finally, after the rendering and pressing is done there is about 5 to 15 percent of oil leftover. These can be removed by extraction, with the use of volatile solvents which is then filtered, dissolving the rest of the oil. This solvent is able to recovered and then used over and over again.

Comments

  1. BobApril 5, 2021 at 6:16 AM

    Interesting range of methods. Probably my favorite olive oil results from one of these. Did your source mention fracking?
    bob

    ReplyDelete

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