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2. Oil purification - Wikipedia

   en.wikipedia.org/wiki/Oil_Purification

   Oil filtration systems generally use a multistage filtration with coarse and fine filters. [2] Centrifugation is separation of oil and water, or oil and solid particles by centrifugal forces. Vacuum treatment degasses and dehydrates industrial oil. This method is well suited for removing dispersed and dissolved water, as well as dissolved gases ...

3. List of purification methods in chemistry - Wikipedia

   en.wikipedia.org/wiki/List_of_purification...

   Water purification combines a number of methods to produce potable or drinking water. Downstream processing refers to purification of chemicals, pharmaceuticals and food ingredients produced by fermentation or synthesized by plant and animal tissues, for example antibiotics, citric acid, vitamin E, and insulin.

4. Petroleum refining processes - Wikipedia

   en.wikipedia.org/wiki/Petroleum_refining_processes

   Petroleum refinery in Anacortes, Washington, United States. Petroleum refining processes are the chemical engineering processes and other facilities used in petroleum refineries (also referred to as oil refineries) to transform crude oil into useful products such as liquefied petroleum gas (LPG), gasoline or petrol, kerosene, jet fuel, diesel oil and fuel oils.

5. Separation process - Wikipedia

   en.wikipedia.org/wiki/Separation_process

   Oil-water separation, gravimetrically separates suspended oil droplets from waste water in oil refineries, petrochemical and chemical plants, natural gas processing plants and similar industries; Precipitation; Recrystallization; Scrubbing, separation of particulates (solids) or gases from a gas stream using liquid.

6. Petroleum product - Wikipedia

   en.wikipedia.org/wiki/Petroleum_product

   Petroleum products are materials derived from crude oil as it is processed in oil refineries. Unlike petrochemicals, which are a collection of well-defined usually pure organic compounds, petroleum products are complex mixtures. [1] Most petroleum is converted into petroleum products, which include several classes of fuels. [2]

7. Biodiesel production - Wikipedia

   en.wikipedia.org/wiki/Biodiesel_production

   In the supercritical state, the oil and methanol are in a single phase, and reaction occurs spontaneously and rapidly. [8] The process can tolerate water in the feedstock, free fatty acids are converted to methyl esters instead of soap, so a wide variety of feedstocks can be used. Also the catalyst removal step is eliminated. [9]