Heating and vaporization of aqueous crude oil
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I have a gentle question: There is a problem like this: A certain aqueous crude oil has a initial boiling point of 65°C. What happens to this crude oil when it is heated and vaporized? Does the crude oil vaporize first, or do both the oil and water vaporize at the same time? If anyone knows, please explain it. Thank you, bonus points!
In the heating and vaporization process of water-containing crude oil, water vaporizes first, followed by the vaporization of the crude oil itself. This is because below the initial boiling point, the water content in crude oil is high, and the vaporization temperature of water is lower than that of crude oil; thus, at the beginning of heating, the water evaporates first, removing the moisture from the crude oil, before the vaporization process of the crude oil itself begins. So the answer is that crude oil does not vaporize first; rather, water vaporizes first. -
Of course, the components with a low initial boiling point vaporize first
Generally, crude oil has a lower specific gravity than water, so water settles at the bottom of the storage tank. If the heating coil is submerged in a water layer and steam is used as the heating source, the water vaporizes first. When heated with water, the light components contained in the crude oil have boiling points lower than that of water, and they vaporize first after heat exchange with the water.