Oil distillation system

Abstract

The invention relates to an oil distillation system. The device comprises a reaction system which comprises a dehydration tower, a distillation tower, an adsorption tower, a catalytic tower, a fractionating tower, a cooling tower, a receiving tank, a combustor and a water supply system, a control valve I, an oil outlet pump and a control valve II are connected in series on the pipeline between thedistillation tower and the dehydration tower; wherein the cooling towers comprise a cooling tower I, a cooling tower II and a cooling tower III which are respectively connected with a top oil outlet,a side oil outlet and a bottom oil outlet of the fractionating tower, and the water supply system is respectively connected with water inlets and water outlets of the cooling towers and supplies coldto the cooling towers; the receiving tank comprises a top line receiving tank, a side line receiving tank and a bottom line receiving tank which are connected with the cooling tower I, the cooling tower II and the cooling tower III respectively and used for storing oil. An atmospheric and vacuum distillation technology is adopted, the waste oil can be separated into three kinds of oil with different components, and the process equipment is simple in structure, convenient to operate, high in production efficiency, remarkable in economic benefit and most suitable for small and medium-sized chemical enterprises.

Description

technical field [0001] The invention relates to the field of waste oil treatment, in particular to an oil distillation system. Background technique [0002] Distillation is a thermodynamic separation process. It utilizes the different boiling points of the components in the mixed liquid or liquid-solid system to evaporate the low-boiling components and then condense them to separate the entire components. There are two types of evaporation and condensation. A union of unit operations. Compared with other separation methods, such as extraction, adsorption, etc., its advantage is that it does not need to use other solvents other than the system components, so as to ensure that no new impurities will be introduced. [0003] simple distillation, as in the manufacture of distilled water to remove dissolved solid impurities, or, as in the manufacture of distilled spirits, to concentrate the alcohol and remove some of the water; rectification, also called fractional distillation, ...

AI Technical Summary

Problems solved by technology

[0004] Most of the existing waste oil treatment systems use the distillation-hydrogenation process to recycle waste oil. This method mainly includes short-path distillation ax for vacuum distillation, hydrofining, distillation tower for re-distillation, and finally lubricating oil. The significant advantage of this process is that there is no waste disposal problem, and it also has the advantages of high recovery rate and good product quality, but its equipment investment is high and a suitable source of hydrogen is required

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