Coalescing crude benzene oil-water separator and operating method thereof

Abstract

The invention relates to a coalescing crude benzene oil-water separator and an operating method thereof; the coalescing crude benzene oil-water separator comprises a barrel, a coalescing device mounted in the barrel, a circular liquid distributor pipe and a drainage guide pipe; the middle of the barrel is provided with a material inlet that is connected with the circular liquid distributor pipe; the coalescing device is arranged below the circular liquid distributor pipe; the upper portion of the barrel is provided with a crude benzene outlet and a separated water outlet, the separated water outlet is connected to the upper end of the drainage guide pipe, and the lower end of the drainage guide pipe penetrates the coalescing device and extends into the bottom space of the barre. The coalescing crude benzene oil-water separator and the operating method thereof have the advantages that droplets in crude benzene from a benzene removal tower can be adsorbed to the surface of the coalescing device, large drops formed are separated from the coalescing device and are isolated from the crude benzene by gravity, the water content in crude benzene can be greatly decreased, heat loss of the benzene removal tower is reduced, product quality and production efficiency are improved, and labor intensity is decreased.

Description

technical field [0001] The invention relates to the technical field of oil-water separation, in particular to a crude benzene oil-water separator in a crude benzene distillation device in the coking industry. Background technique [0002] The crude benzene extracted from the top of the debenzene tower still contains a small amount of water after being condensed by the crude benzene distillation device. After the oil-water separation is carried out through the crude benzene control separator and the crude benzene oil-water separator, part of it is refluxed to the debenzene tower, and part of it is Enter the intermediate tank of crude benzene as a product. [0003] Both the traditional control separator and the oil-water separator adopt the principle of static separation, which not only has a large number of equipment, but also occupies a large area, and the separation effect is poor; after the excess water returns to the debenzene tower, it will also increase the debenzene T...

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Problems solved by technology

[0003] Both the traditional control separator and the oil-water separator adopt the principle of static separation, which not only has a large number of equipment, but also occupies a large area, and the separation effect is poor; after the excess water returns to the debenzene tower, it will also increase the debenzene The thermal load of the tower increases the amount of steam at the bottom of the tower, which further increases the water content of crude benzene at the top of the tower, which greatly increases the production cost

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