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Distillate tower top reflux system

A technology of fractionation tower and fractionation tower, which is applied in the field of the top reflux system of fractionation tower, can solve the problems of high equipment maintenance and replacement cost, short equipment life cycle and high production cost, so as to reduce production cost, improve production efficiency, reduce The effect of corrosion

Inactive Publication Date: 2014-10-29
SHANDONG BAOSHUN CHEM TECH
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  • Description
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  • Application Information

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Problems solved by technology

Therefore, in the prior art process, the equipment is seriously corroded, the service life of the equipment is short, and the maintenance and replacement costs of the equipment are high, resulting in high overall production costs.

Method used

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  • Distillate tower top reflux system

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Embodiment Construction

[0015] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The schematic embodiments and descriptions of the present invention are used to explain the technical solutions of the present invention, but are not intended to limit the present invention.

[0016] Depend on figure 1 It can be seen that the fraction column overhead reflux system of the present invention comprises an oil washing condenser 12, an oil washing cooler 13, a two-mix condenser 14, a three-mix condenser 15, an oil washing reflux tank 16, a reflux pump 17 and a non-condensable gas cooling Device 18.

[0017] After the three-mixture oil gas escaped from the top of the fractionation column 11 is partially condensed by the oil washing condenser 12 , the liquid phase enters the oil washing cooler 13 , and the gas phase enters the two-mix condenser 14 .

[0018] The liquid phase in the two-mix condenser 14 enter...

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Abstract

The invention discloses a distillate tower top reflux system including a wash oil condenser, a wash oil cooler, a two-mixed condenser, a three-mixed condenser, a wash oil reflux tank, a reflux pump and a non-condensable gas cooler, three-mixed oil gas escaped by a distillate tower top is partially condensed by the wash oil condenser, a liquid phase enters into the wash oil cooler, a gas phase enters into the two-mixed condenser, a liquid phase in the two-mixed condenser enters into the three-mixed condenser, a gas phase is cooled by the non-condensable gas cooler, and then enters into a vacuum system, wash oil cooled by the wash oil cooler enters into the wash oil reflux tank, the wash oil flowed out of the wash oil reflux tank is partly sent back to a distillate tower by the reflux pump, the rest of the wash oil flows into the three-mixed condenser, and a liquid in the three-mixed condenser is sent to a non-washing three-mixed tank. The technical scheme of the distillate tower top reflux system has the advantages of simple process and easy industrial production, the distillate tower top uses the wash oil in a three-mixed oil distillate as a reflux liquid, the corrosion of the distillation tower and inner parts can be reduced, and the equipment using period is prolonged.

Description

technical field [0001] The invention relates to the field of coal tar processing, and discloses a distillation tower top reflux system. Background technique [0002] At present, in the coal tar processing industry, the known overhead reflux liquid of the fractionation column uses phenol oil in the trimixture oil. Due to the strong corrosiveness of the phenolic oil, the corrosion of the fractionation column wall, especially the column internals, is serious. Therefore, in the prior art process, equipment corrosion is serious, equipment service life is short, and equipment maintenance and replacement costs are high, resulting in high overall production costs. [0003] Therefore, it is of great significance to invent a process that can reduce equipment corrosion and improve production efficiency. Contents of the invention [0004] The present invention provides a distillation tower overhead reflux system with less equipment corrosion, long service life and low production cost...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G7/10
Inventor 任忠海吴渊杨云峰
Owner SHANDONG BAOSHUN CHEM TECH
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