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Process and device for condensing and cooling crude benzene vapor

A steam condensation and cooling process technology, applied in the field of coal chemical industry, can solve the problems of increasing energy consumption and operating costs, and the increase of low-temperature water consumption, so as to save low-temperature water consumption, reduce equipment investment and land occupation, reduce energy consumption and operation cost effect

Inactive Publication Date: 2010-08-11
ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC +1
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  • Claims
  • Application Information

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Problems solved by technology

Therefore, if the crude benzene is condensed to the required temperature, it will lead to an increase in the amount of cryogenic water required, which in turn increases energy consumption and operating costs

Method used

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  • Process and device for condensing and cooling crude benzene vapor
  • Process and device for condensing and cooling crude benzene vapor
  • Process and device for condensing and cooling crude benzene vapor

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Embodiment Construction

[0014] See figure 2 , crude benzene steam condensation cooling process, the process first uses circulating water as heat exchange medium to exchange heat with the crude benzene steam coming out of the debenzene tower 4, and the crude benzene steam cooled by circulating water is then cooled by low-temperature water.

[0015] The circulating water cooling and cooling water cooling processes are carried out in an equipment condensing cooler.

[0016] Crude benzene steam condensation cooling device 9, the device is a tank structure, the tank body part is divided into two connected areas, the above-mentioned area is a circulating water cooling area, and the side is provided with a circulating water inlet 5 and a circulating water outlet 6; the lower area is In the low-temperature water cooling area, a low-temperature water inlet 7 and a low-temperature water outlet 8 are arranged on the side.

[0017] The inlet temperature of circulating water in the upper area of ​​the device is...

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Abstract

The invention relates to the technical field of coal chemical industry and discloses a process and a device for condensing and cooling crude benzene vapor. The process comprises the following steps of: exchanging heat with crude benzene vapor coming from a benzole scrubber by using circulating water as a heat exchange medium and cooling the crude benzene vapor cooled by the circulating water by using low-temperature water, wherein the processes of circulating water cooling and cooling water cooling are carried out in the same condensation cooler. The device is of a tank body structure, and the interior of the tank body is divided into two communicated areas, wherein the upper area is a circulating water cooling area, and the side part of the area is provided with a circulating water inlet and a circulating water outlet; and the lower area is a low-temperature water cooling area, and the side part of the area is provided with a low-temperature water inlet and a low-temperature water outlet. The process is used for replacing a rich oil heat exchange process of an original process by using the circulating water, thereby lightening the load of an oil-gas heat exchanger, reducing the temperature of the crude benzene vapor, and saving the dosage of low-temperature water and the operating cost.

Description

technical field [0001] The invention relates to the technical field of coal chemical industry, and relates to a process and a device for condensing and cooling crude benzene vapor. Background technique [0002] Crude benzene vapor condensation cooling process in the prior art, see figure 1 . The crude benzene vapor is discharged from the top of the benzene removal tower 1, first enters the oil-steam heat exchanger 2, and then enters the crude benzene condensing cooler 3. The rich oil and low-temperature water from the benzene washing section are used for condensing and cooling respectively. In this method, oil-rich steam and crude benzene steam are first exchanged for oil-vapor heat. Since the temperature of rich oil is relatively high, the temperature difference in which the crude benzene steam is cooled is small. Therefore, if the crude benzene is condensed to the required temperature, it will lead to an increase in the amount of low-temperature water required, thereby ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D5/00C07C15/04C07C7/09
Inventor 王嵩林徐作锋郑秀珍郝鹏
Owner ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC
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