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Method for increasing regeneration speed of desulfurization liquid in regeneration tower

A technology of regeneration speed and desulfurization liquid, applied in separation methods, chemical instruments and methods, gas treatment, etc., can solve the problems of difficult heating of desulfurization liquid, difficulty in regeneration, affecting the progress of system debugging, etc. Consumption, the effect of reducing steam consumption

Pending Publication Date: 2021-06-04
BAOTOU IRON & STEEL GRP
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Problems solved by technology

During the experiment, since the height of the desulfurization liquid regeneration tower is 38 meters, the diameter of the bottom is 3.6 meters, and the top is 4.5 meters, it is difficult to heat the desulfurization liquid. The heating temperature is 120 ℃, and the heating time is 12-16 hours when starting. The regeneration is difficult, which seriously affects the whole system The debugging progress of

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  • Method for increasing regeneration speed of desulfurization liquid in regeneration tower

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Embodiment Construction

[0015] A method for increasing the regeneration speed of the desulfurization liquid in the regeneration tower, such as figure 1 As shown, two vacuum pumps are installed in the rear system of the regeneration tower, one for operation and one for standby. When the system is running, one vacuum pump is started to reduce the surface pressure of the desulfurization liquid in the regeneration tower from 50KPa to -60KPa, and the boiling point of the desulfurization liquid is about 120°C The temperature is lowered to about 95°C, the amount of steam is reduced from 12t / h to 8t / h, and the heating time at start-up is reduced from 12-16 hours to less than 8 hours, thus solving the problem of difficult stripping of desulfurization liquid in desulfurization towers in the past.

[0016] In the present invention, two vacuum pumps are added to the system at the rear of the regeneration tower, one for operation and the other for standby. When the system is running, one vacuum pump is started to ...

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Abstract

The invention discloses a method for increasing the regeneration speed of a desulfurization liquid in a regeneration tower, which is characterized in that two vacuum pumps are additionally arranged on a rear system of the regeneration tower, one being used for standby while the other being operated; one vacuum pump is started when the system is operated, and the surface air pressure of the desulfurization liquid in the regeneration tower is reduced from 50KPa to -60KPa so as to reduce the boiling point of the desulfurization liquid. The invention aims to provide a method for improving the regeneration speed of the desulfurization liquid in the regeneration tower. The method is simple, convenient to use, low in investment and high in efficiency.

Description

technical field [0001] The invention relates to a method for increasing the regeneration speed of desulfurization liquid in a regeneration tower. Background technique [0002] The flue gas exhausted from the pulverized coal boiler of Baotou Steel Power Plant is currently undergoing a flue gas wet treatment experiment. The desulfurization liquid is used to absorb sulfur dioxide in the flue gas, and then enters the regeneration tower to steam strip the sulfur dioxide, and then the desulfurization liquid enters the desulfurization tower Adsorb sulfur dioxide. During the experiment, since the height of the desulfurization liquid regeneration tower is 38 meters, the diameter of the bottom is 3.6 meters, and the top is 4.5 meters, it is difficult to heat the desulfurization liquid. The heating temperature is 120 ℃, and the heating time is 12-16 hours when starting. The regeneration is difficult, which seriously affects the whole system debugging progress. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/14B01D3/10B01D3/38B01D3/42
CPCB01D53/1425B01D53/1481B01D3/10B01D3/38B01D3/42B01D2258/0283
Inventor 田顺生
Owner BAOTOU IRON & STEEL GRP
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