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Method and device for preparing diluted ammonia water from ammonia-containing shift condensate wastewater

A conversion device and dilute ammonia water technology, applied in separation methods, water/sewage treatment, ammonia preparation/separation, etc., can solve problems such as large land occupation, reduce equipment investment and land occupation, reduce burden, and lower temperature Effect

Active Publication Date: 2015-03-25
SHANGHAI INT ENG CONSULTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] (3) The three-stage condensation process includes three heat exchangers and three liquid separation tanks, covering a large area

Method used

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  • Method and device for preparing diluted ammonia water from ammonia-containing shift condensate wastewater
  • Method and device for preparing diluted ammonia water from ammonia-containing shift condensate wastewater
  • Method and device for preparing diluted ammonia water from ammonia-containing shift condensate wastewater

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Embodiment Construction

[0031] see Figure 4 , the device for producing dilute ammonia water from ammonia-containing converted condensate wastewater shown in the figure includes a stripper T1 and an ammonia water absorption tower T2. The interior of the ammonia water absorption tower T2 is composed of three sections connected in sequence, and the first section is located in the ammonia water absorption At the bottom of the tower T2, the second section is located in the middle of the ammonia water absorption tower T2, and the third section is located at the upper part of the ammonia water absorption tower T2.

[0032] The other end of the ammonia-containing shift condensate delivery pipeline 2 connected to the ammonia-containing shift condensate outlet 1 of the conversion device is connected to the ammonia-containing shift condensate inlet 3 on the upper part of the stripper T1, and connected to the ammonia-containing shift condensate outlet of the conversion device The other end of the ammonia-contai...

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Abstract

The invention discloses a method for preparing diluted ammonia water from ammonia-containing shift condensate wastewater. Based on single-tower pressurized stripping with side-draw, by adding an ammonia water absorption tower, the qualified diluted ammonia water is prepared in a cooling absorption manner. The device investment can be saved and a corrodible operating temperature region can also be effectively avoided. The invention also discloses a device for preparing diluted ammonia water from ammonia-containing shift condensate wastewater.

Description

technical field [0001] The invention relates to the technical field of treatment of ammonia-containing converted condensate wastewater, in particular to a method and device for preparing dilute ammonia water from ammonia-containing converted condensate wastewater. The problem that the transformed condensate wastewater cannot be treated or the quality of the treated ammonia water cannot meet the relevant standards. Background technique [0002] In view of the fact that our country is a country with more coal and less gas, at present, most chemical companies use coal as raw material. In view of the fact that the conversion section is an essential section for every coal chemical plant. Because the gas after coal gasification contains a small amount of ammonia, a large amount of ammonia-containing wastewater is produced after the high-temperature gas in the transformation section is cooled by heat exchange. In particular, the ammonia content in the shift condensate wastewater ...

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Application Information

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IPC IPC(8): C02F1/02B01D53/78B01D53/52B01D53/58C01C1/02
CPCB01D53/52B01D53/58B01D53/78C01C1/022C01C1/12C02F1/04C02F1/048C02F2101/16
Inventor 杨震东章华勇宗丽
Owner SHANGHAI INT ENG CONSULTING