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A device and process for recycling crude ammonia water produced by acidic water treatment devices in petrochemical refineries

An ammonia water and acid technology, applied in gas treatment, chemical instruments and methods, ammonia compounds, etc., can solve problems such as waste of resources and pollute the environment, and achieve the effect of reducing raw material costs, achieving win-win benefits, and saving energy costs.

Active Publication Date: 2021-01-05
SHANDONG HI TECH CHEM GROUP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ammonia burning process is to burn a large amount of ammonia gas, which not only causes a waste of resources, but also produces a large amount of NO X waste gas, pollute the environment

Method used

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  • A device and process for recycling crude ammonia water produced by acidic water treatment devices in petrochemical refineries

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0109] see figure 1 , figure 1 It is a schematic flow chart of the main process of the recovery and utilization device of the crude ammonia water produced by the acid water treatment device of the petrochemical refinery provided by the present invention.

[0110] The recovery and utilization device of crude ammonia water of the present invention comprises an acidic water stripping tower, a reflux mixing device, a first crude ammonia water settling tank, a second crude ammonia water settling tank, a primary filter, a crude ammonia water refining tank, a refining filter and coal-water slurry boiler.

[0111] Wherein, the crude ammonia outlet of the sour water stripper is connected with the inlet of the reflux mixing device, and the crude ammonia outlet of the reflux mixing device is connected with the first crude ammonia settling tank and the second crude ammonia settling tank respectively, and the first crude ammonia settling The tank and the second thick ammonia water settli...

Embodiment 2

[0121] see figure 1 , figure 1 It is a schematic flow chart of the main process of the recovery and utilization device of the crude ammonia water produced by the acid water treatment device of the petrochemical refinery provided by the present invention.

[0122] The recovery and utilization device of crude ammonia water of the present invention comprises an acidic water stripping tower, a reflux mixing device, a first crude ammonia water settling tank, a second crude ammonia water settling tank, a primary filter, a crude ammonia water refining tank, a refining filter and coal-water slurry boiler.

[0123] Wherein, the crude ammonia outlet of the sour water stripper is connected with the inlet of the reflux mixing device, and the crude ammonia outlet of the reflux mixing device is connected with the first crude ammonia settling tank and the second crude ammonia settling tank respectively, and the first crude ammonia settling The tank and the second thick ammonia water settli...

Embodiment 3

[0133] see figure 1 , figure 1 It is a schematic flow chart of the main process of the recovery and utilization device of the crude ammonia water produced by the acid water treatment device of the petrochemical refinery provided by the present invention.

[0134] The recovery and utilization device of crude ammonia water of the present invention comprises an acidic water stripping tower, a reflux mixing device, a first crude ammonia water settling tank, a second crude ammonia water settling tank, a primary filter, a crude ammonia water refining tank, a refining filter and coal-water slurry boiler.

[0135] Wherein, the crude ammonia outlet of the sour water stripper is connected with the inlet of the reflux mixing device, and the crude ammonia outlet of the reflux mixing device is connected with the first crude ammonia settling tank and the second crude ammonia settling tank respectively, and the first crude ammonia settling The tank and the second thick ammonia water settli...

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Abstract

The invention provides a recycling device for ammonia liquor. The recycling device comprises an acidic water steam-stripping device, an ammonia liquor sedimentation device connected with an ammonia liquor outlet of the acidic water steam-stripping device, a primary filter connected with an outlet of the ammonia liquor sedimentation device, an ammonia liquor refining tank connected with an outlet of the primary filter, a fine filter connected with an outlet of the ammonia liquor refining tank, and an SNCR smoke denitration system connected with an outlet of the fine filter. According to the recycling device, ammonia liquor steamed out by the acidic water steam-stripping device is used for a boiler system SNCR smoke denitration technology, thus the treatment problem of the ammonia liquor issolved, environmental pollution and the outsourcing treatment cost are reduced, meanwhile, the raw material cost of a denitration agent ammonium hydroxide in the boiler SNCR technology is also lowered, a large amount of required ammonium hydroxide is provided for an original SNCR smoke denitration technology, and a sustainable development concept that environmental protection and benefit are win-win is achieved.

Description

technical field [0001] The invention belongs to the technical field of recycling crude ammonia water produced by an acidic water treatment device, and relates to a recycling device and process for crude ammonia water, in particular to a recycling device and process for crude ammonia water produced by an acidic water treatment device in a petrochemical refinery. Background technique [0002] Acidic water in petrochemical refineries is one of the most common waste water in petrochemical refining enterprises. It is caused by the presence of sulfur compounds and nitrogen-containing compounds in petroleum and its products. In the process of hydrogenation, hydrofinishing, hydrocracking, etc., these compounds will generate sulfur-containing compounds and nitrogen-containing compounds through high-temperature cracking, catalytic cracking, catalytic hydrogenation, etc., and enter the product stream, and these product streams are condensed Dehydration or washing treatment will produce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/86B01D53/56C01C1/02
CPCB01D53/8625B01D2251/2062B01D2258/0283C01C1/024
Inventor 孟兵兵曹建清钱行昆薛文杰
Owner SHANDONG HI TECH CHEM GROUP