CN109224777A - A kind of Ammonia recovery system - Google Patents
A kind of Ammonia recovery system Download PDFInfo
- Publication number
- CN109224777A CN109224777A CN201811226262.4A CN201811226262A CN109224777A CN 109224777 A CN109224777 A CN 109224777A CN 201811226262 A CN201811226262 A CN 201811226262A CN 109224777 A CN109224777 A CN 109224777A
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- Prior art keywords
- ammonia
- level
- tower
- absorption tower
- storage tank
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1406—Multiple stage absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention proposes a kind of Ammonia recovery systems, including deammoniation tower, purification pot, level-one ammonia absorption tower, second level ammonia absorption tower, three-level ammonia absorption tower and saturation ammonium hydroxide storage tank, the ammonia separated in ammonia-containing water is imported into purification pot by the deammoniation tower by gas-guide tube, saturation ammonia spirit is equipped in the purification pot, the ammonia of spilling imported into level-one ammonia absorption tower and adsorbs by the purification pot, level-one residual ammonia gas after absorption imported into second level ammonia absorption tower and adsorbs by the level-one ammonia absorption tower, second level residual ammonia gas after absorption is imported into three-level ammonia absorption tower and adsorbed by the second level ammonia absorption tower, ammonium hydroxide in the level-one ammonia absorption tower is stored in level-one storage tank, the level-one storage tank is connected by first-stage pump body with saturation ammonium hydroxide storage tank, by in multi-stage absorption recovery tower Waste liquid containing ammonia is repeatedly absorbed, Ammonia recovery efficiency is improved, reduces the production cost of enterprise to a certain extent.
Description
[technical field]
The present invention relates to the field of gas recycling, especially a kind of Ammonia recovery systems.
[background technique]
Ammonium hydroxide is the liquid of a kind of low boiling point, highly volatile, and highly volatile goes out chlorine in air, and ammonia have it is very strong
Irritation.Currently, in the industries such as chemical industry and non-ferrous metal metallurgy, desulfurization, dechlorination, denitration all can cause a large amount of ammonia to be arranged
It releases, if be not recycled effectively to it, it will environment is caused seriously to pollute.However, existing ammonium hydroxide returns
Receiving apparatus is only capable of the rate of recovery of ammonia to reach 50~60%, and the rate of recovery is extremely low, hardly consistent with national standard, therefore proposes one kind
Ammonia recovery system.
[summary of the invention]
The object of the invention is to solve the problems of the prior art, a kind of Ammonia recovery system is proposed, by multistage
Adsorption recovery tower repeatedly absorbs the waste liquid containing ammonia, improves Ammonia recovery efficiency, reduces in exhaust gas ammonia to week
The harm in collarette border is recycled the production cost for also reducing enterprise to a certain extent to ammonia.
To achieve the above object, the invention proposes a kind of Ammonia recovery systems, including deammoniation tower, purification pot, level-one ammonia
Aspiration tower, second level ammonia absorption tower, three-level ammonia absorption tower and saturation ammonium hydroxide storage tank, the deammoniation tower by inlet valve with
Ammonia-containing water inlet tube is connected, and steam(-)coil is equipped in the deammoniation tower, and the steam(-)coil is logical by air inlet pipe
Enter steam, the ammonia separated in ammonia-containing water is imported into purification pot by the deammoniation tower by gas-guide tube, in the purification pot
Equipped with saturation ammonia spirit, the ammonia of spilling imported into level-one ammonia absorption tower and adsorbs by the purification pot, and described one
Level-one residual ammonia gas after absorption is imported into second level ammonia absorption tower by grade ammonia absorption tower to be adsorbed, the second level ammonia
Absorption tower includes at least two adsorption towers, and the second level residual ammonia gas after absorption is imported into tertiary amine by the second level ammonia absorption tower
Aspiration tower is adsorbed, and the ammonium hydroxide in the level-one ammonia absorption tower is stored in level-one storage tank, the level-one storage tank
It is connected by first-stage pump body with saturation ammonium hydroxide storage tank.
Preferably, the second level ammonia absorption tower includes the first adsorption tower and the second adsorption tower, first adsorption tower
It is arranged in parallel with the second adsorption tower, the level-one residual ammonia after absorption is directed respectively into first by the level-one ammonia absorption tower to be inhaled
In attached tower and the second adsorption tower, second level residual ammonia gas after absorption is imported into three respectively by first adsorption tower and the second adsorption tower
Grade ammonia absorption tower is adsorbed, and the ammonium hydroxide in first adsorption tower and the second adsorption tower is stored in secondary storage tank, institute
The ammonium hydroxide in three-level ammonia absorption tower is stated to be stored in tertiary storage tank.
Preferably, the secondary storage tank is connected by second-stage pump body with level-one storage tank, the tertiary storage tank is logical
The three-level pump housing is crossed to be connected with secondary storage tank.
Preferably, being equipped with cooling in the level-one ammonia absorption tower, second level ammonia absorption tower, three-level ammonia absorption tower
Liquid coil pipe, the coolant liquid coil pipe are correspondingly connected with coolant liquid circulation line respectively, are concatenated on the coolant liquid circulation line
There are coolant recirculation pump and coolant liquid storage tank.
Preferably, being connected with suck-back device between the purification pot, level-one ammonia absorption tower, prevent from being dissolved in ammonia
Suck-back reaction occurs during forming ammonium hydroxide for water.
Beneficial effects of the present invention: the present invention passes through deammoniation tower, purification pot, level-one ammonia absorption tower, secondary amine aspiration
The cooperation of the cooperation of tower, three-level ammonia absorption tower and saturation ammonium hydroxide storage tank etc. etc., in multi-stage absorption recovery tower to containing ammonia
Waste liquid is repeatedly absorbed, and Ammonia recovery efficiency is improved, and reduces harm of the ammonia to ambient enviroment in exhaust gas, to ammonia into
Row recycles the production cost for also reducing enterprise to a certain extent.
Feature and advantage of the invention will be described in detail by embodiment combination attached drawing.
[Detailed description of the invention]
Fig. 1 is a kind of flow diagram of Ammonia recovery system of the present invention.
[specific embodiment]
A kind of Ammonia recovery system of the invention refering to fig. 1, including deammoniation tower 1, purification pot 2, level-one ammonia absorption tower 3, two
Grade ammonia absorption tower 4, three-level ammonia absorption tower 5 and saturation ammonium hydroxide storage tank 6, the deammoniation tower 1 is by inlet valve 11 and contains ammonia
Waste water inlet tube is connected, and steam(-)coil 13 is equipped in the deammoniation tower 1, and the steam(-)coil 13 passes through air inlet pipe 12
It is passed through steam, the ammonia separated in ammonia-containing water is imported into purification pot 2 by the deammoniation tower 1 by gas-guide tube, the purification
Saturation ammonia spirit is equipped in tank 2, the ammonia of spilling is imported into level-one ammonia absorption tower 3 by the purification pot 2 to be adsorbed,
Level-one residual ammonia gas after absorption imported into second level ammonia absorption tower 4 and adsorbs by the level-one ammonia absorption tower 3, described
Second level ammonia absorption tower 4 includes at least two adsorption towers, and the second level ammonia absorption tower 4 is by the second level residual ammonia conductance after absorption
Entering to three-level ammonia absorption tower 5 and is adsorbed, the ammonium hydroxide in the level-one ammonia absorption tower 3 is stored in level-one storage tank 30,
The level-one storage tank 30 is connected by first-stage pump body 60 with saturation ammonium hydroxide storage tank 6.The second level ammonia absorption tower 4 includes the
One adsorption tower 41 and the second adsorption tower 42, first adsorption tower 41 and the second adsorption tower 42 are arranged in parallel, the level-one ammonia
Level-one residual ammonia after absorption is directed respectively into the first adsorption tower 41 and the second adsorption tower 42 by absorption tower 3, and described first
Second level residual ammonia gas after absorption is imported into three-level ammonia absorption tower 5 respectively and adsorbed by adsorption tower 41 and the second adsorption tower 42,
Ammonium hydroxide in first adsorption tower 41 and the second adsorption tower 42 is stored in secondary storage tank 40, the three-level ammonia absorption tower
Ammonium hydroxide in 5 is stored in tertiary storage tank 50.The secondary storage tank 40 passes through second-stage pump body 40 and 30 phase of level-one storage tank
Even, the tertiary storage tank 50 is connected by the three-level pump housing 40 with secondary storage tank 40.The level-one ammonia absorption tower 3, second level
Coolant liquid coil pipe is equipped in ammonia absorption tower 4, three-level ammonia absorption tower 5, the coolant liquid coil pipe is recycled with coolant liquid respectively
Pipeline is correspondingly connected with, and is serially connected with coolant recirculation pump and coolant liquid storage tank on the coolant liquid circulation line.The purification
It is connected with suck-back device between tank 2, level-one ammonia absorption tower 3, prevents from occurring during ammonia is dissolved in water formation ammonium hydroxide
Suck-back reaction.
The course of work of the present invention:
A kind of working principle of Ammonia recovery system of the present invention are as follows: it is passed through vapor in steam(-)coil 13, it can be right
Ammonia spirit in deammoniation tower 1 is heated, and so that the ammonium hydroxide in ammonia spirit is formed ammonia and is separated with solution, spilling is discharged to net
Change in tank 2, due to being equipped with saturation ammonia spirit in purification pot 2, and the solubility of ammonium hydroxide in water is limited, continues to be passed through into water
Ammonia, when solubility reaches critical, ammonia can overflow, and can filter out other gaseous impurities other than ammonia in this way, spilling
Ammonia is passed into level-one ammonia absorption tower 3 by pipeline and carries out first order absorption, and unabsorbed level-one residual ammonia is led respectively
Enter to the first adsorption tower 41 and the second adsorption tower 42 and carry out second level absorption, unabsorbed second level residual ammonia gas imported into tertiary amine
Aspiration tower 5 is adsorbed, and can be guaranteed that the tail gas of discharge reaches national emission standard, will finally be met national emissions standard
Tail gas discharge, wherein setting coolant liquid coil pipe is conducive to dissolve in ammonium hydroxide when the ammonia in ammonia-contaminated gas is contacted with ammonium hydroxide in absorption tower
In, when the ammonia concn in level-one storage tank 30 reaches saturation, ammonium hydroxide therein is deposited by first-stage pump body 60 and saturation ammonium hydroxide
Storage tank 6, meanwhile, the ammonium hydroxide in secondary storage tank 40 is supplemented into level-one storage tank 30, tertiary storage tank 50 by second-stage pump body
Interior ammonium hydroxide is supplemented into secondary storage tank 40 by the three-level pump housing, supplements fresh tap water in tertiary storage tank 50.
Above-described embodiment is the description of the invention, is not limitation of the invention, after any pair of simple transformation of the present invention
Scheme all belong to the scope of protection of the present invention.
Claims (5)
1. a kind of Ammonia recovery system, it is characterised in that: including deammoniation tower (1), purification pot (2), level-one ammonia absorption tower (3),
Second level ammonia absorption tower (4), three-level ammonia absorption tower (5) and saturation ammonium hydroxide storage tank (6), the deammoniation tower (1) pass through water inlet
Valve (11) is connected with ammonia-containing water inlet tube, is equipped with steam(-)coil (13) in the deammoniation tower (1), the steam heating dish
Pipe (13) is passed through steam by air inlet pipe (12), and the deammoniation tower (1) is led the ammonia separated in ammonia-containing water by gas-guide tube
Enter in purification pot (2), saturation ammonia spirit is equipped in the purification pot (2), the purification pot (2) imports the ammonia of spilling
It is adsorbed in level-one ammonia absorption tower (3), the level-one ammonia absorption tower (3) enters the level-one residual ammonia conductance after absorption
Adsorbed in second level ammonia absorption tower (4), the second level ammonia absorption tower (4) include at least two adsorption towers, described two
Second level residual ammonia gas after absorption is imported into three-level ammonia absorption tower (5) and adsorbed by grade ammonia absorption tower (4), the level-one
Ammonium hydroxide in ammonia absorption tower (3) is stored in level-one storage tank (30), and the level-one storage tank (30) passes through first-stage pump body
(60) it is connected with saturation ammonium hydroxide storage tank (6).
2. a kind of Ammonia recovery system as described in claim 1, it is characterised in that: the second level ammonia absorption tower (4) includes
First adsorption tower (41) and the second adsorption tower (42), first adsorption tower (41) and the second adsorption tower (42) are arranged in parallel, institute
It states level-one ammonia absorption tower (3) the level-one residual ammonia after absorption is directed respectively into the first adsorption tower (41) and the second adsorption tower
(42) in, second level residual ammonia gas after absorption is imported into tertiary amine respectively by first adsorption tower (41) and the second adsorption tower (42)
Aspiration tower (5) is adsorbed, and the ammonium hydroxide in first adsorption tower (41) and the second adsorption tower (42) is stored in secondary storage
In tank (40), the ammonium hydroxide in the three-level ammonia absorption tower (5) is stored in tertiary storage tank (50).
3. a kind of Ammonia recovery system as claimed in claim 2, it is characterised in that: the secondary storage tank (40) passes through second level
The pump housing (40) is connected with level-one storage tank (30), and the tertiary storage tank (50) passes through the three-level pump housing (40) and secondary storage tank
(40) it is connected.
4. a kind of Ammonia recovery system as described in claim 1, it is characterised in that: the level-one ammonia absorption tower (3), second level
Be equipped with coolant liquid coil pipe in ammonia absorption tower (4), three-level ammonia absorption tower (5), the coolant liquid coil pipe respectively with coolant liquid
Circulation line is correspondingly connected with, and is serially connected with coolant recirculation pump and coolant liquid storage tank on the coolant liquid circulation line.
5. a kind of Ammonia recovery system as described in claim 1, it is characterised in that: the purification pot (2) and level-one ammonia are inhaled
It receives and is connected with suck-back device between tower (3), prevent from being dissolved in generation suck-back reaction during water forms ammonium hydroxide in ammonia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811226262.4A CN109224777A (en) | 2018-10-22 | 2018-10-22 | A kind of Ammonia recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811226262.4A CN109224777A (en) | 2018-10-22 | 2018-10-22 | A kind of Ammonia recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109224777A true CN109224777A (en) | 2019-01-18 |
Family
ID=65080795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811226262.4A Pending CN109224777A (en) | 2018-10-22 | 2018-10-22 | A kind of Ammonia recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109224777A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110330034A (en) * | 2019-06-12 | 2019-10-15 | 新沂市新维气体有限公司 | A kind of ammonia purifying plant step by step being conveniently replaceable absorption material |
| CN115043541A (en) * | 2022-06-14 | 2022-09-13 | 尚越光电科技股份有限公司 | Treatment process and treatment system for flexible solar film roll-to-roll copper indium gallium selenide (CSD) production wastewater |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130011321A1 (en) * | 2011-07-07 | 2013-01-10 | Hsueh Yuan Lee | Exhaust gas treatment apparatus and method |
| CN203461829U (en) * | 2013-08-12 | 2014-03-05 | 苏州金宏气体股份有限公司 | Device for recycling waste ammonia gas of LED (Light-Emitting Diode) gallium nitride production furnace as saturated ammonia water |
| CN204601952U (en) * | 2015-03-04 | 2015-09-02 | 江西中翔科技有限公司 | A kind of ammonia recycling device |
| CN107855003A (en) * | 2017-11-24 | 2018-03-30 | 江苏科技大学 | A kind of ammoniacal liquor recycling device of the ship denitrating system based on SCR |
-
2018
- 2018-10-22 CN CN201811226262.4A patent/CN109224777A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130011321A1 (en) * | 2011-07-07 | 2013-01-10 | Hsueh Yuan Lee | Exhaust gas treatment apparatus and method |
| CN203461829U (en) * | 2013-08-12 | 2014-03-05 | 苏州金宏气体股份有限公司 | Device for recycling waste ammonia gas of LED (Light-Emitting Diode) gallium nitride production furnace as saturated ammonia water |
| CN204601952U (en) * | 2015-03-04 | 2015-09-02 | 江西中翔科技有限公司 | A kind of ammonia recycling device |
| CN107855003A (en) * | 2017-11-24 | 2018-03-30 | 江苏科技大学 | A kind of ammoniacal liquor recycling device of the ship denitrating system based on SCR |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110330034A (en) * | 2019-06-12 | 2019-10-15 | 新沂市新维气体有限公司 | A kind of ammonia purifying plant step by step being conveniently replaceable absorption material |
| CN110330034B (en) * | 2019-06-12 | 2021-01-15 | 新沂市新南环保产业技术研究院有限公司 | Ammonia purification device step by step convenient to change and adsorb material |
| CN115043541A (en) * | 2022-06-14 | 2022-09-13 | 尚越光电科技股份有限公司 | Treatment process and treatment system for flexible solar film roll-to-roll copper indium gallium selenide (CSD) production wastewater |
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