CN108854452A - A kind of recoverying and utilizing method for the ammonia that volatilizees naturally - Google Patents
A kind of recoverying and utilizing method for the ammonia that volatilizees naturally Download PDFInfo
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- CN108854452A CN108854452A CN201810640095.1A CN201810640095A CN108854452A CN 108854452 A CN108854452 A CN 108854452A CN 201810640095 A CN201810640095 A CN 201810640095A CN 108854452 A CN108854452 A CN 108854452A
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- Prior art keywords
- ammonia
- soft water
- air
- tower
- spray absorber
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Classifications
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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
- B01D53/1418—Recovery of products
-
- 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
- B01D53/1493—Selection of liquid materials for use as absorbents
-
- 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
- B01D53/185—Liquid distributors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
- B01D2252/103—Water
-
- 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 present invention relates to a kind of recoverying and utilizing methods of ammonia that volatilizees naturally, include the following steps：During the storage of finished product ammonium hydroxide, part ammonia is diffused into air from ammonium hydroxide, and the increase of air pressure containing ammonia above ammonia vessel generates positive pressure, under the action of pressure difference, air containing ammonia is flowed toward the spray absorber direction of normal pressure, enters spray absorber from the tower bottom of spray absorber；Ammonia-containing gas are risen by tower bottom import, and tower top sprays soft water at this time, so that ammonia-containing gas and soft water counter current contacting；During counter current contacting, the ammonia in ammonia-containing gas is completely soluble in water, and drops to tower bottom with liquid, and the air being purified continues to rise to tower top emptying；Soft water after tower bottom absorption ammonia sends tower top back to through circulating pump again, the purification air containing ammonia newly filled into again.The present invention effectively collects the ammonia diffused out above finished product ammonia vessel, forms weak aqua ammonia waste liquid, prevents inorganization from spreading, and weak aqua ammonia waste liquid is used for the soft water of carbonization system, resource rational utilization.
Description
Technical field
The present invention relates to a kind of recoverying and utilizing methods of ammonia that volatilizees naturally, belong to the technical field of exhaust-gas treatment.
Background technique
During synthesizing the product storage of ammonia industry, the systemic ammonia of finished product ammonia vessel is easy to diffuse to groove top portion sky
In gas.The process of the ammonia that this part is volatilized naturally, generation is slow, and can be gathered in ammonia vessel leads to positive pressure.If not received
Collection processing, can inorganization diffusion generation exhaust gas；If air inducing can generate air inducing air-flow, very to emission-control equipment in ammonia vessel
To being tiny structure, the spilling of ammonia in ammonium hydroxide can be accelerated, be unfavorable for the stability of product.
Summary of the invention
For the above-mentioned technical problem of the prior art, the object of the present invention is to provide a kind of recycling benefits of ammonia that volatilizees naturally
With method, the ammonia diffused out above finished product ammonia vessel is effectively collected, weak aqua ammonia waste liquid is formed, prevents inorganization from spreading,
And weak aqua ammonia waste liquid is used for the soft water of carbonization system, resource rational utilization.
In order to achieve the above objectives, the present invention is achieved by the following technical solutions：
A kind of recoverying and utilizing method for the ammonia that volatilizees naturally, includes the following steps：
（1）Finished product ammonium hydroxide is stored, during storage, part ammonia is diffused into air finished product ammonium hydroxide from ammonium hydroxide, is caused
The increase of air pressure containing ammonia above ammonia vessel generates positive pressure, under the action of pressure difference, spray-absorption of the air containing ammonia toward normal pressure
The flowing of tower direction, enters spray absorber from the tower bottom of spray absorber；
（2）Ammonia-containing gas are risen by tower bottom import, and tower top sprays soft water at this time, so that ammonia-containing gas and soft water counter current contacting；
（3）During counter current contacting, the ammonia in ammonia-containing gas is completely soluble in water, and drops to tower bottom with liquid, obtains
Air to purification continues to rise to tower top emptying；
（4）Soft water after tower bottom absorption ammonia sends tower top back to through circulating pump again, the purification air containing ammonia newly filled into again.
During the soft water circulation, it is sent into carbonization system and is used as solution supplement water.
The soft water is weak aqua ammonia waste liquid.
The recycling is completed in the purification plant, and the purification device includes spray absorber, and the spray is inhaled
The bottom for receiving tower is connected with several industrial ammonia slots by tower bottom inlet tube, is connected with tower top at the top of the spray absorber
Blow-down pipe, and the top of spray absorber is equipped with soft water spray head, the soft water spray head is connected with soft water supplement pipe, and the soft water is mended
It fills pipe and is connected with circulating pump, the circulating pump is connect with spray absorber, forms a circuit.
The volatilize naturally recoverying and utilizing method of ammonia of the present invention has the advantages that：
1, the present invention effectively collects the ammonia diffused out above finished product ammonia vessel, forms weak aqua ammonia waste liquid, prevents inorganization from expanding
It dissipates；
2, the weak aqua ammonia waste liquid in the present invention is used for the soft water of carbonization system, resource rational utilization；
3, the weak aqua ammonia waste liquid in the present invention does not require ammonia concn, simple and easy to control；
4, the ammon amount of carbonization solution can be improved in the weak aqua ammonia waste liquid in the present invention, and the synthesis for helping to increase ammonium hydrogen carbonate produces
Amount, improves the ammonia recovery of carbonization system.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of purification device of the present invention；
Wherein, 1 be spray absorber, 2 be tower bottom inlet tube, 3 be industrial ammonia slot, 4 be top duct, 5 be tower top blow-down pipe,
6 it is soft water supplement pipe, 7 be soft water spray head, 8 is circulating pump.
Specific embodiment
The present invention is further illustrated combined with specific embodiments below, but protection scope of the present invention is not limited to
This.
As shown in Figure 1, the purification device in the present invention includes spray absorber 1, the bottom of spray absorber 1 passes through tower bottom
Inlet tube 2 is connected with 4 industrial ammonia slots 3, and the top of spray absorber 1 is connected with tower top blow-down pipe 5, and spray absorber 1
Top be equipped with soft water spray head 7, soft water spray head 7 be connected with soft water supplement pipe 6, soft water supplement pipe 6 be connected with circulating pump 8, recycle
Pump 8 is connect with spray absorber 1, forms a circuit.
The volatilize naturally recycling of ammonia of the present invention is completed in the purification plant, is included the following steps：
Since finished product ammonium hydroxide is during storage, part ammonia can be diffused into air from ammonium hydroxide, be caused on industrial ammonia slot 3
The increase of air pressure containing ammonia of side generates positive pressure, and under the action of pressure difference, air containing ammonia can be toward 1 direction of spray absorber of normal pressure
Flowing enters spray absorber 1 from tower bottom, ammonia-containing gas rise during with from tower top spray and under soft water countercurrently connect
Touching, since ammonia is soluble easily in water, ammonia is completely soluble in water during counter current contacting drops to tower bottom with liquid, obtains net
The air of change continues to rise to tower top emptying；Tower bottom absorbs the soft water after ammonia（Weak aqua ammonia）Tower top is sent back to again through circulating pump 8
The purification air containing ammonia newly filled into again.During weak aqua ammonia circulation, according to production requirement, it is sent into carbonization system at any time and makees
Water is supplemented for solution to use.
Above-described embodiment is only used for illustrating inventive concept of the invention, rather than the restriction to rights protection of the present invention,
It is all to be made a non-material change to the present invention using this design, protection scope of the present invention should all be fallen into.
Claims (4)
1. a kind of recoverying and utilizing method for the ammonia that volatilizees naturally, it is characterised in that include the following steps：
（1）Finished product ammonium hydroxide is stored, during storage, part ammonia is diffused into air finished product ammonium hydroxide from ammonium hydroxide, is caused
The increase of air pressure containing ammonia above ammonia vessel generates positive pressure, under the action of pressure difference, spray-absorption of the air containing ammonia toward normal pressure
The flowing of tower direction, enters spray absorber from the tower bottom of spray absorber；
（2）Ammonia-containing gas are risen by tower bottom import, and tower top sprays soft water at this time, so that ammonia-containing gas and soft water counter current contacting；
（3）During counter current contacting, the ammonia in ammonia-containing gas is completely soluble in water, and drops to tower bottom with liquid, obtains
Air to purification continues to rise to tower top emptying；
（4）Soft water after tower bottom absorption ammonia sends tower top back to through circulating pump again, the purification air containing ammonia newly filled into again.
2. the recoverying and utilizing method for the ammonia that volatilizees naturally as described in claim 1, it is characterised in that：The process of the soft water circulation
In, it is sent into carbonization system and is used as solution supplement water.
3. the recoverying and utilizing method for the ammonia that volatilizees naturally as claimed in claim 1 or 2, it is characterised in that：The soft water is dilute
Ammonium hydroxide waste liquid.
4. the recoverying and utilizing method for the ammonia that volatilizees naturally as claimed in claim 3, it is characterised in that：The recycling is purifying
It is completed in device, the purification device includes spray absorber, and the bottom of the spray absorber is connected by tower bottom inlet tube
Several industrial ammonia slots are connected to, tower top blow-down pipe, and the top of spray absorber are connected at the top of the spray absorber
Equipped with soft water spray head, the soft water spray head is connected with soft water supplement pipe, and the soft water supplement pipe is connected with circulating pump, the circulation
Pump is connect with spray absorber, forms a circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640095.1A CN108854452A (en) | 2018-06-21 | 2018-06-21 | A kind of recoverying and utilizing method for the ammonia that volatilizees naturally |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640095.1A CN108854452A (en) | 2018-06-21 | 2018-06-21 | A kind of recoverying and utilizing method for the ammonia that volatilizees naturally |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108854452A true CN108854452A (en) | 2018-11-23 |
Family
ID=64340238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810640095.1A Pending CN108854452A (en) | 2018-06-21 | 2018-06-21 | A kind of recoverying and utilizing method for the ammonia that volatilizees naturally |
Country Status (1)
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|---|---|
| CN (1) | CN108854452A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401409A (en) * | 2002-04-23 | 2003-03-12 | 周永德 | Safety environmentally friendly ammonia tail gas recovery technique by negative pressure process |
| US7682425B2 (en) * | 2003-10-02 | 2010-03-23 | Uhde Gmbh | Method for removing ammonia and dust from a waste gas that results during the production of fertilizers |
| CN201848194U (en) * | 2010-09-08 | 2011-06-01 | 鞍钢股份有限公司 | Tail gas recovering device for mechanical ammonia water clarifying tank |
| CN202506309U (en) * | 2012-04-20 | 2012-10-31 | 成都玉龙化工有限公司 | Ammonia washing and recovering device |
| CN202538615U (en) * | 2012-05-07 | 2012-11-21 | 成都玉龙化工有限公司 | Gas washing recovery device of ammonia water storage tank |
| CN203598639U (en) * | 2013-11-29 | 2014-05-21 | 安徽六国化工股份有限公司 | Integrated tail gas washing device for ammonium phosphate device |
| CN203842475U (en) * | 2014-04-24 | 2014-09-24 | 四川益天环保科技有限公司 | Automatic ammonia absorption device |
| CN204051384U (en) * | 2014-08-07 | 2014-12-31 | 杭州广翰能源科技有限公司 | A kind of ammonia washing recovering device |
| CN205549974U (en) * | 2016-02-15 | 2016-09-07 | 中国庆华能源集团有限公司 | A device for retrieving ammonia that workshop section's superpressure was discharged is retrieved to ammonia |
| CN106268195A (en) * | 2016-10-13 | 2017-01-04 | 青海百事特镁业有限公司 | A kind of ammonia absorption tower device of the ammonia in high efficiente callback waste gas |
| CN206549409U (en) * | 2017-02-14 | 2017-10-13 | 青岛长荣化工科技有限公司 | Treatment device for ammonia-containing waste gas |
| CN206980424U (en) * | 2017-07-10 | 2018-02-09 | 湖北三宁化工股份有限公司 | Ammonia system is released retracting device |
-
2018
- 2018-06-21 CN CN201810640095.1A patent/CN108854452A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401409A (en) * | 2002-04-23 | 2003-03-12 | 周永德 | Safety environmentally friendly ammonia tail gas recovery technique by negative pressure process |
| US7682425B2 (en) * | 2003-10-02 | 2010-03-23 | Uhde Gmbh | Method for removing ammonia and dust from a waste gas that results during the production of fertilizers |
| CN201848194U (en) * | 2010-09-08 | 2011-06-01 | 鞍钢股份有限公司 | Tail gas recovering device for mechanical ammonia water clarifying tank |
| CN202506309U (en) * | 2012-04-20 | 2012-10-31 | 成都玉龙化工有限公司 | Ammonia washing and recovering device |
| CN202538615U (en) * | 2012-05-07 | 2012-11-21 | 成都玉龙化工有限公司 | Gas washing recovery device of ammonia water storage tank |
| CN203598639U (en) * | 2013-11-29 | 2014-05-21 | 安徽六国化工股份有限公司 | Integrated tail gas washing device for ammonium phosphate device |
| CN203842475U (en) * | 2014-04-24 | 2014-09-24 | 四川益天环保科技有限公司 | Automatic ammonia absorption device |
| CN204051384U (en) * | 2014-08-07 | 2014-12-31 | 杭州广翰能源科技有限公司 | A kind of ammonia washing recovering device |
| CN205549974U (en) * | 2016-02-15 | 2016-09-07 | 中国庆华能源集团有限公司 | A device for retrieving ammonia that workshop section's superpressure was discharged is retrieved to ammonia |
| CN106268195A (en) * | 2016-10-13 | 2017-01-04 | 青海百事特镁业有限公司 | A kind of ammonia absorption tower device of the ammonia in high efficiente callback waste gas |
| CN206549409U (en) * | 2017-02-14 | 2017-10-13 | 青岛长荣化工科技有限公司 | Treatment device for ammonia-containing waste gas |
| CN206980424U (en) * | 2017-07-10 | 2018-02-09 | 湖北三宁化工股份有限公司 | Ammonia system is released retracting device |
Non-Patent Citations (1)
| Title |
|---|
| 潘灼南等: "《氮肥工业》", 31 March 1964, 中国工业出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 312000 Linhai Road, Doumen Town, Yuecheng District, Shaoxing City, Zhejiang Province Applicant after: Shaoxing Fengdeng Environmental Protection Co., Ltd. Address before: 312000 Linhai Road, Doumen Town, Yuecheng District, Shaoxing City, Zhejiang Province Applicant before: Shaoxing Chemical Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181123 |