CN204097106U - A kind of ammonia recycling device preparing synthetic ammonia - Google Patents
A kind of ammonia recycling device preparing synthetic ammonia Download PDFInfo
- Publication number
- CN204097106U CN204097106U CN201420467298.2U CN201420467298U CN204097106U CN 204097106 U CN204097106 U CN 204097106U CN 201420467298 U CN201420467298 U CN 201420467298U CN 204097106 U CN204097106 U CN 204097106U
- Authority
- CN
- China
- Prior art keywords
- ammonia
- recycling device
- absorber
- tower
- distillation tower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Abstract
The utility model relates to chemical field, and particularly relate to a kind of ammonia recycling device preparing synthetic ammonia, comprise ammonia absorber, described ammonia absorber comprises off-gas entrance, and ammonia absorber connects interchanger and distillation tower, is provided with Steam reboiler outside distillation tower tower.The ammonia recycling device of what the utility model provided prepare synthetic ammonia, has following beneficial effect relative to prior art: the rate of recovery is high, environmental protection, efficient, makes full use of various heat, connects compact.
Description
Technical field
The utility model relates to chemical field, particularly relates to a kind of ammonia recycling device preparing synthetic ammonia.
Background technology
Traditional chemical field Energy harvesting is insufficient, causes workshop temperature very high, but also will provide heating heat specially, and Ammonia recovery also can be affected.
Utility model content
The purpose of this utility model is to provide that a kind of rate of recovery is high, environmental protection, prepare the ammonia recycling device of synthetic ammonia efficiently.
In order to realize above object, the utility model adopts following technical scheme: a kind of ammonia recycling device preparing synthetic ammonia, comprises ammonia absorber, and described ammonia absorber comprises off-gas entrance, ammonia absorber connects interchanger and distillation tower, is provided with Steam reboiler outside distillation tower tower.
The further technical scheme of the utility model is, described distillation tower connects watercooler.
The further technical scheme of the utility model is, described watercooler connects ammonia spherical tank.
The further technical scheme of the utility model is, described ammonia absorber also connects phlegma first water cooler, has circulation tube between described phlegma first water cooler and ammonia absorber.
The further technical scheme of the utility model is, described watercooler is Bonding pressure setter also.
The further technical scheme of the utility model is, described Steam reboiler is provided with special moisturizing pipeline.
Adopt the utility model of as above technical scheme, have following beneficial effect relative to prior art: the rate of recovery is high, environmental protection, efficient, make full use of various heat, connect compact.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation preparing the ammonia recycling device specific embodiment of synthetic ammonia of the utility model, wherein: 1 ammonia absorber; 2 interchanger; 3 distillation towers; 4 Steam reboiler; 5 watercoolers; 6 ammonia spherical tanks; 7 phlegma first water coolers.
Embodiment
Be described embodiment of the present utility model below in conjunction with accompanying drawing, embodiment is not formed restriction of the present utility model.
Embodiment
As shown in Figure 1, a kind of ammonia recycling device preparing synthetic ammonia, comprises ammonia absorber 1, and ammonia absorber 1 comprises off-gas entrance, and ammonia absorber 1 connects interchanger 2 and distillation tower 3, is provided with Steam reboiler 4 outside distillation tower 3 tower.Distillation tower 3 connects watercooler 5, and watercooler 5 connects ammonia spherical tank 6, and ammonia absorber 1 also connects phlegma first water cooler 7, and have circulation tube between phlegma first water cooler 7 and ammonia absorber 1, Bonding pressure setter gone back by watercooler 5.Steam reboiler 4 is provided with special moisturizing pipeline.
The principle of work of what the present embodiment provided the prepare ammonia recycling device of synthetic ammonia is as follows.
The NH in off-gas is absorbed with water
3, make NH in off-gas
3content is down to less than 0.2%; And reclaim the ammonia in ammoniacal liquor by distillation method, be sent to ammonia storage facility as product ammonia.
Use water absorbing ammonia, generate ammoniacal liquor, as shown in following reaction equation:
NH
3+H
20——NH
3·H
20。
In off-gas, other components solubleness in water is minimum, is thus able to ammonia to separate from off-gas.
With rectification method by the NH in the ammoniacal liquor of generation
3distill, with middle pressure steam indirect heating ammoniacal liquor in boiling device at the bottom of tower, the pure NH of tower top
3backflow, according to principles of rectification, tower top can obtain pure NH
3fraction, overhead fraction is after cooling condensation, and part is used as backflow, and part is sent to ammonia storage facility as finished product ammonia.
Off-gas enters in tower from the bottom of ammonia absorber 1, and with the poor ammoniacal liquor counter current contact entered from tower top, gas rises along 12 pieces of valve trays by dish, the NH in gas
3be only absorbed by the water, go out the gas of ammonia absorber 1 tower top containing NH
3<0.2%, converges with the tail gas of ammonia groove, hydrogen retrieval and is sent to fuel gas pipe network, the given 3.5MPa of pressure of ammonia absorber 1.
Ammoniacal liquor (concentration about 10%) flows out by bottom ammonia absorber 1, its flow is controlled by fluid level controller, first the tube side of interchanger 2 is entered, with the weak ammonia heat exchange of the bottom from distillation tower of shell side, temperature rises to about 120 DEG C, interchanger 2 is provided with temperature adjustment by-pass, and distillation tower 3 entrance ammonia temperature is controlled; Then in the middle part of distillation tower 3, the 12nd piece of tower tray enters distillation tower 3 stripping section, is provided with Steam reboiler 4 outside distillation tower 3 tower, and its tube side middle pressure steam indirect heating, the ammoniacal liquor of shell side and distillation tower 3 are formed by thermal siphon and circulate, and flash steam dissolves NH
3and water vapor; At the bottom of tower and flash distillation in reboiler, the NH that is vaporized with
3rise along valve tray with water vapor, with top-down ammoniacal liquor counter current contact, by the NH in ammoniacal liquor
3progressively from liquid phase, stripping out, and to be purified rectifying section is concentrated, the pure NH derived from distillation tower 3 top
3feedback point enters the shell side of watercooler 5, and gas ammonia cooling condensation is liquefied ammonia, and partial condensation ammonia returns the tower top of distillation tower 3, and as the phegma of rectifying section, rest part is sent to ammonia spherical tank 6 as finished product ammonia; Quantity of reflux is controlled by top tower control device, and distillation tower 3 tower top pressure is relevant with the quantity discharged of the non-condensable gases in watercooler 5, controls this quantity discharged by pressure-regulator, thus controls the tower top pressure of distillation tower 3.
Go out the poor ammonia temperature about 213 DEG C at the bottom of distillation tower 3 tower, first interchanger 2 shell-side is entered, about 145 DEG C are cooled to by from the ammoniacal liquor at the bottom of ammonia absorber 1 tower, flow mostly through in the pipe of phlegma first water cooler 7, temperature is down to about 98 DEG C, then is cooled to about 40 DEG C, is then pressurizeed by aqua ammonia pump and is sent to ammonia absorber 1 top, so far just establish system ammonia circulation, ammonia absorber 1 enters the poor ammoniacal liquor flow of tower to concludeing a contract or treaty 2000kg/h.
Part water (exported liquefied ammonia etc. taken away by ammonia absorber 1 exhaust gas stream, distillation tower 3) all will be lost during ammonia absorber 1 and distillation tower 3 run, for ensureing two tower level stabilities, Steam reboiler 4 is provided with special moisturizing pipeline, the some vapor phlegma of Steam reboiler 4 is interrupted filling in distillation tower 3.
Claims (6)
1. prepare the ammonia recycling device of synthetic ammonia for one kind, it is characterized in that, comprise ammonia absorber (1), described ammonia absorber (1) comprises off-gas entrance, ammonia absorber (1) connects interchanger (2) and distillation tower (3), is provided with Steam reboiler (4) outside distillation tower (3) tower.
2. the ammonia recycling device preparing synthetic ammonia according to claim 1, is characterized in that, described distillation tower (3) connects watercooler (5).
3. the ammonia recycling device preparing synthetic ammonia according to claim 2, is characterized in that, described watercooler (5) connects ammonia spherical tank (6).
4. the ammonia recycling device preparing synthetic ammonia according to claim 2, it is characterized in that, described ammonia absorber (1) also connects phlegma first water cooler (7), has circulation tube between described phlegma first water cooler (7) and ammonia absorber (1).
5. the ammonia recycling device preparing synthetic ammonia according to claim 2, is characterized in that, Bonding pressure setter gone back by described watercooler (5).
6. the ammonia recycling device preparing synthetic ammonia according to claim 1, is characterized in that, described Steam reboiler (4) is provided with special moisturizing pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467298.2U CN204097106U (en) | 2014-08-18 | 2014-08-18 | A kind of ammonia recycling device preparing synthetic ammonia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467298.2U CN204097106U (en) | 2014-08-18 | 2014-08-18 | A kind of ammonia recycling device preparing synthetic ammonia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204097106U true CN204097106U (en) | 2015-01-14 |
Family
ID=52265551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420467298.2U Expired - Fee Related CN204097106U (en) | 2014-08-18 | 2014-08-18 | A kind of ammonia recycling device preparing synthetic ammonia |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204097106U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110563000A (en) * | 2019-10-11 | 2019-12-13 | 营创三征(营口)精细化工有限公司 | Energy-saving tail gas deamination process and equipment for producing sodium cyanide |
-
2014
- 2014-08-18 CN CN201420467298.2U patent/CN204097106U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110563000A (en) * | 2019-10-11 | 2019-12-13 | 营创三征(营口)精细化工有限公司 | Energy-saving tail gas deamination process and equipment for producing sodium cyanide |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104743728A (en) | Energy-saving type deaminizing method for realizing negative pressure deamination by coking surplus ammonia water | |
| CN207793187U (en) | A kind of amine liquid regenerative system applied to Floating Liquefied Natural Gas facility | |
| CN105417603A (en) | Negative-pressure low-reflux-ratio coking wastewater distillation method | |
| CN204097106U (en) | A kind of ammonia recycling device preparing synthetic ammonia | |
| CN101985349A (en) | Production method for preparing deuterium depleted water | |
| CN201625428U (en) | Device for recycling waste heat of medium-pressure steam condensate | |
| CN203794660U (en) | Negative-pressure ammonia evaporating device for coking remaining ammonia water | |
| CN108048147A (en) | A kind of amine liquid regenerative system and technique applied to Floating Liquefied Natural Gas facility | |
| CN203187610U (en) | Methenamine production device | |
| CN203833908U (en) | Natural gas deacidifying device | |
| CN103466549A (en) | High-purity chlorine gas rectifying technology and equipment thereof | |
| CN205435021U (en) | System is used multipurposely to synthetic gas system ethylene glycol technology rectifying column overhead gas heat | |
| CN202569628U (en) | High safety rectification condensing unit | |
| CN204159189U (en) | Absorption tower device in a kind of silver-colored method high-concentration formaldehyde device | |
| CN205115337U (en) | Low power consuming is by device of methyl alcohol preparation aerosol dimethyl ether | |
| CN203976674U (en) | Hexalin tripping device in the cyclohexene method preparing cyclohexanone production process | |
| CN203946915U (en) | Negative pressure ammonia evaporation system taking cyclic ammonia water as thermal source | |
| CN206590926U (en) | Deoxygenation condensate vacuum system | |
| CN204265446U (en) | A kind of magnesium nitric acid process produces the maximization production equipment of concentrated nitric acid | |
| CN204051034U (en) | A kind of rectifying column tower top waste heat utilization device | |
| CN209696301U (en) | Adipic acid plant dust technology concentration systems | |
| CN203625057U (en) | Liquid ammonia recovery device | |
| CN201962221U (en) | Improved alcohol recovering device | |
| CN203668002U (en) | Efficient ultralow-temperature heat energy recovery system of sulfur-phosphorus combination device | |
| CN207871583U (en) | Scrubbing tower washings are used as carbon-dioxide regenerating tower top gas cooling water system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Zhengyi Inventor after: Feng Faguang Inventor after: Chen Jun Inventor after: Li Jun Inventor after: Zhang Qingrong Inventor after: Long Zhongshu Inventor before: Chen Panjiang Inventor before: Feng Faguang Inventor before: Chen Jun |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20180818 |