CN101928012B - Energy utilization method in low-temperature liquid ammonia recovery process - Google Patents
Energy utilization method in low-temperature liquid ammonia recovery process Download PDFInfo
- Publication number
- CN101928012B CN101928012B CN2010102796192A CN201010279619A CN101928012B CN 101928012 B CN101928012 B CN 101928012B CN 2010102796192 A CN2010102796192 A CN 2010102796192A CN 201010279619 A CN201010279619 A CN 201010279619A CN 101928012 B CN101928012 B CN 101928012B
- Authority
- CN
- China
- Prior art keywords
- ammonia
- magnesium chloride
- ammoniate
- moisture eliminator
- liquid ammonia
- 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
Images
Landscapes
- Silicon Compounds (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses an energy utilization method in low-temperature liquid ammonia recovery process, which is characterized by comprising the following steps: (1) vacuumizing at least one hexammoniated magnesium chloride drier, and putting size produced in the silane production process into the hexammoniated magnesium chloride drier with a magnesium silicide method; (2) sending ammonia into the jacket of the hexammoniated magnesium chloride drier, and heating and evaporating residual liquid ammonia in the size into ammonia gas; (3) sending the obtained ammonia gas into an ammonia gas compressor, cycling and sending the compressed ammonia into the jacket, and heating and evaporating residual liquid ammonia in the size into ammonia gas; (4) after heating and condensing the ammonia gas in the jacket, obtaining the mixture of ammonia gas and liquid ammonia, and sending the mixture to an ammonia separation groove; causing the liquid ammonia to directly flow into a liquid ammonia storage groove to be stored; and ensuring that the obtained liquid ammonia directly flows into the liquid ammonia storage groove to be stored after ammonia gas flows into an ammonia gas condenser. The invention has the advantages of saving a great quantity of heat medium and cold medium.
Description
Technical field
The present invention relates to a kind of energy and utilize method, the energy that relates in particular in the low-temperature liquid ammonia recovery process in a kind of magnesium chloride hex-ammoniate slurry utilizes method.
Background technology
The magnesium silicide method synthesizing silane is that magnesium silicide and ammonium chloride react the technological process that generates silane under the liquefied ammonia environment; To use liquid ammonia as medium in the reaction process; The final ammonia that generates and the liquefied ammonia of use; Be blended in the residue that magnesium chloride hex-ammoniate is a staple,, not only wasted resource but also contaminate environment if can not get reclaiming.
The recovery of the low-temperature liquid ammonia in the existing magnesium chloride hex-ammoniate slurry; Usually with steam or deep fat heat drying; The ammonia that drying goes out condenses to-30 ℃ of storages with the low temperature refrigerant, has reduced environmental pollution, but this technology needs the heating agent and the refrigerant of labor aborning.
Summary of the invention
The energy that technical problem to be solved by this invention provides in a kind of low-temperature liquid ammonia recovery process that can practice thrift a large amount of heating agents and refrigerant utilizes method.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: the energy in a kind of low-temperature liquid ammonia recovery process utilizes method, may further comprise the steps:
(1) at least one magnesium chloride hex-ammoniate moisture eliminator vacuumized, magnesium silicide method is produced the slurry that produces in the silane process put into described magnesium chloride hex-ammoniate moisture eliminator;
The temperature that (2) will be stored in advance in the ammonia surge tank is 50-150 ℃, and pressure is that the ammonia of 1.45-2.0Mpa is sent in the described magnesium chloride hex-ammoniate moisture eliminator chuck, is ammonia with the low-temperature liquid ammonia heating evaporation in the described slurry;
(3) ammonia that step (2) is obtained is sent into ammonia compressor; Obtaining pressure is 1.45-2.0Mpa; Temperature is 50-150 ℃ a ammonia; Ammonia after the compression is sent into described ammonia surge tank, and recycling gets in the described magnesium chloride hex-ammoniate moisture eliminator chuck, is ammonia with the low-temperature liquid ammonia heating evaporation in the described slurry;
(4) mixture that obtains ammonia and liquefied ammonia after the ammonia heat release condensation in the described magnesium chloride hex-ammoniate moisture eliminator chuck is sent into the ammonia separator tank; Liquefied ammonia in the described mixture flows directly into the liquefied ammonia storage tank and stores; Ammonia in the described mixtinite liquefies after flowing into ammonia condenser, and the liquefied ammonia that obtains flows directly into described liquefied ammonia storage tank and stores.
Described ammonia condenser adopts the circulating water cooling cooling.
Described magnesium chloride hex-ammoniate moisture eliminator central interior axially is provided with rotating shaft; Described rotating shaft is provided with a plurality of rakes; Drag head one end of described rake and described magnesium chloride hex-ammoniate moisture eliminator internal surface are provided with minim gap, and described rotating shaft one end is connected with the outside motor of described magnesium chloride hex-ammoniate moisture eliminator.
The invention has the advantages that: because the hot ammonia in the magnesium chloride hex-ammoniate moisture eliminator chuck is used for the low-temperature liquid ammonia in the heating evaporation slurry; Low-temperature liquid ammonia then is evaporated to ammonia; Send into after this ammonia that is evaporated is compressed and be used for continuing the low-temperature liquid ammonia in the heating evaporation slurry in the magnesium chloride hex-ammoniate moisture eliminator chuck; And the liquefied ammonia that is condensed into normal temperature after the ammonia heat release in the magnesium chloride hex-ammoniate moisture eliminator chuck stores, because the hot ammonia in the magnesium chloride hex-ammoniate moisture eliminator chuck has replaced heating medium commonly used, has practiced thrift heating agent; And the evaporation of low-temperature liquid ammonia heat absorption replaces the needed water coolant of ammonia condensation; Practice thrift refrigerant, therefore both reclaimed ammonia, reached the purpose of conserve energy again.
Description of drawings
Fig. 1 is an equipment flowsheet synoptic diagram of the present invention.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, the energy in a kind of low-temperature liquid ammonia recovery process utilizes method, may further comprise the steps:
(1) two magnesium chloride hex-ammoniate moisture eliminators 1 is vacuumized, magnesium silicide method is produced the slurry that produces in the silane process put into two magnesium chloride hex-ammoniate moisture eliminators 1;
The temperature that (2) will be stored in advance in the ammonia surge tank 2 is 50-150 ℃, and pressure is that the ammonia of 1.45-2.0Mpa is sent in two magnesium chloride hex-ammoniate moisture eliminator chucks 3, is ammonia with the low-temperature liquid ammonia heating evaporation in the slurry;
(3) ammonia that step (2) is obtained is sent into ammonia compressor 4; Obtaining pressure is 1.45-2.0Mpa; Temperature is 50-150 ℃ a ammonia; Ammonia after the compression is sent into ammonia surge tank 2, and recycling gets in two magnesium chloride hex-ammoniate moisture eliminator chucks 3, is ammonia with the low-temperature liquid ammonia heating evaporation in the slurry;
(4) mixture that obtains ammonia and liquefied ammonia after the ammonia heat release condensation in two magnesium chloride hex-ammoniate moisture eliminator chucks 3 is sent into ammonia separator tank 5; Liquefied ammonia in the mixture flows directly into liquefied ammonia storage tank 6 and stores; Ammonia in the mixture flows into and adopts the 7 back liquefaction of circulating water cooling refrigerative ammonia condenser, and the liquefied ammonia that obtains flows directly into described liquefied ammonia storage tank 6 and stores.
In this specific embodiment; Magnesium chloride hex-ammoniate moisture eliminator 1 central interior axially is provided with rotating shaft 8; Rotating shaft 8 is provided with a plurality of rakes, and drag head 9 one ends and magnesium chloride hex-ammoniate moisture eliminator 1 internal surface of rake are provided with minim gap, and rotating shaft 8 one ends are connected with magnesium chloride hex-ammoniate moisture eliminator 1 outside motor 10.
Claims (3)
1. the energy in the low-temperature liquid ammonia recovery process utilizes method, it is characterized in that may further comprise the steps:
(1) at least one magnesium chloride hex-ammoniate moisture eliminator vacuumized, magnesium silicide method is produced the slurry that produces in the silane process put into described magnesium chloride hex-ammoniate moisture eliminator;
The temperature that (2) will be stored in advance in the ammonia surge tank is 50-150 ℃, and pressure is that the ammonia of 1.45-2.0MPa is sent in the described magnesium chloride hex-ammoniate moisture eliminator chuck, is ammonia with the low-temperature liquid ammonia heating evaporation in the described slurry;
(3) ammonia that step (2) is obtained is sent into ammonia compressor; Obtaining pressure is 1.45-2.0MPa; Temperature is 50-150 ℃ a ammonia; Ammonia after the compression is sent into described ammonia surge tank, and recycling gets in the described magnesium chloride hex-ammoniate moisture eliminator chuck, is ammonia with the low-temperature liquid ammonia heating evaporation in the described slurry;
(4) mixture that obtains ammonia and liquefied ammonia after the ammonia heat release condensation in the described magnesium chloride hex-ammoniate moisture eliminator chuck is sent into the ammonia separator tank; Liquefied ammonia in the described mixture flows directly into the liquefied ammonia storage tank and stores; Ammonia in the described mixture liquefies after flowing into ammonia condenser, and the liquefied ammonia that obtains flows directly into described liquefied ammonia storage tank and stores.
2. the energy in a kind of low-temperature liquid ammonia recovery process according to claim 1 utilizes method, it is characterized in that: described ammonia condenser adopts the circulating water cooling cooling.
3. the energy in a kind of low-temperature liquid ammonia recovery process according to claim 1 utilizes method; It is characterized in that: described magnesium chloride hex-ammoniate moisture eliminator central interior axially is provided with rotating shaft; Described rotating shaft is provided with a plurality of rakes; Drag head one end of described rake and described magnesium chloride hex-ammoniate moisture eliminator internal surface are provided with minim gap, and described rotating shaft one end is connected with the outside motor of described magnesium chloride hex-ammoniate moisture eliminator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102796192A CN101928012B (en) | 2010-09-13 | 2010-09-13 | Energy utilization method in low-temperature liquid ammonia recovery process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102796192A CN101928012B (en) | 2010-09-13 | 2010-09-13 | Energy utilization method in low-temperature liquid ammonia recovery process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101928012A CN101928012A (en) | 2010-12-29 |
| CN101928012B true CN101928012B (en) | 2012-01-11 |
Family
ID=43367507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102796192A Expired - Fee Related CN101928012B (en) | 2010-09-13 | 2010-09-13 | Energy utilization method in low-temperature liquid ammonia recovery process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101928012B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623089B (en) * | 2021-08-11 | 2023-01-24 | 中国船舶重工集团柴油机有限公司 | Marine ammonia supply system and boats and ships |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPR000100A0 (en) * | 2000-09-08 | 2000-10-05 | Australian Magnesium Operations Pty Ltd | Ammonia storage |
| CN100531846C (en) * | 2008-04-01 | 2009-08-26 | 南京特种气体厂有限公司 | Recovery cyclic utilization method and apparatus for recovering discharged alkaline air in process of production of silane with magnesium silicide method |
| CN101817541B (en) * | 2010-04-21 | 2012-03-21 | 江苏扬农化工集团有限公司 | Method and device for separating magnesium chloride hexammoniate during silane production by the magnesium silicide method |
-
2010
- 2010-09-13 CN CN2010102796192A patent/CN101928012B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101928012A (en) | 2010-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103629854B (en) | The ammonia that a kind of heat medium water drives and the integrated absorption type refrigerating unit of lithium bromide and method | |
| CN105043077B (en) | Air drying system and working method of biomass capable of efficiently recovering waste heat | |
| CN104857810A (en) | Gas condensation technology and equipment | |
| CN105416009B (en) | Power-equipment liquefied gas bottle cooling capacity recovering method | |
| CN104671210B (en) | Direct separation method of silicon tetrafluoride and anhydrous hydrogen fluoride mixed gas | |
| CN101955192A (en) | Ammonia-cooled ammonia reclamation method and mating device thereof | |
| CN201389356Y (en) | Self-cooling refrigerated compressed air dryer | |
| CN101928012B (en) | Energy utilization method in low-temperature liquid ammonia recovery process | |
| CN105157269B (en) | A kind of auto-cascading refrigeration system with low temperature functional | |
| CN103759500A (en) | Method and device for manufacturing high purity nitrogen in low energy consumption mode | |
| CN206508753U (en) | Defrost technology integrated oil gas recovering device is recognized based on image | |
| CN105737457B (en) | A kind of solvent recovery process | |
| CN104651004B (en) | Energy-saving coal-based natural gas process | |
| CN104801157A (en) | Moisture removal device and air compressor system | |
| CN102039082B (en) | Method and device for vaporizing hydrogen chloride in tail gas in polycrystalline silicon production | |
| CN203572091U (en) | Heating-medium-water-driving ammonia and lithium bromide integrated absorption refrigeration device | |
| CN204718172U (en) | A kind of auto-cascading refrigeration system | |
| CN206896878U (en) | A kind of device for being dehydrated ternary azeotrope by extracting rectifying | |
| CN207113319U (en) | Separator for incoagulable gas in the ammonia absorption type refrigeration circulatory system | |
| CN202209828U (en) | Spiral pipe type heat exchange oil separator | |
| CN205718206U (en) | Utilize the system of carbon black tail gas preparing liquefied natural gas | |
| CN202254545U (en) | Preheating type device for purifying and recycling refrigerant | |
| CN212299543U (en) | Waste heat utilization device of phenol ammonia recovery system | |
| CN101935056B (en) | Ammonia separating process for ammonia synthesis | |
| CN114470841A (en) | Heat energy recovery equipment for pre-dipping workshop section |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CNCEC SEDIN NINGBO ENGINEERING CO., LTD. Free format text: FORMER NAME: NINGBO ENGINEERING CO., LTD, SECOND DESIGN INSTITUTE OF CHEMICAL INDUSTRY |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 315040, Lane 999, Lane 1, R & D Park, national hi tech Zone, Zhejiang, Ningbo Patentee after: Sedin Ningbo Engineering Co., Ltd. Patentee after: Zhejiang Zhongfu Guineng Co., Ltd. Address before: 315040, Lane 999, Lane 1, R & D Park, national hi tech Zone, Zhejiang, Ningbo Patentee before: Ningbo Engineering Co., Ltd, Second Design Institute of Chemical Industry Patentee before: Zhejiang Zhongfu Guineng Co., Ltd. |
|
| 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: 20120111 Termination date: 20160913 |