CN204848289U - Ammonia converter waste heat recovery utilizes system - Google Patents
Ammonia converter waste heat recovery utilizes system Download PDFInfo
- Publication number
- CN204848289U CN204848289U CN201520661480.6U CN201520661480U CN204848289U CN 204848289 U CN204848289 U CN 204848289U CN 201520661480 U CN201520661480 U CN 201520661480U CN 204848289 U CN204848289 U CN 204848289U
- Authority
- CN
- China
- Prior art keywords
- medium pressure
- pressure boiler
- synthetic
- synthesis
- 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.)
- Active
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 47
- 239000002918 waste heat Substances 0.000 title claims abstract description 16
- 238000011084 recovery Methods 0.000 title abstract 2
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 68
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 68
- 239000007789 gas Substances 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000007306 turnover Effects 0.000 claims abstract description 11
- 230000008676 import Effects 0.000 claims abstract description 8
- 238000004064 recycling Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 239000001257 hydrogen Substances 0.000 description 10
- 229910052739 hydrogen Inorganic materials 0.000 description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 235000009508 confectionery Nutrition 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model discloses an ammonia converter waste heat recovery utilizes system, including the ammonia converter, the synthetic gas export of ammonia converter links to each other with synthetic medium pressure boiler's synthetic gas air inlet, the steam that synthetic medium pressure boiler came out removes heat transfer formula reborner through the middle pressure steam pipe network, synthetic medium pressure boiler's synthetic gas gas outlet links to each other with synthetic time medium pressure boiler's synthetic gas air inlet, synthetic time medium pressure boiler's synthetic gas gas outlet links to each other with the import of the heat source of feed water preheater, hot water after the feed water preheater preheats exports synthetic medium pressure boiler and synthetic time medium pressure boiler through the feed water, the heat source export of feed water preheater links to each other with the heat source import of business turn over tower heat exchanger. The utility model discloses make the waste heat of synthetic gas obtain abundant reasonable application, for whole ammonia synthesis technology provides technology steam, guarantee the steady operation of ammonia synthesis technology, play energy saving and emission reduction's effect.
Description
Technical field
The utility model relates to the ammonia synthesis converter synthetic gas waste heat recycling system in a kind of ammonia synthesis process.
Background technology
Synthetic ammonia another name ammonia, molecular formula NH
3.Refer to the ammonia directly synthesized in the presence of the catalyst at elevated temperature and pressure by nitrogen and hydrogen.Ammonia is in the world except reclaiming from coke(oven)gas except by-product on a small quantity, and the overwhelming majority is the ammonia of synthesis.Synthetic ammonia is mainly used as chemical fertilizer, refrigerant and industrial chemicals.
Synthetic ammonia is mainstay of the national economy industry, and it is the first that output occupies various Chemicals, and be also major power consumer, the energy of nearly 10% is for the synthesis of ammonia in the world simultaneously.Along with the energy, the increasingly sharpening of environment Double jeopardy, the energy-saving and emission-reduction of synthetic ammonia installation are imperative.
The whole technique of synthetic ammonia is: Sweet natural gas and water vapor are generated hydrogen through catalyzed reaction, hydrogen again with the nitrogen in air in ammonia synthesis converter under the existence of High Temperature High Pressure and catalyzer synthetic ammonia.
Synthetic ammonia installation steam system is generally divided into medium pressure steam system (3.5-4.2MPaG, 240-255 DEG C), secondary medium pressure steam system (2.2-2.5MPaG, 220-226 DEG C), steam vapour system (< 0.42MPaG, 100-144.7 DEG C), wherein middle pressure steam is used as process steam, namely react with Sweet natural gas and generate hydrogen, mainly fire with the high boiler that becomes by transforming boiler at present, energy consumption is high.
Low-pressure steam (< 0.42MPaG, 100-144.7 DEG C), uses as system tracing thermal-insulating and boiler water deaeration.
The temperature of the synthetic gas (containing ammonia, unreacted nitrogen and hydrogen) of ammonia synthesis converter outlet is 380-400 DEG C, at present not used for production middle pressure steam, is unfavorable for energy-saving and emission-reduction.
Utility model content
In order to solve the problems of the technologies described above, the ammonia synthesis converter waste heat recycling system of the waste heat of the synthetic gas that the utility model provides a kind of more Appropriate application ammonia synthesis converter to export.
To achieve these goals, the technical solution of the utility model is as follows: a kind of ammonia synthesis converter waste heat recycling system, comprise ammonia synthesis converter, it is characterized in that: the syngas outlet of described ammonia synthesis converter is connected with the synthetic gas inlet mouth of synthesis medium pressure boiler, described synthesis medium pressure boiler middle pressure steam out removes heat-exchanged reformer through middle pressure steam pipe network, the synthetic gas air outlet of described synthesis medium pressure boiler is connected with the synthetic gas inlet mouth of synthesis time medium pressure boiler, the described synthesis time synthetic gas air outlet of medium pressure boiler is connected with the thermal source import of feed water preheater, feedwater after described feed water preheater preheating exports to synthesis medium pressure boiler and synthesis time medium pressure boiler through feedwater, the thermal source outlet of described feed water preheater is connected with the thermal source import of turnover tower interchanger, circulation gas through the preheating of described turnover tower interchanger enters ammonia synthesis converter and reacts.
In such scheme: the steam of described synthesis time medium pressure boiler enters time middle pressure steam pipe network.
Adopt such scheme, ammonia synthesis converter synthetic gas out (temperature 380-400 DEG C), through synthesis medium pressure boiler, produces middle pressure steam (3.5-4.2MPaG, 240-255 DEG C), for process steam.First enter synthesis time medium pressure boiler from synthesis medium pressure boiler synthetic gas out, produce time middle pressure steam (2.2-2.5MPaG, 220-226 DEG C), outer defeated.Then synthetic gas enters feed water preheater, carries out preheating to boiler feed water.Last synthetic gas enters turnover tower interchanger, enters ammonia synthesis converter after the hydrogen in circulation gas and nitrogen are carried out preheating, and last synthetic gas anhydrates cooler, synthetic gas is carried out to the subsequent operationss such as refrigerated separation purification.By the middle pressure steam produced the utilization of synthetic ammonia synthetic gas waste heat, go heat-exchanged reformer to produce hydrogen as process steam, reach the object of the abundant Appropriate application of waste heat.Ensure the steady running of production system, energy-saving and emission-reduction.
Beneficial effect: the synthetic gas of ammonia synthesis converter is passed through synthesis medium pressure boiler, synthesis time medium pressure boiler, feed water preheater and turnover tower interchanger by the utility model successively, the waste heat of synthetic gas is adequately and reasonably used, for whole ammonia synthesis technology provides process steam, ensure the steady running of ammonia synthesis technology, play the effect of energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Embodiment 1, as shown in Figure 1: ammonia synthesis converter waste heat recycling system of the present utility model is made up of parts such as ammonia synthesis converter 1, synthesis medium pressure boiler 2, synthesis time medium pressure boiler 3, feed water preheater 4, turnover tower interchanger 5, heat-exchanged reformer 6, secondary middle pressure steam pipe network 7, middle pressure steam pipe networks 8.
The structure of ammonia synthesis converter 1 is prior art, does not repeat at this.
The structure of synthesis medium pressure boiler 2 and synthesis time medium pressure boiler 3 is also boiler of the prior art, and synthesis medium pressure boiler 2 is different with the pressure of the generation steam that synthesis time medium pressure boiler 3 sets.
The syngas outlet of ammonia synthesis converter 1 is connected with the synthetic gas inlet mouth of synthesis medium pressure boiler 2, the waste heat of the synthetic gas of ammonia synthesis converter 1 is utilized to heat the water in synthesis medium pressure boiler 2, produce middle pressure steam (3.5-4.2MPaG, 240-255 DEG C), synthesis medium pressure boiler 2 middle pressure steam out removes heat-exchanged reformer 6 through middle pressure steam pipe network 8, react with Sweet natural gas in heat-exchanged reformer 6 and generate hydrogen, carbon monoxide and carbonic acid gas, the synthetic gas air outlet of synthesis medium pressure boiler 2 is connected with the synthetic gas inlet mouth of synthesis time medium pressure boiler 3, the waste heat of synthetic gas continues to heat the water in synthesis time medium pressure boiler 3, secondary middle pressure steam (the 2.2-2.5MPaG of synthesis time medium pressure boiler 3, 220-226 DEG C) enter time middle pressure steam pipe network 7, this time middle pressure steam is outer defeated.The synthesis time synthetic gas air outlet of medium pressure boiler 3 is connected with the thermal source import of feed water preheater 4, now synthetic gas enters feedwater heat retrieving apparatus 4, preheating is carried out to water, feedwater after feed water preheater 4 preheating through hot water outlet to synthesis medium pressure boiler 2 and synthesis time medium pressure boiler 3, the thermal source outlet of feed water preheater 4 is connected with the thermal source import of turnover tower interchanger 5, synthetic gas enters turnover tower interchanger 5 again, carry out preheating to the hydrogen in circulation gas and nitrogen, the hydrogen in the circulation gas of turnover tower interchanger 5 preheating and nitrogen enter ammonia synthesis converter 1 and react.
The utility model is not limited to above-mentioned specific embodiment, should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.In a word, all technician in the art according to design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should by the determined protection domain of claims.
Claims (2)
1. an ammonia synthesis converter waste heat recycling system, comprise ammonia synthesis converter (1), it is characterized in that: the syngas outlet of described ammonia synthesis converter (1) is connected with the synthetic gas inlet mouth of synthesis medium pressure boiler (2), described synthesis medium pressure boiler (2) middle pressure steam out removes heat-exchanged reformer (6) through middle pressure steam pipe network, the synthetic gas air outlet of described synthesis medium pressure boiler (2) is connected with the synthetic gas inlet mouth of synthesis time medium pressure boiler (3), the synthetic gas air outlet of described synthesis time medium pressure boiler (3) is connected with the thermal source import of feed water preheater (4), feedwater after described feed water preheater (4) preheating exports to synthesis medium pressure boiler (2) and synthesis time medium pressure boiler (3) through feedwater, the thermal source outlet of described feed water preheater (4) is connected with the thermal source import of turnover tower interchanger (5), circulation gas through the preheating of described turnover tower interchanger (5) enters ammonia synthesis converter (1) and reacts.
2. ammonia synthesis converter waste heat recycling system according to claim 1, is characterized in that: the steam of described synthesis time medium pressure boiler (3) enters middle pressure steam pipe network (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520661480.6U CN204848289U (en) | 2015-08-28 | 2015-08-28 | Ammonia converter waste heat recovery utilizes system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520661480.6U CN204848289U (en) | 2015-08-28 | 2015-08-28 | Ammonia converter waste heat recovery utilizes system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204848289U true CN204848289U (en) | 2015-12-09 |
Family
ID=54738861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520661480.6U Active CN204848289U (en) | 2015-08-28 | 2015-08-28 | Ammonia converter waste heat recovery utilizes system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204848289U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021132126A1 (en) * | 2019-12-25 | 2021-07-01 | 三菱重工業株式会社 | Ammonia derivative production plant and production method for ammonia derivative |
| CN116239127A (en) * | 2023-02-15 | 2023-06-09 | 中国成达工程有限公司 | A kind of synthetic ammonia thermal standby process and synthesis tower |
-
2015
- 2015-08-28 CN CN201520661480.6U patent/CN204848289U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021132126A1 (en) * | 2019-12-25 | 2021-07-01 | 三菱重工業株式会社 | Ammonia derivative production plant and production method for ammonia derivative |
| JP2021102532A (en) * | 2019-12-25 | 2021-07-15 | 三菱重工業株式会社 | Plant for producing ammonia derivative and method for producing ammonia derivative |
| JP7353163B2 (en) | 2019-12-25 | 2023-09-29 | 三菱重工業株式会社 | Ammonia derivative manufacturing plant and ammonia derivative manufacturing method |
| CN116239127A (en) * | 2023-02-15 | 2023-06-09 | 中国成达工程有限公司 | A kind of synthetic ammonia thermal standby process and synthesis tower |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106185984B (en) | System for jointly producing ammonia and nitric acid based on steam electrolysis method | |
| CN105508051B (en) | High-temperature gas-cooled reactor helium gas indirect cyclic process hydrogen manufacturing coupled electricity-generation system and method | |
| CN105905869B (en) | A kind of coal hydrogen manufacturing CO converts Poly-generation method and device | |
| CN107777662A (en) | A kind of lighter hydrocarbons combine the method for hydrogen manufacturing with methanol | |
| CN204848289U (en) | Ammonia converter waste heat recovery utilizes system | |
| CN102337161B (en) | Low water-to-gas ratio serial saturation tower and hot water tower CO conversion process | |
| CN210150715U (en) | Natural gas steam reforming hydrogen production device | |
| CN109095438B (en) | A biomass multi-stage conversion combined hydrogen production device and its working method | |
| CN211078472U (en) | Device for improving sulfur recovery efficiency | |
| CN218154402U (en) | Device for synthesizing low-temperature heat recovery for heating and refrigeration | |
| CN110436413B (en) | Biogas and solar complementary two-stage synthesis gas preparation system and method | |
| CN210419867U (en) | Coal industry accuse temperature transform coproduction electric energy system | |
| CN107880959A (en) | Chemical chain reforms methane system processed | |
| CN202465266U (en) | System for increasing decarbonized gas temperature of inlet of synthetic ammonia methanation furnace | |
| CN220772003U (en) | Chemical energy storage system | |
| CN220958438U (en) | System for desulfurization and denitrification exhaust-heat boiler combines tedge superheated steam | |
| CN223004963U (en) | A conversion gas waste heat recovery and utilization system | |
| CN104743511A (en) | Process method for converting and cooling CO gas by virtue of CO gas conversion and cooling device | |
| CN222773268U (en) | Conversion gas heat recovery device | |
| CN214032356U (en) | Energy-saving sulfur-tolerant shift system | |
| CN203959839U (en) | A kind of Ammonia Production device by utilizing waste heat recovery system | |
| CN222574335U (en) | Flue gas self-heat-exchange sulfuric acid low-pressure steam production efficiency optimization system | |
| CN217340122U (en) | Heat recovery system of coal-to-hydrogen conversion stripping system | |
| CN202709072U (en) | Novel residual heat recycling system for methane chloride device | |
| CN107973270A (en) | A kind of coke-stove gas mends carbon conversion preparing ethylene glycol synthesis gas process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |