CN201447362U - Nitric acid production equipment system - Google Patents
Nitric acid production equipment system Download PDFInfo
- Publication number
- CN201447362U CN201447362U CN200920030235XU CN200920030235U CN201447362U CN 201447362 U CN201447362 U CN 201447362U CN 200920030235X U CN200920030235X U CN 200920030235XU CN 200920030235 U CN200920030235 U CN 200920030235U CN 201447362 U CN201447362 U CN 201447362U
- Authority
- CN
- China
- Prior art keywords
- nitric acid
- turbine device
- tail gas
- ammonia
- acid production
- 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
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Classifications
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- 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
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A nitric acid production equipment system belongs to nitric acid preparation technical field and comprises a liquid nitrogen evaporator, a gas ammonia filter, an ammonia air mixer, an oxidation furnace, an acid absorption tower connected sequentially, and is characterized in that the oxidation furnace is connected with a waste heat boiler, a heat exchanger and a nitric oxide compressor in series, the waste heat boiler is connected with a steam turbine device through a steam pipeline, and the steam turbine device is connected with an air compressor; the tail gas pipeline of the heat exchanger is connected with a tail gas turbine device, and the tail gas turbine device is connected with the nitric oxide compressor. The nitric acid production equipment system reasonably utilizes the reaction heat of ammonia oxidation reaction and the reaction heat of acid absorption, utilizes the energy generated during nitric acid production process in levels, realizes the energy optimization and improves the energy utilization rate.
Description
Technical field
The utility model belongs to the nitric acid production field, is specifically related to a kind of nitric acid production device systems.
Background technology
Nitric acid is a kind of important basic chemical industry raw material, is widely used in numerous areas such as chemical industry, pharmaceutical industries, dyestuffs industries, plastics industry, national defense industry, metallurgical industry.
The nitric acid production principle is that ammonia is generated nitrogen protoxide with the air catalytic oxidation under based on the netted platinum alloy catalyst of platinum, then nitrogen protoxide further is oxidized to nitrogen peroxide, and last water absorbs nitrogen peroxide and makes nitric acid.
The deficiency that tradition nitric acid production technology exists mainly is: energy utilization rate is low, and product yield is low, more than the tail gas nitrogen oxide concentration 1100ppm, discharge not up to standard, the comprehensive energy consumption height, environmental protection pressure is big, causes product cost to occupy height.
Summary of the invention
The utility model provides a kind of nitric acid production device systems, the nitric acid production system is carried out energy-optimised, enhances productivity, and cuts down the consumption of energy.
The following technical scheme of the concrete employing of the utility model:
A kind of nitric acid production device systems, comprise placed in-line successively liquefied ammonia vaporizer, gas ammonia strainer, the empty mixing tank of ammonia, oxidized still, acid absorption column, it is characterized in that, be connected in series waste heat boiler, interchanger and oxynitride compressor behind the oxidized still, waste heat boiler is connected with steam turbine device by vapour line, and steam turbine device connects with air compressor; Interchanger tail gas pipeline is connected with the tail gas turbine device, and the tail gas turbine device connects with the oxynitride compressor.
Heat in the utility model reasonable use oxidative ammonolysis heat and sour absorption reaction heat and the total system process makes the energy cascade utilization in the nitric acid production process, realizes energy-optimisedly, improves capacity usage ratio; Press oxidation and nitrogen oxide high pressure to absorb in the synthetic ammonia, the oxidation ratio of ammonia reaches 98%, and the nitrogen oxide specific absorption reaches 99%, and production efficiency significantly improves.
Description of drawings
Fig. 1 is the utility model equipment connection diagram;
Among the figure, 1-liquefied ammonia vaporizer, 2-gas ammonia strainer, the empty mixing tank 4-of 3-ammonia air compressor, 5-steam turbine device, 6-oxynitride compressor, 7-oxidized still, 8-waste heat boiler, 9-tail gas turbine device, 10-interchanger, 11-acid absorption column.
Embodiment
Embodiment
A kind of nitric acid production device systems, comprise placed in-line successively liquefied ammonia vaporizer 1, gas ammonia strainer 2, the empty mixing tank 3 of ammonia, oxidized still 7, waste heat boiler 8, interchanger 10, oxynitride compressor 6, acid absorption column 11, waste heat boiler 8 is connected with steam turbine 5 devices by vapour line, vapor temperature is 450 ℃, pressure is 3.82MPa, steam turbine device 5 connects with air compressor 4, for air compressor 5 provides power; Interchanger 10 tail gas pipelines are connected with tail gas turbine device 9, and tail gas turbine device 9 connects with oxynitride compressor 6, for compressor provides power.
General, be provided with circulation line between liquefied ammonia vaporizer 1 and the acid absorption column 11, with liquefied ammonia cooling acid absorption column 11 tops.
Claims (1)
1. nitric acid production device systems, comprise placed in-line successively liquefied ammonia vaporizer, gas ammonia strainer, the empty mixing tank of ammonia, oxidized still, acid absorption column, it is characterized in that, be connected in series waste heat boiler, interchanger and oxynitride compressor behind the oxidized still, waste heat boiler is connected with steam turbine device by vapour line, and steam turbine device connects with air compressor; Interchanger tail gas pipeline is connected with the tail gas turbine device, and the tail gas turbine device connects with the oxynitride compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920030235XU CN201447362U (en) | 2009-07-31 | 2009-07-31 | Nitric acid production equipment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920030235XU CN201447362U (en) | 2009-07-31 | 2009-07-31 | Nitric acid production equipment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201447362U true CN201447362U (en) | 2010-05-05 |
Family
ID=42552078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920030235XU Expired - Fee Related CN201447362U (en) | 2009-07-31 | 2009-07-31 | Nitric acid production equipment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201447362U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212280A (en) * | 2012-08-14 | 2013-07-24 | 襄阳泽东化工有限公司 | Heat recovery system for high temperature flue gas at ammoxidation section |
| CN105217585A (en) * | 2014-06-04 | 2016-01-06 | 贵州芭田生态工程有限公司 | Double pressurized method nitric acid production plant |
| CN107233811A (en) * | 2017-07-25 | 2017-10-10 | 天津阿奇森环保技术有限公司 | A kind of ammonia atomising device |
| CN107243265A (en) * | 2017-07-25 | 2017-10-13 | 天津阿奇森环保技术有限公司 | A kind of ammonia blender |
-
2009
- 2009-07-31 CN CN200920030235XU patent/CN201447362U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212280A (en) * | 2012-08-14 | 2013-07-24 | 襄阳泽东化工有限公司 | Heat recovery system for high temperature flue gas at ammoxidation section |
| CN105217585A (en) * | 2014-06-04 | 2016-01-06 | 贵州芭田生态工程有限公司 | Double pressurized method nitric acid production plant |
| CN105217585B (en) * | 2014-06-04 | 2017-06-23 | 贵州芭田生态工程有限公司 | Double pressurized method nitric acid production plant |
| CN107233811A (en) * | 2017-07-25 | 2017-10-10 | 天津阿奇森环保技术有限公司 | A kind of ammonia atomising device |
| CN107243265A (en) * | 2017-07-25 | 2017-10-13 | 天津阿奇森环保技术有限公司 | A kind of ammonia blender |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20110731 |