CN212299543U - Waste heat utilization device of phenol ammonia recovery system - Google Patents
Waste heat utilization device of phenol ammonia recovery system Download PDFInfo
- Publication number
- CN212299543U CN212299543U CN202021066558.7U CN202021066558U CN212299543U CN 212299543 U CN212299543 U CN 212299543U CN 202021066558 U CN202021066558 U CN 202021066558U CN 212299543 U CN212299543 U CN 212299543U
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- China
- Prior art keywords
- heat exchanger
- tower
- ammonia recovery
- phenol
- pipeline
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- 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.)
- Withdrawn - After Issue
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 33
- 239000002918 waste heat Substances 0.000 title claims abstract description 21
- XABJJJZIQNZSIM-UHFFFAOYSA-N azane;phenol Chemical compound [NH4+].[O-]C1=CC=CC=C1 XABJJJZIQNZSIM-UHFFFAOYSA-N 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 30
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000002904 solvent Substances 0.000 claims abstract description 18
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 15
- 239000002253 acid Substances 0.000 claims abstract description 14
- 238000000605 extraction Methods 0.000 claims abstract description 13
- 230000002378 acidificating effect Effects 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000002407 reforming Methods 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 3
- 239000000571 coke Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000000844 transformation Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Images
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
-
- 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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- Physical Water Treatments (AREA)
Abstract
The waste heat utilization device of the phenol ammonia recovery system comprises the phenol ammonia recovery device and the waste heat utilization device, wherein the phenol ammonia recovery device comprises a transverse pipe cooler, an acid water stripping tower, an ammonia recovery system, a crude phenol extraction tower, a solvent circulation system, a crude phenol product tower and a raffinate treatment tower; the waste heat utilization device includes hot water circulating system, first heat exchanger, second heat exchanger, third heat exchanger, fourth heat exchanger, refrigerating system, the utility model discloses compact structure, reasonable in process, waste heat utilization is abundant, can reach energy-conservation and carry the purpose of imitating, can realize reforming transform on similar device simultaneously, reduces device running cost, improves economic benefits.
Description
Technical Field
The utility model belongs to energy saving and consumption reduction field especially relates to a phenol ammonia recovery system's waste heat utilization equipment
Background
The coal dry distillation is a common method for quality improvement and comprehensive utilization of low-rank coal, the raw coke oven gas formed by coal dry distillation has complex components and contains pollutants such as ammonia, carbon dioxide, phenol mixture, hydrogen sulfide and the like, and after condensation and separation, the quality of the raw coke oven gas is improved, and the comprehensive utilization has higher economic value. The phenol ammonia recovery device usually uses coupling to reduce energy consumption, but only a single set of device is considered during coupling, so that the heat is not fully utilized, and the redundant heat is taken away by circulating water, thereby wasting heat and cold.
SUMMERY OF THE UTILITY MODEL
The utility model aims at achieving the purpose, and provides a waste heat utilization device of a phenol ammonia recovery system, which has reasonable process, sufficient waste heat utilization and safe and stable operation.
The purpose of the utility model is realized like this:
the waste heat utilization device of the phenol ammonia recovery system comprises the phenol ammonia recovery device and the waste heat utilization device, wherein the phenol ammonia recovery device comprises a transverse pipe cooler, an acid water stripping tower, an ammonia recovery system, a crude phenol extraction tower, a solvent circulation system, a crude phenol product tower and a raffinate treatment tower; the waste heat utilization device comprises a hot water circulating system, a first heat exchanger, a second heat exchanger, a third heat exchanger, a fourth heat exchanger and a refrigerating system;
the horizontal pipe cooler is connected with an acid water stripping tower through a pipeline, the bottom of the acid water stripping tower is connected with an extraction tower through a pipeline, the top of the acid water stripping tower is connected with an acid gas discharge pipeline, the side wall of the acid water stripping tower is connected with an ammonia recovery system through a pipeline, the top of the crude phenol extraction tower is connected with a crude phenol product tower through a pipeline, the bottom of the crude phenol extraction tower is connected with a raffinate treatment tower through a pipeline, the tops of the crude phenol product tower and the raffinate treatment tower are both connected with a solvent circulation system through pipelines, and the solvent circulation system is connected with the crude phenol extraction tower through a pipeline;
the first heat exchanger is arranged between the acidic water stripping tower and the ammonia recovery system, the acidic water stripping tower and the ammonia recovery system are connected with the first heat exchanger through pipelines, the second heat exchanger is connected with the top of the crude phenol product tower and the solvent circulation system through pipelines, the third heat exchanger is connected with the top of the raffinate treatment tower and the solvent circulation system through pipelines, and the bottom of the raffinate treatment tower is connected with the fourth heat exchanger through a pipeline;
the hot water circulating system is connected with the first heat exchanger, the second heat exchanger, the third heat exchanger, the fourth heat exchanger and the refrigerating system through pipelines;
the refrigeration system is respectively connected with the ammonia recovery system, the transverse pipe cooler and the external system through pipelines.
Further, the material temperatures of the middle part of the acidic water stripping tower, the top of the crude phenol product tower and the bottom of the raffinate treatment tower, which are connected with the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger, are all higher than 60 ℃.
Furthermore, the hot water circulation system, the first heat exchanger, the second heat exchanger, the third heat exchanger, the fourth heat exchanger, the refrigeration system and any one of the external systems can form an independent circulation pipeline.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses compact structure, reasonable in process, waste heat utilization is abundant, can reach energy-conserving purpose of carrying the effect. Meanwhile, the transformation on similar devices can be realized, the running cost of the device is reduced, and the economic benefit is improved.
Drawings
Fig. 1 is a schematic flow chart of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The waste heat utilization device of the phenol ammonia recovery system comprises the phenol ammonia recovery device and the waste heat utilization device, wherein the phenol ammonia recovery device comprises a transverse pipe cooler, an acid water stripping tower, an ammonia recovery system, a crude phenol extraction tower, a solvent circulation system, a crude phenol product tower and a raffinate treatment tower; the waste heat utilization device comprises a hot water circulation system, a first heat exchanger, a second heat exchanger, a third heat exchanger, a fourth heat exchanger and a refrigerating system.
The horizontal pipe cooler is used for condensing phenol, oil, water and other substances in the raw gas, sending the condensed phenol, oil, water and other substances into the acidic water stripping tower after oil-water separation, recovering heat of crude ammonia (140-. The removed solvent is cooled to a proper temperature according to actual needs after the heat of the solvent is recovered by the second heat exchanger, and then enters a solvent circulating system. And the raffinate of the crude phenol extraction tower enters a raffinate treatment tower, the operation temperature of the top of the raffinate treatment tower is about 100 ℃, the heat of the solvent recovered from the top of the raffinate treatment tower is recovered by a third heat exchanger and then is sent to a solvent circulation system, the operation temperature of the bottom of the raffinate treatment tower is about 160 ℃, and the heat of the solvent recovered from the top of the raffinate treatment tower is sent to the subsequent process after being recovered by a fourth heat exchanger.
The first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger use water as a refrigerant to recover heat, the obtained hot water is sent to the refrigerating system for utilization through the hot water circulating system, and then is sent to the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger through the hot water circulating system to continue to recover heat. The refrigeration system can generate low-temperature water with the temperature of 12-15 ℃, and one part of the low-temperature water is sent to the horizontal pipe cooler to improve the condensation effect, improve the quality of the raw coke oven gas and simultaneously improve the load of phenol ammonia recovery, further improve the available residual heat and improve the economy; part of low-temperature water is used for fractional condensation of ammonia recovery, so that the consumption of public works is reduced; the low temperature water surplus portion may be made available to external systems, such as staff dormitories.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.
Claims (3)
1. The waste heat utilization device of the phenol ammonia recovery system is characterized by comprising a phenol ammonia recovery device and a waste heat utilization device, wherein the phenol ammonia recovery device comprises a horizontal pipe cooler, an acid water stripping tower, an ammonia recovery system, a crude phenol extraction tower, a solvent circulation system, a crude phenol product tower and a raffinate treatment tower; the waste heat utilization device comprises a hot water circulating system, a first heat exchanger, a second heat exchanger, a third heat exchanger, a fourth heat exchanger and a refrigerating system;
the horizontal pipe cooler is connected with an acid water stripping tower through a pipeline, the bottom of the acid water stripping tower is connected with a crude phenol extraction tower through a pipeline, the top of the acid water stripping tower is connected with an acid gas discharge pipeline, the side wall of the acid water stripping tower is connected with an ammonia recovery system through a pipeline, the top of the crude phenol extraction tower is connected with a crude phenol product tower through a pipeline, the bottom of the crude phenol extraction tower is connected with a raffinate treatment tower through a pipeline, the tops of the crude phenol product tower and the raffinate treatment tower are both connected with a solvent circulation system through pipelines, and the solvent circulation system is connected with the crude phenol extraction tower through a pipeline;
the first heat exchanger is arranged between the acidic water stripping tower and the ammonia recovery system, the acidic water stripping tower and the ammonia recovery system are connected with the first heat exchanger through pipelines, the second heat exchanger is connected with the top of the crude phenol product tower and the solvent circulation system through pipelines, the third heat exchanger is connected with the top of the raffinate treatment tower and the solvent circulation system through pipelines, and the bottom of the raffinate treatment tower is connected with the fourth heat exchanger through a pipeline;
the hot water circulating system is connected with the first heat exchanger, the second heat exchanger, the third heat exchanger, the fourth heat exchanger and the refrigerating system through pipelines;
the refrigeration system is respectively connected with the ammonia recovery system, the transverse pipe cooler and the external system through pipelines.
2. The waste heat utilization device of the phenol ammonia recovery system according to claim 1, characterized in that: the temperature of the materials in the middle of the acidic water stripping tower, at the top of the crude phenol product tower and at the bottom of the raffinate treatment tower, which are connected with the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger, is higher than 60 ℃.
3. The waste heat utilization device of the phenol ammonia recovery system according to claim 1, characterized in that: the hot water circulation system and any one of the first heat exchanger, the second heat exchanger, the third heat exchanger, the fourth heat exchanger, the refrigeration system and the external system can form an independent circulation pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021066558.7U CN212299543U (en) | 2020-06-10 | 2020-06-10 | Waste heat utilization device of phenol ammonia recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021066558.7U CN212299543U (en) | 2020-06-10 | 2020-06-10 | Waste heat utilization device of phenol ammonia recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212299543U true CN212299543U (en) | 2021-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021066558.7U Withdrawn - After Issue CN212299543U (en) | 2020-06-10 | 2020-06-10 | Waste heat utilization device of phenol ammonia recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212299543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811163A (en) * | 2020-06-10 | 2020-10-23 | 查都（上海）科技有限公司 | Waste heat utilization device of phenol ammonia recovery system |
-
2020
- 2020-06-10 CN CN202021066558.7U patent/CN212299543U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811163A (en) * | 2020-06-10 | 2020-10-23 | 查都（上海）科技有限公司 | Waste heat utilization device of phenol ammonia recovery system |
| CN111811163B (en) * | 2020-06-10 | 2024-06-07 | 查都(海南)科技有限公司 | A waste heat utilization device for phenol-ammonia recovery system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 570000 No. a5002-323, A1 area, Fuxing City, 32 Binhai Avenue, Longhua District, Haikou City, Hainan Province Patentee after: Chadu (Hainan) Technology Co.,Ltd. Address before: Part 541, 5A / F, building B, 155 Fute West 1st Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Patentee before: CHADU (SHANGHAI) TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210105 Effective date of abandoning: 20240607 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20210105 Effective date of abandoning: 20240607 |