CN212800020U - Energy-saving phenol ammonia recovery unit - Google Patents
Energy-saving phenol ammonia recovery unit Download PDFInfo
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- CN212800020U CN212800020U CN202021923129.7U CN202021923129U CN212800020U CN 212800020 U CN212800020 U CN 212800020U CN 202021923129 U CN202021923129 U CN 202021923129U CN 212800020 U CN212800020 U CN 212800020U
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Abstract
The utility model discloses an energy-saving phenol ammonia recovery device, wherein a deamination tower reboiler and a deamination tower coupling reboiler are symmetrically arranged at the bottom of a deamination tower, and the bottom of the deamination tower is connected with an extraction tower; the water tower reboiler and the water tower coupling reboiler are symmetrically arranged at the bottom of the water tower, the top of the water tower is connected with the water tower top condenser, the water tower top condenser is connected with the solvent recovery tank, and the solvent recovery tank is connected with the lower part of the extraction tower; the top of the extraction tower is connected with the middle upper part of the crude phenol tower, and the bottom of the extraction tower is connected with the upper part of the water tower; a crude phenol tower reboiler is arranged at the bottom of the crude phenol tower, and the top of the crude phenol tower is connected with the upper parts of the deamination tower coupling reboiler and the water tower coupling reboiler respectively; the lower parts of the deamination tower coupling reboiler and the water tower coupling reboiler are connected with a condensate tank; the condensate tank is respectively connected with the solvent tank and the crude phenol tower part. The utility model discloses utilize water tower, deamination tower to carry out the coupling, be used for the material heating with heat recovery, both practiced thrift steam, practiced thrift the circulating water again, show the consumption that reduces the device.
Description
Technical Field
The utility model belongs to energy saving and consumption reduction field especially relates to an energy-saving phenol ammonia recovery unit.
Background
The existing phenol ammonia recovery device generally adopts MIBK (methyl isobutyl ketone) for extracting phenol, the ratio of phenol-containing waste water to MIBK is about 2:1 in actual operation, and the system inevitably completely vaporizes MIBK, carried water and other substances with low boiling points in order to obtain a crude phenol product, and is cooled by cooling water at the tower top, so that a large amount of heat is wasted.
Patent CN102259943B discloses an energy-saving phenol ammonia wastewater recovery treatment method, which realizes the step comprehensive utilization of heat source by the coupling of equipment among a deamination tower, a deacidification tower and a water tower. In the process, the heat of the solvent and the light components at the top of the crude phenol tower is taken away by circulating water, and the recycling of the part of heat is not realized.
Disclosure of Invention
The utility model aims at solving the problem, the utility model aims at providing an energy-saving phenol ammonia recovery unit, it is reasonable to adopt the device technology, and waste heat utilization is abundant, moves the safety and stability.
The purpose of the utility model is realized like this:
an energy-saving phenol ammonia recovery device is characterized by comprising a deamination tower, a deamination tower reboiler, a deamination tower coupling reboiler, an extraction tower, a crude phenol tower reboiler, a crude phenol tower, a water tower reboiler, a water tower coupling reboiler, a water tower top condenser, a solvent tank and a condensate tank; a deamination tower reboiler and a deamination tower coupling reboiler are symmetrically arranged at the bottom of the deamination tower, and the bottom of the deamination tower is connected with an extraction tower; the water tower reboiler and the water tower coupling reboiler are symmetrically arranged at the bottom of the water tower, the top of the water tower is connected with the water tower top condenser, the water tower top condenser is connected with the solvent recovery tank, and the solvent recovery tank is connected with the lower part of the extraction tower; the top of the extraction tower is connected with the middle upper part of the crude phenol tower, and the bottom of the extraction tower is connected with the upper part of the water tower; a crude phenol tower reboiler is arranged at the bottom of the crude phenol tower, and the top of the crude phenol tower is connected with the upper parts of the deamination tower coupling reboiler and the water tower coupling reboiler respectively; the lower parts of the deamination tower coupling reboiler and the water tower coupling reboiler are connected with a condensate tank; the condensate tank is respectively connected with the solvent tank and the crude phenol tower part.
Preferably, the deamination tower adopts a packed tower, a plate tower or a mixed structure tower combining the packed tower and the plate tower, the operation pressure is 0-50KPaG, and the operation temperature is 30-100 ℃;
preferably, the operation pressure of the crude phenol tower is 0-50KPaG, and the operation temperature is 100-230 ℃;
preferably, the water tower is operated at a pressure of 0 to 50KPaG and at a temperature of 40 to 110 ℃;
preferably, the pipeline connecting the top of the crude phenol tower with the upper parts of the deamination tower coupling reboiler and the water tower coupling reboiler is provided with an adjusting valve. A crude phenol outlet is arranged at the bottom of the crude phenol tower; the bottom of the water tower is provided with a waste water outlet.
The utility model discloses utilize partial heat and water tower, deamination tower to carry out the coupling, be used for the material heating with heat recovery, both practiced thrift steam, practiced thrift the circulating water again, show the consumption of reducing mechanism.
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 effectively reduce the steam and the cooling water consumption of device. Meanwhile, the device can be transformed on similar devices, the operation cost of the device is reduced, and the economic benefit is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Illustration of the drawings: 1. deamination tower, 2, deamination tower reboiler, 3, deamination tower coupling reboiler, 4, extraction tower, 5, crude phenol tower reboiler, 6, crude phenol tower, 7, water tower, 8, water tower reboiler, 9, water tower coupling reboiler, 10, water tower top of the tower condenser, 11, solvent pot, 12, condensate tank.
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 utility model provides an energy-saving phenol ammonia recovery unit, includes deamination tower 1, deamination tower reboiler 2, deamination tower coupling reboiler 3, extraction tower 4, crude phenol tower reboiler 5, crude phenol tower 6, water tower 7, water tower reboiler 8, water tower coupling reboiler 9, water tower top of the tower condenser 10, solvent tank 11, condensate tank 12. The device is characterized in that a deamination tower reboiler 2 and a deamination tower coupling reboiler 3 are symmetrically arranged at the bottom of the deamination tower 1, and the bottom of the deamination tower is connected with an extraction tower 4 through a pipeline; a water tower reboiler 8 and a water tower coupling reboiler 9 are symmetrically arranged at the bottom of the water tower 7, the top of the water tower is connected with a water tower top condenser 10 through a pipeline, the water tower top condenser 10 is connected with a solvent recovery tank 11 through a pipeline, and the solvent recovery tank 11 is connected with the lower part of the extraction tower 4 through a pipeline; the top of the extraction tower 4 is connected with the middle upper part of the crude phenol tower 6 through a pipeline, and the bottom of the extraction tower is connected with the upper part of the water tower through a pipeline; the bottom of the crude phenol tower 6 is provided with a crude phenol tower reboiler 5, and the top of the crude phenol tower 6 is respectively connected with the upper parts of a deamination tower coupling reboiler 3 and a water tower coupling reboiler 9 through pipelines; the lower parts of the deamination tower coupling reboiler 3 and the water tower coupling reboiler 9 are connected with a condensate tank 12 through pipelines, and the condensate tank 12 is respectively connected with the top of the solvent tank 11 and the top of the crude phenol tower 6 through pipelines.
The deacidified process wastewater enters from the upper part of the top 1 of the deamination tower, ammonia is produced at the top, the operating pressure is 0-50KPaG, the temperature is 30-100 ℃, a reboiler 2 of the deamination tower is heated by steam to supplement heat, process water extracted from the bottom of the deamination tower is sent to an extraction tower 4 to carry out reverse mass transfer with an extractant, an extraction phase is extracted from the top of the deamination tower, and a water phase is extracted from the bottom of the deamination tower.
The extraction phase extracted from the extraction tower 4 enters a crude phenol tower 6, light components such as solvent, water and the like are obtained at the tower top and are respectively sent to a deamination tower coupling reboiler 3 and a water tower coupling reboiler 9 to provide heat, the heat is condensed and then sent to a condensate tank 12, one part of liquid in the condensate tank 12 is sent to a solvent tank 11, the other part of the liquid returns to the crude phenol tower 6 to be used as reflux, the operation pressure of the crude phenol tower is 0-50KPaG, the temperature is 100-.
The water phase extracted from the extraction tower 4 enters a water tower 7, the operation pressure is 0-50KPaG, and the operation temperature is 40-110 ℃. The water tower reboiler 8 adopts steam for heating, the solvent extracted from the tower top enters a solvent tank 11 after being condensed by a water tower top condenser 10, and the solvent tank sends the extracting agent to the extraction tower for continuous use. The wastewater extracted from the bottom of the water tower is sent to biochemical treatment.
The utility model discloses the requirement is carried not considered in the relation of connection that expresses, because of carrying the machine pump that needs increase etc. not show. The stated top, upper, etc. positions are device interface positions.
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 (6)
1. An energy-saving phenol ammonia recovery device is characterized by comprising a deamination tower (1), a deamination tower reboiler (2), a deamination tower coupling reboiler (3), an extraction tower (4), a crude phenol tower reboiler (5), a crude phenol tower (6), a water tower (7), a water tower reboiler (8), a water tower coupling reboiler (9), a water tower top condenser (10), a solvent tank (11) and a condensate tank (12); the deamination tower reboiler (2) and the deamination tower coupling reboiler (3) are symmetrically arranged at the bottom of the deamination tower (1), and the bottom of the deamination tower is connected with the extraction tower (4); the water tower reboiler (8) and the water tower coupling reboiler (9) are symmetrically arranged at the bottom of the water tower (7), the top of the water tower is connected with the water tower top condenser (10), the water tower top condenser (10) is connected with the solvent tank (11), and the solvent tank (11) is connected with the lower part of the extraction tower (4); the top of the extraction tower (4) is connected with the middle upper part of the crude phenol tower (6), and the bottom is connected with the upper part of the water tower; a crude phenol tower reboiler (5) is arranged at the bottom of the crude phenol tower (6), and the top of the crude phenol tower is respectively connected with the upper parts of the deamination tower coupling reboiler (3) and the water tower coupling reboiler (9); the lower parts of the deamination tower coupling reboiler (3) and the water tower coupling reboiler (9) are connected with a condensate tank (12); the condensate tank (12) is respectively connected with the solvent tank (11) and the top of the crude phenol tower (6).
2. The energy-saving phenol ammonia recovery device according to claim 1, wherein the deamination tower (1) adopts a packed tower, a plate tower or a combined tower of the packed tower and the plate tower, the operating pressure is 0-50KPaG, and the operating temperature is 30-100 ℃.
3. The energy-saving phenol ammonia recovery device as claimed in claim 1, wherein the crude phenol column (6) is operated at 0-50KPaG and at 100-230 ℃.
4. The energy-saving phenol ammonia recovery device according to claim 1, wherein the water tower (7) is operated at a pressure of 0-50KPaG and at a temperature of 40-110 ℃.
5. The energy-saving phenol-ammonia recovery device according to claim 1, wherein the pipeline connecting the top of the crude phenol tower (6) with the upper parts of the deamination tower coupling reboiler (3) and the water tower coupling reboiler (9) is provided with an adjusting valve.
6. The energy-saving phenol ammonia recovery device according to claim 1, wherein a crude phenol outlet is arranged at the bottom of the crude phenol tower (6); a waste water outlet is arranged at the bottom of the water tower (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021923129.7U CN212800020U (en) | 2020-09-07 | 2020-09-07 | Energy-saving phenol ammonia recovery unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021923129.7U CN212800020U (en) | 2020-09-07 | 2020-09-07 | Energy-saving phenol ammonia recovery unit |
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| CN212800020U true CN212800020U (en) | 2021-03-26 |
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| CN202021923129.7U Active CN212800020U (en) | 2020-09-07 | 2020-09-07 | Energy-saving phenol ammonia recovery unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111908697A (en) * | 2020-09-07 | 2020-11-10 | 查都（上海）科技有限公司 | Energy-saving phenol ammonia recovery unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111908697A (en) * | 2020-09-07 | 2020-11-10 | 查都（上海）科技有限公司 | Energy-saving phenol ammonia recovery unit |
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