CN216259937U - Novel prevent blockking up and handle desulfurization decarbonization methanol-water separation tower - Google Patents
Novel prevent blockking up and handle desulfurization decarbonization methanol-water separation tower Download PDFInfo
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- CN216259937U CN216259937U CN202121582013.6U CN202121582013U CN216259937U CN 216259937 U CN216259937 U CN 216259937U CN 202121582013 U CN202121582013 U CN 202121582013U CN 216259937 U CN216259937 U CN 216259937U
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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
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- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model discloses a novel anti-blocking treatment desulfurization and decarburization methanol-water separation tower, which comprises a methanol filtering feeding pipeline, a methanol-water separation tower and a methanol-carbon dioxide flash tank, wherein the methanol filtering feeding pipeline comprises a methanol-water separation tower feeding heater which is connected with the methanol-carbon dioxide flash tank, and methanol and poor methanol are introduced into the methanol filtering feeding pipeline; the alkali adding pipeline comprises an alkali adding groove, and the alkali adding groove is connected with a washing water pipe; the methanol-water separation tower is communicated with the methanol filtering feeding pipeline and the alkali adding pipeline. After the filter and the alkali adding device are additionally arranged, the PH value in the tower is controlled to be about 8-10 through the alkali adding amount, so that the problem that methanol and other organic matters and other substances generate polymers in an acidic environment is solved, meanwhile, the filter can be filtered through a newly added filter when the original filter is overhauled, the filtering effect of poor methanol is stabilized, and the operation effect of the methanol-water separation tower is obviously improved.
Description
Technical Field
The utility model relates to the technical field of low-temperature methanol washing, in particular to a novel anti-blocking treatment desulfurization and decarburization methanol-water separation tower.
Background
A working section for eluting carbon dioxide, carbon oxysulfide and hydrogen sulfide from low-temperature methanol, wherein the subsequent working section has strict requirements on outlet purified gas, and the purified gas does not reach the standard and influences the safe and stable operation of the subsequent working section; the filter is arranged at the inlet of the methanol-poor-methanol-to-methanol-water separator in the conventional design, but the requirement cannot be met, coal ash dirt and oil stain in the methanol are combined, a hard complex is formed and tightly attached to a tower tray and the wall of the tower under the action of high temperature in the tower, and the cleaning is difficult to carry out only by changing the temperature and the pressure.
The methanol liquid is in an acidic state, and under the action of sulfur ions, the inner wall of a pipeline of the equipment is easily corroded, iron-containing salt substances are formed, tower plates are blocked, the operation of a methanol-water separation tower is influenced, the water removal capacity is reduced, and the poor methanol is not high in purity. The problem is generally existed in the low-temperature methanol washing methanol water separation tower at the present stage.
SUMMERY OF THE UTILITY MODEL
This section is for the purpose of summarizing some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the utility model.
In order to solve the technical problems, the utility model provides the following technical scheme: a novel anti-clogging treatment desulfurization and decarburization methanol-water separation tower comprises a methanol filtering feeding pipeline, a methanol-water separation tower and a methanol-carbon dioxide flash tank, wherein the methanol filtering feeding pipeline comprises a methanol-water separation tower feeding heater which is connected with the methanol-carbon dioxide flash tank, and methanol and lean methanol are introduced into the methanol filtering feeding pipeline; the alkali adding pipeline comprises an alkali adding groove, and the alkali adding groove is connected with a washing water pipe; the methanol-water separation tower is communicated with the methanol filtering feeding pipeline and the alkali adding pipeline.
As a preferred scheme of the novel anti-clogging treatment desulfurization decarbonization methanol-water separation tower, the method comprises the following steps: and a poor methanol filter is arranged at a poor methanol inlet of the methanol filtering and feeding pipeline.
As a preferred scheme of the novel anti-clogging treatment desulfurization decarbonization methanol-water separation tower, the method comprises the following steps: the lean methanol filters are arranged in parallel.
As a preferred scheme of the novel anti-clogging treatment desulfurization decarbonization methanol-water separation tower, the method comprises the following steps: the methanol filtering and feeding pipeline is provided with a high-precision filter and is connected with the methanol carbon dioxide flash tank.
As a preferred scheme of the novel anti-clogging treatment desulfurization decarbonization methanol-water separation tower, the method comprises the following steps: and the alkali liquor in the alkali adding groove is conveyed to the washing water pipe through an alkali adding pump.
As a preferred scheme of the novel anti-clogging treatment desulfurization decarbonization methanol-water separation tower, the method comprises the following steps: the methanol-water separation tower body is provided with at least 3 pH acquisition points and a pH calculation module for calculating the average pH value of the 3 pH acquisition points.
As a preferred scheme of the novel anti-clogging treatment desulfurization decarbonization methanol-water separation tower, the method comprises the following steps: the pH calculation module transmits the average pH value to the pH controller.
As a preferred scheme of the novel anti-clogging treatment desulfurization decarbonization methanol-water separation tower, the method comprises the following steps: and the alkali adding pipeline is provided with an alkali liquor flow controller.
As a preferred scheme of the novel anti-clogging treatment desulfurization decarbonization methanol-water separation tower, the method comprises the following steps: the high-precision filter adopts a 10-micron precision filter.
The utility model has the beneficial effects that: after the filter and the alkali adding device are additionally arranged, the PH value in the tower is controlled to be about 8-10 through the alkali adding amount, so that the problem that methanol and other organic matters and other substances generate polymers in an acidic environment is solved, meanwhile, the filter can be newly added for filtering during maintenance of an original filter, the filtering effect of poor methanol is stabilized, the operation effect of the methanol-water separation tower is remarkably improved, the risk of blockage of a wound heat exchanger is reduced, and the phenomenon of liquid stagnation of an absorption tower, an analysis tower and a regeneration tower is reduced. The system is stabilized in methanol circulation, and the absorption effect of methanol is improved, so that the purified gas index is qualified.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1, for the first embodiment of the present invention, this embodiment provides a novel anti-clogging desulfurization and decarbonization methanol-water separation tower, which includes a methanol filtration feed line 100, including a methanol-water separation tower feed heater 101, the methanol-water separation tower feed heater 101 is connected to a methanol-carbon dioxide flash tank 102, methanol and lean methanol are introduced into the methanol filtration feed line 100, and the methanol and lean methanol introduced into the methanol filtration feed line 100 are processed by the methanol-water separation tower feed heater 101 and the methanol-carbon dioxide flash tank 102 and then introduced into a methanol-water separation tower 300; the alkali adding pipeline 200 comprises an alkali adding tank 201, the alkali adding tank 201 is connected with a washing water pipe 202, and alkali adding liquid in the alkali adding tank 201 is introduced into the methanol-water separation tower 300 through the washing water pipe 202; the methanol-water separation column 300, the methanol filtration feed line 100 and the alkali addition line 200 are connected to the methanol-water separation column 300.
Through adding alkali pipeline 200 at former methanol-water separation tower 300 newly for the acidic condition of methanol liquid is eliminated to rising tower internal pH value, prevents to corrode equipment and pipeline inner wall, prevents that impurity from taking place the complex reaction on the tray under acidic condition, blocks up the column plate, guarantees good running state and the separation efficiency of methanol-water separation tower 300.
Example 2
Referring to fig. 1, a second embodiment of the present invention, which is different from the first embodiment, is: the poor methanol filter 103 is arranged at the poor methanol inlet of the methanol filtering and feeding pipeline 100, and the poor methanol filter 103 is mainly used for filtering impurities such as coal ash dirt, oil stain and the like in the poor methanol to ensure that the feeding of the poor methanol is clean. The lean methanol filters 103 are arranged in parallel, and the two groups of lean methanol filters 103 connected in parallel can be opened to increase the filtration flow rate of lean methanol or one group of lean methanol filters 103 can be opened, so that the filtration process of lean methanol is not influenced while the other group of lean methanol filters 103 is cleaned or maintained.
Further, methanol filters feed line 100 and is provided with high accuracy filter 104, be connected with methyl alcohol carbon dioxide flash tank 102, high accuracy filter 104 is used for filtering the methyl alcohol that gets into in methanol-water separation tower 300, guarantee that the feeding of methyl alcohol is clean, if smuggle coal ash dirt and greasy dirt combination secretly in the methyl alcohol, receive the effect of high temperature in the tower under, form hard complex and tightly attach to the tray, on the tower wall, it changes temperature pressure to rely on alone, hardly clear up, thereby guarantee clean and the steady operation of whole device, effectively prevent that methanol-water separation tower 300 from blockking up.
Further, the alkali liquor in the alkali adding tank 201 is conveyed to the washing water pipe 202 through the alkali adding pump 203, under the action of the alkali adding pump 203, the alkali liquor in the alkali adding tank 201 enters the washing water pipe 202 and is conveyed to the methanol-water separation tower 300, the PH value in the alkali liquor control tower is about 8-10, the generation of polymers of methanol and other organic matters and the like in an acid environment is effectively prevented, the inner wall of an equipment pipeline is corroded, iron-containing salt substances are formed, a tower plate is blocked, the operation of the methanol-water separation tower 300 is influenced, the water removal capacity is reduced, the purity of methanol is not high, the stable and efficient work of the methanol-water separation tower 300 is ensured, the absorption effect of the methanol is improved, the purified gas index is ensured to be qualified, and the quality of poor methanol is stabilized.
Example 3
Referring to fig. 1, a third embodiment of the present invention, which differs from the first two embodiments, is shown: the tower body of the methanol-water separation tower 300 is provided with at least 3 pH acquisition points and a pH calculation module TY for calculating the average pH value of the 3 pH acquisition points, the tower body of the methanol-water separation tower 300 is provided with 3 pH acquisition points (pH001, pH002 and pH003) for acquiring the pH values of different positions in the tower, the acquired pH values are transmitted to the pH calculation module TY, and the pH calculation module TY calculates the average pH value. The pH calculation module TY transmits the average pH value to the pH controller TC, and the pH controller TC controls the alkali liquor flow controller FC in a cascade mode according to the received average pH value, controls the flow of the alkali liquor added into the methanol-water separation tower 300, and prevents the methanol-water separation tower 300 from being too high in acidity. The alkali adding pipe 200 is provided with an alkali liquid flow controller FC.
The pH values of different positions of the methanol-water separation tower 300 are collected, the average value is calculated and transmitted to the pH controller TC, the pH controller TC controls the alkali liquor flow controller FC on the alkali adding pipeline 200 according to the received average pH value in a cascade mode, the alkali liquor flow rate of the methanol-water separation tower 300 is controlled, the pH value in the tower is accurately controlled to be about 8-10, and therefore the situation that substances such as methanol and other organic matters generate polymers under an acidic environment is effectively prevented, the inner wall of a pipeline of equipment is corroded, iron-containing salt substances are formed, tower plates are blocked, and the operation of the methanol-water separation tower is influenced.
The high-precision filter 104 adopts a 10 micron precision filter, the high-precision filter 104 is used for filtering methanol entering the methanol-water separation tower 300, the feeding cleanness of the methanol is ensured, if coal ash dirt and oil dirt are mixed in the methanol, a hard complex is formed under the action of high temperature in the tower and is tightly attached to a tower tray and a tower wall, and the cleaning is difficult only by changing the temperature and the pressure.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (9)
1. The utility model provides a novel prevent blockking up and handle desulfurization decarbonization methanol-water knockout tower which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the methanol filtering and feeding pipeline (100) comprises a methanol-water separation tower feeding heater (101), the methanol-water separation tower feeding heater (101) is connected with a methanol-carbon dioxide flash tank (102), and methanol and poor methanol are introduced into the methanol filtering and feeding pipeline (100);
the alkali adding pipeline (200) comprises an alkali adding tank (201), and the alkali adding tank (201) is connected with a washing water pipe (202);
the methanol-water separation tower (300), the methanol filtering feeding pipeline (100) and the alkali adding pipeline (200) are communicated with the methanol-water separation tower (300).
2. The novel anti-clogging desulfurization decarbonization methanol-water separation tower of claim 1, which is characterized in that: and a poor methanol filter (103) is arranged at a poor methanol inlet of the methanol filtering feeding pipeline (100).
3. The novel anti-clogging desulfurization decarbonization methanol-water separation tower of claim 2, which is characterized in that: the lean methanol filters (103) are arranged in two groups in parallel.
4. A novel anti-clogging processing desulfurization decarbonization methanol-water separation tower as claimed in any one of claims 1 to 3, characterized in that: the methanol filtering and feeding pipeline (100) is provided with a high-precision filter (104) which is connected with the methanol-carbon dioxide flash tank (102).
5. The novel anti-clogging desulfurization decarbonization methanol-water separation tower of claim 4, which is characterized in that: and the alkali liquor in the alkali adding tank (201) is conveyed to the washing water pipe (202) through an alkali adding pump (203).
6. A novel anti-clogging processing desulfurization decarbonization methanol-water separation tower as claimed in any one of claims 1 to 3 and 5, characterized in that: the tower body of the methanol-water separation tower (300) is provided with at least 3 pH acquisition points and a pH calculation module (TY) for calculating the average pH value of the 3 pH acquisition points.
7. The novel anti-clogging desulfurization decarbonization methanol-water separation tower of claim 6, which is characterized in that: the pH calculation module (TY) transmits the average pH value to the pH controller (TC).
8. The novel anti-clogging desulfurization decarbonization methanol-water separation tower of claim 7, which is characterized in that: the alkali adding pipeline (200) is provided with an alkali liquor Flow Controller (FC).
9. The novel anti-clogging desulfurization decarbonization methanol-water separation tower of claim 5, which is characterized in that: the high-precision filter (104) adopts a 10-micron precision filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121582013.6U CN216259937U (en) | 2021-07-12 | 2021-07-12 | Novel prevent blockking up and handle desulfurization decarbonization methanol-water separation tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121582013.6U CN216259937U (en) | 2021-07-12 | 2021-07-12 | Novel prevent blockking up and handle desulfurization decarbonization methanol-water separation tower |
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| CN216259937U true CN216259937U (en) | 2022-04-12 |
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| CN202121582013.6U Active CN216259937U (en) | 2021-07-12 | 2021-07-12 | Novel prevent blockking up and handle desulfurization decarbonization methanol-water separation tower |
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- 2021-07-12 CN CN202121582013.6U patent/CN216259937U/en active Active
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