CN212030020U - Carbon monoxide separation and purification device - Google Patents
Carbon monoxide separation and purification device Download PDFInfo
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- CN212030020U CN212030020U CN202020686241.7U CN202020686241U CN212030020U CN 212030020 U CN212030020 U CN 212030020U CN 202020686241 U CN202020686241 U CN 202020686241U CN 212030020 U CN212030020 U CN 212030020U
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- heat exchanger
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- gas
- carbon monoxide
- tower
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Links
- 238000000926 separation method Methods 0.000 title claims abstract description 37
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910002091 carbon monoxide Inorganic materials 0.000 title claims abstract description 34
- 238000000746 purification Methods 0.000 title claims abstract description 30
- 239000007789 gas Substances 0.000 claims abstract description 66
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000001816 cooling Methods 0.000 claims abstract description 30
- 239000000126 substance Substances 0.000 claims abstract description 30
- 239000007791 liquid phase Substances 0.000 claims abstract description 14
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 239000012071 phase Substances 0.000 claims abstract description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 238000003889 chemical engineering Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000007792 gaseous phase Substances 0.000 description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 229910001873 dinitrogen Inorganic materials 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000003034 coal gas Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
- F25J3/0233—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of CnHm with 1 carbon atom or more
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
- F25J3/0252—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of hydrogen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
- F25J3/0257—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of nitrogen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
- F25J3/0261—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of carbon monoxide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/40—Features relating to the provision of boil-up in the bottom of a column
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/74—Refluxing the column with at least a part of the partially condensed overhead gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/02—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum
- F25J2205/04—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum in the feed line, i.e. upstream of the fractionation step
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/02—Internal refrigeration with liquid vaporising loop
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/24—Quasi-closed internal or closed external carbon monoxide refrigeration cycle
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The utility model discloses a carbon monoxide separation purification device includes: the first heat exchanger is used for cooling the chemical tail gas; the second heat exchanger is used for cooling the cooled chemical tail gas again; the third heat exchanger is used for cooling the chemical tail gas after being cooled again for three times; the gas-liquid separator is used for carrying out liquefaction separation on the chemical tail gas after the three-time cooling so as to separate a gas-phase material and a liquid-phase material from the chemical tail gas; the first rectifying tower is used for rectifying and separating the liquid-phase material to separate a methane-rich component and a gas component from the liquid-phase material; and the second rectifying tower is used for rectifying the gas components to separate nitrogen-rich gas and CO products from the gas components and is connected with the first rectifying tower through a pipeline. The technical scheme of the utility model advantage is: the tail gas of the chemical device can be purified, the device is simple, the energy consumption is low, the investment is saved, and the utilization value of the tail gas is also improved.
Description
Technical Field
The utility model relates to an energy utilization field especially relates to a carbon monoxide separation and purification device.
Technical Field
At present, in the coal chemical industry production, a large amount of coal gas rich in CO components can be generated, and the gas can be used as fuel gas and can also be used as raw materials for synthesizing methanol, ethylene glycol and other industries, so that a gas source rich in CO in the coal chemical industry is recycled, CO is purified and recovered, the utilization value of tail gas is greatly increased, and in addition, the coal gas is also a key raw material of chemicals such as methanol and the like.
Therefore, the utility model provides a CO separation and purification device.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a carbon monoxide separation and purification device that can carry out recycle with the gaseous air supply that is rich in CO in the coal chemical industry.
The utility model discloses a carbon monoxide separation and purification device, include:
the first heat exchanger is used for cooling the chemical tail gas;
the second heat exchanger is used for cooling the cooled chemical tail gas again and is connected with the first heat exchanger through a pipeline;
the third heat exchanger is used for carrying out tertiary cooling on the chemical tail gas after secondary cooling and is connected with the second heat exchanger through a pipeline;
the gas-liquid separator is used for carrying out liquefaction separation on the chemical tail gas after the chemical tail gas is cooled for three times, so that the chemical tail gas is separated into gas-phase materials and liquid-phase materials, and is connected with the third heat exchanger through a pipeline;
the first rectifying tower is used for rectifying and separating the liquid-phase material to separate a methane-rich component and a gas component from the liquid-phase material and is connected with the gas-liquid separator through a pipeline;
and the second rectifying tower is used for rectifying the gas components to separate nitrogen-rich gas and CO products from the gas components and is connected with the first rectifying tower through a pipeline.
The utility model discloses a carbon monoxide separation and purification device, wherein, vapour and liquid separator's gaseous phase material mouth is connected with gaseous phase material discharge pipe, gaseous phase material discharge pipe passes through third heat exchanger, second heat exchanger, first heat exchanger in proper order, so that gaseous phase material rewarming is rich hydrogen.
The utility model discloses a carbon monoxide separation and purification device, wherein, the second heat exchanger passes through first tube coupling with first heat exchanger, first pipeline is through the heat exchanger at the bottom of the tower of first rectifying column to make the chemical industry tail gas after the cooling get into the cooling of second heat exchanger after the heat exchanger at the bottom of the tower of first rectifying column cools off.
The utility model discloses a carbon monoxide separation and purification device, wherein, the rich nitrogen gas mouth and the rich nitrogen discharge pipe of second rectifying column are connected, the rich nitrogen discharge pipe passes through third heat exchanger, second heat exchanger, first heat exchanger in proper order, so that discharge after the rich nitrogen rewarming.
The utility model discloses a carbon monoxide separation and purification device, wherein, the CO discharge port and the CO output tube connection at the bottom of the tower of second rectifying column, the CO output tube passes through the top of the tower condenser of second rectifying column, install the choke valve on the CO output tube to make the CO product in the CO output tube provide cold volume for the top of the tower condenser of second rectifying column after the throttle cooling step-down.
The utility model discloses a carbon monoxide separation and purification device, wherein, the CO output tube is connected with the first air inlet of compressor through third heat exchanger, second heat exchanger, first heat exchanger in proper order behind the overhead condenser, the first gas outlet and the second tube coupling of compressor, the second pipeline is connected through the entry linkage of first heat exchanger, second heat exchanger, third heat exchanger and first choke valve in proper order, the export and the third tube coupling of first choke valve, and the third pipeline is through third heat exchanger and CO output tube connection to input the compressor after the CO product that makes the CO output tube rewarming in third heat exchanger, second heat exchanger, first heat exchanger, after the compressor internal compression, the CO product is throttled and is cooled down and provide cold volume for the third heat exchanger after cooling down in first heat exchanger, second heat exchanger, third heat exchanger.
The utility model discloses a carbon monoxide separation and purification device, wherein, the second pipeline is connected with the fourth pipeline, the tie point of second pipeline and fourth pipeline is located between the entry of third heat exchanger and first choke valve, the entry linkage of fourth pipeline and third choke valve, the export and the fifth tube coupling of third choke valve, the fifth pipeline is connected with the second air inlet of compressor through the overhead condenser of first rectifying column, third heat exchanger, second heat exchanger, first heat exchanger to provide cold volume for third heat exchanger, second heat exchanger, first heat exchanger after making the interior CO product throttle cooling of fifth pipeline.
The utility model discloses a carbon monoxide separation and purification device, wherein, the second pipeline is connected with the sixth pipeline, the tie point of second pipeline and sixth pipeline is located between the entry of third heat exchanger and first choke valve, the entry linkage of sixth pipeline and second choke valve, the export of second choke valve and the top of the tower condenser of second rectifying column are connected to provide cold volume for the top of the tower condenser of second rectifying column after making the CO product throttle cooling in the sixth pipeline.
The technical scheme of the utility model advantage is: the tail gas of the chemical device can be purified, the device is simple, the energy consumption is low, the investment is saved, and the utilization value of the tail gas is also improved.
Drawings
Fig. 1 is a schematic structural diagram of the carbon monoxide separation and purification device of the present invention.
Detailed Description
As shown in fig. 1, the carbon monoxide separation and purification device of the present invention comprises:
the utility model discloses a carbon monoxide separation and purification device, include:
the first heat exchanger E1 is used for cooling the chemical engineering tail gas;
the second heat exchanger E2 is used for cooling the cooled chemical tail gas again and is connected with the first heat exchanger through a pipeline;
the third heat exchanger E3 is used for cooling the chemical tail gas after being cooled again for three times and is connected with the second heat exchanger through a pipeline;
the gas-liquid separator V10 is used for carrying out liquefaction separation on the chemical tail gas after the three-time cooling so as to separate a gas-phase material and a liquid-phase material from the chemical tail gas, and is connected with the third heat exchanger through a pipeline;
the first rectifying tower T1 is used for rectifying and separating the liquid-phase material to separate a methane-rich component and a gas component from the liquid-phase material and is connected with the gas-liquid separator through a pipeline;
and the second rectifying tower T2 is used for rectifying the gas components to separate the nitrogen-rich gas and the CO products from the gas components and is connected with the first rectifying tower through a pipeline.
The utility model discloses a carbon monoxide separation and purification device, wherein, vapour and liquid separator's gaseous phase material mouth is connected with gaseous phase material discharge pipe, gaseous phase material discharge pipe passes through third heat exchanger, second heat exchanger, first heat exchanger in proper order, so that gaseous phase material rewarming is rich hydrogen.
The utility model discloses a carbon monoxide separation and purification device, wherein, the second heat exchanger is connected through first pipeline 1 with first heat exchanger, first pipeline is through heat exchanger E6 at the bottom of the tower of first rectifying column to make the chemical industry tail gas after the cooling get into the cooling of second heat exchanger after the heat exchanger cools off at the bottom of the tower of first rectifying column.
The utility model discloses a carbon monoxide separation and purification device, wherein, the rich nitrogen gas mouth and the rich nitrogen gas discharge pipe of second rectifying column T2 are connected, the rich nitrogen gas discharge pipe passes through third heat exchanger, second heat exchanger, first heat exchanger in proper order, so that discharge after the compound temperature of rich nitrogen gas.
The utility model discloses a carbon monoxide separation and purification device, wherein, the CO discharge port and the CO output tube 100 at the bottom of the tower of second rectifying column are connected, the CO output tube passes through the top of the tower condenser E5 of second rectifying column, install the choke valve on the CO output tube to make the CO product in the CO output tube after the throttle cooling step-down, provide cold volume for the top of the tower condenser of second rectifying column.
The utility model relates to a carbon monoxide separation and purification device, wherein, a CO output pipe 100 passes through a tower top condenser E5 and then sequentially passes through a third heat exchanger, a second heat exchanger and a first heat exchanger to be connected with a first air inlet of a compressor C1, a first air outlet of the compressor is connected with a second pipeline 2, the second pipeline 2 is connected with an inlet of a first throttling valve V1 through a first heat exchanger, a second heat exchanger and a third heat exchanger in sequence, an outlet of the first throttling valve is connected with a third pipeline 3, the third pipeline 3 is connected with a CO output pipe 100 through the third heat exchanger, so that the CO product of the CO output pipe is input into the compressor after being reheated in the third heat exchanger, the second heat exchanger and the first heat exchanger, after being compressed in the compressor, the CO product is throttled and cooled in the first heat exchanger, the second heat exchanger and the third heat exchanger to provide cold energy for the third heat exchanger.
The utility model discloses a carbon monoxide separation and purification device, wherein, second pipeline 2 is connected with fourth pipeline 4, the tie point of second pipeline and fourth pipeline is located between the entry of third heat exchanger and first choke valve, fourth pipeline 4 and third choke valve V3's entry linkage, the export and the fifth pipeline 5 of third choke valve are connected, and the fifth pipeline is connected with the second air inlet of compressor through the overhead condenser E4 of first rectifying column, third heat exchanger, second heat exchanger, first heat exchanger to provide cold volume for third heat exchanger, second heat exchanger, first heat exchanger after making the interior CO product throttle cooling of fifth pipeline.
The utility model discloses a carbon monoxide separation and purification device, wherein, second pipeline 2 is connected with sixth pipeline 6, the tie point of second pipeline and sixth pipeline is located between the entry of third heat exchanger and first choke valve, sixth pipeline 6 and second choke valve V2's entry linkage, the export of second choke valve is connected with the overhead condenser E5 of second rectifying column to provide cold volume for the overhead condenser of second rectifying column after making the CO product throttle cooling in the sixth pipeline.
The utility model discloses a carbon monoxide separation and purification device, wherein, second pipeline 2 is connected with input pipeline 200, the tie point of second pipeline and input pipeline 200 is located between third heat exchanger and the second heat exchanger, input pipeline 200 passes through the heat exchanger at the bottom of the second rectifying column.
The technical scheme of the utility model advantage is: the tail gas of the chemical device can be purified, the device is simple, the energy consumption is low, the investment is saved, and the utilization value of the tail gas is also improved.
The utility model discloses a carbon monoxide separation and purification device is in operation, and the feed gas that comes from the boundary region gets into first heat exchanger E1, the tower bottom heat exchanger E6 of first rectifying column, second heat exchanger E2, third heat exchanger E3 cooling back, gets into vapour and liquid separator V10, and the separation is given vent to anger looks material and liquid phase material, and the gaseous phase material gets out this device after heat exchanger heat transfer rewarming, is rich hydrogen; the separated liquid phase material enters a first rectifying tower T1 for rectification separation, a methane-rich component is obtained at the tower bottom, the methane gas is discharged from the device after the temperature recovery of the heat exchanger, a gas component obtained at the tower top enters a second rectifying tower T2, a high-purity CO product is obtained at the tower bottom, after throttling, temperature reduction and pressure reduction, cold energy is provided for the tower top of the rectifying tower, the cold energy is recovered through the heat exchanger, the cold energy enters a compressor, the main component of the gas phase component at the tower top is nitrogen, and the nitrogen gas is discharged from the device after the temperature recovery of the heat exchanger.
The device has the characteristics of good separation effect, low energy consumption, low equipment investment and the like.
The heat exchanger can be a plate-fin heat exchanger or a wound tube heat exchanger.
The compressor may be a turbine, screw, or piston compressor.
The raw material gas component contains the combination of any components of nitrogen, carbon monoxide, methane, C2, C3, C4 and C5.
The rectifying tower can be in a packing type, a plate type or a sieve plate type.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A carbon monoxide separation and purification device is characterized by comprising:
the first heat exchanger is used for cooling the chemical tail gas;
the second heat exchanger is used for cooling the cooled chemical tail gas again and is connected with the first heat exchanger through a pipeline;
the third heat exchanger is used for carrying out tertiary cooling on the chemical tail gas after secondary cooling and is connected with the second heat exchanger through a pipeline;
the gas-liquid separator is used for carrying out liquefaction separation on the chemical tail gas after the chemical tail gas is cooled for three times, so that the chemical tail gas is separated into gas-phase materials and liquid-phase materials, and is connected with the third heat exchanger through a pipeline;
the first rectifying tower is used for rectifying and separating the liquid-phase material to separate a methane-rich component and a gas component from the liquid-phase material and is connected with the gas-liquid separator through a pipeline;
and the second rectifying tower is used for rectifying the gas components to separate nitrogen-rich gas and CO products from the gas components and is connected with the first rectifying tower through a pipeline.
2. The carbon monoxide separating and purifying device as claimed in claim 1, wherein the gas phase material port of the gas-liquid separator is connected with a gas phase material discharge pipe, and the gas phase material discharge pipe passes through the third heat exchanger, the second heat exchanger and the first heat exchanger in sequence so as to rewarming the gas phase material into hydrogen-rich gas.
3. The carbon monoxide separating and purifying device as claimed in claim 2, wherein the second heat exchanger is connected with the first heat exchanger through a first pipeline, and the first pipeline passes through the tower bottom heat exchanger of the first rectifying tower, so that the cooled chemical engineering tail gas enters the second heat exchanger for cooling after being cooled by the tower bottom heat exchanger of the first rectifying tower.
4. The carbon monoxide separating and purifying device as claimed in claim 3, wherein the nitrogen-rich gas port of the second rectifying column is connected with a nitrogen-rich gas discharge pipe, and the nitrogen-rich gas discharge pipe passes through the third heat exchanger, the second heat exchanger and the first heat exchanger in sequence so as to discharge the nitrogen-rich gas after the temperature of the nitrogen-rich gas is restored.
5. The carbon monoxide separation and purification device as claimed in claim 4, wherein the CO outlet at the bottom of the second rectification tower is connected with a CO output pipe, the CO output pipe passes through the tower top condenser of the second rectification tower, and a throttle valve is arranged on the CO output pipe, so that the CO product in the CO output pipe can provide cold energy for the tower top condenser of the second rectification tower after throttling, cooling and depressurizing.
6. The carbon monoxide separation and purification device of claim 5, wherein the CO output pipe passes through the overhead condenser and then sequentially passes through the third heat exchanger, the second heat exchanger, the first heat exchanger and the first air inlet of the compressor, a first air outlet of the compressor is connected with a second pipeline, the second pipeline is connected with an inlet of a first throttling valve through a first heat exchanger, a second heat exchanger and a third heat exchanger in sequence, an outlet of the first throttling valve is connected with a third pipeline, the third pipeline is connected with a CO output pipe through the third heat exchanger, so that the CO product of the CO output pipe is input into the compressor after being reheated in the third heat exchanger, the second heat exchanger and the first heat exchanger, after being compressed in the compressor, the CO product is throttled and cooled in the first heat exchanger, the second heat exchanger and the third heat exchanger to provide cold energy for the third heat exchanger.
7. The carbon monoxide separation and purification device according to claim 6, wherein the second pipeline is connected with a fourth pipeline, the connection point of the second pipeline and the fourth pipeline is located between the third heat exchanger and the inlet of the first throttle valve, the fourth pipeline is connected with the inlet of the third throttle valve, the outlet of the third throttle valve is connected with a fifth pipeline, and the fifth pipeline is connected with the second air inlet of the compressor through the overhead condenser of the first rectifying tower, the third heat exchanger, the second heat exchanger and the first heat exchanger, so that the CO product in the fifth pipeline is throttled and cooled to provide cold for the third heat exchanger, the second heat exchanger and the first heat exchanger.
8. The carbon monoxide separating and purifying device as recited in claim 7, wherein the second pipeline is connected with a sixth pipeline, the connection point of the second pipeline and the sixth pipeline is located between the third heat exchanger and the inlet of the first throttle valve, the sixth pipeline is connected with the inlet of the second throttle valve, and the outlet of the second throttle valve is connected with the overhead condenser of the second rectifying tower, so that the CO product in the sixth pipeline is throttled and cooled to provide cold for the overhead condenser of the second rectifying tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020686241.7U CN212030020U (en) | 2020-04-29 | 2020-04-29 | Carbon monoxide separation and purification device |
Applications Claiming Priority (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111397307A (en) * | 2020-04-29 | 2020-07-10 | 中科瑞奥能源科技股份有限公司 | Carbon monoxide separation and purification device and carbon monoxide separation and purification process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111397307A (en) * | 2020-04-29 | 2020-07-10 | 中科瑞奥能源科技股份有限公司 | Carbon monoxide separation and purification device and carbon monoxide separation and purification process |
| CN111397307B (en) * | 2020-04-29 | 2024-04-05 | 中科瑞奥能源科技股份有限公司 | Carbon monoxide separation and purification device and carbon monoxide separation and purification process |
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