Carbon recovery treatment device for ship

Abstract

The invention discloses a carbon recovery treatment device for a ship, and relates to the technical field of carbon recovery. The system comprises a flue gas manufacturing module, a pretreatment module, an absorption module, a desorption module, a condensation module, a drying module, a liquefaction module and a storage module, the absorption module comprises a barren liquor tank and a rich liquor tank; an adsorbent is stored in the barren solution tank; a decarburizing agent is stored in the rich liquid tank; an air inlet pipe and an air outlet pipe are respectively fixed on the rich liquid tank in a penetrating manner; the rich liquid tank is communicated with the desorption module; a liquid inlet pipe and a liquid outlet pipe are respectively fixed on the barren liquid tank in a penetrating manner; the liquid inlet pipe is communicated with the desorption module; the liquid outlet pipe is communicated with the interior of the rich liquid tank; and the liquid outlet pipe extends into the adsorbent liquid. Ammonia water is adopted as an absorbent, and the following chemical characteristics of the ammonia water are utilized: # imgabs0 is used for absorbing CO2 in flue gas, and a byproduct ammonium bicarbonate can be generated through reaction in the CO2 trapping process of ammonia gas and directly used as an agricultural fertilizer, so that the problem of ammonia escape in the decarburization process is solved, and certain economic benefits can be generated.

Description

Technical Field

[0001] The invention belongs to the technical field of carbon recovery, and in particular relates to a carbon recovery and processing device for ships. Background Art

[0002] Carbon dioxide (CO2), as the main greenhouse gas, has become the culprit of global warming. The urgency of emission reduction has become increasingly prominent, and a series of international shipping carbon emission reduction measures have gradually entered the mandatory implementation stage. Carbon capture technology is considered to be the most direct and effective carbon emission reduction technology. The mainstream technologies of carbon capture include chemical adsorption, physical adsorption, adsorption separation, membrane separation, biological carbon fixation, etc. Chemical adsorption is a technical path that is more suitable for ships.

[0003] At present, the research and application of ship exhaust carbon capture technology is still in its infancy, and a large amount of in-depth targeted research is urgently needed. Most of the existing carbon capture devices separate the CO2 in the flue gas and then discharge the flue gas into the atmosphere. However, the separated CO2 is not separated for storage and utilization. At the same time, the carbon capture reagents cannot be recycled and reused, which increases costs and violates the concept of environmental protection.

[0004] To this end, we provide a carbon recovery and processing device for ships to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a carbon recovery and processing device for ships, which uses ammonia water as an absorbent and utilizes the following chemical properties of ammonia water: The CO2 in the flue gas is absorbed and processed. During the process of ammonia capturing CO2, it can react to generate by-product ammonium bicarbonate which can be directly used as agricultural fertilizer. This not only solves the problem of ammonia escape during the decarbonization process, but also can produce certain economic benefits. It solves the problem that the existing carbon capture device does not separate CO2 for storage and utilization. At the same time, the carbon capture reagents cannot be recycled and reused, which increases costs and violates the concept of environmental protection.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention relates to a carbon recovery and treatment device for ships, comprising a flue gas manufacturing module, a pretreatment module, an absorption module, a desorption module, a condensation module, a drying module, a liquefaction module and a storage module; the absorption module comprises a lean liquid tank and a rich liquid tank which are internally connected; an adsorbent is stored in the lean liquid tank; the main component of the adsorbent is ammonia water; a decarbonizing agent is stored in the rich liquid tank; the main component of the decarbonizing agent is ammonia water after absorbing CO2; an air inlet pipe and an air outlet pipe are respectively passed through and fixed on the rich liquid tank; the air inlet pipe is connected to the pretreatment module; the air outlet pipe is connected to the outside atmosphere; the air inlet pipe extends into the decarbonizing agent liquid; the rich liquid tank is connected to the desorption module; an inlet pipe and a liquid outlet pipe are respectively passed through and fixed on the lean liquid tank; the liquid inlet pipe is connected to the desorption module; the liquid outlet pipe is connected to the inside of the rich liquid tank; the liquid outlet pipe extends into the adsorbent liquid.

[0008] The present invention is further configured as follows: the smoke manufacturing module includes a main engine, a generator and an induced draft fan; the induced draft fan is respectively provided with an air inlet pipe and an air outlet pipe; the air inlet pipe is connected to the main engine and the generator; the air outlet pipe is connected to the pretreatment module.

[0009] The present invention is further configured as follows: the pretreatment module includes a flue gas scrubber and a flue gas scrubber pump; the water suction end of the flue gas scrubber pump is connected to anhydrous alcohol, and its water outlet end is connected to the inside of the flue gas scrubber; the flue gas scrubber is used to process solid particles and impurities in the flue gas; the gas outlet end of the flue gas scrubber is connected to the air inlet pipe; the gas outlet end of the flue gas scrubber is provided with a speed sensor and a concentration detector; the speed sensor is used to detect the gas flow rate; the concentration detector is used to detect the CO2 concentration.

[0010] The present invention is further configured as follows: the desorption module includes a desorber and a heater; the desorber is used to separate the CO2 in the decarbonizer; a recovery pipe is connected between the desorber and the liquid inlet pipe; a liquid suction pipe is connected between the desorber and the rich liquid tank; the liquid suction pipe runs through the interior of the heater; the desorber is connected to the condensation module.

[0011] The present invention is further configured as follows: the condensation module comprises a condenser; the condenser is used to condense the CO2 separated by the desorber; the air inlet end of the condenser is connected to the desorber, and the air outlet end thereof is connected to the drying module. .

[0012] The present invention is further configured as follows: the drying module includes a dryer; the dryer is used to remove excess moisture in the CO2 gas; the air inlet end of the dryer is connected to the condenser, and the air outlet end thereof is connected to the liquefaction module.

[0013] The present invention is further configured as follows: the liquefaction module includes a liquefier; the liquefier is used to liquefy CO2; the air inlet end of the liquefier is connected to the dryer, and the air outlet end thereof is connected to the storage module.

[0014] The present invention is further configured as follows: the storage module includes a CO2 storage tank; and the CO2 storage tank is connected to the inside of the liquefier.

[0015] The present invention has the following beneficial effects:

[0016] 1. The present invention uses ammonia water as an absorbent and utilizes the following chemical properties of ammonia water: The CO2 in the flue gas is absorbed and treated, and the ammonia captures CO2 and reacts to generate a by-product, ammonium bicarbonate, which can be directly used as agricultural fertilizer. This not only solves the problem of ammonia escape during the decarbonization process, but also can generate certain economic benefits.

[0017] 2. The lean liquid tank, rich liquid tank and desorber of the present invention are interconnected to form a closed loop. The lean liquid tank transports adsorbent to the rich liquid tank. The adsorbent adsorbs CO2 to become a decarbonizing agent. The decarbonizing agent enters the desorber to separate CO2. After the decarbonizing agent separates CO2, it becomes an adsorbent that does not contain CO2 and re-enters the lean liquid tank through the suction tube, thereby realizing the reuse of the adsorbent and being more environmentally friendly.

[0018] 3. The present invention separates the CO2 in the decarbonizer through a desorber, and condenses the CO2 through a condenser, removes excess moisture in the CO2 gas through a dryer, liquefies the CO2 through a liquefier, and stores the CO2 in a CO2 storage tank to prevent the CO2 from flowing into the atmosphere. The storage is also beneficial for providing raw materials for future research.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 The present invention is a structural schematic diagram of a carbon recovery and processing device for ships.

[0022] Figure 2 The schematic diagram of the chemical reaction between ammonia water and flue gas of the present invention.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1-lean liquid tank, 2-rich liquid tank, 3-adsorbent, 4-decarbonizer, 5-inlet pipe, 6-outlet pipe, 7-liquid inlet pipe, 8-liquid outlet pipe, 9-host, 10-generator, 11-induced draft fan, 12-inlet pipe, 13-outlet pipe, 14-flue gas scrubber, 15-flue gas scrubber pump, 16-desorber, 17-heater, 18-recovery pipe, 19-liquid suction pipe, 20-condenser, 21-dryer, 22-liquefier, 23-CO2 storage tank. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] For specific embodiment 1, please refer to Figure 1-2 The present invention is a carbon recovery and processing device for ships, comprising a flue gas manufacturing module, a pretreatment module, an absorption module, a desorption module, a condensation module, a drying module, a liquefaction module and a storage module; the absorption module comprises a lean liquid tank 1 and a rich liquid tank 2 which are connected internally; an adsorbent 3 is stored in the lean liquid tank 1; the main component of the adsorbent 3 is ammonia water; a decarbonizing agent 4 is stored in the rich liquid tank 2; the main component of the decarbonizing agent 4 is ammonia water after absorbing CO2; an air inlet pipe 5 and an air outlet pipe 6 are respectively passed through and fixed on the rich liquid tank 2; the air inlet pipe 5 is connected to the pretreatment module; the air outlet pipe 6 is connected to the outside atmosphere; the air inlet pipe 5 extends into the liquid of the decarbonizing agent 4; the rich liquid tank 2 is connected to the desorption module; a liquid inlet pipe 7 and a liquid outlet pipe 8 are respectively passed through and fixed on the lean liquid tank 1; the liquid inlet pipe 7 is connected to the desorption module; the liquid outlet pipe 8 is connected to the inside of the rich liquid tank 2; the liquid outlet pipe 8 extends into the liquid of the adsorbent 3.

[0027] The working principle of this embodiment is: first, the flue gas production module generates flue gas, which then enters the processing module for flue gas pretreatment to separate solid particles and impurities in the flue gas from the flue gas, and the pretreated flue gas enters the absorption module for chemical adsorption.

[0028] First, the adsorbent 3 is extracted from the lean liquid tank 1 through the liquid outlet pipe 8 and transported into the rich liquid tank 2, and then the pretreated flue gas enters the adsorbent 3 through the air inlet pipe 5. The adsorbent 3 absorbs the CO2 in the flue gas, so that the adsorbent 3 in the rich liquid tank 2 becomes a decarbonizer 4 containing CO2. The flue gas with CO2 absorbed flows to the outside atmosphere through the air outlet pipe 6, and then the decarbonizer 4 enters the desorption module to separate CO2. The separated CO2 enters the condensation module for condensation, the drying module for drying, the liquefaction module for liquefaction, and finally enters the storage module for storage.

[0029] In this embodiment, ammonia water is used as the absorbent, and the following chemical properties of ammonia water are utilized:

[0030]

[0031] The CO2 in the flue gas is absorbed and treated, and the ammonia captures CO2 and reacts to generate a by-product, ammonium bicarbonate, which can be directly used as agricultural fertilizer. This not only solves the problem of ammonia escape during the decarbonization process, but also can generate certain economic benefits.

[0032] For specific embodiment 2, please refer to Figure 1-2 On the basis of the specific embodiment 1, the smoke manufacturing module includes a main unit 9, a generator 10 and an induced draft fan 11; the induced draft fan 11 is respectively provided with an air inlet pipe 12 and an air outlet pipe 13; the air inlet pipe 12 is connected to the main unit 9 and the generator 10; the air outlet pipe 13 is connected to the pretreatment module.

[0033] Specifically, the pretreatment module includes a flue gas scrubber 14 and a flue gas scrubber pump 15; the water suction end of the flue gas scrubber pump 15 is connected to anhydrous alcohol, and its water outlet end is connected to the inside of the flue gas scrubber 14; the flue gas scrubber 14 is used to treat solid particles and impurities in the flue gas; the gas outlet end of the flue gas scrubber 14 is connected to the air inlet pipe 5; the gas outlet end of the flue gas scrubber 14 is provided with a velocity sensor and a concentration detector; the velocity sensor is used to detect the gas flow rate; the concentration detector is used to detect the CO2 concentration.

[0034] Furthermore, the desorption module includes a desorber 16 and a heater 17; the desorber 16 is used to separate the CO2 in the decarbonizer 4; a recovery pipe 18 is connected between the desorber 16 and the liquid inlet pipe 7; a liquid suction pipe 19 is connected between the desorber 16 and the rich liquid tank 2; the liquid suction pipe 19 runs through the interior of the heater 17; the desorber 16 is connected to the condensation module.

[0035] Furthermore, the condensation module includes a condenser 20; the condenser 20 is used to condense the CO2 separated by the desorber 16; the air inlet end of the condenser 20 is connected to the desorber 16, and the air outlet end thereof is connected to the drying module.

[0036] Furthermore, the drying module includes a dryer 21; the dryer 21 is used to remove excess moisture from the CO2 gas; the air inlet end of the dryer 21 is connected to the condenser 20, and the air outlet end thereof is connected to the liquefaction module.

[0037] Furthermore, the liquefaction module includes a liquefier 22; the liquefier 22 is used to liquefy CO2; the air inlet end of the liquefier 22 is connected to the dryer 21, and the air outlet end thereof is connected to the storage module.

[0038] Furthermore, the storage module includes a CO2 storage tank 23 ; the CO2 storage tank 23 is connected to the inside of the liquefier 22 .

[0039] The working principle of this embodiment is: first, the main unit 9 and the generator 10 of the flue gas manufacturing module generate flue gas, and the induced draft fan 11 sucks the flue gas generated by the main unit 9 and the generator 10 through the air inlet pipe 12 and transports it to the inside of the flue gas washing tower 14 of the pretreatment module through the air outlet pipe 13.

[0040] The flue gas washing pump 15 extracts anhydrous ethanol and transports it to the inside of the flue gas washing tower 12 to separate the solid particles and impurities in the flue gas. Then the pretreated flue gas enters the rich liquid tank 2 of the absorption module from the outlet end of the flue gas washing tower 14. The speed sensor and concentration detector at the outlet end of the flue gas washing tower 14 are used to detect the gas flow rate and CO2 concentration respectively, thereby changing the speed of the induced draft fan 11 to transport the flue gas and the amount of adsorbent 3 added to the lean liquid tank 1.

[0041] The pretreated flue gas enters the rich liquid tank 2 from the air inlet pipe 5. The adsorbent 3 is extracted from the lean liquid tank 1 in advance through the liquid outlet pipe 8 in the rich liquid tank 2. The adsorbent 3 absorbs the CO2 in the flue gas, so that the adsorbent 3 in the rich liquid tank 2 is converted into a decarbonizer 4 containing CO2. The flue gas after absorption does not contain CO2 and flows to the outside atmosphere through the air outlet pipe 6. Then, the decarbonizer 4 inside the rich liquid tank 2 is sucked into the desorber 16 of the desorption module through the liquid suction pipe 19 for desorption.

[0042] When the liquid suction pipe 19 passes through the heater 17, the temperature of the decarbonizer 4 is increased, and then the decarbonizer 4 enters the desorber 16 to separate the CO2 inside the decarbonizer 4. After the CO2 is separated, the decarbonizer 4 becomes an adsorbent 3 that does not contain CO2, and then is transported into the lean liquid tank 1 through the recovery pipe 18 and the liquid inlet pipe 7 for recovery and reuse, and the separated CO2 enters the condensation module.

[0043] The CO2 enters the condenser 20 of the condensation module to be condensed, and then the condensed CO2 enters the drying module.

[0044] The CO2 enters the dryer 21 of the drying module for drying, and the excess water in the CO2 gas is removed, and then the dried CO2 enters the liquefaction module.

[0045] The CO2 enters the liquefier 22 of the liquefaction module for liquefaction treatment, which changes the CO2 from gas to liquid, and then the liquefied CO2 enters the storage module.

[0046] The CO2 entering the storage module is collected in the CO2 storage tank 23 for collection and utilization, preventing the CO2 from flowing into the atmosphere.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A carbon recovery and processing device for ships, comprising a flue gas production module, a pretreatment module, an absorption module, a desorption module, a condensation module, a drying module, a liquefaction module and a storage module; characterized in that: The absorption module comprises a lean liquid tank (1) and a rich liquid tank (2) which are connected to each other; the lean liquid tank (1) stores an adsorbent (3); the main component of the adsorbent (3) is ammonia water; the rich liquid tank (2) stores a decarbonizing agent (4); the main component of the decarbonizing agent (4) is ammonia water after absorbing CO2; An air inlet pipe (5) and an air outlet pipe (6) are respectively passed through and fixed on the rich liquid tank (2); the air inlet pipe (5) is connected to the pretreatment module; the air outlet pipe (6) is connected to the outside atmosphere; the air inlet pipe (5) extends into the liquid of the decarbonizing agent (4); the rich liquid tank (2) is connected to the desorption module; A liquid inlet pipe (7) and a liquid outlet pipe (8) are respectively passed through and fixed on the lean liquid tank (1); the liquid inlet pipe (7) is connected to the desorption module; the liquid outlet pipe (8) is connected to the inside of the rich liquid tank (2); and the liquid outlet pipe (8) extends into the liquid inside the adsorbent (3).

2. A carbon recovery and processing device for ships according to claim 1, characterized in that: The smoke production module comprises a main engine (9), a generator (10) and an induced draft fan (11); the induced draft fan (11) is provided with an air inlet pipe (12) and an air outlet pipe (13), respectively; the air inlet pipe (12) is connected to the main engine (9) and the generator (10); and the air outlet pipe (13) is connected to the pre-treatment module.

3. The carbon recovery and processing device for ships according to claim 1, characterized in that: The pretreatment module comprises a flue gas scrubber (14) and a flue gas scrubber pump (15); the water suction end of the flue gas scrubber pump (15) is connected to anhydrous alcohol, and the water outlet end thereof is communicated with the interior of the flue gas scrubber (14); the flue gas scrubber (14) is used to treat solid particles and impurities in the flue gas; the gas outlet end of the flue gas scrubber (14) is communicated with the air inlet pipe (5); the gas outlet end of the flue gas scrubber (14) is provided with a velocity sensor and a concentration detector; the velocity sensor is used to detect the gas flow rate; and the concentration detector is used to detect the CO2 concentration.

4. The carbon recovery and processing device for ships according to claim 1, characterized in that: The desorption module comprises a desorption machine (16) and a heater (17); the desorption machine (16) is used to separate the CO2 in the decarbonizing agent (4); a recovery pipe (18) is connected between the desorption machine (16) and the liquid inlet pipe (7); a liquid suction pipe (19) is connected between the desorption machine (16) and the rich liquid tank (2); the liquid suction pipe (19) runs through the interior of the heater (17); and the desorption machine (16) is connected to the condensation module.

5. A carbon recovery and processing device for ships according to claim 4, characterized in that: The condensation module comprises a condenser (20); the condenser (20) is used to condense CO2 separated by the desorber (16); the air inlet end of the condenser (20) is connected to the desorber (16), and the air outlet end is connected to the drying module.

6. A carbon recovery and processing device for ships according to claim 5, characterized in that: The drying module comprises a dryer (21); the dryer (21) is used to remove excess moisture from the CO2 gas; the air inlet end of the dryer (21) is connected to the condenser (20), and the air outlet end of the dryer (21) is connected to the liquefaction module.

7. A carbon recovery and processing device for ships according to claim 6, characterized in that: The liquefaction module comprises a liquefier (22); the liquefier (22) is used to liquefy CO2; the air inlet end of the liquefier (22) is connected to the dryer (21), and the air outlet end thereof is connected to the storage module.

8. The carbon recovery and processing device for ships according to claim 7, characterized in that: The storage module comprises a CO2 storage tank (23); the CO2 storage tank (23) is connected to the inside of the liquefier (22).

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