CN105903314A - Fluidized bed gas adsorption-desorption system and treatment method thereof - Google Patents
Fluidized bed gas adsorption-desorption system and treatment method thereof Download PDFInfo
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- CN105903314A CN105903314A CN201610379962.1A CN201610379962A CN105903314A CN 105903314 A CN105903314 A CN 105903314A CN 201610379962 A CN201610379962 A CN 201610379962A CN 105903314 A CN105903314 A CN 105903314A
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- 238000002336 sorption--desorption measurement Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000003463 adsorbent Substances 0.000 claims abstract description 295
- 239000000463 material Substances 0.000 claims abstract description 179
- 238000003795 desorption Methods 0.000 claims abstract description 129
- 239000007787 solid Substances 0.000 claims abstract description 91
- 239000000203 mixture Substances 0.000 claims abstract description 52
- 238000010521 absorption reaction Methods 0.000 claims description 138
- 238000005243 fluidization Methods 0.000 claims description 85
- 238000009826 distribution Methods 0.000 claims description 77
- 210000004894 snout Anatomy 0.000 claims description 23
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 13
- 239000002826 coolant Substances 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 abstract description 33
- 230000008929 regeneration Effects 0.000 abstract description 11
- 238000011069 regeneration method Methods 0.000 abstract description 11
- 239000012530 fluid Substances 0.000 description 29
- 238000012546 transfer Methods 0.000 description 17
- 239000003795 chemical substances by application Substances 0.000 description 14
- 238000003672 processing method Methods 0.000 description 10
- 238000001514 detection method Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 238000009827 uniform distribution Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 230000000274 adsorptive effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 229910052756 noble gas Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- -1 when system operates Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
- B01D53/10—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents
- B01D53/12—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents according to the "fluidised technique"
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Abstract
The invention discloses a fluidized bed gas adsorption-desorption system and a treatment method thereof. The system includes an adsorption fluidized bed, a regeneration fluidized bed, an adsorption side gas-solid separator, a desorption side gas-solid separator and a feed divider. The adsorption fluidized bed has an adsorbent inlet, a to-be-treated gas inlet, a first returned material inlet and a first mixture outlet. The adsorption side gas-solid separator is connected to the first mixture outlet. The regeneration fluidized bed has a second returned material inlet, a desorption gas inlet, and a second mixture outlet. The desorption side gas-solid separator is connected to the second mixture outlet. The feed divider has a feed inlet, an adsorption side divided material outlet and a desorption side divided material outlet, the feed inlet is connected to an adsorption side solid-discharge port of the adsorption side gas-solid separator, the adsorption side divided material outlet is connected to the first returned material inlet, and the desorption side divided material outlet is connected to the second returned material inlet. The system provided by the invention is easy to operate, the system treatment ability is enhanced, and the adsorption efficiency, adsorption economical efficiency and operation continuity are improved.
Description
Technical field
The present invention relates to fluidized bed gas adsorption technology field, especially relate to a kind of fluidized bed gas adsorption/desorption system and
Its processing method.
Background technology
Industrial adsorption reactor is for controlling reactor pressure decrease, adsorption efficiency and absorption economy, and empty tower gas velocity often controls
0.1～about 0.6m/s, bed height controls 3～about 5m.For reaching industry quantity-produced purpose, absorbing unit
Setting up and put multiple (usually 3～5) adsorptive reactor, a reactor is used for adsorbing, and one is used for adsorbent reactivation,
One is dried cooling for adsorbent, and remaining is standby.Three reactors used are back and forth by manually or mechanically switching.
Present stage, the common reactor of industrial adsorption is fixed bed, revolving bed and moving bed, wherein ADSORPTION IN A FIXED BED reaction
Device industrially uses relatively broad, and its adsorbing medium heap is real to be filled in adsorptive reactor, and the fluid containing target component is worn
The most adsorbent bed, target component adsorbate is adsorbed in the adsorbent surface of porous, and remaining composition penetrates adsorbent bed.
The labor intensity such as the operation maintenance while of filling replacing, the regeneration of adsorbent and multiple reactor of ADSORPTION IN A FIXED BED reactor are all
Bigger.Meanwhile, misoperation also easily causes that air flow method is uneven, joint gushes and occurs with the phenomenon such as channel.Inhale in moving bed
Attached dose is in mobile status all the time, and the degree of wear each other is big, and moving bed device structure is complicated, bulky,
Troublesome poeration.
The empty tower gas velocity of fluid bed up to 3～10m/s (different according to grain diameter, empty tower gas velocity is different), has simultaneously
The advantages such as gas-solid contact area is big, and mass-transfer efficiency is high, uniform distribution of temperature field.Quick along with the research of fluid bed in recent years
Development, introduces industrial adsorption by fluidization, can solve that industrial adsorption empty tower gas velocity is little, labor intensity big, mass transfer
The shortcomings such as inefficient, thermo parameters method is uneven.
Summary of the invention
The application is intended at least to solve one of technical problem present in prior art.To this end, it is desirable to provide one
Plant fluidized bed gas adsorption/desorption system, in this system, reactor empty tower gas velocity is big, labor intensity is little, mass-transfer efficiency is high,
Uniform distribution of temperature field.
A kind of process side being applied to above-mentioned fluidized bed gas adsorption/desorption system of offer is provided
Method.
Fluidized bed gas adsorption/desorption system according to embodiments of the present invention, including: adsorbent fluidization bed, described adsorbent fluidization
Bed accessory has adsorbent entrance, pending gas entrance, the first returning charge entrance and the first mixture outlet；Absorption side gas solid separation
Device, described absorption side gas-solid separator is connected with described first mixture outlet and mixes with the adsorbent after importing absorption and gas
Compound, described absorption side gas-solid separator has place and regulates the flow of vital energy outlet and adsorb side solids outlet port；Regenerated fluidized bed, institute
State regenerated fluidized bed accessory and have the second returning charge entrance, stripping gas entrance and the second mixture outlet；Desorption side gas-solid separator,
Described desorption side gas-solid separator is connected with described second mixture outlet and mixes with the adsorbent after importing desorption and gas
Thing, described desorption side gas-solid separator has stripping gas outlet and desorption side solids outlet port；Feeding-distribution device, described point
Material device has charging aperture, the sub-material outlet of absorption side and the sub-material outlet of desorption side, described charging aperture and described absorption side solid
Outlet is connected, and sub-material outlet in described absorption side is connected with described first returning charge entrance, the outlet of described desorption side sub-material and institute
State the second returning charge entrance to be connected.
Fluidized bed gas adsorption/desorption system according to embodiments of the present invention, has been come by adsorbent fluidization bed and regenerated fluidized bed
Become the adsorption/desorption of adsorbent, and due to fluid bed have that empty tower gas velocity is big, gas-solid contact area is big, mass-transfer efficiency is high,
The advantages such as uniform distribution of temperature field, improve system processing power, improve adsorption efficiency and absorption economy and continuity of operation.
It addition, fluid bed internal adsorption agent is in fluidized state, the mutual attrition of adsorbent is little.Will absorption by feeding-distribution device
The adsorbent distribution that fluid bed is discharged is to regenerated fluidized bed and return to adsorbent fluidization bed, it is achieved system adsorption/desorption continuous
Property, alleviating the labor intensity of adsorbent transfer operation, structure of system equipment is simple, reactor apparatus is little, simple to operate.
In certain embodiments, described feeding-distribution device includes: sub-material U valve, limits valve pocket, institute in described sub-material U valve
Stating valve pocket and include spaced apart snout cavity, absorption sub-material chamber, side and desorption sub-material chamber, side, described snout cavity is respectively by connection
Aperture is connected with sub-material chamber, described absorption side and desorption sub-material chamber, side；Wherein, described charging aperture, the sub-material outlet of absorption side
It is respectively provided on described sub-material U valve with the sub-material outlet of desorption side, and described charging aperture is connected with described snout cavity, described
The sub-material outlet of absorption side is connected with sub-material chamber, described absorption side, the outlet of described desorption side sub-material and sub-material chamber, described desorption side
It is connected, described sub-material U valve is additionally provided with the sub-material gas entrance for being blown into loosening wind to described valve pocket.Sub-material U valve
Be equivalent to be integrated in prior art two U valves, can complete to absorption side and the mistake of desorption side distribution adsorbent simultaneously
Journey, the structure of feeding-distribution device is simplified, and the most controlled.
Specifically, described sub-material U valve include vertically arranged baffle assembly, described baffle assembly be located in described valve pocket with
By exit port chamber, described valve pocket interval, absorption sub-material chamber, side and desorption sub-material chamber, side, the bottom of described baffle assembly is with described
The diapire of valve pocket is spaced apart to limit described connection aperture.Utilizing baffle assembly to a point chamber, structure is the simplest.
More specifically, corresponding sub-material chamber, described absorption side and sub-material chamber, described desorption side are respectively equipped with institute on described sub-material U valve
State sub-material gas entrance.Thus, the adsorbent in absorption sub-material chamber, side and desorption side sub-material intracavity can be blown afloat, be conducive to absorption
Agent is discharged from the sub-material outlet of absorption side and the sub-material outlet of desorption side respectively.
Further, described snout cavity between sub-material chamber, described absorption side and sub-material chamber, described desorption side, described valve pocket
Diapire be provided with the separating table of corresponding described snout cavity, the upper surface of described separating table is formed as plane or protruding upward
Convex surface.Thus, the adsorbent on separating table is directed away from the direction of snout cavity under gravity and slides, and adsorbent can
Automatically slide to adsorb sub-material chamber, side and desorption sub-material chamber, side.
Preferably, sub-material outlet in described absorption side is connected with described first returning charge entrance by the first sub-feed tube, from described
Absorption side sub-material exports on the direction of described first returning charge entrance, the described first downward-sloping extension of sub-feed tube, and described the
Angle between one sub-feed tube and vertical plane is 15 degree of-45 degree；Described desorption side sub-material exports by the second sub-feed tube and institute
State the second returning charge entrance to be connected, on the direction exporting to described second returning charge entrance from described desorption side sub-material, described the
The two downward-sloping extensions of sub-feed tube, the angle between described second sub-feed tube and vertical plane is 15 degree of-45 degree.Thus, divide
Adsorbent in material U valve can flow out automatically, without arranging carrier again in the first sub-feed tube and the second sub-feed tube.
In certain embodiments, being provided with absorption side air distribution plate in described adsorbent fluidization bed, described pending gas entrance is positioned at institute
State the lower section of absorption side air distribution plate, and described adsorbent entrance, described first returning charge entrance and described first mixture outlet
Being positioned at the top of described absorption side air distribution plate, described absorption side air distribution plate is formed as downwardly projecting cone plate, described absorption
The cone element of side air distribution plate and the angle of horizontal plane are 10 degree of-20 degree；Desorption side cloth wind it is provided with in described regenerated fluidized bed
Plate, described stripping gas entrance is positioned at the lower section of described desorption side air distribution plate, described second returning charge entrance and described second mixing
Thing outlet is positioned at the top of described desorption side air distribution plate, and described desorption side air distribution plate is formed as downwardly projecting cone plate, institute
The angle of the cone element and horizontal plane of stating desorption side air distribution plate is 10 degree of-20 degree.Thus so that the internal absorption of fluid bed
Agent more uniformly spreads.
Specifically, fluidized bed gas adsorption/desorption system also includes adsorbent tank, and the discharging opening of described adsorbent tank leads to
Cross feed auger to be connected with described adsorbent entrance.Thus, absorption can be inputted from adsorbent tank continuously to adsorbent fluidization bed
Agent, it is ensured that the promptness of adsorbent input, seriality.
Further, fluidized bed gas adsorption/desorption system also includes cooler, limits adsorbent and change in described cooler
The passage of heat and coolant heat exchanger channels, the two ends of described adsorbent heat exchanger channels respectively with described desorption side solids outlet port and
Described adsorbent entrance is connected.System achieves adsorption and desorption regeneration and the refrigerating work procedure of adsorbent, and technique is simple, behaviour
Facilitate, economical reliable, save a large amount of operations that adsorbent in system is filled, changed, the continuous productive labor of system is strong
Spend little.
The processing method of fluidized bed gas adsorption/desorption system according to embodiments of the present invention, is applied to according to the present invention above-mentioned
Fluidized bed gas adsorption/desorption system described in embodiment, this processing method comprises the steps: that described adsorbent fluidization bed leads to
Cross described adsorbent entrance to import adsorbent, import pending gas, described adsorbent fluidization bed by described pending gas entrance
The adsorbent of interior fluidisation mixes with pending gas and adsorbs the target component in pending gas；Adsorbent after absorption and gas
Mixture is flowed to described absorption side gas-solid separator by described first mixture outlet, and the adsorbent after separation is from described absorption
Side solids outlet port is discharged in described feeding-distribution device, the place after separation regulate the flow of vital energy regulate the flow of vital energy from described outlet discharge；Described point
The adsorbent that material device is discharged into is flowed to described absorption by described first returning charge entrance and described second returning charge entrance distribution
Change bed and described regenerated fluidized bed；Described regenerated fluidized bed imports stripping gas, the desorbing of importing by described stripping gas entrance
Gas adsorbs the target component in adsorbent after being sufficiently mixed with the adsorbent imported from described second returning charge entrance；After desorption
Adsorbent and admixture of gas are flowed to described desorption side gas-solid separator, the absorption after separation by described second mixture outlet
Agent is discharged from described desorption side solids outlet port, and the stripping gas after separation is discharged from described stripping gas outlet.
The processing method of fluidized bed gas adsorption/desorption system according to embodiments of the present invention, improves disposal ability.Can realize
The seriality of adsorption/desorption, alleviates the labor intensity of adsorbent transfer operation, improves adsorption efficiency and absorption economy.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become from the following description
Substantially, or by the practice of the present invention recognize.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage will become bright from combining the accompanying drawings below description to embodiment
Aobvious and easy to understand, wherein:
Fig. 1 is the structural representation of fluidized bed gas adsorption/desorption system according to embodiments of the present invention；
Fig. 2 is the structural representation of feeding-distribution device according to embodiments of the present invention.
Reference:
Fluidized bed gas adsorption/desorption system 100,
Adsorbent tank 1, discharging control valve 2, feed auger 3, adsorbent fluidization bed 4, absorption side air distribution plate 5, absorption
Side gas-solid separator 6, return duct 7,
Feeding-distribution device 8, sub-material U valve 81, baffle assembly the 82, first sub-feed tube the 83, second sub-feed tube 84, U valve cloth
Aerofoil 9, separating table 10,
Regenerated fluidized bed 11, desorption side air distribution plate 12, desorption side gas-solid separator 13, cooler 14, inner tube 141,
Outer tube 142, auger conveyor 15,
Discharging opening a, pending gas entrance b, adsorbent entrance c, the first returning charge entrance d, the first mixture outlet e,
Adsorb side solids outlet port f, outlet g is regulated the flow of vital energy at place, charging aperture h, absorption side sub-material outlet i, desorption side sub-material export
J, connection aperture m, sub-material gas entrance n, the second returning charge entrance o, stripping gas entrance p, the second mixture outlet q,
Desorption side solids outlet port r, stripping gas outlet t, coolant entrance u, coolant outlet w,
Valve pocket V, snout cavity A, absorption sub-material chamber, side B, desorption sub-material chamber, side C, coolant heat exchanger channels E, absorption
Agent heat exchanger channels F.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish phase
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Below with reference to Fig. 1-Fig. 2, fluidized bed gas adsorption/desorption system 100 according to embodiments of the present invention is described.
Fluidized bed gas adsorption/desorption system 100 according to embodiments of the present invention, as it is shown in figure 1, include: adsorbent fluidization
Bed 4, absorption side gas-solid separator 6, regenerated fluidized bed 11, desorption side gas-solid separator 13 and feeding-distribution device 8.
As it is shown in figure 1, adsorbent fluidization bed 4 has adsorbent entrance c, pending gas entrance b, the first returning charge entrance d
Adsorb for filling in adsorbent fluidization bed 4 with the first mixture outlet e, adsorbent entrance c and the first returning charge entrance d
Agent, pending gas entrance b is for filling pending gas in adsorbent fluidization bed 4.Adsorbent is located in adsorbent fluidization bed 4
In fluidized state, the adsorbent of fluidisation can be sufficiently mixed with pending gas and contact, to absorb the target component in pending gas,
Pending gas is regulated the flow of vital energy at formation after being absorbed target component.After adsorbent mixes a period of time with pending gas, mixture
Can discharge from the first mixture outlet e.
As it is shown in figure 1, absorption side gas-solid separator 6 is connected to import the adsorbent after adsorbing with the first mixture outlet e
And admixture of gas, absorption side gas-solid separator 6 has place and regulates the flow of vital energy outlet g and adsorb side solids outlet port f.The most just
It is to say, after the mixture in adsorbent fluidization bed 4 enters absorption side gas-solid separator 6, will by absorption side gas-solid separator 6
The adsorbent and the admixture of gas that have adsorbed target component are separated, isolated admixture of gas from from regulate the flow of vital energy outlet g
Place discharges, and isolated adsorbent is discharged from absorption side solids outlet port f.If in expellant gas mixture, target
Component content is up to standard, then admixture of gas will be directed to next treatment process.
As it is shown in figure 1, regenerated fluidized bed 11 has the second returning charge entrance o, stripping gas entrance p and the second mixture outlet
Q, the second returning charge entrance o are for filling adsorbent in regenerated fluidized bed 11, and stripping gas entrance p is for regenerated fluidized
Stripping gas is filled in bed 11.Adsorbent is in fluidized state in regenerated fluidized bed 11, and the adsorbent of fluidisation can be with desorbing
Gas is sufficiently mixed contact, the target component that stripping gas can absorb in adsorbent.When adsorbent mixes a period of time with stripping gas
After, mixture can be discharged from the second mixture outlet q.
As it is shown in figure 1, desorption side gas-solid separator 13 is connected to import the adsorbent after being desorbed with the second mixture outlet q
And admixture of gas, desorption side gas-solid separator 13 has stripping gas outlet t and desorption side solids outlet port r.The most just
It is to say, after the mixture in regenerated fluidized bed 11 enters desorption side gas-solid separator 13, by desorption side gas-solid separator 13
The desorbing agent and admixture of gas that have been desorbed target component being separated, isolated admixture of gas is from stripping gas outlet
Discharging at t, isolated desorbing agent is discharged from desorption side solids outlet port r.
As depicted in figs. 1 and 2, feeding-distribution device 8 has charging aperture h, absorption side sub-material outlet i and the sub-material outlet of desorption side
J, charging aperture h are connected with absorption side solids outlet port f, and absorption side sub-material outlet i and the first returning charge entrance d is connected, de-
Attached side sub-material outlet j and the second returning charge entrance o is connected.
It is to say, adsorbent is after having adsorbed the target component of pending gas, being adsorbed that the place of target component regulates the flow of vital energy can
Enter in next operation, and the adsorbent having adsorbed target component can enter in feeding-distribution device 8.Feeding-distribution device 8 leads to
Cross desorption side sub-material outlet j to be assigned to by the adsorbent having adsorbed target component in regenerated fluidized bed 11, by regenerated fluidized bed
11 carry out desorption and regeneration.Adsorbent is desorbed gas adsorbed target component in regenerated fluidized bed 11, then by desorption side gas
Solid separator 13 is isolated, and the adsorbent being desorbed target component can recycling.So, adsorbent can be by dividing
Material device 8 is transferred to be desorbed side with regeneration by absorption side, it is achieved adsorbent, in intrasystem automatic transfer, alleviates transfer
The labor intensity of operation.
So, adsorbent fluidization bed 4 uses without switching with regenerated fluidized bed 11, and adsorbent fluidization bed 4 is only used for adsorbent and inhales
Receiving the target component in pending gas, regenerated fluidized bed 11 is only used for the desorption and regeneration of adsorbent.So, stream is decreased
Change the number of times of bed start and stop, make production have seriality, improve production efficiency.If two fluid beds to be used alternatingly,
System then needs to arrange too much regulation and control and Steering valve device, operation inconvenience.Therefore without switching system equipment more
Little, whole technique is simple, easy to operate.
Further it will be understood that adsorbent is when the target component of the adsorbent fluidization bed 4 pending gas of internal adsorption, inhaled
The restriction of the conditions such as attached time, adsorbent is generally unable to reach utilization rate very, say, that from the first mixture
In the adsorbent that outlet e discharges, generally some adsorbent fails to be adsorbed onto target component, or some
Adsorbent fails to absorb saturated to target component.
In embodiments of the present invention, by arranging feeding-distribution device 8, the isolated adsorbent in absorption side enter into sub-material dress
After putting 8, by absorption side sub-material outlet i, undersaturated adsorbent is redistributed in adsorbent fluidization bed 4, and in absorption
Again absorb the target component in pending gas in fluid bed 4, improve the utilization rate of adsorbent, improve the suction of reactor
Attached economy.
In embodiments of the present invention, use fluid bed to complete the adsorption/desorption process of adsorbent, fluidized-bed reactor adsorbs
Agent is in fluidized state, long-pending with fluid contact level big, has good mass transfer and heat transfer property, and temperature field production capacity is big.
And the empty tower gas velocity of fluid bed is big, treating capacity is big, and economy is high.Owing to adsorbent is in fluidized state in fluid bed,
Adsorbent attrition consumes the least.
Fluidized bed gas adsorption/desorption system 100 according to embodiments of the present invention, by adsorbent fluidization bed 4 and regenerated fluidized
Bed 11 completes the adsorption/desorption of adsorbent, and empty tower gas velocity is big, gas-solid contact area is big, biography owing to fluid bed has
The advantages such as matter efficiency height, uniform distribution of temperature field, improve system processing power, improve adsorption efficiency and absorption economy and
Continuity of operation.It addition, fluid bed internal adsorption agent is in fluidized state, the mutual attrition of adsorbent is little.By dividing
The adsorbent distribution that adsorbent fluidization bed 4 is discharged by material device 8 to regenerated fluidized bed 11 and returns to adsorbent fluidization bed 4, it is achieved
The seriality of system adsorption/desorption, alleviates the labor intensity of adsorbent transfer operation, and structure of system equipment is simple, reaction
Device equipment is little, simple to operate.
In certain embodiments, as it is shown in figure 1, fluidized bed gas adsorption/desorption system 100 also includes adsorbent tank 1,
The discharging opening a of adsorbent tank 1 is connected with adsorbent entrance c.So, can store up into a certain amount of in adsorbent tank 1
Adsorbent, when system operates, adsorbent can be inputted from adsorbent tank 1 continuously to adsorbent fluidization bed 4, it is ensured that inhale
The promptness of attached dose of input, seriality.
Specifically, as it is shown in figure 1, be provided with discharging control valve 2 at the discharging opening a of adsorbent tank 1, to control absorption
Agent load and discharging speed.
Specifically, as it is shown in figure 1, fluidized bed gas adsorption/desorption system 100 also includes feed auger 3, feed auger 3
Being connected with adsorbent entrance c, feed auger 3 for sending into adsorbent fluidization bed 4 by adsorbent.Thus, charging conveying energy
Power is big, is difficult to stuck blocking, and service life is long.
Further, as it is shown in figure 1, the discharging opening a of adsorbent tank 1 is by feed auger 3 and adsorbent entrance c
Being connected, the adsorbent i.e. discharged from the discharging opening a of adsorbent tank 1 is sent to adsorbent fluidization bed 4 by feed auger 3
In.
In certain embodiments, as it is shown in figure 1, adsorbent fluidization bed 4 is provided with multiple first mixture outlet e, multiple
First mixture outlet e is connected with absorption side gas-solid separator 6 respectively, and the mixture in adsorbent fluidization bed 4 can be by many
Individual first mixture outlet e flows to absorption side gas-solid separator 6.
Specifically, pending gas entrance b is located at the bottom of adsorbent fluidization bed 4, and the first mixture outlet e is located at absorption stream
Changing the top of bed 4, after adsorbent fluidization bed 4 is filled with pending gas, pending gas upwards blows, and makes adsorbent fluidization bed 4
Interior mixture is upwards discharged.
Further, as it is shown in figure 1, fluidized bed gas adsorption/desorption system 100 also includes return duct 7, return duct 7
One end connect the place of absorption side gas-solid separator 6 and regulate the flow of vital energy outlet g, the other end connection adsorbent fluidization bed of return duct 7
4, return duct 7 is used for will be with again in the absorption side isolated gas of gas-solid separator 6 be directed back to adsorbent fluidization bed 4
Contact with adsorbent.
It is understood that flow into the pending gas of adsorbent fluidization bed 4 for the first time from pending gas entrance b, with fluidisation
After adsorbent contact, it is impossible to reach very to remove target component.It is to say, absorption side gas-solid separator 6 separates
The gas gone out includes and is regulated the flow of vital energy by the place absorbing target component, also include pending gas not to be adsorbed.
Therefore the setting of return duct 7, can by from from outlet g expellant gas mixture of regulating the flow of vital energy return again to adsorbent fluidization
In bed 4, again contact with adsorbent to remove target component, reduce the content of target component in gas, regulate the flow of vital energy at raising
Final purification rate.
Alternatively, regulate the flow of vital energy detection piece and recycle control valve (not shown) in the system place of may also include, and place's detection piece of regulating the flow of vital energy is used
Outlet g of regulating the flow of vital energy at detection expellant gas removes the process Gas content of target component, or has regulated the flow of vital energy detection piece in place
The content of target component in outlet g expellant gas is regulated the flow of vital energy at the place of detection.Recycle control valve is located on return duct 7,
Recycle control valve detection piece of regulating the flow of vital energy with place electrically connects, to control recycle control valve according to the regulate the flow of vital energy testing result of detection piece of place
Aperture.
Such as, when during outlet g expellant gas is regulated the flow of vital energy at place, target component content is higher, recycle control valve can be opened,
So that the isolated gas of absorption side gas-solid separator 6 is directed back in adsorbent fluidization bed 4 again.When place regulate the flow of vital energy outlet g row
When in the gas gone out, target component content is relatively low up to standard, recycle control valve can be closed.
In certain embodiments, as it is shown in figure 1, be provided with absorption side air distribution plate 5 in adsorbent fluidization bed 4, pending gas enters
Mouth b is positioned at the lower section of absorption side air distribution plate 5, and adsorbent entrance c, the first returning charge entrance d and the first mixture outlet
E is positioned at the top of absorption side air distribution plate 5.The pending gas being beneficial to be blown into that is provided with of absorption side air distribution plate 5 flows in absorption
It is evenly distributed in changing bed 4, is beneficial to improve the purifying rate of pending gas.
Specifically, absorption side air distribution plate 5 is formed as downwardly projecting cone plate, and absorption side air distribution plate 5 is at adsorbent fluidization bed
In the middle of in 4, low edge is high, and the absorption side air distribution plate 5 of cone-shaped can effectively prevent the adsorbent entering adsorbent fluidization bed 4 from existing
The edge of adsorbent fluidization bed 4 piles up so that adsorbent fluidization bed 4 internal adsorbent more uniformly spreads.
Advantageously, the cone element of absorption side air distribution plate 5 and the angle α of horizontal plane are 10 degree of-20 degree.
In certain embodiments, the absorption side preferred cyclone separator of gas-solid separator 6, absorption side solids outlet port f is located at
The bottom of absorption side gas-solid separator 6.
In certain embodiments, as it is shown in figure 1, regenerated fluidized bed 11 is provided with multiple second mixture outlet q, multiple
Second mixture outlet q is connected with desorption side gas-solid separator 13 respectively, and the mixture in regenerated fluidized bed 11 can pass through
Multiple second mixture outlet q flow to desorption side gas-solid separator 13.
Specifically, stripping gas entrance p is located at the bottom of regenerated fluidized bed 11, and the second mixture outlet q is located at regenerated fluidized
The top of bed 11, after regenerated fluidized bed 11 is filled with stripping gas, stripping gas upwards blows, in making regenerated fluidized bed 11
Mixture upwards discharge.
In certain embodiments, as it is shown in figure 1, be provided with desorption side air distribution plate 12 in regenerated fluidized bed 11, stripping gas enters
Mouth p is positioned at the lower section of desorption side air distribution plate 12, and the second returning charge entrance o and the second mixture outlet q is positioned at desorption side cloth
The top of aerofoil 12.The stripping gas being beneficial to be blown into that is provided with of desorption side air distribution plate 12 is distributed in regenerated fluidized bed 11
Uniformly, it is beneficial to improve the desorption rate of adsorbent.
Specifically, desorption side air distribution plate 12 is formed as downwardly projecting cone plate, and desorption side air distribution plate 12 is regenerated fluidized
In the middle of in bed 11, low edge is high, and the desorption side air distribution plate 12 of cone-shaped can effectively prevent from entering the suction of regenerated fluidized bed 11
The attached dose of edge at regenerated fluidized bed 11 piles up so that regenerated fluidized bed 11 internal adsorbent more uniformly spreads.
Advantageously, the cone element of desorption side air distribution plate 12 and the angle β of horizontal plane are 10 degree of-20 degree.
Alternatively, stripping gas is the noble gas of steam or heating.
In certain embodiments, the desorption side preferred cyclone separator of gas-solid separator 13, desorption side solids outlet port r is located at
The bottom of desorption side gas-solid separator 13.
In certain embodiments, as it is shown in figure 1, fluidized bed gas adsorption/desorption system 100 also includes cooler 14, cold
But limiting adsorbent heat exchanger channels F and coolant heat exchanger channels E in device 14, the two ends of adsorbent heat exchanger channels F are divided
It is not connected with desorption side solids outlet port r and adsorbent entrance c.It is to say, the adsorbent after Tuo Fu can be by cooling
After device 14 cooling, return again to recycle to adsorbent fluidization bed 4.
So, system achieves adsorption and desorption regeneration and the refrigerating work procedure of adsorbent, and technique is simple, easy to operate, warp
Ji is reliable, saves a large amount of operations that adsorbent in system is filled, changed, and system continuous productive labor intensity is little.
Specifically, as it is shown in figure 1, cooler 14 includes inner tube 141 and outer tube 142, inner tube 141 outside outer tube 142, it is enclosed within
On.The desorption side solids outlet port r of desorption side gas-solid separator 13 is internal with inner tube 141 to be connected, in inner tube 141
Chamber constitutes adsorbent heat exchanger channels F.Outer tube 142 tube wall is provided with coolant entrance u and coolant outlet w, outer tube 142
Coolant heat exchanger channels E is limited between tube wall and inner tube 141 tube wall.
Alternatively, coolant is cooling water, and certainly, coolant may be used without other fluids.Advantageously, at cooler 14
In, the flow direction of the adsorbent in inner tube 141 with inner tube 141 outside the flow direction of coolant contrary, so that taking off
Attached adsorbent and cooling water countercurrent flow, improve heat exchange efficiency.
More specifically, as it is shown in figure 1, system also includes auger conveyor 15, auger conveyor 15 will be for being desorbed side
The isolated adsorbent of gas-solid separator 13 exports towards target direction.
Alternatively, in adsorbent heat exchanger channels F, it is provided with auger conveyor 15, with the adsorbent after cooling down towards target side
To output.
Further, in cooler 14, adsorbent heat exchanger channels F is connected with adsorbent tank 1, and the adsorbent after heat exchange enters
Enter in adsorbent tank 1, in case adsorbent fluidization bed 4 materials, make adsorbent can be recycled.Certainly, adsorbent storage
Tank 1 can also supplement fresh adsorbent in good time.
In certain embodiments, as in figure 2 it is shown, feeding-distribution device 8 includes: sub-material U valve 81, limit in sub-material U valve 81
Make valve pocket V, valve pocket V and include spaced apart snout cavity A, absorption side sub-material chamber B and desorption sub-material chamber, side C, import
Chamber A is connected by connection aperture m and absorption side sub-material chamber B and desorption sub-material chamber, side C respectively.
Wherein, charging aperture h, absorption side sub-material outlet i and desorption side sub-material outlet j are respectively provided on sub-material U valve 81,
And charging aperture h is connected with snout cavity A, absorption side sub-material outlet i is connected with absorption sub-material chamber, side B, and desorption side is divided
Material outlet j is connected with desorption sub-material chamber, side C, sub-material U valve 81 is additionally provided with for being blown into loosening wind to valve pocket V
Sub-material gas entrance n.
So, absorption side gas-solid separator 6 drains into the adsorbent of feeding-distribution device 8, charging aperture h enter into snout cavity A,
Owing to sub-material gas entrance n is blown into loosening wind to valve pocket V, the adsorbent entering valve pocket V is blowed to adsorb side and divides by loosening wind
Material chamber B and desorption sub-material chamber, side C, the adsorbent of two intracavity flows to adsorbent fluidization bed 4 and regenerated fluidized bed 11 respectively,
Thus realize the distribution of adsorbent.
In embodiments of the present invention, sub-material U valve 81 is equivalent to be integrated in prior art two U valves, can be simultaneously
Completing to absorption side and the process of desorption side distribution adsorbent, the structure of feeding-distribution device 8 is simplified, and the simplest
Controlled.
Specifically, as in figure 2 it is shown, sub-material U valve 81 includes that baffle assembly 82, baffle assembly 82 are located in valve pocket V
By valve pocket V interval exit port chamber A, absorption side sub-material chamber B and desorption sub-material chamber, side C, to utilize baffle assembly 82
Dividing chamber, structure is the simplest.
Specifically, as in figure 2 it is shown, baffle assembly 82 is vertically arranged, the bottom of baffle assembly 82 and the diapire of valve pocket V
Spaced apart to limit connection aperture m.
Advantageously, the vertical height of baffle assembly 82 is the 1/2-2/3 of valve pocket V height.
Advantageously, the volume of snout cavity A is the 1/3～2/3 of valve pocket V volume, absorption side sub-material chamber B and desorption side sub-material
The volume of chamber C is respectively the 1/6～1/3 of valve pocket V volume.
Further, baffle assembly 82 is movably arranged in valve pocket V, so that the size of connection aperture m is adjustable, from
And the adsorbent in snout cavity A can be adjusted to absorption side and the sendout of desorption side.
In certain embodiments, as in figure 2 it is shown, corresponding absorption sub-material chamber, side B and desorption side sub-material on sub-material U valve 81
Chamber C is respectively equipped with sub-material gas entrance n, so, the adsorbent that can will adsorb in sub-material chamber, side B and desorption sub-material chamber, side C
Blowing afloat, beneficially adsorbent is discharged from absorption side sub-material outlet i and desorption side sub-material outlet j respectively.
Advantageously, the air quantity of the loosening wind entered from each sub-material gas entrance n is adjustable, such that it is able to adjust in snout cavity A
Adsorbent to absorption side and the desorption sendout of side and allocation proportion.
Specifically, as in figure 2 it is shown, be provided with U valve air distribution plate 9 at corresponding sub-material gas entrance n in valve pocket V, so that loose
Wind symptom is distributed more uniform in valve pocket V.
More specifically, the diapire of sub-material U valve 81 is provided with two sub-material gas entrance n, the top of two sub-material gas entrance n
It is respectively equipped with a U valve air distribution plate 9.
In certain embodiments, the inwall of valve pocket V is provided with corresponding snout cavity A and the separating table relative with charging aperture h
10, the beneficially adsorbent that is provided with of separating table 10 distributes towards absorption sub-material chamber, side B and desorption sub-material chamber, side C.
Specifically, as in figure 2 it is shown, separating table 10 is located on the diapire of valve pocket V, the upper surface of separating table 10 is formed as
Plane, the upper surface of separating table 10 may be alternatively formed to convex surface protruding upward, and so, the adsorbent on separating table 10 exists
Sliding in the direction being directed away from snout cavity A under action of gravity, adsorbent can slide to adsorb side sub-material chamber B and desorption automatically
Sub-material chamber, side C.
More specifically, as in figure 2 it is shown, snout cavity A is between absorption side sub-material chamber B and desorption sub-material chamber, side C, valve
The diapire of chamber V is provided with the separating table 10 of corresponding snout cavity A, and the upper surface of separating table 10 is formed as plane or upwards
The convex surface protruded.
Alternatively, the width of separating table 10 is preferably consistent with the width of two dividing plates in baffle assembly 82, and separating table 10 can set
It is set to horizontal plate or two pieces of symmetrical swash plates, between every piece of swash plate and horizontal plane, all accompanies an acute angle.Separating table 10
Being set to swash plate form can prevent on separating table 10 adsorbent to pile up, the most beneficially adsorbent to absorption sub-material chamber, side B and
Desorption sub-material chamber, side C moves.
Further, as in figure 2 it is shown, two U valve air distribution plates 9 are connected with separating table 10, the absorption on separating table 10
When agent slides on U valve air distribution plate 9 towards both sides, can be risen by loosening wind.
Advantageously, as in figure 2 it is shown, U valve air distribution plate 9 is arranged on 1/4 bottom of sub-material U valve 81, absorption side sub-material goes out
Mouth i and desorption side sub-material outlet j is respectively provided at 1/4 top of sub-material U valve 81.
In certain embodiments, as depicted in figs. 1 and 2, sub-material outlet i in absorption side is by the first sub-feed tube 83 and first
Returning charge entrance d is connected, on the direction from absorption side sub-material outlet i to first returning charge entrance d, and the first sub-feed tube 83
Downward-sloping extension.Desorption side sub-material outlet j is connected, from desorption with the second returning charge entrance o by the second sub-feed tube 84
On the direction of side sub-material outlet j to second returning charge entrance o, the second downward-sloping extension of sub-feed tube 84.Thus sub-material U
Adsorbent in valve 81 can flow to adsorbent fluidization bed 4 He by the first sub-feed tube 83 and the second sub-feed tube 84 respectively respectively
Regenerated fluidized bed 11.
Specifically, the angle between the first sub-feed tube 83 and horizontal plane is more than the motion angle of repose of adsorbent, the second sub-feed tube
Angle between 84 and horizontal plane is more than the motion angle of repose of adsorbent.Thus, the adsorbent in sub-material U valve 81 can be certainly
Dynamic outflow, without arranging carrier again in the first sub-feed tube 83 and the second sub-feed tube 84.
Here, " angle of repose " refers to bulk cargo and the maximum angle of natural stability state can be kept (monolateral right when stacking
The angle on ground).After this angle is formed, more up heap adds this bulk cargo, and bulk cargo will be slid down naturally.Such as exist
Dump, grain stacking in, if the windrow that dump or grain are formed is formed as reaching the taper heap of angle of repose, then toward heap
When dosing coal or grain on material, the coal dosed or grain can tumble downwards.
In embodiments of the present invention, the concept of " motion angle of repose " can be analogized by the concept of above-mentioned " angle of repose ".Namely
Saying, the angle between the first sub-feed tube 83 and horizontal plane is less than or equal to the motion angle of repose of adsorbent, and adsorbent is at valve
Being in steady statue in the V of chamber, adsorbent will not flow to adsorbent fluidization bed 4 from the first sub-feed tube 83.
The most in the above-described embodiments, the angle between the first sub-feed tube 83 and horizontal plane is set greater than the fortune of adsorbent
Dynamic angle of repose, can make the adsorbent in sub-material U valve 81 automatically flow to adsorbent fluidization bed 4 from the first sub-feed tube 83, it is not necessary to
Separately set carrier.Equally, the angle between the second sub-feed tube 84 and horizontal plane is set greater than the motion peace of adsorbent
Breath angle, can make the adsorbent in sub-material U valve 81 automatically flow to regenerated fluidized bed 11 from the second sub-feed tube 84, it is not necessary to another
If carrier.
Wherein, the scope of the motion angle of repose of adsorbent is about the motion angle of repose to 35 degree of coke, therefore, the first sub-material
Angle between pipe 83 and horizontal plane is preferably greater than 35o, and the angle between the second sub-feed tube 84 and horizontal plane is preferably greater than 35o.
Preferably, the angle between the first sub-feed tube 83 and vertical plane is 15 degree of-45 degree, the i.e. first sub-feed tube 83 and water
Angle between plane is 45 degree of-75 degree.Angle between second sub-feed tube 84 and vertical plane is 15 degree of-45 degree, i.e.
Angle between second sub-feed tube 84 and horizontal plane is 45 degree of-75 degree.
The fluidized bed gas adsorption/desorption system 100 of one specific embodiment of the present invention is described referring to Fig. 1 and Fig. 2
Structure.
Fluidized bed gas adsorption/desorption system 100 includes adsorbent tank 1, feed auger 3, adsorbent fluidization bed 4, absorption
Side gas-solid separator 6, sub-material U valve 81, regenerated fluidized bed 11, desorption side gas-solid separator 13 and cooler 14, inhale
Attached dose of storage tank 1, feed auger 3, adsorbent fluidization bed 4 and absorption side gas-solid separator 6 are sequentially connected.Absorption side gas-solid
The absorption side solids outlet port f of separator 6 is connected with the charging aperture h of sub-material U valve 81, first point of sub-material U valve 81
Material pipe 83 is connected with adsorbent fluidization bed 4, and the second sub-feed tube 84 of sub-material U valve 81 is connected with regenerated fluidized bed 11.Again
Raw fluid bed 11 is connected with desorption side gas-solid separator 13, and desorption side gas-solid separator 13 is connected with cooler 14, cold
But the auger conveyor 15 in device 14 for being delivered to adsorbent tank 1 by adsorbent.
Before system start-up, by feed auger 3 transport portion adsorbent in adsorbent fluidization bed 4.Open pending gas entrance
B, pending gas is entered by bottom adsorbent fluidization bed 4, and after absorption side air distribution plate 5, pending gas is uniformly distributed, and will inhale
Adsorbent fluidisation in attached fluid bed 4.
Angle α between the cone element of adsorbent fluidization bed 4 internal adsorption side air distribution plate 5 and horizontal plane is 20 degree, regenerated fluidized
The angle β being desorbed between the cone element of side air distribution plate 12 and horizontal plane in bed 11 is 20 degree.
In adsorbent fluidization bed 4, pending gas and adsorbent also flow contact mass transfer, adsorbent fluidization bed 4 top discharge,
Through absorption side gas-solid separator 6, being regulated the flow of vital energy at place and adsorbent is separated, regulates the flow of vital energy after reaching target by regulating the flow of vital energy in place
Outlet g is discharged, and is unsatisfactory for target and is then returned adsorbent fluidization bed 4 by return duct 7.
The adsorbent separated through absorption side gas-solid separator 6 enters in sub-material U valve 81, and adsorbent is by sub-material U valve 81
Interior snout cavity A respectively enters sub-material chamber, the absorption side B and desorption sub-material chamber, side C of the left and right sides, by sub-material gas entrance n
The loosening wind being blown into sends into suction through the U valve air distribution plate 9 of left and right cavity bottom to adsorbent fluidization bed 4 and regenerated fluidized bed 11
Attached dose.By controlling the air quantity of the loosening wind of sub-material gas entrance n, sub-material U valve 81 can be controlled and return adsorbent fluidization bed
4 and enter the flow of adsorbent of regenerated fluidized bed 11.
Wherein, on sub-material U valve 81, first sub-feed tube the 83, second sub-feed tube 84 is respectively 30 with the angle of vertical plane
Degree.In baffle assembly 82, the valve pocket V trisection of sub-material U valve 81, left, center, right three chamber are respectively accounted for valve pocket V by two pieces of dividing plates
1/3, separating table 10 is set to symmetrical swash plate, and every piece of swash plate is horizontal by 30 degree of angles.
In regenerated fluidized bed 11, desorption sub-material chamber, side C enter the adsorbent of regenerated fluidized bed 11 by taking off by bottom
The stripping gas fluidisation that attached side air distribution plate 12 is uniform, in regenerated fluidized bed 11, adsorbent to be desorbed passes with pyrolysis air-breathing
Matter heat exchange.Stripping gas is discharged by regenerated fluidized bed 11 top with being desorbed adsorbent completely, enters to be desorbed side gas-solid separator
13, after gas solid separation, stripping gas reheat vapor cycle utilizes, and is desorbed adsorbent completely and enters auger conveyor 15, at spiral
In carrier 15, the adsorbent being desorbed completely and cooling water countercurrent flow.Adsorbent after heat exchange enters adsorbent tank 1.
In embodiments of the present invention, have employed double-fluidized-bed combinative structure, it is achieved that the adsorption and desorption of adsorbent, regeneration
And cooling, technique is simple, easy to operate, economical reliable.Also use double U valve returning charge, by the Boiler pressure control of loosening wind
Return the amount of the adsorbent of adsorbent fluidization bed 4 and the regenerated fluidized bed 11 of entrance.
The embodiment of the present invention, can realize the industrial continuous and steady operation of absorption.In fluidised bed adsorption reactor, adsorbent is in
Fluidized state, long-pending with fluid contact level big, equipment is little, and production capacity is big, has good mass transfer and heat transfer property.
Processing method referring to Fig. 1 and Fig. 2 description fluidized bed gas adsorption/desorption system according to embodiments of the present invention.
Processing method according to embodiments of the present invention, is applied to fluidized bed gas according to the above embodiment of the present invention absorption de-
Attached system 100, repeats no more the structure of fluid bed gas absorption desorption system 100 here.
Specifically, see figures.1.and.2, the process side of fluidized bed gas adsorption/desorption system according to embodiments of the present invention
Method, comprises the steps:
Adsorbent fluidization bed 4 is imported adsorbent by adsorbent entrance c, is imported pending gas by pending gas entrance b,
In adsorbent fluidization bed 4, the adsorbent of fluidisation mixes with pending gas and adsorbs the target component in pending gas；
Adsorbent and admixture of gas after absorption are flowed to absorption side gas-solid separator 6 by the first mixture outlet e, separate
After adsorbent be discharged in feeding-distribution device 8 from absorption side solids outlet port f, the place after separation regulate the flow of vital energy from from regulate the flow of vital energy outlet
G discharges；
The adsorbent that feeding-distribution device 8 is discharged into is distributed to adsorbent fluidization by the first returning charge entrance d and the second returning charge entrance o
Bed 4 and regenerated fluidized bed 11；
Regenerated fluidized bed 11 imports stripping gas by stripping gas entrance p, the stripping gas of importing with from the second returning charge entrance o
The adsorbent imported adsorbs the target component in adsorbent after being sufficiently mixed；
Adsorbent and admixture of gas after desorption are flowed to desorption side gas-solid separator 13 by the second mixture outlet q, separate
After adsorbent from desorption side solids outlet port r discharge, the stripping gas after separation from stripping gas outlet t discharge.
Thus, the processing method of fluidized bed gas adsorption/desorption system according to embodiments of the present invention, improves disposal ability.
The seriality of adsorption/desorption can be realized, alleviate the labor intensity of adsorbent transfer operation, improve adsorption efficiency and absorption
Economy.
In the concrete example of shown in Fig. 1, the processing method of fluidized bed gas adsorption/desorption system comprises the following steps:
1, the pending gas needing adsorption treatment enters adsorbent fluidization bed 4, adsorbent fluidization bed 4 end bottom adsorbent fluidization bed 4
Portion is provided with absorption side air distribution plate 5, and for the pending gas of current-sharing, the adsorbent within adsorbent fluidization bed 4 is fluidized by fluid,
Fluid and adsorbent contact mass transfer in adsorbent fluidization bed 4, target component adsorbs on porous adsorbent surface；
2, the fluid after adsorption treatment is discharged by adsorbent fluidization bed 4 top, through cyclone separator, the absorption carried by fluid
Agent separates, and the adsorbent separated enters sub-material U valve 81；
3, the adsorbent separated enters sub-material U valve 81, and adsorbent is by the intermediate cavity in sub-material U valve 81 respectively
Enter left and right intracavity, loosen wind U valve air distribution plate 9 bottom chamber, left and right to adsorbent fluidization bed 4 and regenerated fluidized bed 11
Send into adsorbent, by controlling to loosen the air quantity of wind, can control return adsorbent fluidization bed 4 and enter regenerated fluidized bed 11
The amount of adsorbent；
4, adsorb saturated adsorbent to regenerate in regenerated fluidized bed 11, use the noble gas of hot steam or heat again
Raw, the adsorbent after regeneration separates through cyclone separator；
5, the adsorbent regenerated completely, returns adsorbent tank 1 after entering auger conveyor 15, inhale after cyclonic separation
Adsorbent in attached dose of storage tank 1 is sent into adsorbent fluidization bed 4 by feed auger 3, can supplement in adsorbent tank 1 in good time
Fresh adsorbent.
Thus, the processing method of this fluidized bed gas adsorption/desorption system has a plurality of advantages:
1) present invention uses fluid bed as adsorbent and the reactor of desorption and regeneration, uses U valve to realize adsorbent
Continuous adsorption and desorption, regenerate and be dried, easy to operate, system can meet different load work requirements, mechanization journey
Degree height, labor intensity is little；
2) adsorbent in fluid bed is in fluidized state, and gas-solid contact area is big, and mass transfer rate is high, the profit of adsorbent
High by efficiency, uniformity of temperature profile in bed；
3) fluid unit volume is little, and empty tower gas velocity is big, and production capacity is big, and it is simple that adsorption/desorption processes technique, operation side
Just；
4), for relatively moving bed, can be prevented effectively between adsorbent and force the mobile broken and abrasion caused, for relatively fixed bed,
The Fragmentation Phenomena that bottom fixed bed, activated carbon produces can be prevented effectively from because activated carbon piles up；
5) air distribution plate in fluid bed and U valve is arranged certain tapering, can effectively prevent cloth bottom fluid bed and U valve
Expect uneven and produce local adsorbent and pile up.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " on ", D score, " left ",
The orientation of the instruction such as " right ", " vertically ", " level ", " top ", " end ", " interior ", " outward " or position relationship are for based on accompanying drawing institute
The orientation shown or position relationship, be for only for ease of the description present invention and simplify description rather than instruction or imply indication
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the present invention
Restriction.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed
Or implicitly include one or more this feature.In describing the invention, except as otherwise noted, " multiple "
It is meant that two or more.
In describing the invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ",
" fix " and should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can
To be mechanical connection, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can
To be connection or the interaction relationship of two elements of two element internals.For those of ordinary skill in the art
Speech, can understand above-mentioned term concrete meaning in the present invention with concrete condition.
In the description of this specification, the description of reference term " embodiment ", " example " etc. means combine this embodiment or show
Specific features, structure, material or feature that example describes are contained at least one embodiment or the example of the present invention.?
In this specification, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, describe
Specific features, structure, material or feature can be with suitably side in any one or more embodiments or example
Formula combines.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: do not taking off
In the case of the principles and objective of the present invention, these embodiments can be carried out multiple change, revise, replace and modification,
The scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. a fluidized bed gas adsorption/desorption system, it is characterised in that including:
Adsorbent fluidization bed, described adsorbent fluidization bed accessory has adsorbent entrance, pending gas entrance, the first returning charge entrance and
One mixture outlet；
Absorption side gas-solid separator, described absorption side gas-solid separator is connected to import absorption with described first mixture outlet
After adsorbent and admixture of gas, described absorption side gas-solid separator has place and regulates the flow of vital energy outlet and absorption side solid is discharged
Mouthful；
Regenerated fluidized bed, described regenerated fluidized bed accessory has the second returning charge entrance, stripping gas entrance and the second mixture outlet；
Desorption side gas-solid separator, described desorption side gas-solid separator is connected to import desorption with described second mixture outlet
After adsorbent and admixture of gas, described desorption side gas-solid separator has stripping gas outlet and desorption side solid is discharged
Mouthful；
Feeding-distribution device, described feeding-distribution device has charging aperture, absorption side sub-material outlet and the sub-material outlet of desorption side, described in enter
Material mouth is connected with described absorption side solids outlet port, and sub-material outlet in described absorption side is connected with described first returning charge entrance, institute
State the sub-material outlet of desorption side to be connected with described second returning charge entrance.
Fluidized bed gas adsorption/desorption system the most according to claim 1, it is characterised in that described feeding-distribution device bag
Including: sub-material U valve, limit valve pocket in described sub-material U valve, described valve pocket includes spaced apart snout cavity, absorption side
Sub-material chamber and desorption sub-material chamber, side, described snout cavity is divided with sub-material chamber, described absorption side and desorption side by connection aperture respectively
Material chamber is connected；Wherein,
Described charging aperture, the sub-material outlet of absorption side and the sub-material outlet of desorption side are respectively provided on described sub-material U valve, and described
Charging aperture is connected with described snout cavity, and sub-material outlet in described absorption side is connected with sub-material chamber, described absorption side, described de-
The sub-material outlet of attached side is connected with sub-material chamber, described desorption side, and described sub-material U valve is additionally provided with for being blown into described valve pocket
Loosen the sub-material gas entrance of wind.
Fluidized bed gas adsorption/desorption system the most according to claim 2, it is characterised in that described sub-material U valve
Including vertically arranged baffle assembly, described baffle assembly be located in described valve pocket with by exit port chamber, described valve pocket interval,
Absorption sub-material chamber, side and desorption sub-material chamber, side, the bottom of described baffle assembly is spaced apart with the diapire of described valve pocket to limit
Described connection aperture.
Fluidized bed gas adsorption/desorption system the most according to claim 2, it is characterised in that described sub-material U valve
Sub-material chamber, upper correspondence described absorption side and sub-material chamber, described desorption side are respectively equipped with described sub-material gas entrance.
Fluidized bed gas adsorption/desorption system the most according to claim 3, it is characterised in that described snout cavity is positioned at
Between sub-material chamber, described absorption side and sub-material chamber, described desorption side, the diapire of described valve pocket is provided with corresponding described snout cavity
Separating table, the upper surface of described separating table is formed as plane or convex surface protruding upward.
Fluidized bed gas adsorption/desorption system the most according to claim 2, it is characterised in that described absorption side sub-material
Outlet is connected with described first returning charge entrance by the first sub-feed tube, returns exporting to described first from described absorption side sub-material
On the direction of material entrance, the described first downward-sloping extension of sub-feed tube, the angle between described first sub-feed tube and vertical plane
It is 15 degree of-45 degree；
The sub-material outlet of described desorption side is connected with described second returning charge entrance by the second sub-feed tube, is dividing from described desorption side
Material exports on the direction of described second returning charge entrance, the described second downward-sloping extension of sub-feed tube, described second sub-feed tube
And the angle between vertical plane is 15 degree of-45 degree.
Fluidized bed gas adsorption/desorption system the most according to claim 1, it is characterised in that described adsorbent fluidization bed
Inside being provided with absorption side air distribution plate, described pending gas entrance is positioned at the lower section of described absorption side air distribution plate, and described adsorbent
Entrance, described first returning charge entrance and described first mixture outlet are positioned at the top of described absorption side air distribution plate, described suction
Attached side air distribution plate is formed as downwardly projecting cone plate, and the cone element of described absorption side air distribution plate with the angle of horizontal plane is
10 degree of-20 degree；
Being provided with desorption side air distribution plate in described regenerated fluidized bed, described stripping gas entrance is positioned under the air distribution plate of described desorption side
Side, described second returning charge entrance and described second mixture outlet are positioned at the top of described desorption side air distribution plate, described desorption
Side air distribution plate is formed as downwardly projecting cone plate, and the cone element of described desorption side air distribution plate and the angle of horizontal plane are 10
Degree-20 degree.
Fluidized bed gas adsorption/desorption system the most according to claim 1, it is characterised in that also include adsorbent storage
Tank, the discharging opening of described adsorbent tank is connected with described adsorbent entrance by feed auger.
Fluidized bed gas adsorption/desorption system the most according to claim 1, it is characterised in that also include cooler,
Limiting adsorbent heat exchanger channels and coolant heat exchanger channels in described cooler, the two ends of described adsorbent heat exchanger channels are divided
It is not connected with described desorption side solids outlet port and described adsorbent entrance.
10. the process being applied to according to the fluidized bed gas adsorption/desorption system according to any one of claim 1-9
Method, it is characterised in that comprise the steps:
Described adsorbent fluidization bed is imported adsorbent by described adsorbent entrance, is imported by described pending gas entrance and wait to locate
Regulating the flow of vital energy, in described adsorbent fluidization bed, the adsorbent of fluidisation mixes with pending gas and adsorbs the target component in pending gas；
Adsorbent and admixture of gas after absorption are flowed to described absorption side gas-solid separator by described first mixture outlet,
Adsorbent after separation is discharged in described feeding-distribution device from described absorption side solids outlet port, regulates the flow of vital energy from described in the place after separation
Place regulate the flow of vital energy outlet discharge；
The adsorbent that described feeding-distribution device is discharged into is distributed to institute by described first returning charge entrance and described second returning charge entrance
State adsorbent fluidization bed and described regenerated fluidized bed；
Described regenerated fluidized bed by described stripping gas entrance import stripping gas, the stripping gas of importing with from described second returning charge
The adsorbent that entrance imports adsorbs the target component in adsorbent after being sufficiently mixed；
Adsorbent and admixture of gas after desorption are flowed to described desorption side gas-solid separator by described second mixture outlet,
Adsorbent after separation is discharged from described desorption side solids outlet port, and the stripping gas after separation is arranged from described stripping gas outlet
Go out.
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