CN1415909A - Multistage method for dehumidifying liquid - Google Patents
Multistage method for dehumidifying liquid Download PDFInfo
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- CN1415909A CN1415909A CN 02144128 CN02144128A CN1415909A CN 1415909 A CN1415909 A CN 1415909A CN 02144128 CN02144128 CN 02144128 CN 02144128 A CN02144128 A CN 02144128A CN 1415909 A CN1415909 A CN 1415909A
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- 239000007788 liquid Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 31
- 239000007789 gas Substances 0.000 claims description 38
- 239000000945 filler Substances 0.000 claims description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 238000013508 migration Methods 0.000 claims description 5
- 230000005012 migration Effects 0.000 claims description 5
- 239000003345 natural gas Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 238000007791 dehumidification Methods 0.000 abstract description 8
- 230000007704 transition Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 239000012530 fluid Substances 0.000 description 11
- 239000000498 cooling water Substances 0.000 description 8
- 239000002826 coolant Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 101150026303 HEX1 gene Proteins 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 4
- 239000002274 desiccant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229940059936 lithium bromide Drugs 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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Abstract
This invention relates to a multistage solution dehumidification method characterizing the solution dehumidification is classified into two or more stages, each stage solution circulates independently with different concentration, yet single-way transition exists between stages from high to low density and the most condensed solution stage is supplemented a certain amount of solution from outside and the weak solution stage exhausts a certain amount of solution, then the being processed gas will be dried via stages. This invention utilizes various cooling and gas-liquid contact way flexiblely.
Description
Technical field
The present invention relates to a kind of multistage method for dehumidifying liquid, belong to the air-conditioning technique field.
Background technology
Traditional liquid dehumidifying generally has only one-level, adopts the gas-liquid way of contact of adverse current or distributary, and shown in accompanying drawing 1, accompanying drawing 2,1 is pending gas, and 2 is the gas of handling; 3 is weak solution, flows into the regenerator (not shown); 4 is concentrated solution, from regenerator; 5 are the dehumidifying circulation fluid, can consider dehumidifying liquid is cooled off (not shown cooling fluid and heat exchanger) in cyclic process; 10 is the adverse current dehumidifier; 20 is the distributary dehumidifier.
Because dehumidifying liquid is constantly circulation, its effective solution concentration is the concentration of weak solution in the liquid bath of dehumidifier bottom, rather than the concentration of the concentrated solution that flows out from regenerator.
Typical situation comprises the liquid dehumidifier of U.S. Kathabar company and the dehumidifier of Israel Drykor company, and the former is an adverse current, and the latter is a distributary.
Chinese patent CN98811237.X " dehumidifier system " and CN00804974.2 " dehumidifier and air handling system " have described the dehumidifier product of Drykor company.
The patent of other relevant liquid dehumidifying comprises: CN97115278.0 " air conditioning method and equipment thereof "; CN98812934.5 " liquid desiccant dehumidifier and air-conditioner "; US6216489 and 6216483 " liquid desiccant air conditioner "; US6156102 and US6138470 " Portable liquid desiccant dehumidifier " and US5351497 " low-flow internally-cooled liquid desiccant absorber " etc. all adopt the one-level dehumanization method.
The shortcoming of level liquid dehumidifying is conspicuous: can not form effective countercurrent mass transfer and conduct heat, more can not adopt asymmetrical heat transfer (cooling) mode to make full use of natural cooling source, can not adopt different gas-liquid mass transfer means and heat transfer (cooling) means at different gas conditions.Its dehumidification rate is lower; Dense rare dehumidification solution concentration difference is little, and the solution exchange capacity between regenerator and the dehumidifier is big, and the load that conducts heat is big, causes effectiveness of regenerator to descend, and regenerator is difficult for realizing multistage regeneration.The dehumidifier volume is big, and the heat and mass area is big.Also be difficult for simultaneously the mass dryness fraction of handling air is regulated.
Summary of the invention
The purpose of this invention is to provide a kind of energy flexible modulation and handle the mass dryness fraction of back gas, raise the efficiency, reduce the multistage method for dehumidifying liquid that conducts heat and load.
The present invention is multistage method for dehumidifying liquid, it is characterized in that: liquid dehumidifying is divided into two-stage or more than the two-stage, every grade liquid independent loops, the concentration of every grade of liquid is difference all, but has the unidirectional migration of solution between level and the level, is promptly moved to the low level of solution concentration by the high level of solution concentration, the level that solution concentration is the highest is replenished certain quantity solution by the external world, the rare level of solution concentration is discharged certain solution to the external world, thereby with pending gas, becomes dry gas by backs at different levels.
Described pending gas can by constantly dry, form the countercurrent heat-transfer mass transfer successively by at different levels.
Described circulation solution at different levels can be selected to adopt the different types of cooling or not adopt cooling, forms asymmetrical heat and mass.
Described pending gas can be from sucking with one-level, from one-level or discharge not at the same level.
Described pending gas can suck from different levels, from one-level or discharge not at the same level.
Described gas-liquid mass transfer at different levels can adopt modes such as spray or filler.
Described pending gas can be air or natural gas, compressed air etc.
So-called countercurrent heat-transfer mass transfer, symmetrical in other words heat and mass is meant that the heat and mass distribution meets or near the countercurrent heat-transfer mass transfer, promptly heat and mass power is even, not representing fluid must be reverse flow.So-called asymmetric heat and mass is meant that heat and mass power is inhomogeneous, does not meet the countercurrent heat-transfer mass transfer and distributes.
The present invention is directed to problems of the prior art, a kind of multistage method for dehumidifying liquid is provided, its efficient height, the heat and mass area is little, can the various types of cooling of flexible utilization and the gas-liquid way of contact, and can be optimized at various gas condition.Gas dew point after the dehumidifying is low, and can regulate the mass dryness fraction of handling the back air neatly.Especially concentrate regenerator to match with regenerator, the solution amount of required regeneration greatly reduces, and helps improving the efficient of regenerator, the energy consumption of reduce to conduct heat load and solution pump etc.; Also be beneficial to simultaneously the concentrated regeneration of realization accumulation of energy and solution etc.The present invention can be used for the mass dryness fraction of gases such as air, natural gas, compressed air and regulates.
Description of drawings
Fig. 1 is an one-level adverse current liquid dehumidification principle schematic diagram in the prior art;
Fig. 2 is an one-level distributary liquid dehumidifying principle schematic in the prior art;
Fig. 3 is a multistage liquid dehumidifying principle schematic of the present invention;
Fig. 4 is the mass-and heat-transfer distribution map of symmetry;
Fig. 5 is asymmetrical mass-and heat-transfer distribution map;
Fig. 6 is a kind of typical embodiments schematic diagram of the present invention;
Fig. 7 is an another kind of typical embodiments schematic diagram of the present invention;
Fig. 8 is an A-A face structure cutaway view shown in Figure 7;
Fig. 9 is a B-B face structure cutaway view shown in Figure 7;
Figure 10 is another typical embodiments schematic diagram of the present invention;
Figure 11 is an A-A face structure cutaway view shown in Figure 8;
Figure 12 is a B-B face structure cutaway view shown in Figure 8;
Figure 13 is a specific embodiments schematic diagram shown in Figure 6.
The specific embodiment
Below in conjunction with accompanying drawing prior art and the specific embodiment of the present invention are further described:
Fig. 1 and Fig. 2 are typical level liquid dehumidification principle figure in the prior art.Fig. 1 is the mode of gas-liquid counter current contact, and the circulation fluid 5 among the figure can adopt the cooling medium cooling, and is not shown.As can be seen from the figure, because circulation fluid 5 circulates, though gas-liquid is a counter current contacting, real countercurrent mass transfer dehumidifies and is unrealized.
Fig. 2 is the mode of gas-liquid distributary contact, more impossible certainly realization countercurrent heat-transfer mass transfer.
Need to prove that the flow of circulation fluid 5 is compared with the flow of concentrated solution 3 or weak solution 4, big several times or an order of magnitude, therefore contact with gas in the circulation of (from top to bottom) at solution, solution concentration changes very little.
Among Fig. 3, dehumidifier 30 is divided into I, II, III, IV level Four (the invention is not restricted to level Four), though each level is distributary, because solution concentration at different levels is different, level Four combines, and cooperates corresponding circulation fluid 5 types of cooling, can realize the countercurrent heat-transfer mass transfer.
Pending gas, promptly hot and humid gas 1 is introduced into the I level, successively by at different levels, becomes dry gas 2 at last then.Each level all has its independently circulation fluid 5, and its concentration is respectively C1, C2, C3, C4.
C1＜C2＜C3＜C4 meets the principle of countercurrent mass transfer, the solution that the gas that promptly water capacity is high is corresponding rare, the corresponding dense solution of gas that water capacity is low.Can adopt the different types of cooling or cooling medium, the type of cooling of not shown circulation fluid respectively for each grade.If the layout of cooling medium also makes up according to counterflow principle, it is the coolant temperature height of the first order, the coolant temperature of afterbody is low, this just makes whole dehumidification process 1 → 2 conduct heat near desirable countercurrent mass transfer, promptly symmetrical heat and mass as shown in Figure 4 distributes and (with respect to non-new heat and mass is distributed, as shown in Figure 5).
In Fig. 4, Fig. 5, Ta, Pa are represented as respectively that 1 → 2 gas temperature distributes and the dividing potential drop of steam distributes.On behalf of the Temperature Distribution of dehumidifying liquid and the dividing potential drop of steam, Tla, Pla distribute the level that I, II, III, IV are corresponding different respectively respectively.As seen from Figure 4, the mass-and heat-transfer power between the gas-liquid distributes and meets the principle of countercurrent heat-transfer mass transfer.
Return Fig. 3, the concentrated solution that 3 representatives replenish in the IV level, the weak solution that 4 representatives are flowed out from the I level, 6 be at different levels between the solution of migration, solution grade is moved to the low concentration level by high concentration.
What deserves to be explained is that it is big that the flow of each circulation fluid 5 moves solution 6, concentrated solution 3, weak solution 4, the total flow of circulation fluid 5 in level Four moved solution 6, concentrated solution 3, weak solution 4 big several times or orders of magnitude.
Fig. 5 is that an asymmetrical mass-and heat-transfer distributes.As shown in the figure, solution mean temperature in I, II, the III level is identical (being different during symmetrical distribution), this is because under certain conditions, all adopt as I, II, III level under the situation of natural cooling source cooling, I, II, III level can adopt same natural cooling source to obtain same solution temperature and can not increase extra cost, certainly Pla still is different, and this is that cost is arranged because of concentrated solution.More asymmetric heat and mass distributes and symmetrical heat and mass distributes, and the former heat and mass power is big.
Return Fig. 1, if under some certain conditions, if the flow of circulation fluid 5 is identical with the flow of concentrated solution 3, the two can unite two into one, ie in solution is directly introduced from the top of dehydrating unit, the countercurrent mass transfer that can realize ideal this moment conducts heat and distributes, but still can not realize that asymmetrical mass-and heat-transfer distributes.
If also be divided into plurality of sections with 1 → 2, the mean temperature of every section solution is different, and can not be as shown in Fig. 3, and former sections solution mean temperature is identical.
In a word, the present invention can realize that not only the countercurrent heat-transfer mass transfer distributes, and can realize that also asymmetric heat and mass distributes, and in a lot of occasions, helps making full use of nature or free low-temperature receiver, increases mass-and heat-transfer power.
1 ', 2 ' represents respectively that pending gas 1 is can be never at the same level and introduces or dried gas 2 ' is never at the same level discharges among Fig. 3, realizing symmetrical heat and mass or asymmetric heat and mass, or handles the different gas gas different with generation neatly.
The gas-liquid mass transfer heat transfer types at different levels and the relevant type of cooling can be in different ways or its hybrid mode among Fig. 3.
Fig. 6, Fig. 7, Figure 10 have represented three kinds of typical way respectively, and more other modes can also be arranged certainly, or its hybrid mode, promptly not at the same level can be in different ways, but all do not exceed scope of the present invention.
Fig. 6 is a typical countercurrent mass transfer heat transfer distribution implementation.Pending air 1 contacts with Pd1, Pd2, Pd3, Pd4 level Four successively, becomes dry air 2 at last.Pd1 to Pd4 is a filler, therewith to solution pump Pl1 to P14 should be arranged, solution pump Pl1 is delivered to the solution in the Pd1 bottom and introduces from Pd1 top after heat exchanger Hex1 cools off, by suitable liquid distribution trough (not shown) distribution solution, solution contacts with gas in filler, realizes heat and mass, relies on gravity current to the bottom then, finish the circulation of this grade solution, other level is identical therewith.The effect of filler Pd2, Pd3, Pd4 is identical with Pd1, and heat exchanger Hex2, Hex3, Hex4 are identical with the effect of Hex1, and solution pump Pl2, Pl3, Pl4 are identical with Pl1.
What deserves to be explained is that the filler among the figure between at different levels arranges and separate that this mainly is for the Fang Ming that illustrates, in fact in most cases is close to.Be more in addition, not shown at different levels between the migration of solution, and from the concentrated solution of the outside Pd4 of inflow and the weak solution that flows out from Pd1.
The side of Hex1 is a solution, and opposite side is a cooling water, from Pc4.Pc1 to Pc4 also is a filler.Refrigerating gas contacts in Pc4 with cooling water, and cooling water obtains cooling.Pw4 is a water pump, and Pw4 is delivered to Hex1 with the cooling water of Pc4 bottom, gets back to the Pc4 top after cooling water is heated, and by being evenly distributed on behind the liquid distributor among the Pc4, itself and refrigerating gas carry out flowing into the Pc4 bottom behind the heat and mass, finish a circulation.
Other level is identical therewith, and the effect of Pc1, Pc2, Pc3 is identical with Pc4, and Pw1, Pw2, Pw3 are identical with the Pw4 effect.C1 is a refrigerating gas, and C2 is through the hot and humid gas behind Pc1, Pc2, Pc3, the Pc4 heat and mass at different levels.Also not shown in FIG. at different levels between the replenishing and discharging of the migration of water and water.
What deserves to be explained is, generally need that water is moved to the low level of temperature by the high level of temperature in the Pc4 supplementing water.Need in addition regularly the water emptying to be renewed water, to prevent the accumulation of water mineral too much.
Fig. 7 is a kind of typical asymmetric heat and mass implementation.Be divided into 5 grades among Fig. 7,40 is dehumidifier, it is by cooling duct 7 and remove wet channel 8 etc. and form, shown in Fig. 8,9, in cooling duct 7, gas and water two media are arranged, water flows into bottom tank Bw1, Bw2, Bw3, Bw4, Bw5 along conduit wall, water is flowing through its surperficial air evaporation absorption heat, cooling and dehumidifying passage.Water in the passage is to circulate by water pump, and is not shown.
Other level is identical with the first order, and C1-2, C1-3, C1-4, C1-5 are identical with the C1-1 function, C2-2, C2-3, C2-4, C2-5 correspondence C2-1.
In removing wet channel 8, be divided into 5 grades, but the mobile of air is continuous, promptly remove in the wet channel 8 physical isolation and classification facility are not arranged, but corresponding different levels have different solution tanks, are respectively Bd1, Bd2, Bd3, Bd4, Bd5, its solution concentration difference, Bd1 solution concentration minimum, Bd5 solution concentration maximum.
In removing wet channel 8, corresponding cooling duct at the same level is not at the same level.What pending air 1 was continuous becomes dry air 2 by different levels successively, solution concentration in not at the same level is different, its dehumidifying is by solution is evenly distributed on the wall, absorption flows through that the moisture of dehumidifying in the channel air realizes, and the heat that produces in the dehumidification process is delivered to the cooling duct.Dehumidifying liquid circulates by the solution pump (not shown).The cloth liquid of dehumidifying liquid is not shown.The detailed structure of concrete dehumidifier 40 does not also illustrate in the drawings, and Fig. 7, Fig. 8 and Fig. 9 have reflected the basic principle of dehumidifier 40.
Figure 10 is the third typical implementation of the present invention, the scheme of its basic structure and Fig. 7 is similar, and difference is: the medium of cooling duct 7 is gas and water among Fig. 7, and water evaporates the heat of absorption dehumidifying passage in gas, and in Figure 10, the medium in its cooling duct is a water.In Figure 10, the water in its each grade cooling duct is independent loops, as in the first order, cooling water W1-1 enters into the cooling duct, through shown in the direction of arrow among Figure 10 several up and down back and forth, behind the heat in the absorption dehumidifying passage, discharge after becoming W2-1.
As shown in Figure 10, in the cooling duct 7 of each grade, need be divided into several sections, be beneficial to cooling water and flow by illustrated direction.
Other grade is identical with the situation of the first order, and cooling water W1-2, W1-3, W1-4, W1-5 be corresponding W1-1 respectively, and W2-2, W2-3, W2-4, W2-5 corresponding W2-1 respectively.A-A, B-B face among the corresponding Figure 10 of Figure 11, Figure 12 difference.Equally, Figure 10, Figure 11 and Figure 12, similar with Fig. 7, Fig. 8, Fig. 9, just reflected the basic condition of dehumidifier 50, not shown concrete detailed structure.
Figure 13 is an example of calculation shows of method shown in Figure 6, indicated pending air 1 original state temperature among the figure, through state temperature and end-state temperature after at different levels, also indicated the original state temperature of cooling air simultaneously, through state temperature and end-state temperature after at different levels.DB represents dry-bulb temperature, and WB represents wet-bulb temperature, and RH represents relative humidity.
Do not provide the kind and the concentration thereof of solution among Figure 13, the solution that uses among Figure 13 is lithium-bromide solution, and its maximum concentration is that strong solution concentration is 58%, and least concentration is that the concentration of weak solution is 50%.
Claims (7)
1. multistage method for dehumidifying liquid, it is characterized in that: liquid dehumidifying is divided into two-stage or more than the two-stage, every grade liquid independent loops, the concentration of every grade of liquid is difference all, but has the unidirectional migration of solution between level and the level, is promptly moved to the low level of solution concentration by the high level of solution concentration, the level that solution concentration is the highest is replenished certain quantity solution by the external world, the rare level of solution concentration is discharged certain solution to the external world, thereby with pending gas, becomes dry gas by backs at different levels.
2. by the described multistage method for dehumidifying liquid of claim 1, it is characterized in that described pending gas,, form the countercurrent heat-transfer mass transfer by constantly dry successively by at different levels.
3. by the described multistage method for dehumidifying liquid of claim 1, it is characterized in that described circulation solution at different levels selects to adopt the different types of cooling or do not adopt cooling, form asymmetrical heat and mass.
4. by claim 1 or 2,3 described multistage method for dehumidifying liquid, it is characterized in that described pending gas from sucking, from one-level or discharge not at the same level with one-level.
5. by claim 1 or 2,3 described multistage method for dehumidifying liquid, it is characterized in that described pending gas sucks from different levels, from one-level or discharge not at the same level.
6. by claim 1 or 2,3,4 described multistage method for dehumidifying liquid is characterized in that described gas-liquid mass transfer at different levels adopts modes such as spray or filler.
7. by claim 1 or 2,3 described multistage method for dehumidifying liquid, it is characterized in that described pending gas is air or natural gas, compressed air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02144128 CN1185447C (en) | 2002-09-28 | 2002-09-28 | Multistage method for dehumidifying liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02144128 CN1185447C (en) | 2002-09-28 | 2002-09-28 | Multistage method for dehumidifying liquid |
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| Publication Number | Publication Date |
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| CN1415909A true CN1415909A (en) | 2003-05-07 |
| CN1185447C CN1185447C (en) | 2005-01-19 |
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| CN 02144128 Expired - Lifetime CN1185447C (en) | 2002-09-28 | 2002-09-28 | Multistage method for dehumidifying liquid |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052715A (en) * | 2010-12-15 | 2011-05-11 | 上海交通大学 | Multi-stage M-shaped air way liquid desiccant dehumidification air-conditioning system utilizing ultrasonic atomization technology |
| CN102679469A (en) * | 2012-04-27 | 2012-09-19 | 上海交通大学 | Ultrasonic atomization liquid dehumidifying air-conditioning system with spiral channel and pretreatment function |
| CN101747948B (en) * | 2008-12-05 | 2014-07-02 | 山东恒能环保能源设备有限公司 | Treatment process for dehumidifying combustible gases in expansion way |
| CN114904373A (en) * | 2022-05-09 | 2022-08-16 | 江苏科技大学 | Carbon dioxide dryer for flue gas carbon capture |
-
2002
- 2002-09-28 CN CN 02144128 patent/CN1185447C/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101747948B (en) * | 2008-12-05 | 2014-07-02 | 山东恒能环保能源设备有限公司 | Treatment process for dehumidifying combustible gases in expansion way |
| CN102052715A (en) * | 2010-12-15 | 2011-05-11 | 上海交通大学 | Multi-stage M-shaped air way liquid desiccant dehumidification air-conditioning system utilizing ultrasonic atomization technology |
| CN102052715B (en) * | 2010-12-15 | 2013-06-19 | 上海交通大学 | Multi-stage M-shaped air way liquid desiccant dehumidification air-conditioning system utilizing ultrasonic atomization technology |
| CN102679469A (en) * | 2012-04-27 | 2012-09-19 | 上海交通大学 | Ultrasonic atomization liquid dehumidifying air-conditioning system with spiral channel and pretreatment function |
| CN102679469B (en) * | 2012-04-27 | 2014-08-27 | 上海交通大学 | Ultrasonic atomization liquid dehumidifying air-conditioning system with spiral channel and pretreatment function |
| CN114904373A (en) * | 2022-05-09 | 2022-08-16 | 江苏科技大学 | Carbon dioxide dryer for flue gas carbon capture |
| CN114904373B (en) * | 2022-05-09 | 2023-10-03 | 江苏科技大学 | Carbon dioxide dryer for capturing carbon in flue gas |
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| Publication number | Publication date |
|---|---|
| CN1185447C (en) | 2005-01-19 |
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Denomination of invention: Multistage method for dehumidifying liquid Effective date of registration: 20170717 Granted publication date: 20050119 Pledgee: Jiangsu Wujin credit Company limited by guarantee Pledgor: Liu Shuanqiang Registration number: 2017990000642 |
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Granted publication date: 20050119 |