CN103170235A - Method and device for recycling carbon dioxide-containing waste gas based on carbon dioxide hydrate - Google Patents
Method and device for recycling carbon dioxide-containing waste gas based on carbon dioxide hydrate Download PDFInfo
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- CN103170235A CN103170235A CN2011104334027A CN201110433402A CN103170235A CN 103170235 A CN103170235 A CN 103170235A CN 2011104334027 A CN2011104334027 A CN 2011104334027A CN 201110433402 A CN201110433402 A CN 201110433402A CN 103170235 A CN103170235 A CN 103170235A
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Abstract
The invention discloses a method and a device for recycling carbon dioxide-containing waste gas based on carbon dioxide hydrate. The method comprises the following steps of: (1), cooling carbon dioxide-containing waste gas to -80 DEG C to -90 DEG C; and (2), using water to spray mist in a reaction container and cooling the mist to form fine ice, inflowing the cooled carbon dioxide-containing waste gas to the reaction container, so that the carbon dioxide-containing waste gas and the fine ice react to generate carbon dioxide hydrate. The device comprises a cooling cooler and a reaction tower, wherein a gas inlet and a gas outlet are formed on the reaction tower; the gas inlet is communicated with the cooling cooler; an atomizer and a fine ice generator are arranged above the reaction tower; the fine ice generator is used for cooling the mist sprayed by the atomizer to form fine ice; the reaction tower is arranged below the atomizer; and a hydration reaction bed unit for generating carbon dioxide hydrate by reacting the carbon dioxide-containing waste gas and the fine ice is arranged below the atomizer on the reaction tower. The method and the device for recycling carbon dioxide-containing waste gas based on carbon dioxide hydrate disclosed by the invention can be used for recycling low-concentration carbon dioxide-containing waste gas, and have the advantages of being low in energy consumption and simple in process.
Description
Technical field
The present invention relates to the recovery field of carbonated waste gas, be specifically related to a kind of carbonated gas recovery method and device based on carbon dioxide hydrate.
Background technology
The mankind never obtain so swift and violent development as 20th century, but also never meet with so many suffering as 20th century.Its Air Contamination, greenhouse effects one of the most direct arch-criminal are exactly carbon dioxide.For reversing the trend of global warming, reduce " greenhouse effects ", stay the next one can supply environment and the space of existence, sustainable development to the descendants, the discharging of minimizing and restriction carbon dioxide has become the common recognition of various countries, the whole world.CO2 emissions have become the administrative index of various countries governments at all levels, if therefore effectively reduce the technical problem that CO2 emission has become popular growing interest.
The carbonated gas recovery method generally adopts Physical, chemical method, different fusing point, the boiling point characteristics of composition in Physical general using hydrogen production exhaust gas at present; The chemistry rule utilizes the chemical characteristic of hydrogen production exhaust gas composition to realize the separation recovery of composition.But in general, present carbonated gas recovery method is higher for the concentration requirement of carbonated waste gas, therefore caused middle low concentration in the recovery difficulty of carbonated waste gas, both do not meet the trend of current energy-saving and emission-reduction, directly had influence on country and governments at all levels to the strict control of CO2 emission yet.
Summary of the invention
The purpose of this invention is to provide a kind of recovery that can realize low concentration carbonated waste gas, energy resource consumption is low, technique is simply based on carbonated gas recovery method and the device of carbon dioxide hydrate.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of carbonated gas recovery method based on carbon dioxide hydrate, implementation step is as follows:
1) carbonated waste gas is cooled to-80 ℃～-90 ℃;
2) in reaction vessel with water spray and the fine ice of cooling generation of spray, in above-mentioned cooled carbonated waste gas inflow reaction vessel, make carbonated waste gas and the fine ice generation carbon dioxide hydrate that reacts.
As further improvement in the technical proposal:
Described step 2) particle diameter that generates fine ice in is 3 microns～7 microns.
A kind of carbonated waste gas recovering device based on carbon dioxide hydrate, comprise cooling cooler and reaction tower, described reaction tower is provided with air inlet and carbon dioxide hydrate outlet, described air inlet be connected with cooling cooler, described reaction tower top is provided with sprayer and is used for fine ice maker with the fine ice of the cooling generation of spraying of sprayer ejection, and the below that described reaction tower is positioned at sprayer is provided with the hydration reaction bed unit for generation carbon dioxide hydrate that carbonated waste gas and fine ice are reacted.
As further improvement in the technical proposal:
Described hydration reaction bed unit comprises the hydration reaction bed of a plurality of vertical distributions, and be provided be used to the transfer port that transmits fine ice between adjacent hydration reaction bed, and the surface of described hydration reaction bed is provided be used to stirring fine ice and fine ice being sent to the agitator of lower floor's hydration reaction bed by transfer port.
Described fine ice maker is column.
The bottom of described fine ice maker is provided with fine ice outlet, and described fine ice maker is connected with the inner chamber of reaction tower by fine ice outlet.
Described sprayer is located at the top of fine ice maker, and the side of described fine ice maker is provided with at least one cooling jacket.
Described cooling cooler is provided with by input one side the air compressor that will compress for inputting carbonated waste gas.
the carbonated gas recovery method that the present invention is based on carbon dioxide hydrate has following advantage: the present invention is by being cooled to carbonated waste gas-80 ℃～-90 ℃, then in reaction vessel with water spray and the fine ice of cooling generation of spraying, above-mentioned cooled carbonated waste gas is flowed in reaction vessel, make carbonated waste gas and the fine ice generation carbon dioxide hydrate that reacts, can effectively reclaim waste gas, particularly the carbonated waste gas of low concentration reclaims, the experiment proved that the content to carbon dioxide is the recovery of the industrial waste gas more than 5%, can make carbon dioxide purification concentration reach 99%, has energy resource consumption low, the simple advantage of technique.
Therefore the carbonated waste gas recovering device that the present invention is based on carbon dioxide hydrate also possesses owing to having with above-mentioned based on structure corresponding to the carbonated gas recovery method of carbon dioxide hydrate the corresponding advantage of carbonated gas recovery method that the present invention is based on carbon dioxide hydrate.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Marginal data: 1, cooling cooler; 11, air compressor; 2, reaction tower; 21, air inlet; 22, carbon dioxide hydrate outlet; 23, sprayer; 24, fine ice maker; 241, fine ice outlet; 242, cooling jacket; 25, hydration reaction bed unit; 251, hydration reaction bed; 252, transfer port; 253, agitator; 254, drive motors.
The specific embodiment
As shown in Figure 1, the implementation step based on the carbonated gas recovery method of carbon dioxide hydrate of the embodiment of the present invention is as follows:
1) carbonated waste gas is cooled to-80 ℃～-90 ℃;
2) in reaction vessel with water spray and the fine ice of cooling generation of spray, in above-mentioned cooled carbonated waste gas inflow reaction vessel, make carbonated waste gas and the fine ice generation carbon dioxide hydrate that reacts.
Wherein, the particle diameter that generates fine ice step 2) is 3 microns～7 microns.In the present embodiment, step 1) carbonated waste gas is cooled to-85 ℃, step 2) in generate fine ice particle diameter be 5 microns.
as shown in Figure 1, the embodiment of the present invention comprises cooling cooler 1 and reaction tower 2 based on the carbonated waste gas recovering device of carbon dioxide hydrate, reaction tower 2 is provided with air inlet 21 and carbon dioxide hydrate outlet 22, air inlet 21 be connected with cooling cooler 1, reaction tower 2 tops are provided with sprayer 23 and are used for fine ice maker 24 with the fine ice of the cooling generation of spraying of sprayer 23 ejections, the below that reaction tower 2 is positioned at sprayer 23 is provided with for carbonated waste gas and fine ice are reacted and generates the hydration reaction bed unit 25 of carbon dioxide hydrate.
Hydration reaction bed unit 25 comprises the hydration reaction bed 251 of a plurality of vertical distributions, and be provided with between adjacent hydration reaction bed 251 be used to the transfer port 252 that transmits fine ice, and the surface of hydration reaction bed 251 is provided be used to stirring fine ice and fine ice being sent to the agitator 253 of lower floor's hydration reaction bed 251 by transfer port 252, until discharge from carbon dioxide hydrate outlet 22.In the present embodiment, the corresponding agitator 253 of each hydration reaction bed 251, and a plurality of agitator 253 is by same drive motors 254 driven in synchronism.
Cooling cooler 1 is provided with by input one side the air compressor 11 that will compress for inputting carbonated waste gas.Air compressor 11 can compress input carbonated waste gas, and the pressure that compresses in the present embodiment is 2MPa, can improve the concentration of input carbonated waste gas, and is better for the carbonated exhaust-gas treatment effect of low concentration.
The operation principle of the present embodiment is as follows: carbonated waste gas at first input air compressor 11 is compressed, then be cooled to-85 ℃ in cooling cooler 1 after the input reaction tower 2.In reaction tower 2, the spraying of the sprayer 23 cooling particle diameter that becomes of chuck 242 that is cooled is 5 microns fine ice, then fall into hydration reaction bed 251 topmost, carbonated waste gas with input on hydration reaction bed 251 reacts, then pass through transfer port 252 successively toward falling under the stirring of agitator 253, react with the carbonated waste gas of inputting on each hydration reaction bed 251 successively, and finally discharge from carbon dioxide hydrate outlet 22.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited in above-mentioned embodiment, and every technical scheme that belongs to the principle of the invention all belongs to protection scope of the present invention.For a person skilled in the art, some improvements and modifications of carrying out under the prerequisite that does not break away from principle of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. carbonated gas recovery method based on carbon dioxide hydrate is characterized in that implementation step is as follows:
1) carbonated waste gas is cooled to-80 ℃～-90 ℃;
2) in reaction vessel with water spray and the fine ice of cooling generation of spray, in above-mentioned cooled carbonated waste gas inflow reaction vessel, make carbonated waste gas and the fine ice generation carbon dioxide hydrate that reacts.
2. the carbonated gas recovery method based on carbon dioxide hydrate according to claim 1 is characterized in that: the particle diameter that generates fine ice described step 2) is 3 microns～7 microns.
3. carbonated waste gas recovering device based on carbon dioxide hydrate, it is characterized in that: comprise cooling cooler (1) and reaction tower (2), described reaction tower (2) is provided with air inlet (21) and carbon dioxide hydrate outlet (22), described air inlet (21) be connected with cooling cooler (1), the fine ice maker (24) of the fine ice of the cooling generation of spraying that is provided with sprayer (23) above described reaction tower (2) and is used for sprayer (23) is sprayed, the below that described reaction tower (2) is positioned at sprayer (23) is provided with for carbonated waste gas and fine ice are reacted and generates the hydration reaction bed unit (25) of carbon dioxide hydrate.
4. the carbonated waste gas recovering device based on carbon dioxide hydrate according to claim 3, it is characterized in that: described hydration reaction bed unit (25) comprises the hydration reaction bed (251) of a plurality of vertical distributions, and be provided be used to the transfer port that transmits fine ice (252) between adjacent hydration reaction bed (251), and the surface of described hydration reaction bed (251) is provided be used to stirring fine ice and fine ice being sent to the agitator (253) of lower floor's hydration reaction bed (251) by transfer port (252).
5. the carbonated waste gas recovering device based on carbon dioxide hydrate according to claim 4 is characterized in that: described fine ice maker (24) is column.
6. the carbonated waste gas recovering device based on carbon dioxide hydrate according to claim 5, it is characterized in that: the bottom of described fine ice maker (24) is provided with fine ice outlet (241), and described fine ice maker (24) is connected with the inner chamber of reaction tower (2) by fine ice outlet (241).
7. the carbonated waste gas recovering device based on carbon dioxide hydrate according to claim 6, it is characterized in that: described sprayer (23) is located at the top of fine ice maker (24), and the side of described fine ice maker (24) is provided with at least one cooling jacket (242).
8. the described carbonated waste gas recovering device based on carbon dioxide hydrate of any one according to claim 3～7, it is characterized in that: described cooling cooler (1) is provided with by input one side the air compressor (11) that will compress for inputting carbonated waste gas.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104334027A CN103170235A (en) | 2011-12-21 | 2011-12-21 | Method and device for recycling carbon dioxide-containing waste gas based on carbon dioxide hydrate |
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| CN2011104334027A CN103170235A (en) | 2011-12-21 | 2011-12-21 | Method and device for recycling carbon dioxide-containing waste gas based on carbon dioxide hydrate |
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| CN2011104334027A Pending CN103170235A (en) | 2011-12-21 | 2011-12-21 | Method and device for recycling carbon dioxide-containing waste gas based on carbon dioxide hydrate |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101511449A (en) * | 2006-09-29 | 2009-08-19 | 独立行政法人产业技术综合研究所 | Method and apparatus for recovery of carbon dioxide from recovery exhaust gas |
| CN201545703U (en) * | 2009-09-28 | 2010-08-11 | 苏州市金宏气体有限公司 | Device for purifying carbon dioxide in recovered dry ice waste gas |
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- 2011-12-21 CN CN2011104334027A patent/CN103170235A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101511449A (en) * | 2006-09-29 | 2009-08-19 | 独立行政法人产业技术综合研究所 | Method and apparatus for recovery of carbon dioxide from recovery exhaust gas |
| CN201545703U (en) * | 2009-09-28 | 2010-08-11 | 苏州市金宏气体有限公司 | Device for purifying carbon dioxide in recovered dry ice waste gas |
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Application publication date: 20130626 |