CN102660342A - Method and device for atomizing and purifying marsh gas - Google Patents
Method and device for atomizing and purifying marsh gas Download PDFInfo
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- CN102660342A CN102660342A CN2012101546663A CN201210154666A CN102660342A CN 102660342 A CN102660342 A CN 102660342A CN 2012101546663 A CN2012101546663 A CN 2012101546663A CN 201210154666 A CN201210154666 A CN 201210154666A CN 102660342 A CN102660342 A CN 102660342A
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Abstract
The invention belongs to the technical field of the purification of marsh gas, and provides a method and a device for atomizing and purifying the marsh gas, which is characterized in that methane (CH4) is concentrated and purified by utilizing the difference of water solubility of different gases in the marsh gas. The method for atomizing and purifying the marsh gas comprises the following steps of firstly mixing the water and the marsh gas into mash gas mist, uniformly spraying the marsh gas mist into a water body, collecting the CH4 gas which is escaped from the water body, and finally extracting carbon dioxide (CO2) gas with high concentration in the water body with the marsh gas mist; through the water atomization and gas atomization of the marsh gas, the gas components in the marsh gas which are easy to dissolve in the water are dissolved in the water, CH4 is escaped from the water, and the CO2 gas with high concentration is extracted by decompressing or stirring the water body with the marsh gas mist; and the device for atomizing and purifying the marsh gas is simple in structure and strong in practicability and has high popularization and application value.
Description
Technical field
The invention belongs to biogas purification techniques field, relate in particular to a kind of method and device of the purifying biogas that atomizes.
Background technology
Biogas is a kind of important biomass energy, and the production of biogas generally has feces of livestock and poultry, straw, organic waste, mud and sewage etc. to generate through anaerobically fermenting.
Because CH in the biogas
4Content between 60%～70%, so the calorific value of biogas relatively low and complicated component, especially H
2S has stronger corrosive nature to metallic substance, therefore must remove; Biogas after atomizing is purified becomes the biomass Sweet natural gas; Can be used as onboard fuel, domestic fuel and industrial raw material, therefore promote the mass-producing biogas production and purify, can reduce the environmental pollution that produces by stalk, feces of livestock and poultry, sewage sludge etc.; Turn waste into wealth simultaneously; Obtained biogas (biomass Sweet natural gas), solved rural area, town dweller's fuel problem to a certain extent, and the natural pond slag, the natural pond liquid that produce are the high-quality organic fertilizer.
Therefore but mass-producing biogas engineering and purification techniques thereof are the green technologies of benefiting the nation and the people of a perennity development, also are simultaneously the green energy resource technology.Will exert far reaching influence to social development.
Summary of the invention
The invention provides a kind of method and device of the purifying biogas that atomizes; Be intended to solve the method that prior art provides; Can not purify effectively to biogas, the relatively low and complicated component of the calorific value of the biogas that is obtained is unfavorable for the problem that makes full use of of biogas energy.
The object of the present invention is to provide a kind of method of the purifying biogas that atomizes, this method may further comprise the steps:
Water mixed with biogas become biogas water smoke;
Biogas water smoke is evenly sprayed in the water body, collect the CH that from water body, overflows
4Gas;
From the water body that is connected with biogas water smoke, extract the CO of high density
2Gas.
Further, this method can be passed through to regulate the input of biogas and the ratio of carrying capacity, water is mixed with biogas become biogas water smoke.
Further, this method can or be stirred the water body that is connected with biogas water smoke through decompression, extracts the CO of high density
2Gas.
Another object of the present invention is to provide a kind of device of the purifying biogas that atomizes, this device comprises: biogas pump, first water pump, water atomizer(-iser), aerosolization device, biogas water wash column, header, opening-closing valve, second water pump, water spray header, effuser, off-gas pump;
The said biogas pump and first water pump are connected with said water atomizer(-iser) respectively; Said water atomizer(-iser) is connected with said aerosolization device; Said aerosolization device is installed in the bottom of said biogas water wash column; The bottom of said biogas water wash column is equipped with said header, and said opening-closing valve is installed on the said header;
Said second water pump is connected with said water spray header, and said water spray header is installed in the top of said biogas water wash column, and the top of said biogas water wash column is equipped with said effuser, and said effuser is connected with said off-gas pump.
Further, the said biogas pump and first water pump are connected with said water atomizer(-iser) respectively through pipeline
Further, said water atomizer(-iser) is connected and composed by nozzle and adapter bonnet.
Further, said aerosolization device is connected and composed by divider, porous rubber-plastic pipe and support frame.
Further, said porous rubber-plastic tube-surface has been covered with the micropore of the inside and outside perforation of diameter 0.05～0.08mm.
The method of atomizing purifying biogas provided by the invention and device utilize the water miscible difference of each gaseous constituent in the biogas, have realized CH
4Concentrated purification; At first water is mixed with biogas and become biogas water smoke, then biogas water smoke is evenly sprayed in the water body, collect the CH that from water body, overflows
4Gas extracts the CO of high density at last from the water body that is connected with biogas water smoke
2Gas; Through biogas being carried out the processing of water atomization and aerosolization, make gaseous constituent soluble in water in the biogas be dissolved in the water CH basically
4Then,, extract the CO of high density through reducing pressure or stirring the water body that is connected with biogas water smoke by overflowing in the water
2Gas; Simple in structure, practical, have stronger popularization and using value.
Description of drawings
Fig. 1 is the realization flow figure of the method for the atomizing purifying biogas that provides of the embodiment of the invention;
Fig. 2 is the structured flowchart of the device of the atomizing purifying biogas that provides of the embodiment of the invention.
Among the figure: 1, biogas pump; 2, first water pump; 3, water atomizer(-iser); 4, aerosolization device; 5, biogas water wash column; 6, header; 7, opening-closing valve; 8, second water pump; 9, water spray header; 10, effuser; 11, off-gas pump.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further specified below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in the qualification invention.
Fig. 1 shows the realization flow of the method for the atomizing purifying biogas that the embodiment of the invention provides.
This method may further comprise the steps:
In step S101, water mixed with biogas become biogas water smoke;
In step S102, biogas water smoke is evenly sprayed in the water body, collect the CH that from water body, overflows
4Gas;
In step S103, from the water body that is connected with biogas water smoke, extract the CO of high density
2Gas.
In embodiments of the present invention, this method can be passed through to regulate the input of biogas and the ratio of carrying capacity, water is mixed with biogas become biogas water smoke.
In embodiments of the present invention, this method can or be stirred the water body that is connected with biogas water smoke through decompression, extracts the CO of high density
2Gas.
Fig. 2 shows the structure of the device of the atomizing purifying biogas that the embodiment of the invention provides.For the ease of explanation, only show the part relevant with the present invention.
This device comprises: biogas pump 1, first water pump 2, water atomizer(-iser) 3, aerosolization device 4, biogas water wash column 5, header 6, opening-closing valve 7, second water pump 8, water spray header 9, effuser 10, off-gas pump 11;
The biogas pump 1 and first water pump 2 are connected with water atomizer(-iser) 3 respectively, and water atomizer(-iser) 3 is connected with aerosolization device 4, and aerosolization device 4 is installed in the bottom of biogas water wash column 5, and the bottom of biogas water wash column 5 is equipped with header 6, and opening-closing valve 7 is installed on the header 6;
In embodiments of the present invention, the biogas pump 1 and first water pump 2 are connected with water atomizer(-iser) 3 respectively through pipeline
In embodiments of the present invention, water atomizer(-iser) 3 is connected and composed by nozzle and adapter bonnet.
In embodiments of the present invention, aerosolization device 4 is connected and composed by divider, porous rubber-plastic pipe and support frame.
In embodiments of the present invention, the porous rubber-plastic tube-surface has been covered with the micropore of the inside and outside perforation of diameter 0.05～0.08mm.
Below in conjunction with accompanying drawing and specific embodiment application principle of the present invention is further described.
The staple of biogas is CH
4And CO
2, also have a spot of H in addition
2S, NH
3, in the gas of above composition, remove CH
4All the other are all soluble in water outward, so the ultimate principle of biogas atomizing purifying technique is to utilize CO
2, H
2S, NH
3With CH
4Water-soluble difference realize CH
4Concentrated purification.
As shown in Figure 2, at first biogas to be sent in the pipeline through biogas pump 1, pipeline is provided with water atomizer(-iser) 3; Water atomizer(-iser) 3 is made up of nozzle and adapter bonnet; Its effect is that gas velocity is improved, and water is mixed with biogas become biogas water smoke, and the biogas displacement of control biogas pump 1 and the carrying capacity of first water pump 2 reach suitable ratio; Become the gas-liquid homogeneous flow after making atomizing; Final purpose is that gaseous constituent soluble in water in the biogas can fully be dissolved in the water droplet of biogas gas-liquid homogeneous flow, because the water droplet size of biogas mist is very little, so the contact area of the water of equal volume and biogas is very big; Water droplet is all very high to the dissolved efficiency and the dissolution rate of each gaseous constituent soluble in water in the biogas in the biogas mist, and this step process is called water atomization technology.
Then biogas water smoke is sprayed in the biogas water wash column 5 through aerosolization device 4, aerosolization device 4 evenly sprays into the biogas mist in the water, makes water droplet wherein sneak in the water very soon; Aerosolization device 4 is connected structure by divider with porous rubber-plastic pipe and support frame; The porous rubber-plastic tube-surface has been covered with the micropore of the inside and outside perforation of diameter 0.05～0.08mm; Biogas microbubble with diameter 0.1～0.2mm under the effect of porous rubber-plastic pipe internal pressure sprays in the water; The scantlings of the structure of aerosolization device 4 makes residual gas composition wherein soluble in water such as CO by biogas treatment capacity and the decision of water wash column size
2, H
2S, NH
3Deng being dissolved in the water quickly and efficiently, this step is called aerosolization technology.Through the gentle atomization process of above water atomization, gaseous constituent soluble in water in the biogas is dissolved in the water, and CH
4Then, collect through suction pump by the pipeline at biogas water wash column 5 tops by overflowing in the water.
This technology obtains the CH of high density through the flow of control biogas pump 1 input biogas, the discharge that first water pump 2 reaches and second water pump 8 is imported, the flow of off-gas pump 11, the flow of by-pass cock valve 7
4Gas reaches the purpose that biogas is purified; As to improve collected CH
4Concentration, pressure environment that can be through changing technological process, repeatedly means such as atomizing realize; By opening-closing valve 7 discharges mainly is H
2O and CO
2, can or stir the CO that water body is collected high density through decompression
2Gas, the crucial measuring parameter of whole technological process is CO in the water
2Solubleness and the CH of collected gas
4Concentration, controlled variable are the discharge of flow and the water pump and the nozzle of biogas pump 1.Install resulting CH through this at present
4Concentration is 93%, and handling every cubic metre of biogas power consumption is 0.08 degree.
The method and the device of the atomizing purifying biogas that the embodiment of the invention provides utilize the water miscible difference of each gaseous constituent in the biogas, have realized CH
4Concentrated purification; At first water is mixed with biogas and become biogas water smoke, then biogas water smoke is evenly sprayed in the water body, collect the CH that from water body, overflows
4Gas extracts the CO of high density at last from the water body that is connected with biogas water smoke
2Gas; Through biogas being carried out the processing of water atomization and aerosolization, make gaseous constituent soluble in water in the biogas be dissolved in the water CH basically
4Then,, extract the CO of high density through reducing pressure or stirring the water body that is connected with biogas water smoke by overflowing in the water
2Gas; Simple in structure, practical, have stronger popularization and using value.
More than be merely preferred embodiment of the present invention,, all any modifications of within spirit of the present invention and principle, being done, be equal to and replace and improvement etc., all should be included within protection scope of the present invention not in order to restriction the present invention.
Claims (8)
1. the method for the purifying biogas that atomizes is characterized in that, this method may further comprise the steps:
Water mixed with biogas become biogas water smoke;
Biogas water smoke is evenly sprayed in the water body, collect the CH that from water body, overflows
4Gas;
From the water body that is connected with biogas water smoke, extract the CO of high density
2Gas.
2. the method for claim 1 is characterized in that, this method can be passed through to regulate the input of biogas and the ratio of carrying capacity, water is mixed with biogas become biogas water smoke.
3. the method for claim 1 is characterized in that, this method can or be stirred the water body that is connected with biogas water smoke through decompression, extracts the CO of high density
2Gas.
4. the device of the purifying biogas that atomizes is characterized in that, this device comprises: biogas pump, first water pump, water atomizer(-iser), aerosolization device, biogas water wash column, header, opening-closing valve, second water pump, water spray header, effuser, off-gas pump;
The said biogas pump and first water pump are connected with said water atomizer(-iser) respectively; Said water atomizer(-iser) is connected with said aerosolization device; Said aerosolization device is installed in the bottom of said biogas water wash column; The bottom of said biogas water wash column is equipped with said header, and said opening-closing valve is installed on the said header;
Said second water pump is connected with said water spray header, and said water spray header is installed in the top of said biogas water wash column, and the top of said biogas water wash column is equipped with said effuser, and said effuser is connected with said off-gas pump.
5. device as claimed in claim 4 is characterized in that, the said biogas pump and first water pump are connected with said water atomizer(-iser) respectively through pipeline.
6. device as claimed in claim 4 is characterized in that said water atomizer(-iser) is connected and composed by nozzle and adapter bonnet.
7. device as claimed in claim 4 is characterized in that, said aerosolization device is connected and composed by divider, porous rubber-plastic pipe and support frame.
8. device as claimed in claim 7 is characterized in that, said porous rubber-plastic tube-surface has been covered with the micropore of the inside and outside perforation of diameter 0.05～0.08mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101546663A CN102660342A (en) | 2012-05-18 | 2012-05-18 | Method and device for atomizing and purifying marsh gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101546663A CN102660342A (en) | 2012-05-18 | 2012-05-18 | Method and device for atomizing and purifying marsh gas |
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| CN102660342A true CN102660342A (en) | 2012-09-12 |
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| CN2012101546663A Pending CN102660342A (en) | 2012-05-18 | 2012-05-18 | Method and device for atomizing and purifying marsh gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110981138A (en) * | 2019-12-23 | 2020-04-10 | 广州天外科技有限公司 | Municipal new forms of energy are promoted and are used septic tank marsh gas recovery clarification plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110981138A (en) * | 2019-12-23 | 2020-04-10 | 广州天外科技有限公司 | Municipal new forms of energy are promoted and are used septic tank marsh gas recovery clarification plant |
| CN110981138B (en) * | 2019-12-23 | 2020-11-06 | 肇庆悦能科技有限公司 | Municipal new forms of energy are promoted and are used septic tank marsh gas recovery clarification plant |
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Application publication date: 20120912 |