CN201873655U - Biomass methane refining system - Google Patents
Biomass methane refining system Download PDFInfo
- Publication number
- CN201873655U CN201873655U CN2010206156237U CN201020615623U CN201873655U CN 201873655 U CN201873655 U CN 201873655U CN 2010206156237 U CN2010206156237 U CN 2010206156237U CN 201020615623 U CN201020615623 U CN 201020615623U CN 201873655 U CN201873655 U CN 201873655U
- Authority
- CN
- China
- Prior art keywords
- gas
- methane
- biogas
- removal device
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a biomass methane refining system, which comprises a gas collecting tank, wherein the gas collecting tank is connected with a desulfurization tower; the desulfurization tower is connected with a decarbonizing adsorption device; the tail end of a gas outlet pipeline of the decarbonizing adsorption device is connected with a methane collector; a silicone removal device, a halogenated hydrocarbon removal device, a tower drier and an oxynitride removal device are in parallel connection with the gas outlet pipeline between the decarbonizing adsorption device and the methane collector in sequence; a gas compression device is in serial connection with a pipeline of the hydrocarbon removal device; and control valves are arranged on pipelines among the devices which are in parallel connection. The utility model has the advantages that grade-type modular treatment is adopted, methane concentration is extremely high after the methane is treated by the system, the refining effect is remarkable, the system can work continuously, the purification efficiency is high, the structure of equipment is simple, and the operation is easy; the adopted removal agent is easy to obtain, so that the cost is low; and the equipment of the system can be dismantled in a staged manner for modular use, is flexible and reliable, and has good adaptability.
Description
Technical field
The utility model relates to a kind of biogas technology, especially a kind of biomass marsh gas purification system.
Background technology
It is biogas that biogas engineering is built direct products, biogas is a kind of flammable mixed gas by microorganisms, its main component is a methane, content is about 50-75%, next is 25-45% carbonic acid gas, also has other gas in addition, as hydrogen sulfide, carbon monoxide, nitrogen, water vapour, oxygen etc.Biogas and gas component differ greatly, the Sweet natural gas methane content is up to 96%, calorific value reaches 33500KJ/m3, and the biogas calorific value only reaches about half of Sweet natural gas, this has just limited the purposes of biogas, be mainly used in illumination, civilian and commercial kitchen range, industrial heat resources, marsh gas power generation etc., can replace fuel such as stalk, fuel wood, coal.
At present, domestic biogas engineering is not carried out the biogas Purification as yet, and biogas only uses as rural area kitchen range fuel, purposes is few, and use value is low, under the present situation that the renewable energy source development is paid much attention to, biogas is purified and is produced bio-natural gas, enlarges the biogas purposes and also comes into one's own.
The purification of biogas mainly is to the H in the biogas
2S, H
2O, CO
2, halogenation mixed gas and siloxanes removal, desulfurization is for fear of etching apparatus and H
2S poisons, if SO is emitted in the biogas burning
2, can compare H
2S causes bigger harm, SO
2Can reduce dew point, water-soluble back generates sulfurous acid and is corrosive; If dehydration is can dissolve H because accumulated water in the airway
2S and corrosion pipeline are in addition when the pressurized storage of biogas, in order to prevent the freezing gas-holder because of condensed water, so must water be removed; Remove CO
2Be because CO
2Reduced the energy density of biogas, if used biogas need reach the Sweet natural gas standard or be used as automobile fuel, so just must be to CO wherein
2Remove.
At present, China has developed a lot of systems at aspects such as purified natural gas, coal gas, sewage gas and landfill gas, but because the reason of price and environment, not all system all is applicable to the purification of biogas.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, but a kind of non-stop run is provided, the purification efficiency height, and device structure is simple, easily operation; With low cost, the gradable dismounting of equipment, modularization is used, flexibility and reliability, the biomass marsh gas purification system that adaptability is good.
For achieving the above object, the utility model adopts following technical proposals:
A kind of biomass marsh gas purification system, comprise air collector, air collector links to each other with thionizer, thionizer links to each other with the decarburization adsorption unit, decarburization adsorption unit outlet pipe end links to each other with the methane collection device, be parallel with siloxane removal device, halon remover, drying tower and nitrogen oxygen remover on the outlet pipe between decarburization adsorption unit and the methane collection device successively, be in series with gas compressing apparatus on the pipeline of described halon remover, and be equipped with by-pass valve control on the pipeline between aforementioned each parallel arrangement.
Hardware device in the utility model all is existing equipment, does not repeat them here.
The utility model has proposed the system that a kind of stagewise modularization is handled to the various foreign gases in the biogas, and this system's refining effect is remarkable, the purification efficiency height, and device structure is simple, and operation is with low cost easily, but non-stop run.
The utility model carries out hydrogen sulfide removal in thionizer, adopted the DDS desulfurization technology.The DDS catalyzer is a kind of complexing polymerization iron, with the basic solution desulfurization that contains DDS catalyzer and close sulphur oxygen consumption alkali-resistant bacterium is the biochemical desulfurization technology of a kind of brand-new wet method, hydrogen sulfide mass concentration in the gas can be reduced to 1mg/m3, the mass concentration of organosulfur can be reduced to below the 5mg/m3 simultaneously.In the decarburization adsorption unit, adopt CO
2Main flow removes technology---and transformation absorption (PSA) technology, the corresponding pressure-swing absorption apparatus of apolegamy biogas component to finish the operating unit purifying to product gas, is thoroughly removed H
2S, CO
2
The utility model adopts a plurality of adsorption towers that can be connected coupling flexibly to carry out multistage purifying.The major equipment that the utility model adopted is an adsorption tower, and special equipment is arranged on the market, just no longer describes in detail at this.The equipment easy accessibility is equipped with independent trip switch on pipeline connects, can require each unit wherein is connected coupling flexibly according to difference, as the adjustment of order, the increase and decrease of quantity, unitary series-parallel connection use etc.Also can be by regulating and control independently by-pass valve control, prevent that a certain unit internal gas pressure is low excessively and cause gas backstreaming, be convenient to fault and get rid of, thereby realize different purification requirements, flexibility and reliability, running cost is low, easy handling.
Description of drawings
Fig. 1 is that the utility model system constitutes synoptic diagram;
1--air collector wherein; The 2--thionizer; 3--decarburization adsorption unit; The 4--siloxane removal device; The 5--gas compressing apparatus; 6--halon remover; The 7--drying tower; 8--nitrogen oxygen remover; 9--methane collection device, 10-by-pass valve control.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Among Fig. 1, a kind of biomass marsh gas purification system, comprise air collector 1, air collector 1 links to each other with thionizer 2, thionizer 2 links to each other with decarburization adsorption unit 3, decarburization adsorption unit 3 outlet pipe ends link to each other with methane collection device 9, be parallel with siloxane removal device 4, halon remover 6, drying tower 7 and nitrogen oxygen remover 8 on the outlet pipe between decarburization adsorption unit 3 and the methane collection device 9 successively, be in series with gas compressing apparatus 5 on the pipeline of described halon remover 6, and be equipped with by-pass valve control 10 on the pipeline between aforementioned each parallel arrangement.
Wherein the removal hydrogen sulfide that adopts in thionizer 2 is DDS desulfurization technology (this technology is a prior art).The DDS desulfurization technology is to use complexing iron and in conjunction with the biochemical wet desulphurization technology of biological process, the hydrogen sulfide mass concentration in the gas can be reduced to 1mg/m3, the mass concentration of organosulfur can be reduced to below the 5mg/m3 simultaneously.The doctor solution of DDS desulfurization technology is that to allocate DDS catalyzer, aldehydes matter and active carbonic acid in the aqueous solution of alkaline matter into ferrous and constitute, and adds aerobic bacteria gemma or aerobic bacteria simultaneously.The DDS catalyzer is a kind of poly-(or many) carboxyls class iron complex compound, through semi-synthetic obtaining, not only has stronger oxygen carrying capability by natural plant extracts, and be difficult for degraded in basic solution, and stability is high.On the other hand, insoluble molysite such as a small amount of iron sulphide that produces in absorption and regenerative process and Iron sulfuret are decomposed by aerobic bacteria, and the iron ion of generation turns back in the solution, has kept the stability of various form iron concentrations in the solution.The DDS desulfurization technology absorbs organosulfur, inorganic sulfur, prussic acid and the amounts of carbon dioxide in the gas under normal pressure, solution under the common catalysis of DDS catalyzer and Resorcinol, by-product sulphur when regenerating with atmospheric oxidation, solution circulated is used; Adding carbonic acid gas, organosulfur, inorganic sulfur and the prussic acid of depressing in the absorption gas again, by-product carbonic acid gas when decompression and thermal regeneration; Continuation under the common catalysis of DDS catalyzer and Resorcinol, by-product sulphur when regenerating with atmospheric oxidation, regeneration soln recycles.In addition, doctor solution is regenerated under the effect of aldehydes matter, and reproduction speed is fast, and regeneration thoroughly.Thereby the characteristics of DDS desulfurization technology are that solution composition is stable, the degree of purification height, and turndown ratio is big, and the integrated operation cost is low.
Because the DDS desulfurization technology only has the certain absorption effect to carbonic acid gas, so increased decarburization adsorption unit 3 again after thionizer 2, to guarantee the refining effect of biogas, adopts CO in decarburization adsorption unit 3
2Removing mainstream technology---transformation absorption (PSA) technology (this technology also is a prior art, does not repeat them here), the corresponding pressure-swing absorption apparatus of apolegamy biogas component is to finish the single operation unit purifying to product gas.
In siloxane removal device 4, because hydrocarbon mixed soln has very strong sorption to silicon compound, so native system adopts the absorption agent of hydrocarbon mixed soln (this hydrocarbon mixed soln is an existing products on the market) as siloxanes.Because hydrocarbon mixed soln is an organic solution, has certain volatility, thus hydrocarbon mixed gas contained in the gas of from siloxane removal device 4, removing, and also contain the halon mixed gas in the biogas, so in follow-up unit, must remove.Therefore increased halon remover 6 after this.
At halon remover 6, utilize the adsorption of modified activated carbon (modified activated carbon is an existing products on the market) to remove halon.But need before this biogas is pressurizeed so that gas can pass through gac,, make gas have enough pressure, thereby improve absorption purifying effect smoothly by activated carbon surface so before halon remover 6, increased gas compressing apparatus 5.The mechanism of action of modified activated carbon mainly is to concentrate (efficient height, loading capacity big) and hot steam desorption and regeneration principle according to the absorption of gac, rely on the absorption property and the catalyticing decomposition action after the modification (chemical stability) of gac self that some organic class obnoxious flavour is had very strong removal ability, lack of equilibrium van der Waals' force or chemical bonding force that mixed gas is existed by carbon surface during by active carbon layer are adsorbed on the gac, carry out chemical catalysis and Decomposition simultaneously, thereby reach purification purpose obnoxious flavour.
Because gas can be taken a spot of water vapour out of by solution in the purification system of front, so before the biogas after the purification is incorporated gas distributing system into, need gas is carried out drying, in moisture eliminator 7, adopt absorption process that biogas is carried out drying, absorption process utilizes the water can be by ethylene glycol exactly, the character that triethylene glycol and absorptive salt absorb, the water-absorbent characteristic different according to salt, usually small-particle salt in dry adsorption tower, filling, gas to be dried feeds from the bottom, by water dissolution saturated salt solution be accumulated in the bottom of adsorption tower, get rid of by valve, change new salt particle then, salt generally need not be regenerated.
If the excessive danger that has blast of oxygen concentration, as containing methane 60%, remaining mainly is CO in the biogas
2, air content will be blasted between 6%-12%.Oxygen and nitrogen can pass through membrane separation process or the transformation absorption process is removed, yet the cost of removing can be bigger, if by the monitoring oxygen concn, prevent that air is sucked into biogas, hanging down than direct purification biogas cost also can be more reliable.Therefore the setting of nitrogen oxygen remover 8 should decide according to concrete practical situation, and the advantage of native system equipment easy accessibility is beneficial to the whether use that realizes nitrogen oxygen remover 8.
The major equipment that native system adopted is an adsorption tower, and special equipment is arranged on the market, just no longer describes in detail at this, purifies but can be in a certain concrete scavenging process be connected in parallel with a plurality of identical adsorption towers according to the needs of practical situation; In addition, for guaranteeing the unimpeded of whole purification system, also can increase the quantity of gas compressing apparatus and pressure regulator valve is set in pipeline, have certain pressure to guarantee the gas in the system, thereby guarantee the smoothness of total system flow process according to practical situation.
Claims (1)
1. biomass marsh gas purification system, it is characterized in that: comprise air collector, air collector links to each other with thionizer, thionizer links to each other with the decarburization adsorption unit, decarburization adsorption unit outlet pipe end links to each other with the methane collection device, be parallel with siloxane removal device, halon remover, drying tower and nitrogen oxygen remover on the outlet pipe between decarburization adsorption unit and the methane collection device successively, be in series with gas compressing apparatus on the pipeline of described halon remover, and be equipped with by-pass valve control on the pipeline between aforementioned each parallel arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206156237U CN201873655U (en) | 2010-11-20 | 2010-11-20 | Biomass methane refining system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206156237U CN201873655U (en) | 2010-11-20 | 2010-11-20 | Biomass methane refining system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201873655U true CN201873655U (en) | 2011-06-22 |
Family
ID=44161581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206156237U Expired - Fee Related CN201873655U (en) | 2010-11-20 | 2010-11-20 | Biomass methane refining system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201873655U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102533369A (en) * | 2012-01-13 | 2012-07-04 | 北京昊海天际科技有限公司 | Process method for methane purification |
| CN102559316A (en) * | 2011-12-31 | 2012-07-11 | 浙江工业大学 | Methane purifying method and equipment thereof |
| CN103508829A (en) * | 2012-06-25 | 2014-01-15 | 张文波 | Method for purifying methane from biogas |
| CN104707458A (en) * | 2015-02-06 | 2015-06-17 | 常州大学 | Method and device for removing siloxane in garbage landfill gas/methane |
| CN105928320A (en) * | 2016-04-27 | 2016-09-07 | 南京师范大学 | Cold accumulation type device for removing siloxane in biomass gas |
| CN110172368A (en) * | 2019-06-26 | 2019-08-27 | 毅康科技有限公司 | A kind of integrated apparatus purified and remove pernicious gas in biogas |
-
2010
- 2010-11-20 CN CN2010206156237U patent/CN201873655U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102559316A (en) * | 2011-12-31 | 2012-07-11 | 浙江工业大学 | Methane purifying method and equipment thereof |
| CN102559316B (en) * | 2011-12-31 | 2013-11-13 | 浙江工业大学 | Methane purifying method and equipment thereof |
| CN102533369A (en) * | 2012-01-13 | 2012-07-04 | 北京昊海天际科技有限公司 | Process method for methane purification |
| CN103508829A (en) * | 2012-06-25 | 2014-01-15 | 张文波 | Method for purifying methane from biogas |
| CN104707458A (en) * | 2015-02-06 | 2015-06-17 | 常州大学 | Method and device for removing siloxane in garbage landfill gas/methane |
| CN105928320A (en) * | 2016-04-27 | 2016-09-07 | 南京师范大学 | Cold accumulation type device for removing siloxane in biomass gas |
| CN105928320B (en) * | 2016-04-27 | 2018-12-18 | 南京师范大学 | Siloxanes removing means in a kind of cool-storage type biogas |
| CN110172368A (en) * | 2019-06-26 | 2019-08-27 | 毅康科技有限公司 | A kind of integrated apparatus purified and remove pernicious gas in biogas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201873655U (en) | Biomass methane refining system | |
| Zhao et al. | Removal performance, mechanisms, and influencing factors of biochar for air pollutants: a critical review | |
| CN104906937A (en) | Flue gas desulfurization and denitrification device and method of coal fired boiler | |
| CN102500323B (en) | Modified active carbon desulfurizer and preparation method thereof and treatment method of hydrogen sulfide waste gas | |
| CN101347718A (en) | Novel globular active carbon and use in desulfuration field | |
| CN1951541A (en) | Process for purifying sulfur-containing foul waste gas | |
| CN109078459A (en) | A kind of device and technology of absorption-adsorption-desorption cycle resource utilization volatile organic gases | |
| CN102824823B (en) | Liquid phase load type gas desulfurizing agent | |
| CN113122340A (en) | Blast furnace gas purification method | |
| CN102000484B (en) | Rubber-mixing waste gas deodorizing and purifying device and method through dry oxidation | |
| Żarczyński et al. | Practical methods of cleaning biogas from hydrogen sulphide. Part 1, application of solid sorbents | |
| CN109593583B (en) | Hydrogen sulfide removal system and desulfurization method | |
| CN201750987U (en) | Dry desulfurizing tower capable of regenerating and cycling a desulfurizer | |
| CN108939867B (en) | Treatment method of volatile sulfur-containing organic waste gas | |
| CN201832543U (en) | Dry type deodorizing and purifying device for waste gas of oxidization rubber mixing | |
| Sitthikhankaew et al. | Performance of commercial and modified activated carbons for hydrogen sulfide removal from simulated biogas | |
| CN202829982U (en) | Natural gas system for desulfuration, decarburization and purification of methane | |
| CN105344224A (en) | Styrene exhaust gas treatment method | |
| CN202289838U (en) | Tail gas treatment device for sebacic acid | |
| CN201140031Y (en) | Apparatus for absorbing alkaline air in off-gas of copper liquid | |
| CN204656305U (en) | Stalk produces biogas purification devices | |
| CN203694875U (en) | Radial cross-flow moving-bed reactor for removal of hydrogen sulfide by temperature swing adsorption | |
| CN108525509B (en) | Gas desulfurization method | |
| CN108246061A (en) | The processing method for the exhaust gas containing VOCs that a kind of loss of sewage lifting pond goes out | |
| CN102908849A (en) | Treatment method for waste gas discharged from sewage farm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20171120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |