• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a process for purifying / separating / enriching a gas or biogas, which contains methane and carbon dioxide. The gas (200) is processed by a helically constructed loop pump (20) together with a liquid (65) alternately dosing so that the loop pump is alternately fed with liquid and gas which after pressure build-up leaves the loop pump (20) and is led to a gas separator (30) from which led to a liquid scrubber (40) for further purification before the gas is transported to a place of use. The liquid in the gas separator leads to a stripper empty (50) for removing carbon dioxide, after which the liquid is led to a liquid tank (60) for reuse in the process. (Fig.1)
    公开号:SE1000592A1
    申请号:SE1000592
    申请日:2010-06-01
    公开日:2011-12-02
    发明作者:Per-Olof Karlsson
    申请人:Jtm Invest Ab；
    IPC主号:
    专利说明:

    pump device 20, a gas separator 30, a water scrubber 40, a stripper tower 50 and a water tank 60. In the bottom region of the container / digestion chamber 10 is added a digestible material mixture or a digestion material 11. The digestion material may for example comprise manure, urine, organic material and bacteria for digestion methane gas generation or other suitable biomass in the broadest sense. Through, for example, temperature and humidity control, gas production can be optimized. Due to the anaerobic decomposition, a large part of the energy content of the digestion material 11 is converted to biogas 200, which mainly consists of methane and carbon dioxide.
    In addition, by-products such as hydrogen sulphide and ammonia are normally present.
    The biogas 100 which is bubbled released from the digestion material 11 during the digestion process rises upwards to the upper region of the container 10, as shown in Figure 1.
    The pump device consists of a specially designed loop pump 20, the basic design of which is shown in Figure 2. The loop pump 20 is constructed as a coil where a hose or pipe is helically shaped so that its inlet 21 is arranged at the outer part of the hose reel and its outlet 22 is arranged at the inner part of the hose reel.
    The loop pump 20 is supported by a stand (not shown) and is by means of a drive motor rotatably arranged about a centrally arranged axis of rotation A in a direction of rotation according to arrow B. The loop pump screws supplied gas and liquid into the wind while providing pressure increase. Swivels or other types of rotary couplings are of course arranged at current supply and discharge lines.
    From the gas space of the digestor chamber 10 runs a line 100 which goes via a gas compressor 101 to a 3-way valve 102 which is connected to a line ~ 103 which is connected to the inlet 21 of the loop pump 20.
    From the water tank 60 runs a line 110 which via a water pump 111 goes to the 3-way valve 102, where also the lines 100 and 103 are connected.
    By regulating the 3-way valve 102, biogas and water can be dosed alternately by means of the compressor 101 and the water pump 111 so that the rotary loop pump 20 is alternately fed with water and biogas, whereby a successive pressure build-up occurs when formed liquid cushions and gas cushions spirally constructed loop turns (hose reel) and leaves the inner part of the loop pump via a line 120, which communicates with the gas separator where the gas fills the upper part of the separator and the liquid (now with increased carbon dioxide content) fills the lower part of the separator. As the pressure increase in the loop pump, the carbon dioxide content of the gas pads will be absorbed by the liquid, so that the carbon dioxide content of the gas pads thereby decreases.
    The gas in the gas separator 30 is transported via a line 130 to the water scrubber 40 for another purification step. Water from the tank 60 is transported to the water scrubber 40 via a line 140 along which a liquid pump 141 is arranged. Pre-branched biogas leaves the scrubber 40 via a line 150 to a consumer. The scrubber 40 is constructed according to known technology, whereby biogas is supplied in the bottom region of the scrubber and water is pumped into its top region. In this case, the biogas is forced through the water under pressure, which causes additional carbon dioxide in the gas to dissolve in the water.
    Liquid from the gas separator 30 and from the water scrubber 40 is transported via lines 140 to the stripper tower 50 where air is supplied (arrow C) in order to reduce the carbon dioxide content of the liquid. In the stripper atom 50, a pressure drop occurs so that the carbon dioxide can return to nature's cycle or be disposed of appropriately, which is symbolized by an arrow D. The carbon dioxide-reduced liquid in the stripper tower is returned via a line 160 to the liquid tank 60 for reuse in the process.
    As a non-limiting example, it can be mentioned that the biogas leaving the digestion chamber 10 normally consists of about 65% methane gas, 35% carbon dioxide and traces of, among other things, sulfur compounds. When the gas has passed, the inventive rotary pump with accompanying pressure increase and carbon dioxide emission can be increased to the methane content of the gas to about 94%. By subsequent treatment of the gas in a water scrubber, the methane content of the gas is increased to at least 97% and the gas is now clean enough to be classified as vehicle gas.
    It should be understood that the detailed structure of the device can of course be adapted to the prevailing gas purification needs and that, for example, the scrubber can sometimes be omitted. In a broad sense, the described procedure can be used for purifying olika your different gas types in conjunction with fl your different liquid types.
    It should be understood that the drawings are schematic and that some valves for, among other things, desired pressure reductions have been omitted for reasons of clarity.
    The process is easy to automate.
    The procedure described above can be run continuously or discontinuously, as needed.
    The liquid or water 65 can be doped with suitable additives and / or replaced as needed.
    It should be understood that the biogas plant described above can be varied in design in many different ways in addition to what has been shown.
    Of course, it is also possible to run two or fl your loop pumps in parallel if such a capacity requirement exists. Series connection can also be applicable.
    It should, of course, be understood that many variations are possible within the scope of the present invention. Among other things with regard to the gas composition that is to be separated and / or enriched. A central component of the recovery tank is the spirally designed loop pump, the detailed design of which can of course be adapted to prevailing conditions.
    The invention is thus not limited to what is shown and described, but changes and modifications are of course possible within the scope of the appended claims. -..-...-._._-
    权利要求:
    Claims (1)
    [1]
    A process for purifying / separating / enriching a gas or biogas containing methane and carbon dioxide, characterized in that the gas (200) is processed by a helically constructed loop pump (20) together with a liquid (65) by alternating dosing so that the loop pump is alternately fed with liquid and gas which after pressure build-up leaves the loop pump (20) and is led to a gas separator (30) from which the gas is if necessary led to a liquid scrubber (40) for further purification before the gas is transported to a place of use. Method according to claim 1, characterized in that the liquid in the gas separator is led to a stripper tower (50) for removing carbon dioxide, after which the liquid is led to a liquid tank (60) for reuse in the process / process. Method according to Claim 1 or 2, characterized in that gas generation takes place in a digestion chamber (10) which communicates with the loop pump (20). Method according to one of Claims 1 to 3, characterized in that an agent which dissolves or absorbs carbon dioxide is added to the liquid (65). Device for purification separation / enrichment of a gas or biogas containing methane and carbon dioxide, characterized in that the device comprises a digestion chamber (10), a loop pump (20) with a spiral (flat) loop, a gas separator (30), an optional liquid scrubber (30). 40), a stripper tower (50) and a water tank (60). Device according to Claim 5, characterized in that a 3-way valve (102) for alternating supply of gas and liquid is arranged before the inlet of the loop pump (20). Use of a method according to any one of claims 1-4, characterized in that a loop pump (20) with a spiral (flat spiral) hose loop / pipe loop is used.
    类似技术:
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    同族专利:
    公开号 | 公开日
    SE535276C2|2012-06-12|
    WO2011152770A1|2011-12-08|
    EP2576017A1|2013-04-10|
    EP2576017A4|2014-01-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3024352A1|1980-06-27|1982-01-21|Karlheinz 8000 München Geiger|Combustible gas prodn. - from fermentation gas by compression and selective dissolution leaving high methane gas|
    EP0180670A1|1984-11-01|1986-05-14|Cryotec Energy Systems Co., Ltd.|Recovery of biogas|
    SE452640B|1985-10-18|1987-12-07|Karlsson Per Olof|HOSE PUMP FOR PUMPING OF LIQUID|
    JP2000240562A|1999-02-22|2000-09-05|Takeshi Yoshioka|High pressure gas-liquid pumping device|
    JP2000308811A|1999-04-26|2000-11-07|Takeshi Yoshioka|Gas dissolving and absorbing separator|EP3341110A4|2015-08-28|2019-05-08|Energy Tech Innovations, LLC|Method and apparatus for treating biogas|
    US11268063B2|2015-08-28|2022-03-08|Energy Tech Innovations, LLC|Method and apparatus for treating biogas|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1000592A|SE535276C2|2010-06-01|2010-06-01|Method and apparatus containing a loop pump for separating carbon dioxide from a gas|SE1000592A| SE535276C2|2010-06-01|2010-06-01|Method and apparatus containing a loop pump for separating carbon dioxide from a gas|
    EP11790074.6A| EP2576017A4|2010-06-01|2011-05-31|Method, arrangement and use including a loop pump for separating carbon dioxide from gas|
    PCT/SE2011/000107| WO2011152770A1|2010-06-01|2011-05-31|Method, arrangement and use including a loop pump for separating carbon dioxide from gas|
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