JPH047014A - Device for separating polar gas - Google Patents
Device for separating polar gasInfo
- Publication number
- JPH047014A JPH047014A JP2108746A JP10874690A JPH047014A JP H047014 A JPH047014 A JP H047014A JP 2108746 A JP2108746 A JP 2108746A JP 10874690 A JP10874690 A JP 10874690A JP H047014 A JPH047014 A JP H047014A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- absorption
- liquid
- exhaust gas
- polar
- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 239000012528 membrane Substances 0.000 claims abstract description 14
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 36
- 238000010521 absorption reaction Methods 0.000 abstract description 25
- 238000000034 method Methods 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 2
- 238000003795 desorption Methods 0.000 abstract 1
- 239000012510 hollow fiber Substances 0.000 description 7
- 230000008929 regeneration Effects 0.000 description 6
- 238000011069 regeneration method Methods 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011736 potassium bicarbonate Substances 0.000 description 2
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 2
- 235000015497 potassium bicarbonate Nutrition 0.000 description 2
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 2
- 230000001141 propulsive effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Gas Separation By Absorption (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は排ガス中の極性ガスを連続的に分離する装置に
関し、特に環境装置の排ガス処理プロセスに有利に適用
することができる腹式分離装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for continuously separating polar gases in exhaust gas, and in particular to an abdominal separation apparatus that can be advantageously applied to exhaust gas treatment processes of environmental equipment. Regarding.
従来排ガス中の特定成分を除去する方法は、第３図に示
すように吸収塔１１を２基設け、基は吸収中、もう一基
は再生中として、これを交互に用いることにより操作が
行われていた。The conventional method for removing specific components from exhaust gas is to install two absorption towers 11 as shown in Figure 3, and operate by alternately using one absorption tower and the other regeneration. I was worried.
この際、吸着剤としては、ゼオライト、固体アミン等が
使用されている。再生操作は圧力スイング法（ＰＳＡ法
）の場合には゛減圧（吸着時は加圧操作）することによ
り、普通の吸着法の場合には水蒸気による加熱により、
行われていた。At this time, zeolite, solid amine, etc. are used as the adsorbent. In the case of the pressure swing method (PSA method), the regeneration operation is performed by reducing the pressure (increasing the pressure during adsorption), and in the case of the ordinary adsorption method, by heating with steam.
It was done.
従来法は吸着法である故、連続操作が不可能であり、吸
着塔を２基設け、交互に吸着と再生をくり返す操作にな
る。従って吸着塔が２基必要で、しかる操作が複雑にな
るばかりでなく、再生操作が必要であるので、これに大
きなエネルギが必要になるといったような問題点がある
。Since the conventional method is an adsorption method, continuous operation is not possible, and two adsorption towers are installed, and adsorption and regeneration are alternately repeated. Therefore, two adsorption towers are required, which not only complicates the operation, but also requires a regeneration operation, which requires a large amount of energy.
本発明は上記技術水準に鑑み、連続操業が可能で、かつ
低エネルギで排ガス中の極性ガスを分離し得る装置を提
供しようとするものである。In view of the above-mentioned state of the art, the present invention seeks to provide an apparatus that is capable of continuous operation and is capable of separating polar gases in exhaust gas with low energy consumption.
本発明は疎水性多孔質膜モジュールを二基使用し、一基
は排ガス中の極性ガス吸収用の気液の接触器とし、もう
一基は吸収した極性ガスの放散用の気液接触器として用
いるようにしてなることを特徴とする排ガス中の極性ガ
ス分離装置である。The present invention uses two hydrophobic porous membrane modules, one as a gas-liquid contactor for absorbing polar gas in exhaust gas, and the other as a gas-liquid contactor for dissipating the absorbed polar gas. A device for separating polar gases in exhaust gas, characterized in that the device is used for separating polar gases in exhaust gas.
本発明装置を更に詳述すると、本発明装置は中空糸疎水
性多孔質Ｍ（素材はポリエチレン、ポリプロピレン、ポ
リテトラフルオロエチレン）で作られたモジュールを２
本用い、−本は吸収用、もう−本は放散用（再生用）と
して用い、吸収液として、吸収、放散が容易に行える薬
液を用いることにより、吸収、放散の操作を連続して行
えるようにしたものである。To explain the device of the present invention in more detail, the device of the present invention has two modules made of hollow fiber hydrophobic porous M (materials include polyethylene, polypropylene, and polytetrafluoroethylene).
One book is used for absorption, the other one is used for dispersion (regeneration), and by using a chemical solution that can be easily absorbed and dissipated as the absorption liquid, absorption and dissipation operations can be performed continuously. This is what I did.
中空糸疎水性多孔質膜モジュールは内径数百ミクロン、
肉厚数十ミクロンの疎水性多孔質膜を円筒容器に充填し
たものであり、従来の気液接触装置（ラシヒリング等を
使用した充填塔等）に比ベコンパクトになる。The hollow fiber hydrophobic porous membrane module has an inner diameter of several hundred microns,
A cylindrical container is filled with a hydrophobic porous membrane several tens of microns thick, making it more compact than conventional gas-liquid contact devices (packed towers using Raschig rings, etc.).
気液の接触は膜に無数にあいた小さな穴（０，０１〜１
μｍ）を通して行われる。すなわち膜素材が疎水性であ
るため、液は膜表面ではじかれ、穴の中には入っていけ
ない。Gas-liquid contact occurs through countless small holes (0.01~1) in the membrane.
μm). In other words, because the membrane material is hydrophobic, the liquid is repelled by the membrane surface and cannot enter the holes.
吸収、放散は目的ガス成分の気液中の蒸気圧差により行
なわれる。すなわち、気体中の目的ガス成分の分圧をＰ
ｏ、液中のそれをＰ、とすると（１）吸収
ＰＣ，の方がＰＬより高くなるように操作する。Absorption and dissipation are performed by the vapor pressure difference between the gas and liquid of the target gas component. In other words, the partial pressure of the target gas component in the gas is P
(1) Absorption PC is operated so that it is higher than PL.
推進力は（Ｐ、−ＰＬ）である。The propulsive force is (P, -PL).
（２）放散 Ｐ、の方がＰ、より高くなるように操作する。(2) Dissipation Operate so that P is higher than P.
推進力は（Ｐ、−ＰＧ）である。The propulsive force is (P, -PG).
〔実施例１〕
本発明の一実施例として、都市ガスのカロリアップの例
を第１図によって説明する。[Example 1] As an example of the present invention, an example of increasing the calorie content of city gas will be explained with reference to FIG.
ＬＰＧより製造された都市ガス中には１５〜２０％のＣ
Ｄ、（残りはＣＯ，Ｈ，、ＣＨ，、Ｃ，）１．０等）を
含むが、このガスよりＣＤ２を除去することにより、力
スのカロリーアップを行うことができる。City gas produced from LPG contains 15-20% C.
D, (the remainder is CO, H,, CH,, C,) 1.0, etc.), but by removing CD2 from this gas, it is possible to increase the calories of the gas.
被処理ガス６を膜モジュールＡ（吸収用）のシェル側（
中空糸の外）に流し、中空糸の中を流れている吸収液５
によりＣ０２を選択的に吸収させ、精製ガス７を得る。The gas to be treated 6 is transferred to the shell side (for absorption) of the membrane module A (for absorption).
Absorption liquid 5 flowing inside the hollow fiber
The purified gas 7 is obtained by selectively absorbing CO2.
Ｐｏ２を吸収した吸収液５は膜モジュールＢ（放散用）
の中空糸の中に流され、シェル側（中空糸の外）に流さ
れているパージガス（空気）によりＰｏ２が散散され、
吸収液が再生される。こ＼で、Ｐｏ２を含む排ガスは空
気中に排出される。再生された吸収液は吸収液タンク４
に貯蔵され、再びポンプ３により膜モジュールＡ（吸収
用）に送られる。吸収液としては水またはに、ＣＯ，、
ＫＨＣＯ３、ジェタノールアミンの混合液が使用される
。Absorbing liquid 5 that has absorbed Po2 is transferred to membrane module B (for dissipation)
Po2 is dispersed by the purge gas (air) flowing into the hollow fiber and flowing to the shell side (outside the hollow fiber).
The absorption liquid is regenerated. At this point, the exhaust gas containing Po2 is discharged into the air. The regenerated absorption liquid is stored in absorption liquid tank 4.
and is sent to the membrane module A (for absorption) again by the pump 3. As an absorbing liquid, water or CO,
A mixture of KHCO3 and jetanolamine is used.
この実施例１の都市ガスのカロリーアップを例に、従来
方法と比較を行ったものを下表に示す。Taking the calorie increase of city gas in Example 1 as an example, a comparison with the conventional method is shown in the table below.
〔実施例２〕
本発明の一実施例として、煙道ガス中のＰｏ２除去の態
様を第２図によって画明する。[Example 2] As an example of the present invention, a mode of removing Po2 from flue gas will be explained with reference to FIG. 2.
火力発電所の煙道ガス中に含まれるｃｏ、は地球の温暖
化につながるため分離除去する必要がある。Co2 contained in the flue gas of thermal power plants must be separated and removed because it contributes to global warming.
被処理ガス６を膜モジュールＡ（吸収用）のシェル側（
中空糸の外）に流し、中空糸の中を流れている吸収液５
によりＣＬを選択的に吸収させ精製ガス７を得る。The gas to be treated 6 is transferred to the shell side (for absorption) of the membrane module A (for absorption).
Absorption liquid 5 flowing inside the hollow fiber
CL is selectively absorbed to obtain purified gas 7.
Ｃ０２を吸収した吸収液５は膜モジュールＢ（放散用）
の中空糸の中に流され、シェル側（中空糸の外）が真空
ポンプ１ｏにより減圧されているため、Ｐｏ２が放散さ
れ、吸収液が再生される。再生された吸収液５は吸収液
タンク４に貯蔵され、再びポンプ３により膜モジュール
Ａ（吸収用）に送られる。ここで真空ポンプ１０の排気
ガスとして回収されたｃｏ、は何らかの方法で固定され
る。吸収液としては水またはに２ＣＯ，、ＫＨＣＯ３，
ジェタノールアミンの混合液が使用される。Absorbing liquid 5 that has absorbed C02 is transferred to membrane module B (for dispersion)
Since the shell side (outside the hollow fiber) is depressurized by the vacuum pump 1o, Po2 is dissipated and the absorption liquid is regenerated. The regenerated absorption liquid 5 is stored in the absorption liquid tank 4 and sent again to the membrane module A (for absorption) by the pump 3. Here, the CO recovered as exhaust gas from the vacuum pump 10 is fixed by some method. As the absorption liquid, water or 2CO, KHCO3,
A mixture of jetanolamines is used.
〔実施例３〕
排ガス中のＳ０２ 、 Ｈ，Ｓ 、 ＮＨ３の除去は実
施例２と同じ操作によって行われる。但し、吸収液はそ
れぞれに最適なものを使用する必要がある。[Example 3] S02, H, S, and NH3 in the exhaust gas are removed by the same operation as in Example 2. However, it is necessary to use the optimal absorption liquid for each.
本発明によれば連続操作が可能であり、再生操作が容易
で、かつ要するエネルギーが低い等の効果がある。According to the present invention, continuous operation is possible, regeneration operation is easy, and energy required is low.
第１図及び第２図は本発明の実施例の概略図、第３図は
従来の排ガスから特定成分を除去する装置の一態様の概
略図である。1 and 2 are schematic diagrams of an embodiment of the present invention, and FIG. 3 is a schematic diagram of an embodiment of a conventional apparatus for removing specific components from exhaust gas.
Claims (1)
中の極性ガス吸収用の気液の接触器とし、もう一基は吸
収した極性ガスの放散用の気液接触器として用いるよう
にしてなることを特徴とする排ガス中の極性ガス分離装
置。Two hydrophobic porous membrane modules are used; one is used as a gas-liquid contactor for absorbing polar gases in exhaust gas, and the other is used as a gas-liquid contactor for dissipating the absorbed polar gas. A device for separating polar gases in exhaust gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2108746A JPH047014A (en) | 1990-04-26 | 1990-04-26 | Device for separating polar gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2108746A JPH047014A (en) | 1990-04-26 | 1990-04-26 | Device for separating polar gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH047014A true JPH047014A (en) | 1992-01-10 |
Family
ID=14492462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2108746A Pending JPH047014A (en) | 1990-04-26 | 1990-04-26 | Device for separating polar gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH047014A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009113994A (en) * | 2006-07-17 | 2009-05-28 | General Electric Co <Ge> | Carbon dioxide capture system |
| JP2019205966A (en) * | 2018-05-29 | 2019-12-05 | イーセップ株式会社 | Method for separation of carbon dioxide (co2) membrane |
-
1990
- 1990-04-26 JP JP2108746A patent/JPH047014A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009113994A (en) * | 2006-07-17 | 2009-05-28 | General Electric Co <Ge> | Carbon dioxide capture system |
| JP2019205966A (en) * | 2018-05-29 | 2019-12-05 | イーセップ株式会社 | Method for separation of carbon dioxide (co2) membrane |
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