JPH05329320A - Gas separation method and rotary gas separation device - Google Patents
Gas separation method and rotary gas separation deviceInfo
- Publication number
- JPH05329320A JPH05329320A JP4138732A JP13873292A JPH05329320A JP H05329320 A JPH05329320 A JP H05329320A JP 4138732 A JP4138732 A JP 4138732A JP 13873292 A JP13873292 A JP 13873292A JP H05329320 A JPH05329320 A JP H05329320A
- Authority
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- Japan
- Prior art keywords
- gas
- adsorbent
- adsorption
- adsorbents
- pressure
- 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.)
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Landscapes
- Separation Of Gases By Adsorption (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、圧力スウィング型のガ
ス分離方法及びそのための回転式ガス分離装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure swing type gas separation method and a rotary gas separation apparatus therefor.
【０００２】[0002]
【従来の技術】従来の圧力スウィング型ガス分離のやり
方を図５から図８によって説明する。これらの図におい
て、１は上部固定シール板、２は下部固定シール板、
３，４はそれらのシール板に設けられている軸受であ
る。2. Description of the Related Art A conventional pressure swing type gas separation method will be described with reference to FIGS. In these figures, 1 is an upper fixed seal plate, 2 is a lower fixed seal plate,
Reference numerals 3 and 4 are bearings provided on those seal plates.
【０００３】５は上記軸受によって支承され、回転する
回転軸、６は同回転軸に装着されているキー、７は同キ
ーによって回転軸に固定され、上部固定シール板１と下
部固定シール板２との間で回転する回転式吸着器であ
る。８は上部固定シール板１に設けられている原料ガス
流入ポート、９は吸着ガス排出ポートである。Reference numeral 5 designates a rotating shaft which is supported by the bearing and rotates, 6 is a key mounted on the rotating shaft, 7 is fixed to the rotating shaft by the key, and an upper fixed seal plate 1 and a lower fixed seal plate 2 are provided. It is a rotary adsorber that rotates between and. Reference numeral 8 is a raw material gas inflow port provided in the upper fixed seal plate 1, and 9 is an adsorption gas discharge port.
【０００４】１０は下部固定シール板２に設けられた製
品ガス排出ポート、１１はパージガス流出ポートであ
る。１２は吸着器７内に周方向に複数個設けられ、上，
下に貫通している区画室、１３は同区画室の各々に充填
されている吸着剤である。１４は原料ガス流入ポート８
に連なり、原料ガスを圧入するガス圧縮機である。１５
は、吸着ガス排出ポート９に連り、吸着ガスを減圧吸引
して回収する真空ポンプを示している。Reference numeral 10 is a product gas discharge port provided in the lower fixed seal plate 2, and 11 is a purge gas outflow port. A plurality of 12 are provided in the adsorber 7 in the circumferential direction.
Compartments penetrating downward, 13 are adsorbents filled in each of the compartments. 14 is a source gas inflow port 8
It is a gas compressor that is connected to the above and pressurizes the raw material gas. 15
Indicates a vacuum pump connected to the adsorbed gas discharge port 9 to suck and collect the adsorbed gas under reduced pressure.
【０００５】上記装置において、原料ガスはガス圧縮機
１４によって原料流入ポート８から、吸着器７の原料ガ
ス流入ポート８に連る区画室１２に入り、そこに充填さ
れている吸着剤１３によって特定ガスが吸着され、吸着
されなかったガス、すなわち製品ガスが、製品ガス排出
ポート１０を経て排出される。In the above apparatus, the raw material gas enters from the raw material inflow port 8 by the gas compressor 14 into the compartment 12 connected to the raw material gas inflow port 8 of the adsorber 7, and is specified by the adsorbent 13 filled therein. Gas that has been adsorbed and is not adsorbed, that is, product gas, is discharged through the product gas discharge port 10.
【０００６】一方、吸着器７の回転によって、特定ガス
を吸着した吸着剤を内蔵する区画室１２が吸着ガス排出
ポート９に連なったとき、吸着ガスは真空ポンプ１５の
減圧作用によって吸着剤１３から離脱し、排出回収され
る。この状態のとき、吸着ガスの離脱を容易にするため
に、下部固定シール板２のパージガス流入ポート１１よ
り、パージガスとして製品ガスの一部が注入される。On the other hand, when the adsorbent 7 is rotated to connect the compartment 12 containing the adsorbent adsorbing the specific gas to the adsorbed gas discharge port 9, the adsorbed gas is removed from the adsorbent 13 by the depressurizing action of the vacuum pump 15. It leaves and is discharged and collected. In this state, a part of the product gas is injected as a purge gas from the purge gas inflow port 11 of the lower fixed seal plate 2 in order to facilitate the desorption of the adsorbed gas.
【０００７】このように、上記装置によって吸着器の回
転により、各区画室に順次原料ガス供給工程、吸着ガス
分離工程を与えられるために連続的に製品ガスがつくら
れ、特定ガスが回収される。As described above, by rotating the adsorber by the above apparatus, the product gas is continuously produced because the raw material gas supply step and the adsorbed gas separation step are sequentially applied to each compartment, and the specific gas is recovered.
【０００８】[0008]
【発明が解決しようとする課題】上記装置において、吸
着ガス排出ポート９に連なった区画室は、吸着器７の回
転に伴い、吸着ガス排出ポート９との連ながりを断っ
て、吸着ガス排出ポート９、原料ガス流入ポート８のど
ちらにも連通しない位置関係を経て、次に原料ガス流入
ポート８と連通することとなる。In the above apparatus, the compartment connected to the adsorbed gas exhaust port 9 is disconnected from the adsorbed gas exhaust port 9 as the adsorber 7 rotates, and the adsorbed gas exhaust port 9 is exhausted. After communicating with neither the port 9 nor the raw material gas inflow port 8, it will be communicated with the raw material gas inflow port 8 next.
【０００９】このとき、吸着ガス離脱工程によって負圧
であった区画室へ高圧の原料ガスが急激に流入する。圧
力差が大きいこと、流入ポート８と連通直後は流入面積
も小さいことなどより、区画室へ流入する原料ガスの流
速は大きくなる。At this time, the high-pressure raw material gas rapidly flows into the compartment which had a negative pressure due to the adsorbed gas desorption process. Due to the large pressure difference and the small inflow area immediately after communication with the inflow port 8, the flow velocity of the raw material gas flowing into the compartment becomes high.
【００１０】このため、吸着剤粒子の踊りなどが生じ吸
着剤への特定ガスの吸着が充分に行なえず、特定ガスの
うち吸着しないで、製品ガス排出ポートへ排出されるも
のが出るので、製品ガスの純度が落ちる欠点を有してい
る。For this reason, the adsorbent particles may dance and the specific gas cannot be sufficiently adsorbed to the adsorbent, and some of the specific gas may not be adsorbed and may be discharged to the product gas discharge port. It has the drawback that the purity of the gas drops.
【００１１】このように、従来のやり方では、吸着剤が
吸着ガスを離脱工程から加圧ガス吸着工程に移るときに
吸着剤に対し攪乱を与えるという問題があり、この点に
ついて配慮されていなかった。As described above, in the conventional method, there is a problem that the adsorbent disturbs the adsorbent when the adsorbent shifts the adsorbed gas from the desorption process to the pressurized gas adsorption process, and no consideration has been given to this point. ..
【００１２】本発明は、上記従来技術の欠点を解消し、
吸着効率がよく、純度の高い製品ガスを精製することの
できるガス分離方法及びその為の回転式ガス分離装置を
提供しようとするものである。The present invention solves the above-mentioned drawbacks of the prior art,
An object of the present invention is to provide a gas separation method capable of purifying a product gas having high adsorption efficiency and high purity, and a rotary gas separation device therefor.
【００１３】[0013]
【課題を解決するための手段】本発明では、前記した従
来技術にみられた欠点を解消するため特定ガス吸着後の
吸着剤を減圧して吸着ガスを離脱させる工程の後に、減
圧された吸着剤に精製ガスを供給して昇圧する工程を介
在させてから加圧原料ガスと接触させる吸着工程に移行
する。According to the present invention, in order to solve the above-mentioned drawbacks found in the prior art, after the step of depressurizing the adsorbent after adsorbing the specific gas to release the adsorbed gas, the depressurized adsorption is carried out. After passing through the step of supplying purified gas to the agent and increasing the pressure, the step proceeds to the adsorption step of contacting with the pressurized raw material gas.
【００１４】また、圧力スウィング型ガス分離装置にお
いては、吸着器へのガスの流入・排出を切り換える弁板
に対し、分離ガスの排出ポートと原料ガス供給ポートの
間に、吸着器に精製ガスを供給して吸着器内を昇圧する
ための精製ガス供給ポートを設ける。Further, in the pressure swing type gas separation device, the purified gas is admitted to the adsorber between the separation gas exhaust port and the raw material gas supply port with respect to the valve plate for switching the inflow / exhaust of the gas into the adsorber. A purified gas supply port is provided for supplying and boosting the pressure inside the adsorber.
【００１５】このようにポートを設けた弁板を使うこと
により、吸着ガス排出工程から、原料ガス供給工程に移
る工程の間に、負圧になっている区画室を製品ガスで昇
圧させ、次に原料ガス供給工程にしたがわせる構造とな
る。By using the valve plate provided with the port as described above, the negative pressure of the compartment is increased by the product gas during the process of shifting from the adsorption gas discharging process to the raw material gas supplying process. The structure is adapted to the raw material gas supply process.
【００１６】[0016]
【作用】前記したように、本発明によれば、離脱工程後
の吸着剤に対し、精製ガスによる昇圧工程を加えること
により、離脱工程で減圧された吸着剤は減圧を解かれて
から加圧原料ガスと接触されることになり、従来のやり
方のように吸着剤は加圧原料ガスとの接触によって攪乱
を受けることがない。As described above, according to the present invention, the adsorbent after the desorption step is subjected to the step of increasing the pressure with the purified gas, so that the pressure of the adsorbent decompressed in the desorption step is increased after the decompression is released. Since it comes into contact with the source gas, the adsorbent is not disturbed by contact with the pressurized source gas as in the conventional manner.
【００１７】また、本発明の回転式ガス分離装置によれ
ば、分離ガスの排出ポートと原料ガス供給ポートの間に
精製ガス供給ポートを設けた弁板を使っているので吸着
ガス排出工程を終った区画室は、吸着器の回転に伴い、
製品ガス供給ポートと連通することゝなり、区画室は製
品ガスに満たされ、製品ガスの圧力に昇圧される。Further, according to the rotary gas separation apparatus of the present invention, since the valve plate having the purified gas supply port provided between the separation gas discharge port and the raw material gas supply port is used, the adsorption gas discharge step is completed. The compartments, as the adsorber rotates,
By communicating with the product gas supply port, the compartment is filled with the product gas and the pressure of the product gas is increased.
【００１８】このような状態で次に原料ガス流入ポート
に連なると同時に、製品ガス供給ポートと縁が切れる。
製品ガスの圧力は、原料ガスの圧力とほぼ等しいので、
原料ガスの区画室への流入ガス流速は小さく従来構造で
生じるジェット噴流状の流入を防止できる。In this state, the material gas inflow port is connected to the material gas inflow port, and the edge of the product gas supply port is cut off.
Since the product gas pressure is almost equal to the source gas pressure,
The flow velocity of the raw material gas flowing into the compartment is small, and it is possible to prevent the jet-like flow of the conventional structure.
【００１９】[0019]
【実施例】以下本発明を図１から図４を使って１実施例
に従って具体的に説明する。なお、図１から図４におい
て、先に説明した図５から図８に示す従来の装置と同様
の部分には同じ符号を付してあり、その説明を省略す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail according to one embodiment with reference to FIGS. 1 to 4, the same parts as those of the conventional device shown in FIGS. 5 to 8 described above are denoted by the same reference numerals, and the description thereof will be omitted.
【００２０】図１から図４において下部固定シール板２
には図４に見るように、製品ガス排出ポート１０、パー
ジガス流入ポート１１、ならびに製品ガス供給ポート１
６が設けられている。各ポート間の距離は、或る１つの
区画室１２がこれらに同時にオーバラップして連通しな
いようにとられている。1 to 4, the lower fixed seal plate 2 is shown.
As shown in FIG. 4, the product gas discharge port 10, the purge gas inflow port 11, and the product gas supply port 1 are shown in FIG.
6 is provided. The distance between the ports is such that one compartment 12 does not overlap and communicate with them at the same time.
【００２１】上部固定シール板１には、図２に見るよう
に、原料ガス流入ポート８が、下部固定シール板２にお
ける製品ガス排出ポート１０と同位相に設けられてい
る。また吸着ガス排出ポート９は下部固定シール板２に
おけるパージガス流入ポート１１と同位相に設けられて
いる。ポート９，１１間の下部シール板２の製品ガス供
給ポートに対応する位置にはポートがない。下部固定シ
ール板２内の製品ガス流入ポート１６には、製品ガスの
１部が流入するようになっている。As shown in FIG. 2, a raw material gas inflow port 8 is provided in the upper fixed seal plate 1 in the same phase as the product gas discharge port 10 in the lower fixed seal plate 2. The adsorbed gas discharge port 9 is provided in the same phase as the purge gas inflow port 11 in the lower fixed seal plate 2. There is no port at a position corresponding to the product gas supply port of the lower seal plate 2 between the ports 9 and 11. Part of the product gas flows into the product gas inflow port 16 in the lower fixed seal plate 2.
【００２２】本構造におけるガス分離作用について説明
する。吸着器７が図示矢印の方向に回転しているとす
る。区画室１２がまず、原料ガス流入ポート８と連なが
り、区画室１２へ原料ガスが流入し特定ガスは吸着剤１
３に吸着され、残りのガスは製品ガス排出ポート１０よ
り排出される。The gas separating action in this structure will be described. It is assumed that the adsorber 7 is rotating in the direction of the arrow shown. First, the compartment 12 is connected to the raw material gas inflow port 8, the raw material gas flows into the compartment 12, and the specific gas is adsorbent 1
The remaining gas is adsorbed by 3 and is discharged from the product gas discharge port 10.
【００２３】次に区画室１２は吸着ガス排出ポート９な
らびに下部のパージガス流入ポート１１に連ながり、吸
着された特定ガスは真空ポンプ１５による吸引ならびに
下部よりパージガスによる押し上げ作用により離脱回収
される。このとき区画室内は負圧になっている。Next, the compartment 12 is connected to the adsorbed gas exhaust port 9 and the lower purge gas inflow port 11, and the adsorbed specific gas is separated and recovered by the suction by the vacuum pump 15 and the pushing up action by the purge gas from the lower part. At this time, the compartment is under negative pressure.
【００２４】次に区画室１２は、下部の製品ガス供給ポ
ート１６に連ながり、製品ガスで充満されると同時に製
品ガスの圧力まで昇圧される。吸着器７の回転に伴い、
次に原料ガス流入ポート８、製品ガス排出ポート１０に
連ながり、１サイクルが終了する。Next, the compartment 12 is connected to the lower product gas supply port 16 and is filled with the product gas, and at the same time, the pressure of the product gas is increased. With the rotation of the adsorber 7,
Next, the material gas inflow port 8 and the product gas exhaust port 10 are connected to complete one cycle.
【００２５】なお、実施例は吸着器７が回転する場合に
ついて示したが、吸着器７を固定し、上部シール板１、
下部シール板２を回転させる方式についても、同様の作
用、効果を有する。以上本発明を１実施例について説明
したが、具体的な装置の構造やガス分離の具体的やり方
は本発明の範囲内で種々変更してよいことはいうまでも
ない。Although the embodiment shows the case where the adsorber 7 is rotated, the adsorber 7 is fixed and the upper seal plate 1,
The method of rotating the lower seal plate 2 also has the same operation and effect. Although the present invention has been described with reference to one embodiment, it goes without saying that the specific structure of the apparatus and the specific method of gas separation may be variously modified within the scope of the present invention.
【００２６】[0026]
【発明の効果】本発明によれば、減圧による吸着ガス離
脱工程を経た吸着剤は精製ガスにより昇圧されてから加
圧原料ガスと接触される吸着工程に入るので、従来のや
り方にみられたような吸着剤へ攪乱を与えることがな
い。EFFECTS OF THE INVENTION According to the present invention, the adsorbent that has undergone the adsorption gas desorption process by depressurization enters the adsorption process in which the adsorbent is pressurized with the purified gas and then contacted with the pressurized raw material gas. It does not disturb the adsorbent.
【００２７】また、本発明によるガス分離装置によれば
区画室が原料ガス流入ポートに連ながる前に、製品ガス
供給ポートに連通し、製品ガスで満たされ、かつ製品ガ
スの圧力まで昇圧されている。なお、製品ガスの圧力
は、原料ガスの圧力より、少し小さい程度である。Further, according to the gas separation apparatus of the present invention, before the compartment is connected to the raw material gas inflow port, the compartment is connected to the product gas supply port, filled with the product gas, and pressurized to the pressure of the product gas. Has been done. The pressure of the product gas is a little smaller than the pressure of the raw material gas.
【００２８】この状態で、区画室は原料ガス流入ポート
と連通することとなる。原料ガス圧力と区画室内の圧力
との圧力差は小さいために、衝撃的に大きな流速をもっ
て区画室へ流れこむことがない。In this state, the compartment communicates with the raw material gas inflow port. Since the pressure difference between the raw material gas pressure and the pressure in the compartment is small, it does not flow into the compartment with an impulsively high flow velocity.
【００２９】以上のように、本発明によれば吸着剤粒子
が吹きとばされたり、粒子間に大きなガス通路が形成さ
れたりすることがないために、吸着されずに排出される
特定ガスを大幅に少なくでき、製品ガスの純度が上がる
こととなる。なお、製品ガス供給ポートへ流入した製品
ガスは、再度区画室を通過して製品ガス排出ポートより
排出されるので製品ガスが消費されることはなく、ガス
分離効率が低下することはない。As described above, according to the present invention, since the adsorbent particles are not blown out or a large gas passage is not formed between the particles, the specific gas discharged without being adsorbed is removed. It can be significantly reduced, and the purity of the product gas will be increased. Since the product gas flowing into the product gas supply port passes through the compartment again and is discharged from the product gas discharge port, the product gas is not consumed and the gas separation efficiency does not decrease.
【図１】本発明の第１実施例に係るガス分離装置の縦断
面図。FIG. 1 is a vertical cross-sectional view of a gas separation device according to a first embodiment of the present invention.
【図２】図１のＡ−Ａ断面図。FIG. 2 is a sectional view taken along line AA of FIG.
【図３】図１のＢ−Ｂ断面図。FIG. 3 is a sectional view taken along line BB of FIG.
【図４】図１のＣ−Ｃ断面図。FIG. 4 is a sectional view taken along line CC of FIG.
【図５】従来の回転式ガス分離装置の縦断面図。FIG. 5 is a vertical cross-sectional view of a conventional rotary gas separation device.
【図６】図５のＤ−Ｄ断面図。6 is a cross-sectional view taken along line DD of FIG.
【図７】図５のＥ−Ｅ断面図。7 is a sectional view taken along line EE of FIG.
【図８】図５のＦ−Ｆ断面図。8 is a sectional view taken along line FF of FIG.
１ 上部固定シール板 ２ 下部固定シール板 ３ 軸受 ４ 軸受 ５ 回転軸 ６ キー ７ 回転式吸着器 ８ 原料ガス流入ポート ９ 吸着ガス排出ポート １０ 製品ガス排出ポート １１ パージガス流入ポート １２ 区画室 １３ 吸着剤 １４ ガス圧縮機 １５ 真空ポンプ １６ 製品ガス供給ポート 1 Upper fixed seal plate 2 Lower fixed seal plate 3 Bearing 4 Bearing 5 Rotating shaft 6 Key 7 Rotary adsorber 8 Raw material gas inflow port 9 Adsorption gas exhaust port 10 Product gas exhaust port 11 Purge gas inflow port 12 Compartment chamber 13 Adsorbent 14 Gas compressor 15 Vacuum pump 16 Product gas supply port
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大嶋 一晃 長崎市飽の浦町１番１号 三菱重工業株式 会社長崎造船所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuaki Oshima 1-1 1-1 Atsunoura-machi, Nagasaki-shi Nagasaki Shipyard Co., Ltd.
Claims (2)
せ、前記原料ガス中から特定成分ガスを前記吸着剤に吸
着させて残った精製ガスを得る工程と、前記特定成分ガ
スを吸着後の吸着剤を減圧して前記吸着された特定成分
ガスを前記吸着剤から離脱する工程とを順次繰り返えす
ガス分離方法において、前記離脱工程の後の減圧された
吸着剤に前記精製ガスを供給して昇圧する工程を介在さ
せたことを特徴とするガス分離方法。1. A step of bringing a compressed raw material gas into contact with an adsorbent, adsorbing a specific component gas from the raw material gas to the adsorbent to obtain a remaining purified gas, and a step of adsorbing the specific component gas In a gas separation method in which the step of depressurizing the adsorbent and desorbing the adsorbed specific component gas from the adsorbent is sequentially repeated, the purified gas is supplied to the depressurized adsorbent after the desorption step. A gas separation method, characterized in that a step of pressurizing with a gas is interposed.
のガスの流入、排出を切りかえる弁板のいづれか一方を
相対的に回転してガスの吸着と離脱を繰り返えしてガス
分離を行う圧力スウィング型ガス分離装置において、前
記弁板には、分離ガスの排出ポートと原料ガス供給ポー
トとの間に、精製ガスを供給して吸着器内を昇圧するた
めの精製ガス供給ポートを設けたことを特徴とする回転
式ガス分離装置。2. An adsorber having a built-in adsorbent and one of a valve plate for switching inflow and outflow of gas to and from the adsorbent are relatively rotated to repeat adsorption and desorption of gas to separate gas. In the pressure swing type gas separation apparatus for performing the above, the valve plate is provided with a purified gas supply port for supplying the purified gas to pressurize the inside of the adsorber between the separation gas discharge port and the source gas supply port. A rotary gas separation device characterized by being provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4138732A JPH05329320A (en) | 1992-05-29 | 1992-05-29 | Gas separation method and rotary gas separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4138732A JPH05329320A (en) | 1992-05-29 | 1992-05-29 | Gas separation method and rotary gas separation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05329320A true JPH05329320A (en) | 1993-12-14 |
Family
ID=15228875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4138732A Pending JPH05329320A (en) | 1992-05-29 | 1992-05-29 | Gas separation method and rotary gas separation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05329320A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854440A (en) * | 2018-09-28 | 2018-11-23 | 佛山市弘博立环保科技有限公司 | Exhaust treatment system |
| CN111375284A (en) * | 2018-12-30 | 2020-07-07 | 广东环葆嘉节能科技有限公司 | Adsorption device and desorption system |
| CN112410088A (en) * | 2020-11-18 | 2021-02-26 | 四川华蓥山广能集团瓦斯发电有限责任公司 | Gas-liquid separation device for coal mine gas power generation |
-
1992
- 1992-05-29 JP JP4138732A patent/JPH05329320A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854440A (en) * | 2018-09-28 | 2018-11-23 | 佛山市弘博立环保科技有限公司 | Exhaust treatment system |
| CN111375284A (en) * | 2018-12-30 | 2020-07-07 | 广东环葆嘉节能科技有限公司 | Adsorption device and desorption system |
| CN112410088A (en) * | 2020-11-18 | 2021-02-26 | 四川华蓥山广能集团瓦斯发电有限责任公司 | Gas-liquid separation device for coal mine gas power generation |
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