JP4627761B2 - 精製圧縮ガスを生成する方法及び吸着剤ホイールシステム - Google Patents
精製圧縮ガスを生成する方法及び吸着剤ホイールシステム Download PDFInfo
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- B01D2259/402—Further details for adsorption processes and devices using two beds
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- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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Description
また、地球のオゾン層にダメージを与えるフロンガス冷却剤を使った冷却型圧縮空気乾燥機をなくすことで、環境的利点も実現される。
外径103.6cm(3.4フィート)、ハブ径11.43cm(4.5インチ)、表面積0.8332m2(8.969ft2)のホイールが使用される。吸着剤ホイールは、活性媒体体積0.4166m3(14.713ft3)、ホイール空隙率0.73、回転率がサイクル当たり360秒で、1時間に10回転、ゼオライト比0.7、ホイール空隙率0.73、紙密度が1立方センチメートル当たり0.83g、媒体質量が93.3kg(205.7ポンド)の紙。以下のプロセス条件が使われる。供給原料中の水分レベルは、7270ppmから27ppm(v/v)に減らされる。吸着圧力は7.80ATM(abs)である。
3、54、73、104、144、176 再生セクター
4、56、80、120、184、170 冷却セクター
5、52、77、110、156、158 吸着セクター
8、28、76、108、152 凝縮装置(コンデンサ)
Claims (11)
- 精製圧縮ガスを生成する方法において、
a) ガス供給原料を圧縮して圧縮ガス供給原料を生成し、
b) 上記圧縮ガス供給原料を、圧縮ガスを通過させて不純物を取り除くための複数の通路を有するタイプで、少なくとも1つの回転式吸着装置の再生セクターに送り、前記回転式吸着装置が上記圧縮ガスから不純物を吸着する能力を有しており、さらにその回転式吸着装置が回転すると連続的に再生される能力を有しているものであり、
c) 上記圧縮ガス供給原料を、上記回転式吸着装置の再生セクターを通過させて、不純物を取り除き、不純物を含む圧縮ガスの汚染されたストリームをつくりだし、
d) 上記圧縮ガスの汚染されたストリームを冷却して、凝縮装置内で圧縮ガスの上記汚染されたストリームから凝縮可能な不純物を凝縮し、上記凝縮装置から一定量の凝縮された不純物を取り除いて、その凝縮装置から圧縮ガスの冷却されたストリームをつくりだし、
e) 上記圧縮ガスの冷却されたストリームを上記回転式吸着装置の吸着セクターを通過させて、その内部で、さらに一定量の不純物を上記圧縮ガスから取り除いて、精製された圧縮ガス生成物をつくりだす方法であって、
上記精製された圧縮ガス生成物が、上に述べたタイプの少なくとも2つの回転式吸着装置を用いてつくりだされ、上記圧縮ガス供給原料が第1の回転式吸着装置の吸着セクターを通過し、上記精製された圧縮ガス生成物が第2の回転式吸着装置の吸着セクターに送られて、その内部で、上記第2の回転式吸着装置の吸着セクターが残りの凝縮可能な不純物の大部分を除去して、最終的な生成物ガスストリームをつくりだし、その最終的生成物ガスストリームの小部分を分流させ、その少なくとも一部を第2の回転式吸着装置の再生セクターを通過させることを特徴とする精製圧縮ガスを生成する方法。 - 上記最終的生成物ガスストリームの小部分を、第2の回転式吸着装置の再生セクターに送る前に少なくとも2つの画分に分けて、上記の画分のうち第1のものを加熱した後、上記第2の回転式吸着装置の再生セクターを通じて最終的生成物ガスストリームの小部分として送り、その画分のうちの第2のものを冷却して第2の回転式吸着装置の冷却セクターに送り、上記第2の回転式吸着装置のセクターのうちの少なくとも1つを通過させた後、少なくとも1つの画分の少なくとも一部を第1の回転式吸着装置の吸着セクターに送られる上記圧縮ガス供給原料又は圧縮ガスの冷却されたストリームに再導入することを特徴とする請求項1記載の方法。
- 上記第1及び第2の画分の少なくとも一部が再導入前に合流され、この合流により混合されたストリームの少なくとも一部が上記少なくとも2つの回転式吸着装置のうちの第1のものの冷却セクターを通じて送られることを特徴とする請求項2記載の方法。
- 上記圧縮ガスの汚染されたストリームの流出ガスが、冷却前に上記圧縮ガス供給原料と熱交換されることを特徴とする請求項1〜3のいずれか1項に記載の方法。
- 上記精製された圧縮ガス生成物の体積で2〜6%に相当する小部分が、上記回転式吸着装置に送られて冷却セクターを冷却することを特徴とする請求項1記載の方法。
- 上記ガス供給原料が空気か炭化水素であり、上記不純物が水である請求項1〜5のいずれか1項に記載の方法。
- 上記ガスがエチレン及び天然ガスで構成される群から選択される請求項1〜5のいずれか1項に記載の方法。
- 各回転式吸着装置内で、再生セクターを通じてのガス流が吸着セクターを通じてのガス流に対して向流であり、すべての冷却セクターを通じて流れるガス流が吸着セクターを通じてのガス流と並流であることを特徴とする請求項1〜6のいずれか1項に記載の方法。
- 上記供給原料ガスが空気からなり、上記方法が、
空気をコンプレッサーに送って、圧縮ガス供給原料としての加熱、圧縮された空気のストリームをつくりだし、上記再生セクター内で水分を除去して、上記圧縮ガスの汚染されたストリームとしての冷却された、湿った圧縮空気のストリームをつくりだし、上記圧縮ガスの冷却された、湿った空気のストリームを第1の熱交換器を通過させて凝縮装置に送り込み、水分を凝縮不純物として除去し、上記圧縮ガスの冷却されたストリームとして圧縮空気のより冷たいストリームをつくりだし、上記圧縮空気のより冷たいストリームを上記回転式吸着装置の吸着セクターに送って水分を吸着し、精製された圧縮ガス生成物としての乾燥された圧縮空気生成物ストリームをつくりだし、そして、上記乾燥された圧縮空気生成物ストリームガスを第2の熱交換器内で望ましい温度に冷却し、上記第2の熱交換器からの冷却された乾燥圧縮空気の小部分を上記回転式吸着装置の冷却セクターに送ることによって、乾燥した圧縮空気をつくりだすことを特徴とする請求項1〜6のいずれか1項に記載の方法。 - 少なくとも1つの吸着セクターと、少なくとも1つの再生セクター及び少なくとも1つの冷却セクターを含んでいる吸着剤ホイールシステムにおいて、上記吸着剤ホイールシステムが1つ以上の吸着剤ホイールを含んでおり、それら吸着剤ホイールのそれぞれが2つの平らで、上記吸着剤ホイールの直径に平行な側面及び上記吸着剤ホイールの回転軸に平行な連続周縁を有するシステムであって、
上記システムが少なくとも2つの吸着剤ホイールを有していて、低水分ガスストリームを生成するための2段階乾燥装置を備えており、さらに上記システムが、
a) 複数の通路を有する第1及び第2の回転式接触装置を備えている第1及び第2の吸着剤ホイールであって、それを通じて圧縮ガスが流れ、そのガスストリームから不純物としての水分を吸着すると同時にそのホイールが回転すると連続的に再生される第1及び第2の吸着剤ホイールと、
b) 上記2つの回転式接触装置のうちの第1のものの再生セクターへの水分を含んだガスの圧縮フローを受け入れるための少なくとも1つの取入れ口と、
c) 水分を含んだガスの圧縮フローを上記再生セクターから凝縮装置に送り、そこで、凝縮された水を不純物として取り除き、乾燥したガスフローをつくりだす手段と、
d) 上記ガスの乾燥されたフローを上記第1の回転式接触装置の吸着ゾーンを通じて送るための第1の通路と、
e) 上記第1の回転式接触装置の吸着ゾーンからの上記ガスの乾燥されたフローを、ガス生成物ストリームを生成するための上記第2の回転式接触装置の吸着ゾーンを通じて送るための第2の通路と、
f) 生成物として用いるために上記ガス生成物ストリームの過半数部分を回収するための取出し口と、
g) 上記ガス生成物ストリームの第1の小部分を加熱器を通じて送りそのガス生成物ストリームを加熱し、さらにその加熱された第1の小部分を上記第2の回転式接触装置の再生ゾーンに送るための第3の通路と、そして
h) 上記ガス生成物ストリームの第2の小部分をその第2の小部分を冷却するための冷却器に送り、さらにその冷却された第2の小部分を上記第2の回転式接触装置の冷却ゾーンに送るための第4の通路と、
を含んでいることを特徴とする吸着剤ホイールシステム。 - 第5の通路が、圧力ブースターを通じて、上記第1及び第2の小部分のうちの少なくとも1つを送り、そして上記水分を含んだガス内に送ることを特徴とする請求項10記載の吸着剤ホイールシステム。
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US10/755,453 US7166149B2 (en) | 2004-01-12 | 2004-01-12 | Adsorption process for continuous purification of high value gas feeds |
PCT/US2005/001201 WO2005070518A1 (en) | 2004-01-12 | 2005-01-12 | Process for producing purified compressed gas and adsorbent wheel system |
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JP2007517663A JP2007517663A (ja) | 2007-07-05 |
JP2007517663A5 JP2007517663A5 (ja) | 2008-02-14 |
JP4627761B2 true JP4627761B2 (ja) | 2011-02-09 |
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EP (1) | EP1722881B1 (ja) |
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- 2005-01-12 EP EP05705698A patent/EP1722881B1/en not_active Ceased
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Also Published As
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WO2005070518A1 (en) | 2005-08-04 |
US20050150378A1 (en) | 2005-07-14 |
NO20063651L (no) | 2006-09-21 |
JP2007517663A (ja) | 2007-07-05 |
US7166149B2 (en) | 2007-01-23 |
EP1722881A1 (en) | 2006-11-22 |
EP1722881B1 (en) | 2011-10-05 |
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