JP6733093B1 - ゼオライト膜に供する被処理流体の処理方法 - Google Patents
ゼオライト膜に供する被処理流体の処理方法 Download PDFInfo
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 147
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- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
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- PQLVXDKIJBQVDF-UHFFFAOYSA-N acetic acid;hydrate Chemical compound O.CC(O)=O PQLVXDKIJBQVDF-UHFFFAOYSA-N 0.000 description 1
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
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- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/028—Molecular sieves
- B01D71/0281—Zeolites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
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- B01D53/34—Chemical or biological purification of waste gases
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- B01D61/36—Pervaporation; Membrane distillation; Liquid permeation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D65/08—Prevention of membrane fouling or of concentration polarisation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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Abstract
Description
被処理流体の調製
被処理流体として、エタノール/水を重量比85/15で混合し、この混合液に、ギ酸、酪酸、3−メチル−1−ブタノール、ジメチルスルフィド、硝酸の各化合物を不純物として、不純物濃度が500ppmになるように混入させた。これらの不純物が含まれた被処理流体に加え、比較対象として不純物が含まれていない被処理流体も準備した。
図3に前処理装置を模式的に示す。図3において、前処理装置4は、内部にゼオライト粒子を充填した粒子充填層5を有する容器15からなり、容器15の下方に被処理流体10が流入する供給口16を有し、容器15の上部に前処理流体10が流出する排出口17を有する。容器10の内部の供給口14より高い位置に、仕切り板18が配置され、仕切り板18の上側にゼオライト粒子からなる粒子充填層5が形成される。仕切り板18には、被処理流体10のみを通過するようにした複数の小孔が開けられている。仕切り板18の下側は、被処理流体10が偏流の状態で粒子充填層5に入るのを防ぐためバッファ相19が形成されている。粒子充填層5の高さ(仕切り板18の上表面から粒子充填層5の上面までの高さ)と、被処理流体10の供給流量を変えることにより、被処理流体10の滞留時間を増減することができる。粒子充填層5の高さは、ゼオライト粒子(NaA型ゼオライトを含む造粒体、東ソー社製品名A−4、平均粒子径6mm)の充填量により調節することができる。実施例では、粒子充填層5の高さと被処理流体10の供給流量を表1のように組み合わせることにより、滞留時間を設定した。
実際にイソプロパノールを精製回収することを想定し、イソプロパノール/水混合液を被処理流体としてゼオライト膜で脱水するとき、ゼオライト膜の性能低下への前処理の有無の影響を実証した。
この実施例により、被処理流体中に含まれる高濃度の水がゼオライト膜を崩壊させる化合物であること、しかし本発明の被処理流体の処理方法のより、ゼオライト膜の性能低下を抑制可能であることを実証する。
イソプロパノールの精製回収システムにおいて、イソプロパノール/水からなる被処理流体のNaA型ゼオライト膜からなる膜モジュールの上流側に、NaA型ゼオライト粒子を高さ1mに充填した前処理装置を配置し、約1年間、約8000時間運転した。被処理流体は、イソプロパノール/水の重量比が、およそ90/10重量%で、不純物としてシュウ酸を平均で約500ppm含有していた。この被処理流体を、蒸発器を使用して蒸発させ、蒸気状態で前処理装置に、線速0.8m/秒で供給し前処理を行った。
2 分離膜
3 粒子充填層
4 前処理装置
5 粒子充填層
10 被処理流体
11 透過流体
12 濃縮流体
13 前処理流体
Claims (6)
- 液体混合物または気体混合物からなり、ゼオライト膜を崩壊させる化合物を含む被処理流体を処理する方法であって、前記ゼオライト膜と同種のゼオライトからなる粒子を、前記ゼオライト膜を有する膜モジュール内の前記ゼオライト膜の上流側の粒子充填層に充填し、前記被処理流体を前記粒子に接触させて、前記粒子を構成するゼオライトを崩壊させ、崩壊により発生した成分を前記被処理流体に含有させることを特徴とするゼオライト膜に供する被処理流体の処理方法。
- 前記ゼオライト膜を崩壊させる化合物が、有機酸および/または無機酸であり、前記被処理流体がこれらを2000ppm以下含有することを特徴する請求項1に記載の処理方法。
- 前記ゼオライト膜を崩壊させる化合物が、3−メチル−1−ブタノールおよび/またはアセタールであり、前記被処理流体がこれらを2000ppm以下含有することを特徴する請求項1に記載の処理方法。
- 前記ゼオライト膜を崩壊させる化合物が、ジメチルスルフィドおよび/またはジメチルスルホキシドであり、前記被処理流体がこれらを2000ppm以下含有することを特徴する請求項1に記載の処理方法。
- 前記被処理流体が液体混合物であり、前記粒子と接触する時間が60〜600秒であることを特徴とする請求項1〜4のいずれかに記載の処理方法。
- 前記被処理流体が気体混合物であり、前記粒子と接触する時間が1〜60秒であることを特徴とする請求項1〜4のいずれかに記載の処理方法。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
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JP2019089007A JP6733093B1 (ja) | 2019-05-09 | 2019-05-09 | ゼオライト膜に供する被処理流体の処理方法 |
SG11202100090PA SG11202100090PA (en) | 2019-05-09 | 2019-07-29 | Treatment method for fluid to be treated supplied to zeolite membrane |
EP19927589.2A EP3967390A4 (en) | 2019-05-09 | 2019-07-29 | METHOD OF TREATMENT FOR A LIQUID TO BE SUPPLIED TO A ZEOLITE MEMBRANE |
PCT/JP2019/029591 WO2020225931A1 (ja) | 2019-05-09 | 2019-07-29 | ゼオライト膜に供する被処理流体の処理方法 |
KR1020207022270A KR102267831B1 (ko) | 2019-05-09 | 2019-07-29 | 제올라이트 막에 제공하는 피처리 유체의 처리방법 |
US17/055,823 US11090618B1 (en) | 2019-05-09 | 2019-07-29 | Treatment method of fluid to be treated by zeolite membrane |
CN201980016362.0A CN112118902A (zh) | 2019-05-09 | 2019-07-29 | 向沸石膜供应的被处理流体的处理方法 |
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CN1195578C (zh) * | 2003-05-15 | 2005-04-06 | 大连理工大学 | 沸石分子筛膜用于二氯乙烷和氮气混合物的分离方法 |
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US7897122B2 (en) * | 2005-02-14 | 2011-03-01 | Media And Process Technology | Hybrid adsorptive membrane reactor |
JP2007055970A (ja) * | 2005-08-26 | 2007-03-08 | Mitsui Eng & Shipbuild Co Ltd | メタノール製造用反応器及びメタノール製造方法 |
CN101259383B (zh) * | 2008-05-05 | 2012-05-23 | 江西师范大学 | 一种用于液体混合物分离的耐酸性沸石分子筛膜及其制备方法 |
JPWO2012018007A1 (ja) * | 2010-08-03 | 2013-10-03 | 三菱レイヨン株式会社 | メタノールの分離方法 |
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US20210245113A1 (en) | 2021-08-12 |
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CN112118902A (zh) | 2020-12-22 |
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