JP2017507011A - ナノ構造担体上の変性アミンの再生可能な吸着剤 - Google Patents
ナノ構造担体上の変性アミンの再生可能な吸着剤 Download PDFInfo
- Publication number
- JP2017507011A JP2017507011A JP2016535689A JP2016535689A JP2017507011A JP 2017507011 A JP2017507011 A JP 2017507011A JP 2016535689 A JP2016535689 A JP 2016535689A JP 2016535689 A JP2016535689 A JP 2016535689A JP 2017507011 A JP2017507011 A JP 2017507011A
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- Prior art keywords
- adsorbent
- amine
- aldehyde
- carbon dioxide
- mixture
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- Granted
Links
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Abstract
Description
本発明に従う吸着剤を2つの工程で簡便に調製した。
ペンタエチレンヘキサアミン(PEHA)、H(NHCH2CH2)5NH2、及びホルムアルデヒドに基づく変性ポリアミン化学種を以下のとおり調製した。30gのPEHAを水に溶解させた。20mLの水中に希釈された10.45gのホルムアルデヒド水溶液(水中37%ホルムアルデヒド)を次にPEHA溶液に滴下添加した。混合物を室温で20時間撹拌した。その後、温度を徐々に100℃まで上げ、その温度を90分間保って水を除去した。残留する水は、ロータリーエバポレーターにより真空下で加熱し、次いで、一晩真空(<1mmHg)にすることにより除去した。得られた生成物は粘性のある黄色乃至橙色の液体であった。この変性ポリアミンにPEHA−HCHO−1−1の名称を付けた。
50質量%のPEHA−HCHO−1−1及び50質量%の7nmの平均一次粒子径及び390m2/g±40m2/gの比表面積を有するヒュームドシリカから構成される担持された変性ポリアミン吸着剤。
PEHA−HCHO−1−1を100mLの水に溶解させた。この溶液を、次に、撹拌しながら、300mLの水中の懸濁状態の等量のシリカに徐々に加えて担体上に変性ポリアミンが良好に分散されるようにした。混合物を室温で20時間撹拌し、次に、ロータリーエバポレーターにより真空下で加熱し、次に一晩真空(<1mmHg)にすることにより混合物から水を除去した。得られた担持されたポリアミン吸着剤は白色固体であり、この固体を粉砕し篩分けして均一な粉末が生じた。
この例は、53質量%のPEHA−HCHO−1−1及び47質量%の7nmの平均一次粒子径及び390m2/g±40m2/gの比表面積を有するヒュームドシリカから構成される担持された変性ポリアミン吸着剤の「ワンポット(one pot)」での調製を例示する。30.1g(0.1295モル)のPEHAを120mLの水に溶解させた。この溶液を、次に、撹拌下で、300mLの水中の懸濁状態の30.1gのヒュームドシリカに加えて担体上にPEHAが良好に分散されるようにした。10.5g(0.1295モル)のホルムアルデヒド水溶液(水中37%ホルムアルデヒド)を室温でPEHA/ヒュームドシリカ溶液に滴下添加(0.3mL/分の添加速度)する前に撹拌を1時間維持した。混合物をさらに20時間撹拌した。ロータリーエバポレーターにより真空下で加熱し、次に一晩真空(<1mmHg)にすることにより水を除去した。得られた生成物は白色粉末状の固体であった。
Claims (29)
- ガス混合物から二酸化炭素を吸着するための固体吸着剤であって、変性ポリアミン及びナノ構造固体担体を含み、前記変性ポリアミンがアミンとアルデヒドの反応生成物である、固体吸着剤。
- 前記ナノ構造担体が約100nm未満、好ましくは3〜50nm、3〜30nm、又は3〜15nmの一次粒子径を有する、請求項1に記載の吸着剤。
- 前記ナノ構造担体が、シリカ、シリカ−アルミナ、ケイ酸カルシウム、カーボンナノチューブ、カーボン、又はそれらの混合物である、請求項1又は2に記載の吸着剤。
- 前記変性ポリアミンが、前記アミンを水に溶解させてアミン溶液を形成し;前記アルデヒドを前記アミン溶液に加え、前記アミンとアルデヒドの液体反応生成物を形成する時間撹拌又はかき混ぜて混合物を形成し;次いで、前記混合物を、必要に応じて真空条件下で、加熱して、水を除去することによって、粘性液体として得られる、請求項1、2又は3に記載の吸着剤。
- 前記アミンが、第1級、第2級もしくは第3級のアルキル−もしくはアルカノールアミン、芳香族アミン、混成アミン、又はそれらの組み合わせである、請求項1〜4のいずれか一項に記載の吸着剤。
- 前記アミンが、テトラエチレンペンタアミン、ペンタエチレンヘキサアミン、トリエチレンテトラアミン、ジエチレントリアミン、エチレンジアミン、ヘキサエチレンヘプタアミン、ポリエチレンイミン、又はそれらの組み合わせである、請求項1〜5のいずれか一項に記載の吸着剤。
- 前記アルデヒドが、単純なアルデヒド、ジアルデヒド、トリアルデヒド、高分子アルデヒド化合物、又はそれらの混合物である、請求項1〜6のいずれか一項に記載の吸着剤。
- 前記アルデヒドが、ホルムアルデヒド、グリオキサール(エタンジアール)、グルタルアルデヒド(ペンタン−1,5−ジアール)、スクシンジアルデヒド(ブタンジアール)、o−フタルアルデヒド、m−フタルアルデヒド、p−フタルアルデヒド、又はそれらの混合物である、請求項1〜7にいずれか一項に記載の吸着剤。
- 前記変性ポリアミンが、約25%〜75%もしくは40%〜60%の量で、又は質量
基準で担体にほぼ等しい量で存在する、請求項1に記載の吸着剤。 - 前記吸着剤の約25質量%以下の量のポリオールをさらに含む、請求項1に記載の吸着剤。
- 前記ポリオールが、グリセロール、エチレングリコールのオリゴマー、ポリエチレングリコール、ポリエチレンオキシド、並びにそれらのエーテル、変性物及び混合物から成る群から選ばれる、請求項10に記載の吸着剤。
- 前記ナノ構造担体がナノシリカであり、前記変性アミンが、前記吸着剤の約25質量%〜75質量%の量で存在し、前記吸着剤は、さらに、前記吸着剤の約25質量%以下のポリエチレングリコールを含む、請求項1に記載の吸着剤。
- 溶媒中で前記アミン、アルデヒド及び担体を組み合わせて前記アミン及びアルデヒドが化合して前記担体上に備えられるのに十分な時間混合及び加熱し、次いで、水を除去して前記吸着剤を固体として得ることを含む、請求項1に記載の吸着剤の製造方法。
- 前記ナノ構造担体を前記溶媒中に分散させて懸濁液を形成し;前記アミンを前記溶媒中に溶解させてアミン溶液を形成し;前記アルデヒドを溶媒中に溶解させてアルデヒド溶液を形成し;及び、前記懸濁液並びにアミン溶液及びアルデヒド溶液を組み合わせる、請求項13に記載の方法。
- さらに、前記アミンを水に溶解させてアミン溶液を形成し;前記アルデヒドの水溶液を前記アミン溶液に加えて混合物を形成し;前記混合物を15〜30℃の温度で1〜50時間混合し;次いで前記混合物を少なくとも100℃で30秒間〜60分間加熱して一部又は全ての水を除去し、残りの水を真空下での加熱により除去して変性アミンを粘性液体として得ることを含む、請求項13に記載の方法。
- 前記吸着剤が、撹拌しながら前記粘性液体を前記担体の分散液に加えて前記変性ポリアミンを前記担体上に分散させることにより形成される、請求項15に記載の方法。
- さらに、前記吸着剤を得るために水を除去する前にポリオールを加えることを含む、請求項13、14又は15に記載の方法。
- さらに、前記懸濁液にポリオールを添加すること;前記ポリオールの前記添加後に前記懸濁液を乾燥させて担持されたポリオールを形成すること;前記担持されたポリオールを前記溶媒中に分散させること;及び、前記溶媒を除去する前に前記担持され分散されたポリオールと前記アミン溶液を組み合わせて前記吸着剤を形成することを含む、請求項17に記載の方法。
- 吸着剤によりガス混合物から二酸化炭素を連続的に捕捉し分離する方法であって、請求項1に記載の吸着剤を前記ガス混合物に暴露して前記吸着剤により二酸化炭素を吸収すること、及び、吸収又は捕捉された二酸化炭素を含む前記吸着剤を処理して二酸化炭素を純粋二酸化炭素として放出させることを含む方法。
- 前記吸着剤は、固定、移動又は流動床で供され、前記ガスと前記床とを前記吸着剤に二酸化炭素を捕捉させるのに十分な時間接触させる、請求項19に記載の方法。
- 前記吸着剤を十分な熱、減圧、真空、ガスパージ、又はそれらの組み合わせにより処理して、吸着された二酸化炭素の相当量又は全てを放出させる、請求項19又は20に記載の方法。
- さらに、前記放出された二酸化炭素を反応させて有用な生成物を形成することを含む、請求項19〜21のいずれか一項に記載の方法。
- 二酸化炭素が、(a)水中での二酸化炭素の電気化学的還元によって、又は、(b)中間化合物としてギ酸メチルを生成させるのに十分な条件下で二酸化炭素を還元し、メタノールを形成するのに十分な条件下で中間化合物を水素により触媒的に水素化することによって、メタノールを製造するために使用される、請求項22に記載の方法。
- さらに、一酸化炭素にするのに十分な条件下で二酸化炭素を還元し、ギ酸メチルを得るのに十分な条件下で前記一酸化炭素をメタノールと反応させ、メタノールを生成させるのに十分な条件下で前記ギ酸メチルを触媒的に水素化することを含む、請求項22に記載の方法。
- さらに、ジメチルエーテルを生成させるのに十分な条件下でメタノールを脱水することを含む、請求項23又は24に記載の方法。
- さらに、エチレン及び/又はプロピレンを形成するのに十分な条件下、酸−塩基触媒又はゼオライト触媒の存在下で、ジメチルエーテルを加熱することを含む、請求項25に記載の方法。
- さらに、前記エチレン及び/又はプロピレンを、化学製品の原料として又は輸送機関用燃料として使用するための、高級オレフィン、合成炭化水素、芳香族化合物、又はそれらから生成される生成物に変換することを含む、請求項26に記載の方法。
- さらに、エタノール又はプロパノールを形成するのに十分な条件下で前記エチレン又はプロピレンを水和させることを含む、請求項27に記載の方法。
- ガス混合物から二酸化炭素を吸収するための固体吸着剤を提供するための変性ポリアミンの使用であって、前記変性ポリアミンは、アミンとアルデヒドの反応生成物であり、かつ、ナノ構造固体担体上に備えられることを特徴とする、変性ポリアミンの使用。
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JP2021003664A (ja) * | 2019-06-25 | 2021-01-14 | 株式会社豊田中央研究所 | Co2吸着材 |
WO2022202848A1 (ja) * | 2021-03-26 | 2022-09-29 | 日東電工株式会社 | 酸性ガス吸着材、酸性ガス吸着材の製造方法及び酸性ガス吸着装置 |
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KR20160085355A (ko) | 2016-07-15 |
CN106660010B (zh) | 2019-05-28 |
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AU2014357599B2 (en) | 2017-03-02 |
US20170304764A1 (en) | 2017-10-26 |
CA2931941A1 (en) | 2015-06-11 |
EP3871769A1 (en) | 2021-09-01 |
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CN106660010A (zh) | 2017-05-10 |
US9968880B2 (en) | 2018-05-15 |
WO2015084521A1 (en) | 2015-06-11 |
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