JP2008543719A - 電気化学的な改質及び電解質の再生を使用する水素の生産 - Google Patents
電気化学的な改質及び電解質の再生を使用する水素の生産 Download PDFInfo
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Abstract
Description
1.水蒸気改質よりも高い効率;
2.単純化された生産物のクリーンアップ;
3.圧縮器についての要望を除去する;及び
4.連続的な、十分に統合された工程を提供する
:を含む。
CH3OH(液体) + 2KOH 3H2 + K2CO3 (5)
及び(6):
CH3OH(液体) + 2H2O + K2CO3 3H2 + 2KHCO3 (6)
に例示される。
CO2 + K2CO3 + H2O 2KHCO3 (7)
を介して溶解させられた重炭酸塩を形成するために炭酸塩及び水と反応する。
実施例1
例2
Pt/Cの触媒を使用する電解質の再生の概要
例3
Claims (60)
- 少なくとも一つの導電性の触媒及び水性のアルカリ性の炭酸塩の電解質を含む混合物の存在下で液相において少なくとも一つの被酸化性の有機物質を接触させることを含む、水素ガスを生産するためのプロセスにおいて、前記電解質の反応によって生産された少なくとも一つの重炭酸塩の組成物は、再生されると共に、前記少なくとも一つの被酸化性の有機物質は、酸素化された炭化水素を含むことを特徴とする、プロセス。
- 前記酸素化された炭化水素は、糖類、セルロース、澱粉、糖質、アルコール類、エーテル類、カルボン酸、アルデヒド、ケトン、バイオマス、及びそれらの混合物からなる群より選択されることを特徴とする、請求項1に記載のプロセス。
- 前記糖類は、単糖類、二糖類、オリゴ糖類、多糖類、及びそれらの混合物からなる群より選択されることを特徴とする、請求項2に記載のプロセス。
- 前記アルコール類は、C1−C6のアルコール類及びそれらの混合物からなる群より選択されることを特徴とする、請求項2に記載のプロセス。
- 前記アルコール類は、メタノール、エタノール、及びそれらの混合物より選択されることを特徴とする、請求項4に記載のプロセス。
- 前記アルコール類は、メタノールであることを特徴とする、請求項5に記載のプロセス。
- 前記エーテル類は、ジメチルエーテル、メチル=エチル=エーテル、ジエチルエーテル、及びそれらの混合物より選択されることを特徴とする、請求項2に記載のプロセス。
- 前記エーテル類は、ジメチルエーテルであることを特徴とする、請求項7に記載のプロセス。
- 前記酸素化された炭化水素は、メタノール及びジメチルエーテルの混合物であることを特徴とする、請求項2に記載のプロセス。
- 前記アルカリ性の電解質は、金属の水酸化物、炭酸塩、重炭酸塩、及びそれらの混合物からなる群より選択されることを特徴とする、請求項1に記載のプロセス。
- 前記触媒は、元素の周期表のVIII族の遷移金属より選択された少なくとも一つの金属を含む、化合物、錯体、合金、及びそれらの混合物からなる群より選択されることを特徴とする、請求項1に記載のプロセス。
- 前記触媒は、IB族、IIB族、VIIB族の金属、及びそれらの混合物より選択された少なくとも一つの金属をさらに含むことを特徴とする、請求項11に記載のプロセス。
- 前記触媒は、白金、ニッケル、パラジウム、ロジウム、イリジウム、コバルト、ルテニウム、鉄、及びそれらの混合物からなる群より選択されることを特徴とする、請求項11に記載のプロセス。
- 前記触媒は、銅、亜鉛、及び銀からなる群より選択された金属をさらに含むことを特徴とする、請求項12に記載のプロセス。
- 前記触媒は、金属、金属の酸化物、シリカ、アルミナ、シリカ−アルミナ、ジルコニア、チタニア、セリア、炭素、炭化ケイ素、窒化ケイ素、ホウ化ケイ素、及びそれらの混合物からなる群より選択された導電性の又は非導電性の材料の上に又は中に支持されることを特徴とする、請求項11に記載のプロセス。
- 前記支持体は、ビード、粉末、コーティング、押し出しされた基材、モノリス、及びそれらの混合物からなる群より選択された形態にあることを特徴とする、請求項15に記載のプロセス。
- 前記被酸化性の有機物質及び前記アルカリ性の電解質は、水の存在下で反応させられることを特徴とする、請求項1に記載のプロセス。
- 前記アルカリ性の電解質は、アルカリ金属又はアルカリ土類金属:水酸化物、炭酸塩、重炭酸塩、及びそれらの混合物からなる群より選択されることを特徴とする、請求項10に記載のプロセス。
- 前記アルカリ性の電解質の金属は、ナトリウム、リチウム、カリウム、セシウム、ルビジウム、及びそれらの混合物からなる群より選択されることを特徴とする、請求項18に記載のプロセス。
- 前記接触させられた電解質は、実質的に、少なくとも一つの重炭酸塩の化合物の形態にあると共に、再生は、水蒸気と前記少なくとも一つの重炭酸塩の化合物をさらに接触させることによって達成されることを特徴とする、請求項1に記載のプロセス。
- 前記反応のステップは、約150℃及び約350℃の温度で起こることを特徴とする、請求項1に記載のプロセス。
- 前記反応のステップは、約200℃及び250℃の温度で起こることを特徴とする、請求項1に記載のプロセス。
- 反応の副産物から前記接触させるステップの間に形成された水素を実質的に分離するというステップをさらに含む、請求項1に記載のプロセス。
- 前記分離は、吸収ステップであると共に、前記副産物は、CO2を含むと共に、前記吸収は、約100℃から約350℃までの温度で、少なくとも一つのアルカリ金属の炭酸塩、少なくとも一つのアルカリ土類金属の炭酸塩、及びそれらの混合物からなる群より選択された化合物の吸収する量を含む水溶液と前記水素及びCO2を接触させることを含むと共に、それによって前記CO2を反応的に吸収すると共にさらなる副産物として金属の重炭酸塩を生産することを特徴とする、請求項23に記載のプロセス。
- 前記吸収のステップは、アミン、ホウ酸塩、砒酸塩、グリシン、ピペラジン、及びそれらの混合物からなる群より選択された少なくとも一つの促進剤のさらなる使用を含むことを特徴とする、請求項24に記載のプロセス。
- 約1気圧から約1000気圧までの圧力で行われる、請求項1に記載のプロセス。
- 前記圧力は、約10気圧から約100気圧までであることを特徴とする、請求項26に記載のプロセス。
- 前記電解質は、水蒸気と前記電解質の組成物を接触させることによって反応器において再生されることを特徴とすると共に、前記混合物は、アミン、ホウ酸塩、砒酸塩、グリシン、ピペラジン、及びそれらの混合物からなる群より選択された少なくとも一つの促進剤をさらに含むことを特徴とする請求項1に記載のプロセス。
- 前記金属は、アルカリ金属及びアルカリ土類金属からなる群より選択されることを特徴とする請求項28に記載のプロセス。
- 前記金属は、ナトリウム、リチウム、カリウム、セシウム、及びルビジウムからなる群より選択されることを特徴とする、請求項29に記載のプロセス。
- 前記再生は、約0.3気圧から約200気圧までの圧力で行われることを特徴とする請求項28に記載のプロセス。
- 前記金属の重炭酸塩を含有する組成物は、前記金属の炭酸塩を再生するために、反応器において水蒸気と接触させられることを特徴とする、請求項1に記載のプロセス。
- 前記吸収のステップの前記金属の重炭酸塩を含有する組成物は、前記金属の炭酸塩を再生するために、反応器において水蒸気と接触させられることを特徴とする、請求項24に記載のプロセス。
- 前記吸収ステップ及び前記水素の生産のステップの両方の前記金属の重炭酸塩を含有する組成物は、前記金属の炭酸塩を再生するために、反応器において水蒸気と接触させられることを特徴とする、請求項24に記載のプロセス。
- 導電性の触媒及びアルカリ性の電解質の存在下において液相において少なくとも一つの被酸化性の有機物質を接触させることを含む水素ガスを生産するためのプロセスにおいて、
(A)水素ガスは、上部及び下部を有する反応器において発生させられると共に、前記少なくとも一つの被酸化性の有機物質は、前記上部と前記下部との間における実質的に中途のある点で前記反応器へと導入される;且つ
(B)少なくとも一つの金属の炭酸塩を含むアルカリ性の電解質の溶液は、前記金属の炭酸塩の溶液及び前記水素ガスが、互いに対して実質的に向流式に流動するように、実質的に前記反応器の上部におけるある点で前記反応器へと導入されると共に、それによって少なくとも一つの金属の重炭酸塩の組成物の生産に帰着する;
(C)前記少なくとも一つの金属の重炭酸塩の組成物は、再生されると共に、前記少なくとも一つの被酸化性の有機物質は、酸素化された炭化水素を含む
:ことを特徴とするプロセス。 - 前記金属の重炭酸塩を含むプロセス流れは、前記の反応器における圧力に対して比較された、圧力が低減されると共に、それが水蒸気と接触させられるところの第二の反応器の中へと導入されると共に、それによって二酸化炭素を生産すると共に前記アルカリ性の電解質を実質的に再生することを特徴とする、請求項35に記載のプロセス。
- 前記再生されたアルカリ性の電解質は、前記水素を発生させる反応器へと導入されることを特徴とする請求項36に記載のプロセス。
- 前記酸素化された炭化水素は、糖類、セルロース、澱粉、糖質、アルコール類、エーテル類、カルボン酸、アルデヒド、ケトン、バイオマス、及びそれらの混合物からなる群より選択されることを特徴とする、請求項35に記載のプロセス。
- 前記糖類は、単糖類、二糖類、オリゴ糖類、多糖類、及びそれらの混合物からなる群より選択されることを特徴とする、請求項38に記載のプロセス。
- 前記アルコール類は、C1−C6のアルコール類及びそれらの混合物からなる群より選択されることを特徴とする、請求項38に記載のプロセス。
- 前記アルコール類は、メタノール、エタノール、及びそれらの混合物より選択されることを特徴とする、請求項40に記載のプロセス。
- 前記アルコール類は、メタノールであることを特徴とする、請求項41に記載のプロセス。
- 前記エーテル類は、ジメチルエーテル、メチル=エチル=エーテル、ジエチルエーテル、及びそれらの混合物より選択されることを特徴とする、請求項38に記載のプロセス。
- 前記エーテル類は、ジメチルエーテルであることを特徴とする、請求項43に記載のプロセス。
- 前記酸素化された炭化水素は、メタノール及びジメチルエーテルの混合物であることを特徴とする、請求項38に記載のプロセス。
- 前記アルカリ性の電解質は、金属の水酸化物、炭酸塩、重炭酸塩、及びそれらの混合物からなる群より選択されることを特徴とする、請求項35に記載のプロセス。
- 前記触媒は、元素の周期表のVIII族の遷移金属より選択された金属を含む、化合物、錯体、合金、及びそれらの混合物からなる群より選択されることを特徴とする、請求項35に記載のプロセス。
- 前記触媒は、IB族、IIB族、VIIB族の金属、及びそれらの混合物より選択された少なくとも一つの金属をさらに含むことを特徴とする、請求項47に記載のプロセス。
- 前記触媒は、白金、ニッケル、パラジウム、ロジウム、イリジウム、コバルト、ルテニウム、鉄、及びそれらの混合物からなる群より選択されることを特徴とする、請求項47に記載のプロセス。
- 前記触媒は、銅、亜鉛、及びレニウムからなる群より選択された金属をさらに含むことを特徴とする、請求項48に記載のプロセス。
- 前記触媒は、金属、金属の酸化物、シリカ、アルミナ、シリカ−アルミナ、ジルコニア、チタニア、セリア、炭素、炭化ケイ素、窒化ケイ素、ホウ化ケイ素、及びそれらの混合物からなる群より選択された導電性の又は非導電性の材料の上に又は中に支持されることを特徴とする、請求項47に記載のプロセス。
- 前記支持体は、ビード、粉末、コーティング、押し出しされた基材、モノリス、及びそれらの混合物からなる群より選択された形態にあることを特徴とする、請求項51に記載のプロセス。
- 前記被酸化性の有機物質及び前記アルカリ性の電解質は、水の存在下で反応させられることを特徴とする、請求項35に記載のプロセス。
- 前記アルカリ性の電解質は、アルカリ金属又はアルカリ土類金属:水酸化物、炭酸塩、重炭酸塩、及びそれらの混合物からなる群より選択されることを特徴とする、請求項46に記載のプロセス。
- 前記アルカリ性の電解質の金属は、ナトリウム、リチウム、カリウム、セシウム、ルビジウム、及びそれらの混合物からなる群より選択されることを特徴とする、請求項54に記載のプロセス。
- 再生は、約85℃から約200℃までの温度で行われることを特徴とする、請求項1に記載のプロセス。
- 前記温度は、約150℃から約170℃までであることを特徴とする、請求項56に記載のプロセス。
- 前記温度は、約85℃から約100℃までであることを特徴とする、請求項56に記載のプロセス。
- 連続的に行われた請求項1に記載のプロセス。
- 連続的に行われた請求項35に記載のプロセス。
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6034550B2 (ja) * | 2009-01-20 | 2016-11-30 | 株式会社Ti | 水素発生触媒、水素発生方法、水素発生装置 |
JP2019157172A (ja) * | 2018-03-09 | 2019-09-19 | 株式会社Soken | 水素生成装置 |
JP7158672B2 (ja) | 2018-03-09 | 2022-10-24 | 株式会社Soken | 水素生成装置 |
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