JP7009387B2 - 流体流から酸性ガスを除去するための吸収剤の製造用の予備混合物 - Google Patents
流体流から酸性ガスを除去するための吸収剤の製造用の予備混合物 Download PDFInfo
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Description
a)少なくとも第三級アミン及び/又は立体障害のある第二級アミン;
b)a)中のプロトン化可能な窒素原子に基づいた中和当量として計算して、少なくとも30%の量のジカルボン酸であって、20℃の温度での水への溶解度が水100g当たりジカルボン酸15g以下である前記ジカルボン酸;並びに
c)20~80質量%の水
を含む予備混合物によって達成される。
1.第三級アルカノールアミン、例えば、
ビス(2-ヒドロキシエチル)メチルアミン(メチルジエタノールアミン、MDEA)、トリス(2-ヒドロキシエチル)アミン(トリエタノールアミン、TEA)、トリブタノールアミン、2-ジエチルアミノエタノール(ジエチルエタノールアミン、DEEA)、2-ジメチルアミノエタノール(ジメチルエタノールアミン、DMEA)、3-ジメチルアミノ-1-プロパノール(N,N-ジメチルプロパノールアミン)、3-ジエチルアミノ-1-プロパノール、2-ジイソプロピルアミノエタノール(DIEA)、N,N-ビス(2-ヒドロキシプロピル)メチルアミン(メチルジイソプロパノールアミン、MDIPA);
2.第三級アミノエーテル、例えば、
3-メトキシプロピルジメチルアミン;
3.第三級ポリアミン、例えば、ビス-第三級ジアミン、例えば、
N,N,N’,N’-テトラメチルエチレンジアミン、N,N-ジエチル-N’,N’-ジメチルエチレンジアミン、N,N,N’,N’-テトラエチルエチレンジアミン、N,N,N’,N’-テトラメチル-1,3-プロパンジアミン(TMPDA)、N,N,N’,N’-テトラエチル-1,3-プロパンジアミン(TEPDA)、N,N,N’,N’-テトラメチル-1,6-ヘキサンジアミン、N,N-ジメチル-N’,N’-ジエチルエチレンジアミン(DMDEEDA)、1-ジメチルアミノ-2-ジメチルアミノエトキシエタン(ビス[2-(ジメチルアミノ)エチル]エーテル)、1,4-ジアザビシクロ[2.2.2]オクタン(TEDA)、テトラメチル-1,6-ヘキサンジアミン;
及びそれらの混合物
を含む。
1.立体障害のある第二級アルカノールアミン、例えば
2-(2-tert-ブチルアミノエトキシ)エタノール(TBAEE)、2-(2-tert-ブチルアミノ)プロポキシエタノール、2-(2-tert-アミルアミノエトキシ)エタノール、2-(2-(1-メチル-1-エチルプロピルアミノ)エトキシ)エタノール、2-(tert-ブチルアミノ)エタノール、2-tert-ブチルアミノ-1-プロパノール、3-tert-ブチルアミノ-1-プロパノール、3-tert-ブチルアミノ-1-ブタノール、3-アザ-2,2-ジメチルヘキサン-1,6-ジオール;2-(2-イソプロピルアミノエトキシ)エタノール、2-(2-イソプロピルアミノ)プロポキシエタノール、2-(イソプロピルアミノ)エタノール、2-イソプロピルアミノ-1-プロパノール、3-イソプロピルアミノ-1-プロパノール、及び3-イソプロピルアミノ-1-ブタノール;
2.立体障害のあるアミノエーテル、例えば
1,2-ビス(tert-ブチルアミノエトキシ)エタン、ビス(tert-ブチルアミノエチル)エーテル、2-(2-(2-(tert-ブチルアミノ)エトキシ)エトキシ)エトキシメチルエーテル(MEEETB);
及びそれらの混合物
を含む。
SA コハク酸
MDEA メチルジエタノールアミン
TBAEE 2(2-tert-ブチルアミノエトキシ)エタノール
本参照例は、コハク酸/アジピン酸の様々なアミンへの溶解度を23.5℃で分析した。
本実施例は、コハク酸/アジピン酸のアミン水溶液への溶解度を23.5℃で分析した。
本参照例は、様々なカルボン酸の存在下におけるMDEAの安定性を分析した。
Claims (11)
- 流体流から酸性ガスを除去するための吸収剤の製造用の予備混合物であって、
a)ビス(2-ヒドロキシエチル)メチルアミン(メチルジエタノールアミン、MDEA)、トリブタノールアミン、2-ジエチルアミノエタノール(ジエチルエタノールアミン、DEEA)、2-ジメチルアミノエタノール(ジメチルエタノールアミン、DMEA)、3-ジメチルアミノ-1-プロパノール(N,N-ジメチルプロパノールアミン)、3-ジエチルアミノ-1-プロパノール、2-ジイソプロピルアミノエタノール(DIEA)及びN,N-ビス(2-ヒドロキシプロピル)メチルアミン(メチルジイソプロパノールアミン、MDIPA)から選ばれる少なくとも1種の第三級アミン及び/又は立体障害のある第二級アミン;
b)a)中のプロトン化可能な窒素原子に基づいた中和当量として計算して、少なくとも30%の量のジカルボン酸であって、20℃の温度での水への溶解度が水100g当たりジカルボン酸15g以下である前記ジカルボン酸;並びに
c)20~80質量%の水
を含む予備混合物。 - 前記b)の量が、a)中のプロトン化可能な窒素原子に基づいた中和当量として計算して30%~400%である、請求項1に記載の予備混合物。
- 前記第三級アミンがアルカノールアミンである、請求項1又は2に記載の予備混合物。
- アミンa)が、立体障害のある第二級アミンである、請求項1又は2に記載の予備混合物。
- 前記立体障害のある第二級アミンがアルカノールアミノエーテルである、請求項1から4のいずれか一項に記載の予備混合物。
- 前記ジカルボン酸b)がコハク酸及びアジピン酸から選択される、請求項1から5のいずれか一項に記載の予備混合物。
- 所定の予備混合物をアミン及び任意に水と混合することを含む流体流から酸性ガスを除去するための吸収剤を製造する方法であって、
前記所定の予備混合物は、
a)少なくとも第三級アミン及び/又は立体障害のある第二級アミン;
b)a)中のプロトン化可能な窒素原子に基づいた中和当量として計算して、少なくとも30%の量のジカルボン酸であって、20℃の温度での水への溶解度が水100g当たりジカルボン酸15g以下である前記ジカルボン酸;並びに
c)20~80質量%の水
を含むものであり、
前記予備混合物中の前記ジカルボン酸の量が前記アミンのプロトン化可能な窒素原子に基づいた中和当量として計算して前記吸収剤中よりも多い吸収剤の製造方法。 - 前記ジカルボン酸が、がコハク酸及びアジピン酸から選択される、請求項7に記載の方法。
- 前記予備混合物が、請求項1~5の何れか1項に記載の予備混合物である、請求項7又は8に記載の方法。
- 前記吸収剤が前記ジカルボン酸を、前記アミンのプロトン化可能な窒素原子に基づいた中和当量として計算して、0.5%~15%の量で含む請求項7~9の何れか1項に記載の方法。
- 前記吸収剤が、立体障害のない第一級アミン及び立体障害のない第二級アミンを含まない請求項7~10の何れか1項に記載の方法。
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JP2009537318A (ja) | 2006-05-19 | 2009-10-29 | ビーエーエスエフ ソシエタス・ヨーロピア | 流体流から酸性ガスを除去するための吸着剤を製造するための前混合物 |
JP2012506306A (ja) | 2008-10-24 | 2012-03-15 | ロンザ インコーポレイテッド | 低減された腐食作用を有するアルカノールアミン系二酸化炭素吸収溶液 |
JP2015527189A (ja) | 2012-06-29 | 2015-09-17 | ダウ グローバル テクノロジーズ エルエルシー | ガス混合物からh2sを除去する、水性アルカノールアミン溶液及び工程 |
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WO2017182289A1 (de) | 2017-10-26 |
EP3445474B1 (de) | 2020-03-18 |
CA3020219A1 (en) | 2017-10-26 |
CN109069983B (zh) | 2021-12-24 |
US11045759B2 (en) | 2021-06-29 |
EA039814B1 (ru) | 2022-03-16 |
JP2019513553A (ja) | 2019-05-30 |
EA201892359A1 (ru) | 2019-03-29 |
CN109069983A (zh) | 2018-12-21 |
EP3445474A1 (de) | 2019-02-27 |
US20190126193A1 (en) | 2019-05-02 |
BR112018071033A2 (pt) | 2019-02-12 |
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