JP6321171B2 - 混合オレフィンを含有する炭化水素供給材料のオリゴマー化および水和を行うための2ステッププロセス - Google Patents
混合オレフィンを含有する炭化水素供給材料のオリゴマー化および水和を行うための2ステッププロセス Download PDFInfo
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- JP6321171B2 JP6321171B2 JP2016533580A JP2016533580A JP6321171B2 JP 6321171 B2 JP6321171 B2 JP 6321171B2 JP 2016533580 A JP2016533580 A JP 2016533580A JP 2016533580 A JP2016533580 A JP 2016533580A JP 6321171 B2 JP6321171 B2 JP 6321171B2
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- Prior art keywords
- butene
- mixed
- unreacted
- butanol
- stage process
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Description
混合ブテンには、1−ブテン、2−シス−ブテン、2−トランス−ブテン、およびイソブテンの4つの構造異性体がある。選択的に、プロピレンおよびエチレンなどの他の低オレフィンを以下に説明する供給物に存在させてもよい。
混合ブタノールには、以下の化合物、つまり1−ブタノール、2−ブタノール、tert−ブタノール、およびイソブタノールのうち少なくとも2つが含まれる。本発明の好ましい実施形態としては以下に記載する2−ブタノールおよびtert−ブタノールのみが含まれる。
ここに説明される混合ブテンのオリゴマー化には、すべてのブテン異性体のオリゴマー化、好ましくはイソブテンのオリゴマー化、より好ましくはイソブテンの二量体化が含まれる。オリゴマー留分は、二量体(イソオクテンまたはDIB)を非常に多く含み、ガソリン留分にそれ自体として添加され、非常に高品質のガソリンを提供することができる。
ブテンのブタノールへの水和反応は、その生成物に産業上重要な用途がいくつか見出されるので、商用上重要な反応である。一般的に、混合ブテンの水和は2−ブタノールおよびtert−ブタノールのみを生成するように選択されるが、他の化合物の形成も可能である。混合ブタノール、主に2−ブタノールとtert−ブタノールを、含酸素型プレミアムガソリン添加剤として使用することができる。
ここに説明されるように、混合ブテン供給材料から混合ブタノールおよびブテンオリゴマーを生成するプロセスが本発明の実施形態として提供される。さらに、ブテンから調製されるオリゴマーおよびアルコールを含有する燃料組成物を生成するプロセスも、本発明の実施形態として提供される。
(1)MTBEおよびエタノールに匹敵するRON向上性、および、より高いエネルギー含有量を有し、一方で関連する互換性や汚染の問題をなくす代替ガソリン含酸素添加剤を提供すること、
(2)本発明の生成物、つまりDIBおよび混合ブタノール、を分離することなく優れたガソリン成分として使用すること、および
(3)混合オレフィン供給材料のオリゴマー化と水和を同時に行う従来の方法よりも、混合ブタノール最終生成物内のDIB組成物をより良く調節すること、を挙げることができる。
Claims (17)
- イソブテンとn−ブテンを含有する混合ブテンを含む混合オレフィンを有する炭化水素供給材料のオリゴマー化および水和を行うための2段階プロセスであって、
前記混合ブテンをオリゴマー化させる働きをする反応条件の下で前記炭化水素供給材料を水の非存在下で第1反応器容器に導入するステップと、
前記第1反応器容器の内部にて、イソブテンをジイソブテンに選択的にオリゴマー化させるタイプのオリゴマー化触媒に、混合された前記炭化水素供給材料を接触させるステップと、
ジイソブテンを未反応のブテンから分離し、ジイソブテン流を形成するステップと、
未反応のn−ブテンおよび未反応のイソブテンを含有する前記未反応のブテンを水和させる働きをする条件の下で水の存在下で前記未反応のブテンを第2反応器容器に導入するステップと、
前記第2反応器容器の内部にて前記未反応のブテンを水和触媒に接触させて前記未反応のブテンを水和させ混合ブタノール流を形成するステップと、
前記ジイソブテン流と混合ブタノール流を組み合わせて生成物流を形成するステップと、
を備えることを特徴とする2段階プロセス。 - 前記n−ブテンが1−ブテン、2−トランス−ブテン、および2−シス−ブテンを含むことを特徴とする請求項1記載の2段階プロセス。
- 前記炭化水素供給材料を前記第1反応器容器に導入する前に、前記炭化水素供給材料が、
(a)前記炭化水素供給材料を第1の所定圧力に圧縮する第1圧縮器と、
(b)前記炭化水素供給材料の温度を第1の所定温度に調節する第1熱交換器と、
を通過することを特徴とする請求項1記載の2段階プロセス。 - 前記第1の所定圧力が5バールから100バールまでの間にあり、前記第1の所定温度が30°Cから250°Cまでの間にあることを特徴とする請求項3記載の2段階プロセス。
- 前記未反応のn−ブテンから前記ジイソブテンを分離してジイソブテン流を形成するステップに、
未反応のn−ブテンと未反応のイソブテンを含有する未反応のブテンからジイソブテンを分離するように構成された低圧分離器に、前記ジイソブテンおよび前記未反応のn−ブテンを前記第1反応器容器から導入させるステップ、
が含まれることを特徴とする請求項1記載の2段階プロセス。 - 前記未反応のブテンを前記第2反応器容器に導入する前に、前記未反応のn−ブテンを含む前記未反応のブテンに水を添加して第1水性混合物を形成し、前記第1水性混合物が、
(a)前記第1水性混合物を所定圧力に圧縮する第2圧縮器と、
(b)前記第1水性混合物の温度を所定温度に調節する第2熱交換器と、
を通過することを特徴とする請求項5記載の2段階プロセス。 - 前記所定圧力が10バールから100バールまでの間にあり、前記所定温度が80°Cから250°Cまでの間にあることを特徴とする請求項6記載の2段階プロセス。
- 前記第2反応器容器の内部にて前記未反応のブテンを水和触媒に接触させる前記ステップによって前記n−ブテンが2−ブタノールに水和され、イソブテンはすべてtert−ブタノールに水和されることを特徴とする請求項1記載の2段階プロセス。
- (a)前記第2反応器容器から前記混合ブタノール流を高圧分離器に通過させるステップであって、前記高圧分離器は未反応の混合ブテンと共に抽出された混合ブタノールを含む有機相を混合ブタノールが飽和している水相から分離するように構成されていることを特徴とするステップと、
(b)分離した前記有機相を脱ブテン塔カラムに通過させる、前記有機相を分離して未反応の混合ブテンを取り除くステップと、
(c)分離した前記水相を共沸蒸留カラムに通過させるアルコール-水共沸混合物を前記水相から蒸留させるステップと、
をさらに含むことを特徴とする請求項1記載の2段階プロセス。 - 前記脱ブテン塔から取り除かれた前記未反応の混合ブテンが再利用されて前記第1反応器容器の上流の前記炭化水素供給材料と組み合わさり、
アルコールをさらに回収するために前記アルコール-水共沸混合物が前記高圧分離器に戻り再利用されると同時に、水が前記第2反応器容器の上流部へと戻って再利用されることを特徴とする請求項9記載の2段階プロセス。 - 前記第1反応器容器内のジイソブテン生成が前記炭化水素供給材料中のイソブテンの5mol%から最大100mol%まで最大化するように、前記オリゴマー化の条件が水和条件とは独立に変更されることを特徴とする請求項1記載の2段階プロセス。
- 前記第1反応器容器でイソブテンをジイソブテンに変換させる変換率が5mol%から100mol%までの間にあることを特徴とする請求項1記載の2段階プロセス。
- 前記炭化水素供給材料が実質的にブテンからなることを特徴とする請求項1記載の2段階プロセス。
- 前記生成物流をガソリン流と組み合わせ、前記生成物流のない第2ガソリン生成物と比較してリサーチオクタン価(RON)が高くリード蒸気圧(RVP)が低いガソリン生成物を生成するステップをさらに含むことを特徴とする請求項1記載の2段階プロセス。
- 前記オリゴマー化触媒および前記水和触媒が何れも酸性触媒および置換/非置換ヘテロポリ酸のうち少なくとも1つを含むことを特徴とする請求項1記載の2段階プロセス。
- 前記酸性触媒がイオン交換樹脂を含むことを特徴とする請求項15記載の2段階プロセス。
- 前記オリゴマー化触媒と前記水和触媒が同一であることを特徴とする請求項1記載の2段階プロセス。
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PCT/US2014/069207 WO2015089005A1 (en) | 2013-12-11 | 2014-12-09 | Two-step process for oligomerizing and hydrating a hydrocarbon feed comprising mixed olefins |
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US6095667A (en) * | 1994-03-23 | 2000-08-01 | Olympus Optical Co., Ltd. | Illuminating optical system for use in projecting exposure device |
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CN110143848A (zh) | 2019-08-20 |
US9447346B2 (en) | 2016-09-20 |
EP3080061B1 (en) | 2018-01-31 |
US20150159102A1 (en) | 2015-06-11 |
JP2017502928A (ja) | 2017-01-26 |
KR102351560B1 (ko) | 2022-01-17 |
CN105934422B (zh) | 2019-06-28 |
EP3080061A1 (en) | 2016-10-19 |
CN105934422A (zh) | 2016-09-07 |
SA516371291B1 (ar) | 2019-02-28 |
US10041016B2 (en) | 2018-08-07 |
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NO3087708T3 (ja) | 2018-09-08 |
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