JP7179429B2 - 制御された異性化および分解による自己メタセシスのための多段触媒系 - Google Patents
制御された異性化および分解による自己メタセシスのための多段触媒系 Download PDFInfo
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- JP7179429B2 JP7179429B2 JP2019539269A JP2019539269A JP7179429B2 JP 7179429 B2 JP7179429 B2 JP 7179429B2 JP 2019539269 A JP2019539269 A JP 2019539269A JP 2019539269 A JP2019539269 A JP 2019539269A JP 7179429 B2 JP7179429 B2 JP 7179429B2
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Classifications
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- C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
- C07C2/02—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons
- C07C2/04—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation
- C07C2/06—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation of alkenes, i.e. acyclic hydrocarbons having only one carbon-to-carbon double bond
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Description
SiO2-Al2O3触媒を形成するために、SilysiaからのQ-10(シリカ)およびAlfa Aesarからのガンマ相酸化アルミニウム触媒担体(アルミナ)合計20グラムを、50ミリリットル(ml)の脱イオン(DI)水を含有するビーカーに加えた。DI水に添加されるシリカとアルミナの相対量は、意図される特定のSiO2-Al2O3比に応じて変動した。例えば、10%のAl2O3および90%のSiO2の場合、2グラムのアルミナおよび18グラム(g)のシリカを50mlのDI水に添加した。次いで、アルミナ-シリカ混合物を、磁気撹拌機を用いて580回転/分(rpm)で2時間(h)混合した。2時間後、溶液を一般にロタバップ(rotavap)として知られている回転蒸発器に入れた。ロタバップを171rpmで回転させ、292ミリバール(mbar)の真空および80℃で運転した。6℃の冷水をロタバップハウジングにポンプで注入して凝縮を促進した。次に合成した材料を、80℃で、一晩、乾燥オーブンに入れ、200℃で3時間、次いで575℃で5時間、焼成した。200℃から575℃への昇温速度は1分間(分)当たり3℃であった。
典型的な合成では、0%のAl2O3および100%のSiO2を使用して、実施例1に従ってSiO2担体を調製した。含浸されたタングステン前駆体を有するSiO2担体を合成するために、実施例1由来のSiO2担体の2gを80mlビーカーに入れた。0.235gのメタタングステン酸アンモニウム水和物[(NH4)6H2W12O40・xH2O]99.99%(極微量の金属に基づいて)を、2mlのDI水と混合した。次いで、メタタングステン酸アンモニウム水和物を、2gのSiO2担体に滴加した。典型的には、SiO2担体上に5滴配置した。ガラス棒を使用して担体と完全に混合した。続いて、メタタングステン酸アンモニウム水和物と混合されたSiO2担体を80℃で一晩乾燥オーブンに入れた。メタタングステン酸アンモニウム水和物と混合された乾燥SiO2担体を、250℃に達するまで毎分1℃、550℃に達するまで毎分3℃の上昇速度で、250℃で2時間、続いて550℃で8時間、焼成した。これによりメソポーラスシリカ触媒が形成される。
典型的な合成では、4.26gの臭化テトラプロピルアンモニウム(TPA)および0.7407gのフッ化アンモニウムを72mlの水に溶解し、15分間十分に撹拌した。次いで、12gのヒュームドシリカを添加し、均質になるまで十分に撹拌した。得られたゲルをオートクレーブし、200℃で2日間保持した。ゲルのモル組成は、1 SiO2:0.08(TPA)Br:0.10 NH4F:20 H2Oであった。得られた固体生成物を水で洗浄し、80℃で一晩乾燥させた。空気中で毎分3℃の傾斜速度で5時間、750℃で焼成することによりテンプレートを除去した。
典型的な合成では、8.52gのTPAおよび1.48gのフッ化アンモニウムを72mlの水に溶解し、20分間十分に撹拌した。激しく撹拌しながら、24gのヒュームドシリカおよび0.15gの硝酸アルミニウムを同時にTPABr溶液に徐々に添加した。溶液がゲル化したら、そのゲルを、均質になるまで約10分間、激しく混合した。得られたゲルを、オートクレーブし、200℃で2日間保持した。2日後にオートクレーブを冷水中で30分間急冷した。ゲルのモル組成は、1 SiO2:0.0005 Al2O3:0.08(TPA)Br:0.10 NH4F:20 H2Oであった。得られた固体生成物を水で洗浄し、80℃で一晩乾燥させた。毎分4℃で昇温させて750℃で6時間空気中で焼成することによりテンプレートを取り出した。
実施例1~4由来の調製された触媒を、それらの活性およびブテンへの選択性について、固定床連続流通反応器(ID 0.25 in、Autoclave Engineers Ltd.)において、大気圧下で試験した。一定量の触媒サンプル、各触媒タイプ1ml(合計3ml)を反応器の底部に炭化ケイ素と共に反応器管に充填した。炭化ケイ素は、不活性であり、反応化学に全く寄与しない。各触媒タイプおよび炭化ケイ素は、反応器の頂部および底部に追加の石英ウール層を有する石英ウールによって分離された。触媒をN2下で550℃において、25標準立方センチメートル/分(sccm)の流量で1時間、前処理し、活性化させた。450℃、500℃、および550℃の3つの温度、900h-1のGHSV(気体時空間速度)、および大気圧で、希釈剤(25ml/分)としての窒素と一緒に、供給原料として2-ブテン(5ミリリットル/分(ml/分))を使用して、全ての反応を行った。その温度を3.5時間維持した。反応生成物の定量分析を、HP-Al/KCL(50m×0.53mm×15ミクロン)カラムを備えた水素炎イオン化検出器(FID)を有するAgilentガスクロマトグラフ(Agilent GC-7890B)を使用してオンラインで行った。
以下、本発明の好ましい実施形態を項分け記載する。
実施形態1
プロピレンを製造するためのプロセスであって、
2-ブテンを1-ブテンに異性化するために、前記2-ブテンを含む炭化水素流を異性化触媒ゾーンに導入することであって、前記異性化触媒ゾーンが1:99~20:80のアルミナ対シリカの重量比を有するシリカ-アルミナ触媒を含む、導入することと、
前記2-ブテンおよび1-ブテンを、プロピレンとC 4 -C 6 オレフィンとを含むメタセシス生成物流に交差メタセシスするために、前記2-ブテンおよび1-ブテンをメタセシス触媒ゾーンに移動することであって、前記メタセシス触媒が金属酸化物を含浸させたメソポーラスシリカ触媒担体を含む、移動することと、
プロピレンを製造するために、触媒分解ゾーンで前記メタセシス生成物流を分解することであって、前記触媒分解ゾーンがモルデナイト骨格反転(MFI)構造化シリカ触媒を含む、分解することと、を含む、プロセス。
実施形態2
前記シリカ-アルミナ触媒が、200m 2 /g~600m 2 /gの表面積を含む、実施形態1に記載のプロセス。
実施形態3
前記シリカ-アルミナ触媒が、少なくとも0.60cm 3 /gの細孔容積を有する、実施形態1に記載のプロセス。
実施形態4
前記シリカ-アルミナ触媒が、1:99~10:90のアルミナ対シリカ重量比を備える、実施形態1に記載のプロセス。
実施形態5
前記メソポーラスシリカ触媒の前記金属酸化物が、モリブデン、レニウム、タングステンのうちの1つ以上の酸化物、またはそれらの組み合わせを含む、実施形態1に記載のプロセス。
実施形態6
前記メソポーラスシリカ触媒の前記金属酸化物が、酸化タングステン(WO 3 )である、実施形態1に記載のプロセス。
実施形態7
前記メソポーラスシリカが、少なくとも0.60cm 3 /gの細孔容積を有する、実施形態1に記載のプロセス。
実施形態8
前記MFI構造化シリカ触媒が、0.001mmol/g~0.3mmol/gの全酸度を含む、実施形態1に記載のプロセス。
実施形態9
炭化水素供給原料が、流動接触分解装置またはエチレン分解装置からのラフィネート2の流れである実施形態1に記載のプロセス。
実施形態10
2-ブテンを含む炭化水素流からプロピレンを製造するための多段触媒系であって、前記多段触媒系が、異性化触媒ゾーンと、前記異性化ゾーンの下流にあるメタセシス触媒ゾーンと、前記メタセシス触媒ゾーンの下流にある分解触媒ゾーンと、を備え、
前記異性化触媒ゾーンが、1:99~20:80のアルミナ対シリカの重量比を有するシリカ-アルミナ触媒を含み、シリカ-アルミナ触媒ゾーンが前記2-ブテンを1-ブテンに異性化し、
前記メタセシス触媒ゾーンが、メソポーラスシリカ触媒を形成するために金属酸化物を含浸させたメソポーラスシリカ触媒担体を含み、前記メソポーラスシリカ触媒ゾーンが、前記2-ブテンおよび1-ブテンを、プロピレンとC 4 -C 6 オレフィンとを含むメタセシス生成物流に交差メタセシスし、
前記分解触媒ゾーンが、モルデナイト骨格反転(MFI)構造化シリカ触媒を含み、前記分解触媒ゾーンが、前記メタセシス生成物流を分解してプロピレンを製造する、多段触媒系。
実施形態11
前記異性化触媒ゾーン、前記メタセシス触媒ゾーン、および前記分解触媒ゾーンが、1つの反応器中に配置される、実施形態10に記載の多段触媒系。
実施形態12
前記異性化触媒ゾーンが、第1の反応器上に配置され、前記メタセシス触媒ゾーンが、前記第1の反応器の下流にある第2の反応器中に配置され、前記分解触媒ゾーンが、前記第2の反応器の下流にある第3の反応器中に配置される、実施形態10に記載の多段触媒系。
実施形態13
前記異性化触媒ゾーンが、第1の反応器上に配置され、前記分解触媒ゾーンが、前記第1の反応器の下流にある第2の反応器中に配置され、前記メタセシス触媒ゾーンが、前記異性化触媒ゾーンの下流にある前記第1の反応器中または前記分解触媒ゾーンの上流にある前記第2の反応器中に配置される、実施形態10に記載の多段触媒系。
実施形態14
前記シリカ-アルミナ触媒が、200m 2 /g~600m 2 /gの表面積を含む、実施形態10に記載の多段触媒系。
実施形態15
前記シリカ-アルミナ触媒が、少なくとも0.60cm 2 /gの細孔容積を有する、実施形態10に記載の多段触媒系。
実施形態16
前記シリカ-アルミナ触媒が、1:99~10:90のアルミナ対シリカ重量比を備える、実施形態10に記載の多段触媒系。
実施形態17
前記メソポーラスシリカ触媒の前記金属酸化物が、モリブデン、レニウム、タングステン、またはそれらの組み合わせのうちの1つ以上の酸化物を含む、実施形態10に記載の多段触媒系。
実施形態18
前記メソポーラスシリカ触媒の前記金属酸化物が、酸化タングステン(WO 3 )である、実施形態10に記載の多段触媒系。
実施形態19
前記メソポーラスシリカ触媒が、少なくとも0.60cm 3 /gの細孔容積を有する、実施形態10に記載の多段触媒系。
実施形態20
前記MFI構造化シリカ触媒が、0.001mmol/g~0.3mmol/gの全酸度を含む、実施形態10に記載の多段触媒系。
Claims (15)
- プロピレンを製造する方法であって、
2-ブテンを含む炭化水素流を、1:99~20:80のアルミナ対シリカの重量比を有するシリカ-アルミナ触媒を含む異性化触媒ゾーンに導入して、前記2-ブテンを1-ブテンに異性化する工程と、
メタセシス触媒は金属酸化物を含浸させたメソポーラスシリカ触媒担体を含み、前記2-ブテンおよび前記1-ブテンを前記メタセシス触媒が含まれるゾーンに移動させて、プロピレンとC4-C6オレフィンを含むメタセシス生成物流へと交差メタセシスする工程と、
モルデナイト骨格反転(MFI)構造化シリカ触媒を含む触媒分解ゾーンで前記メタセシス生成物流を分解して、プロピレンを製造する工程と、
を含む方法。 - 前記シリカ-アルミナ触媒が、200m2/g~600m2/gの表面積を含む、請求項1に記載の方法。
- 前記シリカ-アルミナ触媒が、少なくとも0.60cm3/gの細孔容積を有する、請求項1または2に記載の方法。
- 前記シリカ-アルミナ触媒が、1:99~10:90のアルミナ対シリカ重量比を備える、請求項1~3のいずれかに記載の方法。
- 前記メソポーラスシリカ触媒の前記金属酸化物が、モリブデン、レニウム、タングステンのうちの1つ以上の酸化物、またはそれらの組み合わせを含む、請求項1~4のいずれかに記載の方法。
- 前記メソポーラスシリカ触媒の前記金属酸化物が、酸化タングステン(WO3)である、請求項1~5のいずれかに記載の方法。
- 前記メソポーラスシリカが、少なくとも0.60cm3/gの細孔容積を有する、請求項1~6のいずれかに記載の方法。
- 前記MFI構造化シリカ触媒が、0.001mmol/g~0.3mmol/gの全酸度を含む、請求項1~7のいずれかに記載の方法。
- 2-ブテンを含む炭化水素流からプロピレンを製造するための多段触媒系であって、前記多段触媒系が、異性化触媒ゾーンと、前記異性化ゾーンの下流にあるメタセシス触媒ゾーンと、前記メタセシス触媒ゾーンの下流にある分解触媒ゾーンと、を備え、
前記異性化触媒ゾーンが、1:99~20:80のアルミナ対シリカの重量比を有するシリカ-アルミナ触媒を含み、シリカ-アルミナ触媒ゾーンが前記2-ブテンを1-ブテンに異性化し、
前記メタセシス触媒ゾーンが、メソポーラスシリカ触媒を形成するために金属酸化物を含浸させたメソポーラスシリカ触媒担体を含み、前記メソポーラスシリカ触媒ゾーンが、前記2-ブテンおよび1-ブテンを、プロピレンとC4-C6オレフィンとを含むメタセシス生成物流に交差メタセシスし、
前記分解触媒ゾーンが、モルデナイト骨格反転(MFI)構造化シリカ触媒を含み、前記分解触媒ゾーンが、前記メタセシス生成物流を分解してプロピレンを製造する、多段触媒系。 - 前記異性化触媒ゾーン、前記メタセシス触媒ゾーン、および前記分解触媒ゾーンが、1つの反応器中に配置される、請求項9に記載の多段触媒系。
- 前記異性化触媒ゾーンが、第1の反応器上に配置され、前記メタセシス触媒ゾーンが、前記第1の反応器の下流にある第2の反応器中に配置され、前記分解触媒ゾーンが、前記第2の反応器の下流にある第3の反応器中に配置される、請求項9に記載の多段触媒系。
- 前記異性化触媒ゾーンが、第1の反応器内に配置され、前記分解触媒ゾーンが、前記第1の反応器の下流にある第2の反応器中に配置され、前記メタセシス触媒ゾーンが、前記異性化触媒ゾーンの下流にある前記第1の反応器中または前記分解触媒ゾーンの上流にある前記第2の反応器中に配置される、請求項9に記載の多段触媒系。
- 前記シリカ-アルミナ触媒が、1:99~10:90のアルミナ対シリカ重量比を備える、請求項9~12のいずれかに記載の多段触媒系。
- 前記メソポーラスシリカ触媒の前記金属酸化物が、モリブデン、レニウム、タングステン、またはそれらの組み合わせのうちの1つ以上の酸化物を含む、請求項9~13のいずれかに記載の多段触媒系。
- 前記メソポーラスシリカ触媒の前記金属酸化物が、酸化タングステン(WO3)である、請求項9~14のいずれかに記載の多段触媒系。
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WO2018136707A1 (en) | 2018-07-26 |
US20180208524A1 (en) | 2018-07-26 |
EP3571178B1 (en) | 2021-01-13 |
CN110267932B (zh) | 2022-03-25 |
CN110267932A (zh) | 2019-09-20 |
US10550048B2 (en) | 2020-02-04 |
US11242297B2 (en) | 2022-02-08 |
JP2020505370A (ja) | 2020-02-20 |
EP3571178A1 (en) | 2019-11-27 |
SG11201906566UA (en) | 2019-08-27 |
KR20190104064A (ko) | 2019-09-05 |
US20200131099A1 (en) | 2020-04-30 |
SA519402263B1 (ar) | 2022-04-21 |
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