JP5706335B2 - アルキンの対応するアルケンへの選択的接触水素化 - Google Patents
アルキンの対応するアルケンへの選択的接触水素化 Download PDFInfo
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- JP5706335B2 JP5706335B2 JP2011541190A JP2011541190A JP5706335B2 JP 5706335 B2 JP5706335 B2 JP 5706335B2 JP 2011541190 A JP2011541190 A JP 2011541190A JP 2011541190 A JP2011541190 A JP 2011541190A JP 5706335 B2 JP5706335 B2 JP 5706335B2
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- catalyst
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- boron
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- 150000001345 alkine derivatives Chemical class 0.000 title claims description 27
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- 238000005984 hydrogenation reaction Methods 0.000 claims description 22
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- GPNDARIEYHPYAY-UHFFFAOYSA-N palladium(ii) nitrate Chemical compound [Pd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O GPNDARIEYHPYAY-UHFFFAOYSA-N 0.000 description 3
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- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
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- 238000005229 chemical vapour deposition Methods 0.000 description 1
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- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
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- 239000003701 inert diluent Substances 0.000 description 1
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- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
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- 238000006384 oligomerization reaction Methods 0.000 description 1
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- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
当業者に公知のように、ある量のTiO2を水と混合して、ゲルまたは濃い懸濁液を形成し、次いで、これに8時間に亘り80℃でホウ酸(H3BO3)を含浸させ、その後、120℃で乾燥させ、約250℃でか焼して、B2O3を形成することによって、ゲルの形態にあるTiO2担体を調製した。得られた硝酸パラジウムに1%の硝酸パラジウム水溶液を80℃で含浸させた。含浸済み担体を12時間に亘り約120℃で乾燥させて、水を除去し、粉砕して、篩い分けして、40〜60メッシュの粒径を得た。このようにして得られた触媒は、0.5質量%のPdおよび1質量%のBを含有していた。内径が10mmの固定床式ガラス製反応装置に充填する際に、0.2gの触媒粒子を、触媒と同じ範囲の粒径を有する、10.5gのSiO2と混合した。次いで、この触媒系を、約350℃の温度で約2時間に亘り水素を通過させることによって、還元させた。
実施例1と同様に、同じ条件下であるが、ホウ素含浸工程を行わずに製造した0.5%Pd/TiO2触媒により、実験を行った。表1に要約された結果は、この非ホウ素含有触媒に関する低い転化率と安定性を示している。
実施例1と同様に、1800ml/分の供給物の流量で、異なる量の触媒、すなわち、10.4gの石英により希釈された0.057gの触媒を反応装置に用いて、実験を行い、約1,900,000h-1の空間速度が得られた。表2に示された結果は、良好な転化率、選択性および触媒の安定性を示す。
実施例1および3と同様に、1800ml/分の供給物の流量で、10.4gの石英により希釈された0.03gの0.5%Pd−1%B/TiO2触媒を用いて、実験を行い、約3,600,000h-1の空間速度が得られた。表2に示された結果は、この短い接触時間でさらに高い転化率が得られ、選択性および安定性を維持していることを示す。1560時間後の空気による処理は、触媒の活性を少なくともある程度再生することができる。
Claims (15)
- アルキンを対応するアルケンに選択的に水素化するためのプロセスであって、水素および0.1から20質量%のアルキンを含むガス状供給物を、ホウ素改質担体上に堆積された少なくとも1つの10族元素を含む触媒と接触させる工程を有してなるプロセス。
- 前記10族元素が堆積されるときに、前記担体の表面上にB2O3が存在することを特徴とする請求項1記載のプロセス。
- 前記ホウ素改質担体上に少なくともPdが堆積されていることを特徴とする請求項1または2記載のプロセス。
- 前記触媒が、一般式M1−M2−M3−B/担体により表され、該触媒が、Ni、PdおよびPtからなる群より選択される、0.03から1質量%の少なくとも1つの元素M1;Cu、Co、Cr、Pt、Ru、AuおよびAgからなる群より選択される0〜1質量%の少なくとも1つの元素M2;アルカリ金属およびアルカリ土類金属からなる群より選択される、0〜1質量%の少なくとも1つの元素M3;および0.1〜5質量%のホウ素を含有することを特徴とする請求項1から3いずれか1項記載のプロセス。
- 前記担体が、SiO2、ZrO2、Al2O3およびTiO2、並びに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から4いずれか1項記載のプロセス。
- 前記触媒が、SiO2、ZrO2、Al2O3およびTiO2、並びにそれらの混合物からなる群より選択される固体希釈剤を、2から250の希釈剤対担体の質量比で含有し、該希釈剤が該担体とは異なることを特徴とする請求項1から5いずれか1項記載のプロセス。
- 前記供給物中のアルキンがアセチレンであり、前記対応するアルケンがエチレンであることを特徴とする請求項1から6いずれか1項記載のプロセス。
- 前記供給物が、エチレン、メタン、エタン、一酸化炭素、二酸化炭素、窒素、および水からなる群より選択される少なくとも1つの化合物をさらに含むことを特徴とする請求項1から7いずれか1項記載のプロセス。
- 前記ガス状供給物が4から16質量%のアセチレンを含有することを特徴とする請求項1から8いずれか1項記載のプロセス。
- 前記供給物における水素のアルキンに対するモル比が1.1から5までであることを特徴とする請求項1から9いずれか1項記載のプロセス。
- 前記水素化が、120〜450℃の温度および大気圧から3MPaの圧力で行われることを特徴とする請求項1から10いずれか1項記載のプロセス。
- 1,000,000h-1から4,000,000h-1の空間速度で行われることを特徴とする請求項1から11いずれか1項記載のプロセス。
- 前記触媒が、
(a)(a1)担体をホウ素化合物の水溶液で処理し、
(a2)処理済みの前記担体を乾燥させ、
(a3)乾燥済みの前記担体をか焼して、その表面に酸化ホウ素を形成する、
ことにより、前記担体をホウ素で改質し、
(b)(b1)か焼済みの前記担体に、Ni、PdおよびPtからなる群より選択される少なくとも1つの元素を含む水溶液を含浸させ、
(b2)含浸済みの前記担体を乾燥させる、
ことにより、ホウ素を含有する前記担体を、Ni、PdおよびPtからなる群より選択される少なくとも1つの元素M1で改質する、
各工程を有してなる方法により調製されることを特徴とする請求項1から6いずれか1項記載のプロセス。 - 前記方法が、前記含浸済みの担体を固体希釈剤と混合する工程を含むことを特徴とする請求項13記載のプロセス。
- 前記方法が、前記含浸済みの担体を還元剤と接触させる工程を含むことを特徴とする請求項13または14記載のプロセス。
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PCT/EP2009/008962 WO2010069543A1 (en) | 2008-12-18 | 2009-12-15 | Selective catalytic hydrogenation of alkynes to corresponding alkenes |
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US9067851B2 (en) | 2011-08-25 | 2015-06-30 | Exxonmobil Chemical Patents Inc. | Selective hydrogenation of alkynyl-containing compounds |
CN105592919A (zh) * | 2013-09-06 | 2016-05-18 | 沙特基础工业公司 | 加氢反应器和工艺 |
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CN112403460B (zh) * | 2019-08-23 | 2022-05-06 | 中国科学院大连化学物理研究所 | 基于金属-载体强相互作用的铂催化剂及其制备和应用 |
KR102223597B1 (ko) * | 2019-10-10 | 2021-03-05 | 한국화학연구원 | 아세틸렌의 선택적 수소화용 촉매 및 이의 제조방법 |
CN113024340B (zh) * | 2021-03-18 | 2023-10-20 | 长春工业大学 | 一种镍催化水为氢源还原炔烃为烯烃的方法 |
CN114602499B (zh) * | 2022-03-09 | 2024-03-12 | 华南理工大学 | 一种抗烧结PtCu-BOx/SiO2高稳定性催化剂及其制备方法与应用 |
WO2024217716A1 (en) | 2023-04-18 | 2024-10-24 | Shell Internationale Research Maatschappij B.V. | A method of preparing olefins |
CN117816178A (zh) * | 2023-12-26 | 2024-04-05 | 浙江工业大学 | 一种Cs掺杂的CuNi/二氧化钛催化剂及其制备与应用 |
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US8921631B2 (en) | 2014-12-30 |
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