JP2010090366A - 特定の組成を有する硫化触媒を用いる選択的水素化方法 - Google Patents
特定の組成を有する硫化触媒を用いる選択的水素化方法 Download PDFInfo
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Abstract
【解決手段】硫化された形態で用いられる、第VIb族からの少なくとも1種の金属および第VIII族からの少なくとも1種の非貴金属を担体上に担持されて含む担持触媒を用いる。触媒は、特定の組成、第VIII族金属に対する第VIb族金属の最適化された比および触媒の単位表面積当たり第VIb族からの元素の最適化された密度を有する。
【選択図】なし
Description
・第VIb族からの元素の酸化物の重量による量は4〜20重量%の範囲であり;
・第VIII族からの元素の酸化物の重量による量は15重量%未満であり;
・前記触媒の構成金属の硫化度は少なくとも60%であり;
・第VIII族からの非貴金属と第VIb族からの金属の間のモル比は0.6〜3mol/molの範囲であり;
・触媒の単位表面積当たりの第VIb族からの元素の密度は、触媒面積(m2)当たり第VIb族の酸化物の重量厳密に10−3グラム未満である
触媒を用いる、方法を記載する。
・ジオレフィンをモノオレフィンに選択的に水素化すること;
・モノオレフィンとの反応によって軽質飽和硫黄含有化合物、主にチオールをスルフィドまたはより重質のチオールに変換すること
からなる。
酸化物形態における第VIb族からの元素の酸化物の重量による量は、4〜20重量%の範囲、好ましくは5〜15重量%の範囲である。第VIb族金属は、好ましくは、モリブデンおよびタングステンから選択される。より好ましくは、第VIb族金属はモリブデンである。
(S/元素)触媒≧0.6×(S/元素)理論
式中:
(S/元素)触媒は、触媒中に存在する硫黄(S)と元素の間のモル比であり;
(S/元素)理論は、元素のスルフィドへの全硫化に対応する硫黄と元素の間のモル比である。
・ (S/Fe)理論=1
・ (S/Co)理論=8/9
・ (S/Ni)理論=2/3
・ (S/Mo)理論=2/1
・ (S/W)理論=2/1
複数種の金属を含む触媒について、触媒上に存在するSと一連の元素の間のモル比も、各元素のスルフィドへの全硫化に対応する理論モル比の60%に少なくとも等しくなければならず、計算は、各元素の相対的なモル割合により比例して行われる。
(S/Mo+Ni)触媒=0.6×{(0.7×2)+(0.3×(2/3))}
によって与えられる。
触媒A、B、C、DおよびEは、乾式含浸によって調製された。合成手順は、ヘプタモリブデン酸アンモニウムおよび硝酸ニッケルの溶液であって、金属前駆体を含有する水溶液の容積は、含浸させられるべき担体の質量に対応する水吸収容積(細孔に浸透し得る水の総容積)に等しい、溶液の乾式含浸を行うことからなっていた。溶液中の前駆体の濃度は、所望重量の金属酸化物を担体上に担持するように調節された。
触媒A、B、C、DおよびEの活性は、500mLの攪拌オートクレーブ反応器において行われるモデル分子の混合物についての選択的水素化試験によって評価された。大気圧において、硫化ベンチ(sulphrization bench)中、15容積%のH2Sによって構成されるH2S/H2混合物1L/g(触媒)・h下に、400℃で2時間にわたって2〜6グラムの触媒が硫化された。この手順は、本発明の触媒の全てについて80%超の硫化比を生じさせた。硫化された触媒は、次いで、空気の不存在下に反応器に移され、1.5MPaの全圧および160℃の温度で250mLのモデル仕込原料と接触させられた。圧力は、試験の間水素を加えることによって一定に維持された。
A(X)=k(X)/m
式中:
A(X):反応Xについての触媒の活性(触媒のグラム当たりの分−1);
k:考慮中の反応についての速度定数(分−1)、下記式にしたがって計算される:
45:試験継続期間(分);
conv(X):化合物Xの転化;X=イソプレンまたはプロパン−2−チオールまたはヘキサン−1;
m:試験に関与した触媒(酸化物形態)の質量;
X:考慮中の反応:
X=イソプレン:イソプレンの水素化;
X=ヘキセン−1:ヘキセン−1の水素化;
X=プロパン−2−チオール:プロパン−2−チオールの転化。
A(イソプレン)/A(ヘキセン−1)
種々の触媒について得られた結果は、下記表2に示される。
この実施例において、実施例1において記載された操作手順を用いて触媒GおよびHが調製された。
Claims (17)
- 多不飽和化合物をモノ不飽和化合物に選択的に水素化する方法であり、ガソリン中に含まれる不飽和化合物との反応による飽和軽質硫黄含有化合物の重量化と一緒に行い得る方法であって、第VIb族からの少なくとも1種の金属および第VIII族からの少なくとも1種の非貴金属を担体上に担持されて含有する触媒を用い、
・第VIb族からの元素の酸化物の重量による量:4〜20重量%;
・第VIII族からの元素の酸化物の重量による量:15重量%未満;
・前記触媒の構成金属の硫化度:少なくとも60%;
・第VIII族からの非貴金属と第VIb族からの金属の間のモル比:0.6〜3mol/mol;
・触媒の単位表面積当たりの第VIb族からの元素の密度:触媒の面積(m2)当たり第VIb族元素の酸化物厳密に10−3グラム未満
である、方法。 - 触媒は、モリブデンおよびタングステンから選択される第VIb族からの金属を含む、請求項1に記載の方法。
- 第VIb族からの金属はモリブデンである、請求項2に記載の方法。
- 触媒は、ニッケル、コバルトおよび鉄から選択される第VIII族からの非貴金属を含む、請求項1に記載の方法。
- 第VIII族からの非貴金属はニッケルである、請求項4に記載の方法。
- 触媒は、第VIII族からの元素の酸化物の重量含有量1〜10重量%を含む、請求項1〜5のいずれか1つに記載の方法。
- 前記触媒の構成金属の硫化度は80%超である、請求項1に記載の方法。
- 第VIII族からの非貴金属と第VIb族からの金属の間のモル比は1〜2mol/molの範囲である、請求項1に記載の方法。
- 触媒は、0.3cm3/g超の総細孔容積を有する、請求項1〜8のいずれか1つに記載の方法。
- 触媒は、0.4〜1.4cm3/gの範囲の総細孔容積を有する、請求項9に記載の方法。
- 触媒の比表面積は300m2/g未満である、請求項1〜10のいずれか1つに記載の方法。
- 触媒担体は、アルミナ、シリカ、炭化ケイ素から選択される多孔質金属酸化物または前記酸化物の混合物である、請求項1に記載の方法。
- 触媒担体は、高純度のアルミナによって構成される、請求項12に記載の方法。
- 担体は、立方晶系ガンマアルミナまたはデルタアルミナによって構成される、請求項12または13に記載の方法。
- 触媒担体は、0.4〜1.4cm3/gの範囲の細孔容積を有する、請求項12〜14のいずれか1つに記載の方法。
- 触媒担体は、0.5〜1.3cm3/gの範囲の細孔容積を有する、請求項15に記載の方法。
- 請求項1〜16のいずれか1つの方法による選択的水素化方法であって、仕込原料は、80〜220℃の範囲の温度、1〜10h−1の範囲の液体毎時空間速度、および0.5〜5MPaの範囲の圧力で触媒と接触させられる、方法。
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CN103143366B (zh) | 2011-12-06 | 2015-05-13 | 中国石油天然气股份有限公司 | 一种不饱和化合物选择加氢催化剂 |
WO2014047753A1 (zh) * | 2012-09-28 | 2014-04-03 | 中国石油天然气股份有限公司 | 一种使不饱和化合物选择加氢的方法 |
FR2986799B1 (fr) | 2012-02-15 | 2015-02-06 | IFP Energies Nouvelles | Procede de conversion d'une charge lourde, mettant en oeuvre une unite de craquage catalytique et une etape d'hydrogenation selective de l'essence issue du craquage catalytique |
FR2993569B1 (fr) * | 2012-07-17 | 2015-12-04 | IFP Energies Nouvelles | Procede de desulfuration d'une essence |
FR2997415B1 (fr) * | 2012-10-29 | 2015-10-02 | IFP Energies Nouvelles | Procede de production d'une essence a basse teneur en soufre |
FR3014896B1 (fr) | 2013-12-18 | 2018-07-27 | IFP Energies Nouvelles | Procede d'hydrodesulfuration de coupes d'hydrocarbures |
FR3030563B1 (fr) * | 2014-12-18 | 2018-06-29 | IFP Energies Nouvelles | Procede d'adoucissement en composes du type sulfure d'une essence olefinique |
FR3035117B1 (fr) | 2015-04-15 | 2019-04-19 | IFP Energies Nouvelles | Procede d'adoucissement en composes du type sulfure d'une essence olefinique |
US9828093B2 (en) * | 2015-05-27 | 2017-11-28 | First Principles, Inc. | System for recharging remotely controlled aerial vehicle, charging station and rechargeable remotely controlled aerial vehicle, and method of use thereof |
US9714012B1 (en) | 2016-01-22 | 2017-07-25 | International Business Machines Corporation | Power source element replacement during vehicle operation |
FR3049955B1 (fr) | 2016-04-08 | 2018-04-06 | IFP Energies Nouvelles | Procede de traitement d'une essence |
FR3057578B1 (fr) | 2016-10-19 | 2018-11-16 | IFP Energies Nouvelles | Procede d'hydrodesulfuration d'une essence olefinique. |
FR3109897B1 (fr) | 2020-05-07 | 2023-11-24 | Ifp Energies Now | Catalyseur d’hydrogénation sélective comprenant un support spécifique en partie sous forme aluminate |
FR3109898B1 (fr) * | 2020-05-07 | 2023-04-14 | Ifp Energies Now | Catalyseur d’hydrogénation sélective comprenant une répartition particulière du nickel et du molybdène |
FR3109899B1 (fr) * | 2020-05-07 | 2023-11-24 | Ifp Energies Now | Catalyseur d’hydrogénation comprenant un support et un ratio NiMo spécifique |
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