CN110947379B - 一种高活性钌催化剂的制备及其在室温催化加氢方面的应用 - Google Patents
一种高活性钌催化剂的制备及其在室温催化加氢方面的应用 Download PDFInfo
- Publication number
- CN110947379B CN110947379B CN201911337318.8A CN201911337318A CN110947379B CN 110947379 B CN110947379 B CN 110947379B CN 201911337318 A CN201911337318 A CN 201911337318A CN 110947379 B CN110947379 B CN 110947379B
- Authority
- CN
- China
- Prior art keywords
- ruthenium
- catalyst
- ruthenium catalyst
- finished
- room temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 66
- 229910052707 ruthenium Inorganic materials 0.000 title claims abstract description 65
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 238000009903 catalytic hydrogenation reaction Methods 0.000 title claims abstract description 7
- 230000000694 effects Effects 0.000 title abstract description 17
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 28
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 28
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000376 reactant Substances 0.000 claims abstract description 10
- BIXNGBXQRRXPLM-UHFFFAOYSA-K ruthenium(3+);trichloride;hydrate Chemical compound O.Cl[Ru](Cl)Cl BIXNGBXQRRXPLM-UHFFFAOYSA-K 0.000 claims abstract description 9
- 239000002243 precursor Substances 0.000 claims abstract description 7
- 238000005470 impregnation Methods 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 22
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 11
- 239000001257 hydrogen Substances 0.000 claims description 11
- 229910052739 hydrogen Inorganic materials 0.000 claims description 11
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 238000009210 therapy by ultrasound Methods 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000012300 argon atmosphere Substances 0.000 claims description 6
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 6
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims description 6
- QPJVMBTYPHYUOC-UHFFFAOYSA-N methyl benzoate Chemical compound COC(=O)C1=CC=CC=C1 QPJVMBTYPHYUOC-UHFFFAOYSA-N 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 5
- MHDVGSVTJDSBDK-UHFFFAOYSA-N dibenzyl ether Chemical compound C=1C=CC=CC=1COCC1=CC=CC=C1 MHDVGSVTJDSBDK-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 claims description 4
- 239000012074 organic phase Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000005711 Benzoic acid Substances 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000012298 atmosphere Substances 0.000 claims description 3
- 235000010233 benzoic acid Nutrition 0.000 claims description 3
- 235000010290 biphenyl Nutrition 0.000 claims description 3
- 239000004305 biphenyl Substances 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 229940095102 methyl benzoate Drugs 0.000 claims description 3
- 239000006072 paste Substances 0.000 claims description 3
- DLRJIFUOBPOJNS-UHFFFAOYSA-N phenetole Chemical compound CCOC1=CC=CC=C1 DLRJIFUOBPOJNS-UHFFFAOYSA-N 0.000 claims description 3
- BOTNYLSAWDQNEX-UHFFFAOYSA-N phenoxymethylbenzene Chemical compound C=1C=CC=CC=1COC1=CC=CC=C1 BOTNYLSAWDQNEX-UHFFFAOYSA-N 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- YBCAZPLXEGKKFM-UHFFFAOYSA-K ruthenium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Ru+3] YBCAZPLXEGKKFM-UHFFFAOYSA-K 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000000606 toothpaste Substances 0.000 claims description 3
- 229940034610 toothpaste Drugs 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- OZULZIWPUGFZCY-UHFFFAOYSA-N 1-ethyl-2-phenoxybenzene Chemical compound CCC1=CC=CC=C1OC1=CC=CC=C1 OZULZIWPUGFZCY-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 9
- 230000003197 catalytic effect Effects 0.000 description 6
- 238000006555 catalytic reaction Methods 0.000 description 6
- 238000005984 hydrogenation reaction Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Chemical compound O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 description 4
- 229910052763 palladium Inorganic materials 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- JKSGBCQEHZWHHL-UHFFFAOYSA-N 2-phenoxyethylbenzene Chemical compound C=1C=CC=CC=1OCCC1=CC=CC=C1 JKSGBCQEHZWHHL-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910019841 Ru—Al2O3 Inorganic materials 0.000 description 2
- 238000003917 TEM image Methods 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910003158 γ-Al2O3 Inorganic materials 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- -1 alicyclic ethers Chemical class 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- OCDXZFSOHJRGIL-UHFFFAOYSA-N cyclohexyloxycyclohexane Chemical compound C1CCCCC1OC1CCCCC1 OCDXZFSOHJRGIL-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 150000003303 ruthenium Chemical class 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910009112 xH2O Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/46—Ruthenium, rhodium, osmium or iridium
- B01J23/462—Ruthenium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/17—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrogenation of carbon-to-carbon double or triple bonds
- C07C29/19—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrogenation of carbon-to-carbon double or triple bonds in six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
- C07C41/20—Preparation of ethers by reactions not forming ether-oxygen bonds by hydrogenation of carbon-to-carbon double or triple bonds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/02—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation
- C07C5/10—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of aromatic six-membered rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/36—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by hydrogenation of carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
- C07C67/303—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by hydrogenation of unsaturated carbon-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2602/00—Systems containing two condensed rings
- C07C2602/02—Systems containing two condensed rings the rings having only two atoms in common
- C07C2602/14—All rings being cycloaliphatic
- C07C2602/26—All rings being cycloaliphatic the ring system containing ten carbon atoms
- C07C2602/28—Hydrogenated naphthalenes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明公开了一种高活性钌催化剂的制备及其在室温催化加氢方面的应用,以三氯化钌水合物为前驱体,以α‑Al2O3为载体,采用浸渍法合成高活性钌催化剂Ru/α‑Al2O3;该催化剂在异丙醇为溶剂时能够在室温下高效催化多种反应物加氢,产物的选择性为100%,产率高。本发明催化剂的制备简单,成本低,具有较好的应用前景。
Description
技术领域
本发明属于催化剂制备技术领域,涉及一种钌催化剂的制备与应用,具体涉及一种高活性钌催化剂的制备及其在室温催化加氢方面的应用。
背景技术
(杂)芳烃的选择性加氢代表了化学工业中必不可少的过程,特别是对于聚合物中间体和多种精细化学品的生产。木质素等生物质衍生的芳烃的选择性加氢在开发用于化学生产的新型可持续原料中起着举足轻重的作用,并且迄今仍是一个众所周知的困难。尽管木质素结构单元的芳烃环的氢化是众所周知的,但关于此类化合物选择性生成脂环族醚的催化剂的开发报道很少。
钌纳米颗粒代表了用于选择性加氢的最先进催化剂,与其他贵金属相比(例如钯),价格也较低,通过调节纳米颗粒的形状和大小以及载体的类型,催化剂性能都得到了极大的改善。尽管进行了所有这些努力,但是所报道的催化剂对于高反应性苄基醚和相关衍生物的氢化仍表现出低选择性。传统的镍、钴类催化剂活性较低,而报道的钌、钯类催化剂活性虽然很高,但是制备方法复杂,操作很困难,催化剂需要保存在特定的条件下才能发挥作用,反应条件很苛刻,基本很难在工业上应用。
发明内容
本发明的目的之一是提供一种高活性钌催化剂的制备方法,步骤简单,反应条件温和。
本发明的目的之二是提供上述方法制备的高活性钌催化剂在室温催化加氢方面的应用。
为实现上述目的,本发明采用的技术方案如下:一种高活性钌催化剂的制备方法,包括以下步骤:
(1)称取适量钌前躯体三氯化钌水合物,加入去离子水中,超声5-15min至完全溶解和分散均匀;
(2)称取适量α-Al2O3,加入到上述三氯化钌水溶液中,搅拌至牙膏状或者糊状,然后超声15-30min;
(3)超声结束后用锡箔纸封口,然后放入真空干燥箱中,室温下浸渍24h;
(4)浸渍完成后,放入烘箱中,在105℃下干燥12h;
(5)完全去除水分后,将得到的固体研磨成粉,随后在300℃的氩气气氛下煅烧3h,煅烧完成后再在300℃的氢气气氛下还原3h,还原完成后,在氩气氛围下冷却至室温,即得高活性钌催化剂Ru/α-Al2O3。
优选的,所述钌催化剂Ru/α-Al2O3中金属钌的负载量为7-13wt%。
优选的,所述钌催化剂Ru/α-Al2O3中金属钌呈纳米状态高度分散在α-Al2O3载体表面,金属钌的平均粒径为3nm。
本发明还提供上述方法制得的钌催化剂Ru/α-Al2O3在室温催化加氢方面的应用。
利用钌催化剂Ru/α-Al2O3进行加氢反应的具体步骤是:
(1)将反应物、一定量的催化剂Ru/α-Al2O3和异丙醇一起放入高压搅拌釜式反应器中,密封后通入氢气排除残留的空气;
(2)持续通入氢气将反应器加压至1-3MPa,然后在20-30℃温度下搅拌反应2-24h;
(3)反应结束后,将反应系统自然冷却至室温并释放压力,过滤除去催化剂,并通过GC-MS和GC分析获得的有机相。
优选的,步骤(1)中,所述反应物包括但不仅限于二苯醚、苄基苯基醚、苯氧基乙苯、二苄醚、苯、苯酚、苯甲酸甲酯、苯甲酸、苯乙醚、联苯、萘。
优选的,步骤(1)中,所述催化剂Ru/α-Al2O3的用量为所述反应物质量的20-50%。
优选的,步骤(2)中,所述搅拌转速为800rpm。
与现有技术相比,本发明具有如下有益效果:
本发明的钌催化剂制备简单,制备的Ru/α-Al2O3催化剂活性高,在异丙醇作为溶剂时能够在室温下高效催化多种反应物加氢,选择性高,产率高,具有较好的应用前景。
附图说明
图1为本发明实施例1制得的钌催化剂的XRD图;
图2为本发明实施例1制得的钌催化剂的TEM图;
图3为本发明实施例1制得的钌催化剂上负载的钌颗粒的粒径分布图;
图4为本发明实施例1制得的钌催化剂的SEM图。
具体实施方式
下面结合附图和具体实施例对本发明作进一步详细说明。
实施例1:制备10%Ru/α-Al2O3
(1)按照质量百分比,称取0.228g钌前躯体三氯化钌水合物(RuCl3·xH2O)于烧杯中,加入适量的去离子水溶解,超声5-15min至完全溶解和分散均匀;
(2)称取1g的α-Al2O3,加入到盛有三氯化钌水溶液的烧杯中,用玻璃棒搅拌至牙膏状或者糊状,然后超声15-30min;
(3)超声完成后,用锡箔纸盖住烧杯口,放入真空干燥箱中,室温下浸渍24h;
(4)浸渍完成后,放在烘箱中,在105℃下干燥12h;
(5)干燥完去除水分之后,将得到的固体研磨至粉末,随后在300℃的60mL/min氩气氛围下煅烧3h,煅烧完成后立即换成60mL/min氢气氛围,还原3h,还原完成后,在60mL/min氩气氛围下冷却至室温下,制得的催化剂记为10%Ru/α-Al2O3。
实施例2:制备7%Ru/α-Al2O3
与实施例1不同的是,三氯化钌水合物的使用量为0.155g。
实施例3:制备13%Ru/α-Al2O3
与实施例1不同的是,三氯化钌水合物的使用量为0.307g。
对比例1:制备10%Ru/HZSM-5
与实施例1不同的是,载体为HZSM-5。
对比例2:制备10%Ru/MgO
与实施例1不同的是,载体为MgO。
对比例3:制备10%Ru/ZrO2
与实施例1不同的是,载体为ZrO2。
对比例4:制备10%Ru/Nb2O5
与实施例1不同的是,载体为Nb2O5。
对比例5:制备10%Ru/AC
与实施例1不同的是,载体为活性炭AC。
对比例6:制备10%Ru/γ-Al2O3
与实施例1不同的是,载体为γ-Al2O3。
对比例7:制备10%Pd/C
与实施例1不同的是,前驱体为Pd,载体为炭黑C。
对比例8:制备10%Pd/α-Al2O3
与实施例1不同的是,前驱体为Pd。
图1为本发明实施例1制得的钌催化剂的XRD图;由图1可知,合成的钌催化剂在2θ=38.4°、42.2°、44.0°、58.3°时,对应的晶型分别为Ru(100)、(002)、(101)、(102),表明了还原之后催化剂中的金属氧化态钌转化成了零价的元素钌,提供催化活性。
图2、图3分别为本发明实施例1制得的钌催化剂的TEM图和钌金属颗粒的粒径分布图;由图2、图3可知,制备的10%Ru/α-Al2O3催化剂中金属钌的平均颗粒大小在3nm左右,而且分散的很均匀,较小的颗粒和分散均匀的钌具有很高的催化活性。
图4为本发明实施例1制得的钌催化剂的SEM图。由图4可知,10%Ru/α-Al2O3催化剂中载体α-Al2O3的形状是片状,还原后的钌金属则分散在载体表面,提供高的催化活性。
实施例4:二苯醚(DPE)的催化反应
(1)将100mg反应底物二苯醚、30mg催化剂10%Ru/α-Al2O3和20mL异丙醇一起放入100ml不锈钢高压反应釜中,密封后通入氢气排除反应器中的残留的空气;
(2)持续通入氢气将反应釜加压至1MPa,然后在30℃温度下搅拌反应2h,搅拌转速为800rpm;
(3)反应结束后,将反应系统自然冷却至室温并释放压力,过滤除去催化剂,并通过GC-MS和GC分析获得的有机相。
将对比例1-8制得的催化剂分别进行二苯醚的催化反应,反应条件同实施例4,同时产物进行分析,结果如表1所示:
表1不同催化剂对二苯醚的催化反应
由表1可知,在同一反应条件下,Pd/C和Pd/α-Al2O3均无催化效果,而Ru/α-Al2O3的活性最高,与Al2O3的晶型有关,通常的γ-Al2O3在此条件下没有α-Al2O3的载体性质好,主要是暴露的晶面不同,导致催化活性差别很大。
实施例5-6
将实施例2-3制得的催化剂分别进行二苯醚的催化反应,反应条件同实施例4,同时产物进行分析,结果如表2所示:
表2
由表2可知,在二苯醚选择性催化生成二环己烷醚的反应中,α-Al2O3载体负载的金属钌含量在7-13wt%的范围内,均具有100%的转化率,且收率接近或高于70%。
实施例7-17
(1)将100mg反应物、30mg催化剂10%Ru/α-Al2O3和20mL异丙醇一起放入100ml不锈钢高压反应釜中,密封后通入氢气排除反应器中的残留的空气;
(2)持续通入氢气将反应釜加压至1-3MPa,然后在25℃温度下搅拌反应2-24h,搅拌转速为800rpm;
(3)反应结束后,将反应系统自然冷却至室温并释放压力,过滤除去催化剂,并通过GC-MS和GC分析获得的有机相,结果如表3所示。
表3 10%Ru/α-Al2O3对不同反应物的催化反应
由表3可知,本发明制得的催化剂Ru/α-Al2O3在异丙醇作为溶剂时能够在室温下高效催化多种反应物选择性生成脂环族醚,例如二苯醚、苄基苯基醚、苯氧基乙苯、二苄醚、苯、苯酚、苯甲酸甲酯、苯甲酸、苯乙醚、联苯、萘,选择性均为100%,且产率高,说明本发明制得的催化剂Ru/α-Al2O3催化活性高。
Claims (3)
1.一种钌催化剂Ru/α-Al2O3在室温催化加氢方面的应用,其特征在于,具体步骤是:
(1)将反应物、一定量的钌催化剂Ru/α-Al2O3和异丙醇一起放入高压搅拌釜式反应器中,密封后通入氢气排除釜内残留的空气;所述反应物包括二苯醚、苄基苯基醚、苯氧基乙苯、二苄醚、苯、苯酚、苯甲酸甲酯、苯甲酸、苯乙醚、联苯、萘中的一种;
(2)持续通入氢气将反应器加压至1-3MPa,然后在20-30℃温度下搅拌反应2-24 h;
(3)反应结束后,将反应系统自然冷却至室温并释放压力,过滤除去催化剂,并通过GC-MS和GC分析获得的有机相;
所述钌催化剂Ru/α-Al2O3中钌的负载量为7-13wt%;所述钌催化剂Ru/α-Al2O3中金属钌呈纳米状态高度分散在α-Al2O3载体表面,金属钌的平均粒径为3nm;
所述钌催化剂Ru/α-Al2O3的制备过程如下:
(1.1)称取适量钌前驱体三氯化钌水合物,加入去离子水中,超声5-15min至完全溶解和分散均匀;
(1.2)称取适量α-Al2O3,加入到上述三氯化钌水溶液中,搅拌至牙膏状或者糊状,然后超声15-30min;
(1.3)超声结束后用锡箔纸封口,然后放入真空干燥箱中,室温下浸渍24h;
(1.4)浸渍完成后,放入烘箱中,在105℃下干燥12h;
(1.5)完全去除水分后,将得到的固体研磨成粉,随后在300℃的氩气气氛下煅烧3h,煅烧完成后再在300℃的氢气气氛下还原3h,还原完成后,在氩气氛围下冷却至室温,即得钌催化剂Ru/α-Al2O3。
2.根据权利要求1所述的应用,其特征在于,步骤(1)中,所述钌催化剂Ru/α-Al2O3的用量为所述反应物质量的20-50%。
3.根据权利要求1所述的应用,其特征在于,步骤(2)中,所述搅拌转速为800 rpm。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911337318.8A CN110947379B (zh) | 2019-12-23 | 2019-12-23 | 一种高活性钌催化剂的制备及其在室温催化加氢方面的应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911337318.8A CN110947379B (zh) | 2019-12-23 | 2019-12-23 | 一种高活性钌催化剂的制备及其在室温催化加氢方面的应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110947379A CN110947379A (zh) | 2020-04-03 |
CN110947379B true CN110947379B (zh) | 2020-08-18 |
Family
ID=69983449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201911337318.8A Active CN110947379B (zh) | 2019-12-23 | 2019-12-23 | 一种高活性钌催化剂的制备及其在室温催化加氢方面的应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110947379B (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114644551B (zh) * | 2020-12-18 | 2023-09-26 | 湖南长炼新材料科技股份公司 | 一种苯甲酸加氢反应方法 |
CN113083351B (zh) * | 2021-04-08 | 2022-01-14 | 中国矿业大学 | 一种高活性钌分子筛催化剂Ru/Ga-SH5在催化加氢脱氧方面的应用 |
CN113181908A (zh) * | 2021-05-10 | 2021-07-30 | 中国矿业大学 | 一种高活性Ru/C催化剂的制备及其在催化氢解方面的应用 |
CN115646487B (zh) * | 2022-10-12 | 2023-05-23 | 中国矿业大学 | 一种高活性Ru-M/α-Al2O3催化剂及其制备方法与应用 |
CN115845841A (zh) * | 2022-11-22 | 2023-03-28 | 安徽工业大学 | 一种萘加氢制十氢萘催化剂及其制备方法和应用 |
CN116273051A (zh) * | 2023-03-21 | 2023-06-23 | 榆林学院 | 一种γ-Al2O3负载钌镍催化剂及其在苯酚加氢反应中的应用 |
CN118619802A (zh) * | 2024-07-04 | 2024-09-10 | 广东工业大学 | Ru/CaTiO3催化剂催化二苯醚加氢反应制备环己烷和环己醇的方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4424162A (en) * | 1981-08-31 | 1984-01-03 | Uop Inc. | Selective hydrogenation of fatty materials |
CN1286648A (zh) * | 1997-11-27 | 2001-03-07 | 出光兴产株式会社 | 以氧化铝为载体的钌催化剂 |
CN1508233A (zh) * | 2002-12-13 | 2004-06-30 | 中国科学院大连化学物理研究所 | 一种富氢条件下一氧化碳选择氧化催化剂及制备方法 |
CN102614870A (zh) * | 2012-03-20 | 2012-08-01 | 中国平煤神马能源化工集团有限责任公司 | 乙烯基乙炔加氢催化剂及其制备方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050096215A1 (en) * | 2003-10-31 | 2005-05-05 | Conocophillips Company | Process for producing synthesis gas using stabilized composite catalyst |
-
2019
- 2019-12-23 CN CN201911337318.8A patent/CN110947379B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4424162A (en) * | 1981-08-31 | 1984-01-03 | Uop Inc. | Selective hydrogenation of fatty materials |
CN1286648A (zh) * | 1997-11-27 | 2001-03-07 | 出光兴产株式会社 | 以氧化铝为载体的钌催化剂 |
CN1508233A (zh) * | 2002-12-13 | 2004-06-30 | 中国科学院大连化学物理研究所 | 一种富氢条件下一氧化碳选择氧化催化剂及制备方法 |
CN102614870A (zh) * | 2012-03-20 | 2012-08-01 | 中国平煤神马能源化工集团有限责任公司 | 乙烯基乙炔加氢催化剂及其制备方法 |
Non-Patent Citations (3)
Title |
---|
Selective cleavage of C-O bond in benzyl phenyl ether over Pd/AC at room temperature;Tao Xie,et al;《Fuel Processing Technology》;20190228;第188卷;第190-196页 * |
The effect of the crystalline phase of alumina on the selective CO oxidation in a hydrogen-rich stream over Ru/Al2O3;Yun Ha Kim,et al;《Applied Catalysis B: Environmental》;20100206;第96卷(第1-2期);第41-50页 * |
Yun Ha Kim,et al.The effect of the crystalline phase of alumina on the selective CO oxidation in a hydrogen-rich stream over Ru/Al2O3.《Applied Catalysis B: Environmental》.2010,第96卷(第1-2期),第41-50页. * |
Also Published As
Publication number | Publication date |
---|---|
CN110947379A (zh) | 2020-04-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110947379B (zh) | 一种高活性钌催化剂的制备及其在室温催化加氢方面的应用 | |
CN110756225B (zh) | 一种金属/MOFs纳米催化剂及其制备方法与应用 | |
CN109718806B (zh) | 一种贵金属单原子催化剂及其制备方法和应用 | |
CN113083308B (zh) | 一种高比表面积亲水性活性炭为载体的镍基催化剂在催化加氢水解方面的应用 | |
CN113181921B (zh) | 一种高活性Ni/ACP催化剂及其制备方法和应用 | |
CN113083297B (zh) | 一种高活性极低负载量钌催化剂Ru@ZIF-8的制备及其在催化加氢方面的应用 | |
CN107774246B (zh) | 一种中空介孔硅纳米胶囊核内负载钯催化剂的制备方法及其应用 | |
CN110743544A (zh) | 一种苯乙酮选择加氢制备α-苯乙醇用钯炭催化剂及其制备方法与应用 | |
CN113181908A (zh) | 一种高活性Ru/C催化剂的制备及其在催化氢解方面的应用 | |
CN114849694B (zh) | 一种基于金属负载氧化钨氢化硝基芳烃的催化剂及其制备方法和应用 | |
CN107899581B (zh) | 一种负载于SiO2微球上的镍催化剂的制备方法及其应用 | |
CN111266119A (zh) | 一种α,β-不饱和醛酮选择性加氢铂基催化剂及其制备方法和用途 | |
CN113083351B (zh) | 一种高活性钌分子筛催化剂Ru/Ga-SH5在催化加氢脱氧方面的应用 | |
CN113145121B (zh) | 一种高比表面积的镍碳催化剂及其制备方法与应用 | |
CN113042089A (zh) | 一种用于氧气与苯甲醇合成苯甲醛的负载型纳米钯催化剂及其制备方法 | |
CN114653373B (zh) | 一种高选择性镍树脂碳催化剂及其制备方法与应用 | |
CN115350722B (zh) | 一种贵金属负载分子筛型双功能催化剂的制备方法及应用 | |
CN113181955B (zh) | 一种高活性Ru/S-HZSM-5催化剂及其制备方法与应用 | |
CN115069254A (zh) | 一种高活性镍基催化剂及其制备方法和在糠醛加氢中的应用 | |
CN114146700A (zh) | 一种3d打印气凝胶负载贵金属催化剂的制备方法 | |
CN115646487B (zh) | 一种高活性Ru-M/α-Al2O3催化剂及其制备方法与应用 | |
CN115138377B (zh) | 一种硫掺杂碳包覆镍催化剂及其制备方法与应用 | |
CN115212873B (zh) | 一种高效催化氢氧直接合成过氧化氢的原子级催化剂及其制备方法 | |
CN111229226B (zh) | 一种双金属多相催化剂及其制备方法、应用 | |
CN115090284A (zh) | 一种亲水活性炭负载钯催化剂在催化二苯醚定向水解方面的应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |