МОЛЕКУЛЯРНОЕ СИТО SCM-34, СПОСОБ ЕГО ПОЛУЧЕНИЯ И ЕГО ПРИМЕНЕНИЕ

Изобретение может быть использовано в химической промышленности. Предложено молекулярное сито SCM-34, содержащее алюминий, фосфор, кислород и опционально кремний и имеющее схематический химический состав в соответствии с формулой Al2O3:xSiO2:yP2O, где 0≤х≤0,5, 0,75≤y≤1,5. В данных рентгеновской дифракции XRD молекулярного сита угол 2Θ самого сильного пика в диапазоне 5-50° составляет 7,59±0,2. Предложены также способ приготовления молекулярного сита SCM-34, композиция молекулярного сита, применения молекулярного сита, способ приготовления металлосодержащего молекулярного сита типа AFI, способ приготовления молекулярного сита SAPO-17, применение молекулярного сита SAPO-17. Группа изобретений позволяет получить молекулярное сито SAPO-17, имеющее более высокие коэффициенты селективности этилен/пропилен в реакции преобразования синтез-газа в углеводород. 8 н. и 7 з.п. ф-лы, 10 ил., 7 табл., 21 пр.

EXHAUST GAS PURIFYING CATALYST COMPOSITION AND EXHAUST GAS PURIFYING CATALYST

An object of the present invention is to provide an exhaust gas purifying catalyst composition and an exhaust gas purifying catalyst, each of which has improved exhaust gas purification performance, and the present invention provides an exhaust gas purifying catalyst composition containing a Ce-based oxide particle, a Ce—Zr-based composite oxide particle, and a noble metal element, wherein an amount of Ce in terms of CeO 2 in the Ce-based oxide particle is 80% by mass or more based on the mass of the Ce-based oxide particle, wherein an amount of Ce in terms of CeO 2 in the Ce—Zr-based composite oxide particle is 5% by mass or more and 90% by mass or less based on the mass of the Ce—Zr-based composite oxide particle, and wherein a crystallite size of CeO 2 in the Ce-based oxide particle is 10 nm or more.

Porous Alumina and Catalyst

내열성과 내코킹성이 우수한 다공질 알루미나를 제공한다. 산화알루미늄에 실리카와 산화바륨을 첨가하여 이루어지는 다공질 알루미나로서, 산화알루미늄과 SiO 2 첨가량의 합계 질량에 대한 SiO 2 첨가량의 비율을 SiO 2 첨가율 (질량％) 로 하고, 산화알루미늄과 SiO 2 첨가량의 합계 질량에 대한 BaO 첨가량의 비율을 BaO 첨가율 (질량％) 로 하고, SiO 2 첨가율이 3 질량％ 이하의 범위 내, BaO 첨가율이 14 질량％ 이하의 범위 내에 있어서, 상기 다공질 알루미나의 1200 ℃ 30 시간의 열처리 후에 소정의 측정 방법으로 측정한 비표면적이, 상기 다공질 알루미나에 대해 SiO 2 첨가율을 3 질량％, BaO 첨가율을 0 질량％ 로 설정한 비교용의 기준 다공질 알루미나의 동일하게 측정한 기준 비표면적 이상이 되도록, 산화알루미늄에 실리카와 산화바륨이 각각 첨가되어 있다.

Catalyst compositions and methods of making and using the same

本发明公开了使轻质烷烃气体(和/或轻质烯烃气体)脱氢的方法，所述方法包括在含有氧化锆的催化剂组合物的存在下将氢气(H 2 )添加到所述轻质烷烃气体(和/或轻质烯烃气体)中。本发明还公开了含有氧化锆的催化剂组合物及其制备方法，其中所述催化剂组合物能够用于使轻质烷烃气体脱氢的方法中。

SCM-34 molecular sieve, manufacturing method thereof and use thereof

본 발명은 SCM-34 분자체, 이의 제조 방법 및 용도를 개시한다. SCM-34 분자체는 알루미늄, 인, 산소 및 선택적으로 규소를 포함한다. 분자체의 XRD 회절 데이터에서, 5-50° 범위 내에서 가장 강한 피크의 2θ 각도는 7.59±0.2이다. SCM-34 분자체는 새로운 골격 구조를 가지며, 금속-함유 AFI 타입 분자체 또는 SAPO-17 분자체의 제조에 사용될 수 있어, 화학적 생산에서 촉매에 대한 다양한 요구를 충족한다.

Small-particle-size SAPO-34 molecular sieve quickly synthesized by MTO waste catalyst and preparation method thereof

本发明提供了一种利用MTO废催化剂快速合成的小粒度SAPO‑34分子筛及其制备方法。该制备方法包括以下步骤：对废MTO催化剂细粉进行焙烧；然后与无机酸溶液混合搅拌，得到一混合液；将有机胺、磷源加入到所述混合液中并搅拌，得到SAPO‑34分子筛初始凝胶混合物；将初始凝胶混合物进行晶化，然后干燥，得到SAPO‑34分子筛原粉；将分子筛原粉进行焙烧，得到小粒度SAPO‑34分子筛。本发明提供的小粒度SAPO‑34分子筛的平均晶体粒度为500nm‑2μm。本发明在无需额外补充硅源和铝源且减少模板剂用量的同时，还可以缩短晶化时间，从而减少SAPO‑34分子筛的生产成本，提高生产效率。

一种低温氨分解催化剂及其制备方法与应用

本发明公开了一种低温高效氨分解催化剂，包括载体和活性成分，所述载体为SBA‑15/G，所述活性成分为镍；制备方法，包括如下步骤：采用简单的机械混合法将Ni(OH) 2 与SBA‑15/G复合载体混合；然后在氨气气氛下焙烧得到Ni/SBA‑15/G负载型催化材料，制备材料在低温下的氨分解活性高于目前大多数Ni基催化剂，且该方法制备工艺简单、成本低，在氨分解反应中表现出较高的催化活性和稳定性。

Zsm-23 분자체 및 이의 제조 방법

본 발명은 ZSM-23 제올라이트 및 이를 제조하는 방법 및 이의 용도를 개시한다. 상기 ZSM-23 제올라이트의 총 산량이 0.05-0.25 mmol/g, 바람직하게는 0.06-0.22 mmol/g, 더 바람직하게는 0.06-0.20 mmol/g이고; 상기 ZSM-23 제올라이트의 강산 함량은 총 산량의 5-33%, 바람직하게는 7-33%, 더 바람직하게는 9-33%, 또는 더 바람직하게는 7-31%, 보다 더 바람직하게는 10-28%이고; 여기서 강산은 NH3 온도 프로그램 탈착(NH3-TPD)에서 탈착 온도가 350°C 이상인 산을 의미한다. 상기 ZSM-23 제올라이트는 강산 함량이 낮고 ZSM-23 제올라이트의 제조 방법이 간단하다.

AgCu SINGLE-ATOM ALLOY CATALYST FOR ELECTROCATALYTIC CO2 REDUCTION

Disclosed is a catalyst for producing a multicarbon product from CO2, comprising a copper (Cu) substrate having at least one silver copper (AgCu) single-atom alloy (SAA), and silver (Ag) nanoparticles (NPs) on the Cu substrate or on the AgCu SAA, wherein the AgCu SAA comprises at least one single Ag atom dispersed into a surface of the Cu substrate, and the Ag nanoparticles comprise Ag-Ag bonds between the Ag nanoparticles.

Process for nh3 reforming

The present invention relates to a process for NH3 reforming, the process comprising (i) providing a reactor containing an NH3-reforming catalyst C1 comprising a metal M1 selected from the group consisting of groups 6 to 11 of the periodic table, including mixtures of two or more thereof; (ii) preparing a feed gas stream F1 containing NH3; (iii) feeding F1 into the reactor and contacting F1 with C1, wherein the reactor has a temperature of 100 °C or more; obtaining a product gas stream P1 comprising H2O, and an NH3-reforming catalyst C2; wherein feeding according to (ii) is started at a point in time t1; wherein at a point in time t2 the H2O(P1) : H2O(F1) molar ratio of H2O in P1 to H2O in F1 is greater than 1:1, wherein the difference between t2 and t1 is in the range of from 5 s to 10 days.

Sapo-34 molecular sieve with small crystal size and a hollow structure rapidly synthesized by using waste mto catalyst and method for preparation thereof

The present invention provides a SAPO-34 molecular sieve with small crystal size and a hollow structure rapidly synthesized from a waste MTO catalyst and a method for preparation thereof. The method comprises of the following steps: calcining a waste MTO catalyst fine powder; mixing it with an inorganic acid solution to obtain a mixed solution; adding an organic amine and a phosphorus source to the mixed solution, and stirring it to obtain an initial gel mixture for SAPO-34 molecular sieve; crystallizing the initial gel mixture, and then drying the resultant to obtain a raw SAPO-34 molecular sieve powder; and calcining the raw powder obtained to obtain the SAPO-34 molecular sieve with small crystal size and a hollow structure. According to the present invention, the amount of the template may be reduced without additional silicon and aluminum sources, while the crystallization time may be shortened, so that the production cost of SAPO-34 molecular sieve may be reduced and the production efficiency may be improved.

Catalyst compositions and methods of preparation and use thereof

Method of manufacturing styrene

A process of manufacturing styrene at atmospheric pressure with high selectivity (in the range of 91% to 96%) to styrene comprising: providing gaseous phenylacetylene; providing gaseous hydrogen; providing a cerium bimetallic catalyst comprising one of Ni-5% NbCe and Ni-10% NbCe; reducing the cerium bimetallic catalyst with hydrogen at 500° C. for about 2 hours; reacting the phenylacetylene with the hydrogen in the presence of the cerium bimetallic catalyst at a temperature of 300° C.; and thereby obtaining an end product comprising a styrene fraction of about 54% to 71% of the end product and a waste fraction. The catalyst is found to be stable for about 5 cycles of manufacturing styrene without losing selectivity to styrene and without reduced conversion rate.

アンモニア合成用触媒、及びアンモニアの製造方法

니켈 산화물을 물리적으로 혼합한 복합 촉매 및 그 제조 방법

메탄의 탈수소 방향족화 반응에 사용되는 복합 촉매로서, 다공성의 담지체(support) 및 상기 담지체에 담지되어 있는 전이금속 산화물의 촉매를 포함하는 담지형 촉매; 및 상기 담지형 촉매에 물리적으로 분산되어 있는 니켈 산화물(NiO);을 포함하는 유리형 금속 산화물 촉매를 포함하는 것인 복합 촉매 및 그 제조 방법에 관한 것이다.

A method for synthesis of carbon-silica-metal composite and combination thereof

The present invention is a facile and template based synthesis method for carbon-5 silica xerogel or carbon-silica aerogel type composites with uniformly distributed metal or metal oxide nanoparticles embedded inside their structure. The method gives high yield with almost all the synthesized metal or metal oxide nanoparticles loaded into the carbon-silica xerogel or carbon-silica aerogel composite structure by in-situ one-pot synthesis procedure. Embedded metal or metal-oxide 10 nanoparticles are three dimensionally covered by carbon coating. This method can also be used to produce carbon-silica xerogel or carbon-silica aerogel composite template based novel hollow granular shell carbon xerogel or hollow granular shell carbon aerogel with highest specific surface area. This method can also be scaled to large amount for various products through one line of synthesis process, 15 showing the potential for industrial scale prospects.

Process configurations for enhancing light olefin selectivity by steam catalytic cracking of heavy feedstock

A process for upgrading a hydrocarbon feed to produce light olefins, includes contacting the hydrocarbon feed with steam in the presence of a cracking catalyst in a steam catalytic cracking reactor at reaction conditions sufficient to cause at least a portion of the hydrocarbons in the hydrocarbon feed to undergo one or more cracking reactions to produce a steam catalytic cracking effluent comprising ethylene, propylene, or both, wherein the process is capable of being transitioned between an ethylene-selective mode and a propylene-selective mode; determining whether to produce ethylene or propylene; when producing ethylene, then operating the process in ethylene-selective mode comprises producing more ethylene than propylene; or when producing propylene, then operating the process in propylene-selective mode comprises producing more propylene than ethylene.

Hierarchically ordered crystalline microporous materials with long-range mesoporous order having lamellar symmetry

A composition of matter is provided comprising hierarchically ordered crystalline microporous material having well-defined long-range mesoporous ordering of lamellar symmetry. The composition possesses mesopores having walls of crystalline microporous material and a mass of mesostructure between mesopores of crystalline microporous material. Long-range ordering is defined by presence of secondary peaks in an X-ray diffraction (XRD) pattern and/or lamellar symmetry observable by microscopy.

Method for manufacture of low silica MFI framework zeolite in the presence of ODSO

The present disclosure is directed to a method of manufacture of low silica zeolite having MFI framework, such as ZSM-5. A sol-gel formulation includes a water-soluble fraction of ODSO as an additional component. The resulting products include low silica zeolite having MFI framework, whereas in the absence of the ODSO, the resulting products are zeolite impurities including analcime.

Long-lifetime sapo-34 catalyst prepared from mto waste catalyst as raw material and method for preparation thereof

The present invention provides a long-lifetime SAPO-34 catalyst prepared from waste MTO catalyst as a raw material and a preparation method thereof. The method comprises the following steps: mixing the waste MTO catalyst fine powder with water; adding a phosphoric acid and an organic amine and stirring to obtain an initial gel mixture for SAPO-34 molecular sieve; crystallizing the initial gel mixture and then at least drying it to obtain a raw SAPO-34 molecular sieve powder; calcining the raw molecular sieve powder to obtain a SAPO-34 molecular sieve powder; then mixing it with a binder and a matrix carrier in water with stirring, and then aging it; and molding and then calcining it to obtain the long-lifetime SAPO-34 catalyst. The preparation method of the present invention uses MTO waste catalyst as a raw material to synthesize SAPO-34 molecular sieve in situ within a short time, and to prepare MTO catalysts having a long life and high selectivity for light olefins.

MOLECULAR SIEVE SSZ-117x WITH HIGH ACIDITY

A novel synthetic crystalline aluminogermanosilicate molecular sieve material, designated SSZ-117x, is provided which exhibits increased acidity. The SSZ-117x can be synthesized using N,N,N,3,5-pentamethyladamantan-1-ammonium cations as a structure directing agent. The synthesis employs a boron pathway to achieve increased acid sites. The SSZ-117x of increased acidity may be used in organic compound conversion reactions and/or sorptive processes.

Molecular sieve ssz-117x with high acidity

A novel synthetic crystalline aluminogermanosilicate molecular sieve material, designated SSZ-117x, is provided which exhibits increased acidity. The SSZ-117x can be synthesized using N,N,N,3,5-pentamethyladamantan-l-ammonium cations as a structure directing agent. The synthesis employs a boron pathway to achieve increased acid sites. The SSZ-117x of increased acidity may be used in organic compound conversion reactions and/or sorptive processes.

Hydrocarbon reforming catalyst and hydrocarbon reforming apparatus

A hydrocarbon reforming catalyst for producing a synthesis gas containing hydrogen and carbon monoxide from a hydrocarbon-based gas, the hydrocarbon reforming catalyst containing a complex oxide having a perovskite structure including at least Ba, Zr, and Ru; and a hydrocarbon reforming apparatus that includes the hydrocarbon-reforming catalyst.

Molecular sieve boron ssz-121, its synthesis and use

A novel synthetic crystalline molecular sieve material, designated boron SSZ-121 is provided. The boron SSZ-121 can be synthesized using 1,3-bis(1-adamantyl)imidazohum cations as a structure directing agent. The boron SSZ-121 may be used in organic compound conversion reactions and/or sorptive processes.

Optimization of Photocatalytic Hydrogen Generation Using Aqueous Bio-Alcohols and Plasmonic Metals Deposited on Semiconductor Composite Nanofibers

The present invention combines the advantages of fabrication of semiconductor heterostructure (Ag3PO4—WO3) with plasmonic metals (Pt and Ag) with optical interference to optimize the visible light photo response of plasmonic metals deposited semiconductor (Pt—Ag/Ag3PO4—WO3) for visible light assisted H2 generation utilizing the aqueous bio-alcohols. Crystalline Ag3PO4 and WO3 nanofibers were synthesized by microwave and electrospinning methods. Three different WO3 nanofibers composition (5, 10 and 15 wt. %) were used to obtain Ag3PO4/WO3 nanocomposite heterostructures, which are effective visible light active photo catalysts. Further, a simple, enviro-friendly, and cost-effective biogenic synthesis method have been achieved using Salvia officinalis extract to decorate Pt and Ag metal nanoparticles on the surface of Ag3PO4—WO3 composites. Presence of bioactive agents in the extract are responsible for the Pt and Ag3PO4 reduction and for prevention of the Pt nanoparticles from aggregation in aqueous medium.

Optimization of photocatalytic hydrogen generation using aqueous bio-alcohols and plasmonic metals deposited on semiconductor composite nanofibers

The present invention combines the advantages of fabrication of semiconductor heterostructure (Ag3PO4—WO3) with plasmonic metals (Pt and Ag) with optical interference to optimize the visible light photo response of plasmonic metals deposited semiconductor (Pt—Ag/Ag3PO4—WO3) for visible light assisted H2 generation utilizing the aqueous bio-alcohols. Crystalline Ag3PO4 and WO3 nanofibers were synthesized by microwave and electrospinning methods. Three different WO3 nanofibers composition (5, 10 and 15 wt. %) were used to obtain Ag3PO4/WO3 nanocomposite heterostructures, which are effective visible light active photo catalysts. Further, a simple, enviro-friendly, and cost-effective biogenic synthesis method have been achieved using Salvia officinalis extract to decorate Pt and Ag metal nanoparticles on the surface of Ag3PO4—WO3 composites. Presence of bioactive agents in the extract are responsible for the Pt and Ag3PO4 reduction and for prevention of the Pt nanoparticles from aggregation in aqueous medium.

Hierarchically ordered crystalline microporous materials with long-range mesoporous order having lamellar symmetry

A composition of matter is provided comprising hierarchically ordered crystalline microporous material having well-defined long-range mesoporous ordering of lamellar symmetry. The composition possesses mesopores having walls of crystalline microporous material and a mass of mesostructure between mesopores of crystalline microporous material. Long-range ordering is defined by presence of secondary peaks in an X-ray diffraction (XRD) pattern and/or lamellar symmetry observable by microscopy.

Ｚｓｍ－２３分子篩およびその調製方法

ＺＳＭ－２３分子篩およびその調製方法を提供する。ＺＳＭ－２３分子篩の全酸量は０．０５～０．２５ｍｍｏｌ／ｇであり、強酸含有量が全酸量の５～３３％であり、強酸はＮＨ３昇温脱離における対応する脱離温度が３５０℃超である酸を指す。前記調製方法は、（１）テンプレート剤、ならびに非晶質シリカ－アルミナおよび／または非晶質シリカ－アルミナ前駆体を含む混合溶液を調製する工程、（２）工程（１）の混合溶液にアルカリ源とシリコン源とを添加する工程、および、（３）工程（２）で得られた物質を結晶化し、任意で濾過、洗浄、乾燥し、任意で焼成し、ＺＳＭ－２３分子篩を得る工程、を含む。前記方法は簡単であり、得られるＺＳＭ－２３分子篩は強酸含有量が低く、かつ、良好な熱安定性および水熱安定性を同時に有し、優れた吸着剤または触媒材料として使用することができる。

Synthetic methods for the modification of clay-based supports and their applications in heterogeneous catalysis

A method of manufacturing a clay-supported catalyst is provided. The method includes adding halloysite nanotubular (HNT) in water to form an HNT-water mixture, adding Ni precursor salt in water to form a Ni salt solution, adding the Ni salt solution to the HNT-water mixture to form a Ni-HNT mixture, and heating the Ni-HNT mixture at a predetermined temperature for a predetermined time to form a Ni-HNT catalyst. The HNT serves as a catalyst support.

Catalytic cracking catalyst and process for preparing the same

A catalytic cracking catalyst contains 10-70 wt % of a cracking active component, 10-60 wt % of a binder and 10-70 wt % of a clay. The cracking active component has 5-100 wt % of a first Y-type molecular sieve and 0-95 wt % of a second molecular sieve. The first Y-type molecular sieve is a modified molecular sieve based on the crystal modification of kaolin and has the sodium oxide content of less than 2 wt %. The process for preparing the catalyst includes the steps of vigorously mixing and stirring a cracking active component comprising a modified molecular sieve based on the crystal modification of kaolin, a binder and a clay with water; spray drying; washing; filtering; and drying. The catalyst is used in the catalytic cracking reaction of heavy oils, and has a good coke selectivity, as well as a higher heavy oil conversion rate.

Zsm-23 zeolite and a preparation process and use thereof

Provided are a ZSM-23 molecular sieve and a preparation method therefor. The total acid content of the ZSM-23 molecular sieve is 0.05-0.25 mmol/g, and the strong acid content accounts for 5-33% of the total acid content, strong acid referring to acid having a corresponding desorption temperature above 350°C in NH3 programmed-temperature desorption. The preparation method comprises: (1) preparing a mixed solution containing a templating agent and amorphous silica-alumina and/or an amorphous silica-alumina precursor; (2) adding an alkali source and a silicon source to the mixed solution of step (1); and (3) crystallizing, optionally filtering and washing, drying and optionally calcining the material obtained in step (2) so as to obtain a ZSM-23 molecular sieve. Said method is simple, and the obtained ZSM-23 molecular sieve has low strong acid content, and at the same time has good thermal stability and hydrothermal stability, and may be used as an excellent adsorbent or catalytic material.

Oxynitride-hydride, metal carrier containing oxynitride-hydride, and ammonia synthesis catalyst

Mechanically stable vpo catalyst and process for the production thereof

The invention relates to a VPO catalyst in the form of a shaped body for the oxidation of hydrocarbons with molecular oxygen, especially for the oxidation of butane to maleic anhydride with molecular oxygen, characterized in that the VPO catalyst contains ZnO. The invention further relates to a process for producing a VPO catalyst of the invention in the form of a shaped body, comprising the steps of: a) providing a reaction mixture that comprises a V(V) compound, a P(V) compound, optionally a Mo compound, a reductant and a solvent, b) reducing the V(V) compound with the reductant at least in part to vanadyl hydrogen phosphate so as to obtain a suspension of an intermediate product, c) filtering the suspension of an intermediate product from step b) so as to obtain an intermediate product, d) drying and calcining the intermediate product at a temperature of max. 300°C so as to obtain a dried intermediate product, d1) optionally mixing the dried intermediate product with graphite and/or d2) compacting the dried intermediate product, e) shaping the intermediate product from steps d) or d1) and/or d2) into particles, f) activating the particles at a temperature above 200°C, in a gas mixture consisting of nitrogen, hydrogen and water vapour, characterized in that ZnO is added after step c), but before step f).

Herstellung von Kohlenstoff enthaltenden kristallinen Titanoxidaerogelen mit großer Oberfläche und großem Porenvolumen

Die Erfindung betrifft eine Sol-Gel basierende Syntheseroute zur Herstellung eines in CO2überkritisch getrockneten Aerogel, welches Titanoxid und Kohlenstoff enthält (Ti ca. 24at.%, C ca. 11at.% und einem Stoffmengenverhältnis von C zu Ti im Bereich von 0,16 bis 0,8) sowie entsprechende Titanoxidaerogele.

Production d'aérogels d’oxyde de titane cristallin contenant du carbone et présentant une grande surface spécifique et un grand volume poreux

La présente invention concerne une voie de synthèse à base de solution-gélification (sol-gel) permettant de produire un aérogel séché de manière supercritique dans du CO2 et contenant de l'oxyde de titane et du carbone (Ti représentant environ 24 % at., C représentant environ 11 % at., et avec un rapport molaire de C sur Ti dans la plage comprise entre 0,16 et 0,8), ainsi que les oxydes de titane correspondants.

Molecular sieve ssz-124, its synthesis and use

This disclosure relates to an aluminogermanosilicate molecular sieve, designated as SSZ-124, methods for making the same, and uses thereof.

Molecular sieve ssz-124, its synthesis and use

This disclosure relates to an aluminogermanosilicate molecular sieve, designated as SSZ-124, methods for making the same, and uses thereof.

メタン化触媒の処理方法及びメタンの製造方法並びにメタン化触媒

【課題】触媒性能の低下を抑制することができるメタン化触媒の処理方法を提供することを主目的とする。 【解決手段】本発明のメタン化触媒の処理方法は、ニッケルを触媒成分として含むメタン化触媒が収容された反応炉に酸素を含む酸素ガスを供給することで上記メタン化触媒を熱処理することにより、上記ニッケルを酸化する酸化工程を備え、上記酸化工程において、上記酸素ガスを酸素が０．０２１３ｍｍｏｌ－Ｏ ２ ／ｓｅｃ・ｇ－ｃａｔ．～０．０６３８ｍｍｏｌ－Ｏ ２ ／ｓｅｃ・ｇ－ｃａｔ．の範囲内の供給速度でメタン化触媒１ｇに供給されるように上記反応炉に供給し、上記酸素ガスを上記反応炉に供給することで上記メタン化触媒を熱処理する時間を３０ｍｉｎ以上とすることを特徴とする。 【選択図】図１

Scm-34 molecular sieve, preparation method therefor and use thereof

A SCM-34 molecular sieve, preparation method therefor and use thereof are provided. The SCM-34 molecular sieve contains aluminum, phosphorus, oxygen and optionally silicon. In the XRD diffraction data of the molecular sieve, a 2θ degree of the strongest peak within the range of 5-50° is 7.59±0.2. The SCM-34 molecular sieve has a new skeleton structure and can be used to prepare a metal-containing AFI type molecular sieve or an SAPO-17 molecular sieve.

Scm-34 molecular sieve, preparation method therefor and use thereof

Ｓｃｍ－３４分子篩、その調製方法及び使用

本発明は、ＳＣＭ－３４分子篩、その調製方法及び使用を開示する。前記ＳＣＭ－３４分子篩は、アルミニウム、リン、酸素及び任意選択のケイ素を含み、前記分子篩のＸＲＤ回折データにおいて、２θ角度の５～５０°範囲内の最も強いピークの２θ角度は７．５９±０．２である。当該ＳＣＭ－３４分子篩は新たな骨格構造を有し、金属を含有するＡＦＩ型分子篩またはＳＡＰＯ－１７分子篩を調製するために使用することができ、化学工業生産における触媒に対する様々な需要に見合う。

A process for the activation of n2o in the presence of a zeolitic material having the aei-type framework structure

The present invention relates to a process for the activation of N2O, the process comprising (i) providing a zeolitic material comprising one or more transition metals, wherein the zeolitic material has the AEI-type framework structure, wherein the framework structure of the zeolitic material comprises SiO2 and Al2O3, and wherein the 29Si MAS NMR of the zeolitic material comprises a specific first peak (P1), a specific second peak (P2), a specific third peak (P3), and optionally a specific fourth peak (P4), wherein the integration of the first, second, third, and optional fourth peaks in the 29 Si MAS NMR of the zeolitic material offers a specific ratio of the integration values P1 : P2 : P3 : P4, wherein the 29 Si MAS NMR of the zeolitic material is determined on the zeolitic material which is devoid of transition metals; (ii) providing a gas stream comprising N 2 O; and (iii) contacting the gas stream with the zeolitic material at a temperature in the range of from 300 to 600 °C.

Tiny transition metal incorporated catalysts for gasoline engine exhaust gas treatments

A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; a first catalytic region comprising a first platinum group metal (PGM) component and a first transition metal component, wherein the first PGM component comprises platinum (Pt), and the first transition metal component is Fe or Cu, and wherein the molar ratio of Pt and the first transition metal is from 0.2 to 10.0.

HERSTELLUNG VON KOHLENSTOFF ENTHALTENDEN KRISTALLINEN TITANOXIDAEROGELEN MIT GROßER OBERFLÄCHE UND GROßEM PORENVOLUMEN

Die Erfindung betrifft eine Sol-Gel basierende Syntheseroute zur Herstellung eines in CO 2 überkritisch getrockneten Aerogel, welches Titanoxid und Kohlenstoff enthält (Ti ca. 24at.%, C ca. 11at.% und einem Stoffmengenverhältnis von C zu Ti im Bereich von 0,16 bis 0,8) sowie entsprechende Titanoxidaerogele.

Vpo-katalysator mit verbesserter selektivität und stabilität sowie verfahren zu dessen herstellung

Die Erfindung betrifft einen VPO-Katalysator in Form eines Formkörpers zur Oxidation von Kohlenwasserstoffen mit molekularem Sauerstoff, insbesondere zur Oxidation von Butan zu Maleinsäureanhydrid mit molekularem Sauerstoff, wobei der VPO-Katalysator zwischen 0,05 Gew.-% bis 7,0 Gew.-% Zn enthält, welches teilweise als ZnO vorliegt und bei in Transmission durchgeführter Infrarotspektroskopie eine erste Absorptionsbande mit einem Maximum zwischen 790 cm-1 bis 810 cm-1 und eventuell eine zweite Absorptionsbande mit einem Maximum zwischen 820 cm-1 bis 840 cm-1 aufweist, dadurch gekennzeichnet, dass nur die erste Absorptionsbande vorhanden ist oder die Stärke der ersten Absorptionsbande größer ist als die Stärke der zweiten Absorptionsbande. Die Erfindung betrifft des Weiteren ein Verfahren zur Herstellung eines erfindungsgemäßen VPO-Katalysators, umfassend die Schritte: a) Herstellen einer Katalysatorvorstufe enthaltend Vanadylhydrogenphosphat, b) Formen der Katalysatorvorstufe zu einem Formkörper. c) Aktivieren der Formkörper, um eine VPO-Phase auszubilden, dadurch gekennzeichnet, dass nach Schritt a) ZnO mit der Katalysatorvorstufe vermischt wird.

Tiny transition metal incorporated catalysts for gasoline engine exhaust gas treatments

A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; a first catalytic region comprising a first platinum group metal (PGM) component and a first transition metal component, wherein the first PGM component comprises platinum (Pt), and the first transition metal component is Fe or Cu, and wherein the molar ratio of Pt and the first transition metal is from 0.2 to 10.0.

Exhaust gas purifying catalyst composition and exhaust gas purifying catalyst

An object of the present invention is to provide an exhaust gas purifying catalyst composition and an exhaust gas purifying catalyst, each of which has improved exhaust gas purification performance, and the present invention provides an exhaust gas purifying catalyst composition containing a Ce-based oxide particle, a Ce—Zr-based composite oxide particle, an Al-based oxide particle, and a noble metal element, wherein an amount of Ce in terms of CeO2 in the Ce-based oxide particle is 90% by mass or more based on a mass of the Ce-based oxide particle, wherein an amount of Ce in terms of CeO2 in the Ce—Zr-based composite oxide particle is 5% by mass or more and 90% by mass or less based on a mass of the Ce—Zr-based composite oxide particle, wherein the Ce-based oxide particle has an average particle size of 0.10 μm or more and 15 μm or less, and wherein an amount of the Ce-based oxide particle in the exhaust gas purifying catalyst composition is 2.0% by mass or more and 30% by mass or less based on a mass of the exhaust gas purifying catalyst composition.

Method for preparing water-gas shift catalysts, catalysts, and method for reducing carbon monoxide content

The present invention relates to HTS catalysts used in hydrogen or synthesis gas production units, whether in steam reforming, autothermal reforming, dry reforming or gasification processes, that are chromium-free and comprise iron oxide, containing levels of platinum between 0.1 and 0.4% m/m, promoted by sodium levels of between 0.1 and 0.3% m/m, and optionally aluminium levels of between 5.0 and 6.0% m/m inserted into the crystal lattice of an iron oxide having a hematite crystal structure (Fe2O3), thereby combining high activity with excellent resistance to deactivation by exposure to high temperatures. In a second aspect, the present invention provides a method for converting carbon monoxide by bringing said catalyst into contact with a stream of synthesis gas, in which the maximum temperature of the bed can be limited by injecting water or steam together with the CO-containing gas feed at the inlet of the reactor.

Catalyst system for preparing terephthalic acid

A catalyst system for preparing terephthalic acid including a first complexation of a manganese salt and a first multidentate ligand; and a second complexation of a cobalt salt and a second multidentate ligand, wherein the first multidentate ligand is a tridentate ligand, tetradentate ligand, pentadentate ligand, or hexadentate ligand, and wherein the second multidentate ligand is a tridentate ligand, tetradentate ligand, pentadentate ligand, or hexadentate ligand.

Zsm-23 molecular sieve and preparation method therefor

The present invention discloses a ZSM-23 zeolite and a process for preparing the same and use thereof. The total acid amount of said ZSM-23 zeolite is 0.05-0.25 mmol/g, preferably, 0.06-0.22 mmol/g, more preferably, 0.06-0.20 mmol/g; the strong acid content of said ZSM-23 zeolite is 5-33%, preferably, 7-33%, more preferably, 9-33%, or further preferably, 7-31%, further more preferably, 10-28% of the total acid amount; wherein the strong acid refers to an acid having a desorption temperature of 350°C or higher in an NH3 temperature programmed desorption (NH3-TPD). The ZSM-23 zeolite has a low strong acid content, and the preparation process of the ZSM-23 zeolite is simple.

Zsm-23 zeolite and preparation process and use thereof

A ZSM-23 zeolite and a process for preparing the same and use thereof are provided. The total acid amount of the ZSM-23 zeolite is 0.05-0.25 mmol/g, preferably 0.06-0.22 mmol/g, more preferably 0.06-0.20 mmol/g. The strong acid content of the ZSM-23 zeolite is 5-33%, preferably 7-33%, more preferably 9-33%, or further preferably 7-31%, further more preferably 10-28% of the total acid amount. The strong acid refers to an acid having a desorption temperature of 350° C. or higher in an NH3 temperature programmed desorption (NH3-TPD). The ZSM- 23 zeolite has a low strong acid content.

Hierarchically ordered crystalline microporous materials with long-range mesoporous order having hexagonal symmetry

A composition of matter is provided comprising hierarchically ordered crystalline microporous material having well-defined long-range mesoporous ordering of hexagonal symmetry. The composition possesses mesopores having walls of crystalline microporous material and a mass of mesostructure between mesopores of crystalline microporous material. Long-range ordering is defined by presence of secondary peaks in an X-ray diffraction (XRD) pattern and/or hexagonal symmetry observable by microscopy.

Processes of producing mesoporous beta zeolites

A process of producing a mesoporous beta zeolite includes mixing a crystalline beta zeolite with one or more solvents, cetyltrimethylammonium bromide, and metal hydroxide to produce a solution, heating the solution at a temperature of from 50° C. to 150° C. to convert the crystalline beta zeolite to a non-crystalline material with reduced silica content relative to the crystalline beta zeolite, cooling the solution to a temperature of from 25° C. to 40° C., adjusting the pH of the solution to from 8 to 10 by adding an acid, and aging the solution at a temperature of from 50° C. to 150° C. for a time period sufficient to crystalize the non-crystalline material to produce beta zeolite particles.

Tiny transition metal incorporated catalysts for gasoline engine exhaust gas treatments

A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; a first catalytic region comprising a first platinum group metal (PGM) component and a first transition metal component, wherein the first PGM component comprises platinum (Pt), and the first transition metal component is Fe or Cu, and wherein the molar ratio of Pt and the first transition metal is from 0.2 to 10.0.

Composite catalyst physically mixed with nickel oxide and method for manufacturing the same

Provided is a composite catalyst used in a dehydro-aromatization reaction of methane, the composite catalyst including a glasslike metal oxide catalyst which includes a supported catalyst including a porous support and a catalyst of a transition metal oxide supported on the support, and a nickel oxide (NiO) physically dispersed in the supported catalyst.

Copper-based catalyst for reverse water gas shift reaction including gas-permeable amorphous shell formed by strong metal-support interaction

The present disclosure relates to a copper-based catalyst for reverse water gas reaction including a gas-permeable amorphous shell formed by strong metal-support interaction. The inventors of the present disclosure synthesized a copper-ceria solid solution and then adjusted the surface defect sites of the solid solution, thereby producing a catalyst including enhanced surface defect sites and having a gas-permeable amorphous shell structure formed on each copper particle. When the catalyst production method according to the present disclosure is used, it is possible to synthesize a catalyst including a structure consisting only of very small Cu particles encapsulated by surface shells and Cu sites incorporated into the CeO2 lattice structure. When the synthesized catalyst is used in the RWGS reaction, it exhibits excellent low-temperature activity, high activity and durability, compared to conventional precious metal catalysts. In addition, even when the catalyst of the present disclosure is supported on a monolith and used to perform the RWGS reaction on a bench scale, it exhibits high activity, CO2 conversion and durability, which are comparable with those in the laboratory scale, indicating that it may be applied to an actual process.

Msect-4 molecular sieves with off and eri topologies, preparation method therefor, and applications thereof

The present disclosure provides msect-4 molecular sieves with OFF and ERI topologies, a preparation method therefor, and applications thereof. An eight-membered ring small pore molecular sieve used as a raw material is dispersed in an aqueous phase. Following that, caustic potash, an aluminum source, and an organic structure-directing agent (OSDA) are added. The pH value is then adjusted to be greater than 10, and a silicon source is introduced to attain the desired silicon-aluminum ratio, followed by stirring reaction, aging, crystallization, filtration, washing, ammonia exchange reaction, drying, and calcination. The msect-4 molecular sieves with OFF and ERI topologies, the preparation method therefor, and applications exhibit excellent hydrothermal stability, a plurality of adsorption sites exposed by a regular bone-like structure, and a large specific surface area. Consequently, this molecular sieves find applicability across various technical fields including selective catalytic reduction, passive adsorption, and catalytic cracking, and has broad application prospects.

MSECT-4 molecular sieves with off and ERI topologies, preparation method therefor, and applications thereof

The present disclosure provides msect-4 molecular sieves with OFF and ERI topologies, a preparation method therefor, and applications thereof. An eight-membered ring small pore molecular sieve used as a raw material is dispersed in an aqueous phase. Following that, caustic potash, an aluminum source, and an organic structure-directing agent (OSDA) are added. The pH value is then adjusted to be greater than 10, and a silicon source is introduced to attain the desired silicon-aluminum ratio, followed by stirring reaction, aging, crystallization, filtration, washing, ammonia exchange reaction, drying, and calcination. The msect-4 molecular sieves with OFF and ERI topologies, the preparation method therefor, and applications exhibit excellent hydrothermal stability, a plurality of adsorption sites exposed by a regular bone-like structure, and a large specific surface area. Consequently, this molecular sieves find applicability across various technical fields including selective catalytic reduction, passive adsorption, and catalytic cracking, and has broad application prospects.

Molecular sieve boron ssz-121, its synthesis and use

A novel synthetic crystalline molecular sieve material, designated boron SSZ-121 is provided. The boron SSZ-121 can be synthesized using 1,3-bis(1-adamantyl)imidazolium cations as a structure directing agent. The boron SSZ-121 may be used in organic compound conversion reactions and/or sorptive processes.

Porous alumina and catalyst

Method for manufacture of low silica mfi framework zeolite in the presence of odso

The present disclosure is directed to a method of manufacture of low silica zeolite having MFI framework, such as ZSM-5. A sol-gel formulation includes a water-soluble fraction of ODSO as an additional component. The resulting products include low silica zeolite having MFI framework, whereas in the absence of the ODSO, the resulting products are zeolite impurities including analcime.

니켈 산화물을 물리적으로 혼합한 복합 촉매 및 그 제조 방법

메탄의 탈수소 방향족화 반응에 사용되는 복합 촉매로서, 다공성의 담지체(support) 및 상기 담지체에 담지되어 있는 전이금속 산화물의 촉매를 포함하는 담지형 촉매; 및 상기 담지형 촉매에 물리적으로 분산되어 있는 니켈 산화물(NiO);을 포함하는 유리형 금속 산화물 촉매를 포함하는 것인 복합 촉매 및 그 제조 방법에 관한 것이다.

니켈 산화물을 물리적으로 혼합한 복합 촉매 및 그 제조 방법

메탄의 탈수소 방향족화 반응에 사용되는 복합 촉매로서, 다공성의 담지체(support) 및 상기 담지체에 담지되어 있는 전이금속 산화물의 촉매를 포함하는 담지형 촉매; 및 상기 담지형 촉매에 물리적으로 분산되어 있는 니켈 산화물(NiO);을 포함하는 유리형 금속 산화물 촉매를 포함하는 것인 복합 촉매 및 그 제조 방법에 관한 것이다.

이산화탄소로부터 메틸 아세테이트를 합성하기 위한 탠덤 촉매 및 이의 제조 방법, 이를 이용한 메틸 아세테이트의 제조 방법

이산화탄소로부터 메틸 아세테이트를 합성하기 위한 탠덤 촉매 및 이의 제조 방법, 이를 이용한 메틸 아세테이트의 제조방법을 개시한다. 본 발명의 탠덤 촉매는 나노 페리에라이트(N-FER) 제올라이트를 포함하는 제1 촉매, 및 복합금속산화물 코어 및 상기 복합금속산화물 코어의 표면을 둘러싸는 실리카 쉘을 포함하는 코어-쉘 구조의 제2 촉매를 포함한다.

碳氢化合物改性催化剂以及碳氢化合物改性装置

本发明提供一种碳氢化合物改性催化剂以及碳氢化合物改性装置。碳氢化合物改性催化剂是用于从碳氢化合物类气体生成包含氢和一氧化碳的合成气体的催化剂，包含至少由Ba、Zr以及Ru构成钙钛矿构造的复合氧化物，Ru相对于Ba的摩尔比为0.21以上且0.41以下。碳氢化合物改性装置(100)具备：管(1)，流通至少包含碳氢化合物的被处理气体；加热部(2)，对在管(1)中流通的被处理气体进行加热；和催化剂(3)，配置在管(1)的内部的与被处理气体接触的位置，包含至少由Ba、Zr以及Ru构成钙钛矿构造的复合氧化物，Ru相对于Ba的摩尔比为0.21以上且0.41以下。

A catalyst composition and processes thereof

The present disclosure provides a composition comprising: (a) 1 to 20% (w/w) indium; (b) 40 to 60% (w/w) of iron oxide; (c) 1 to 5% (w/w) of potassium; and (d) 35 to 40% (w/w) alumina. The present disclosure further provides a convenient process for 5 preparing the composition. The composition of the present disclosure is a hydrogenation catalyst. Furthermore, the present disclosure provides a process for hydrogenation of carbon dioxide to higher alcohols.

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Exhaust gas purifying catalyst composition and exhaust gas purifying catalyst

An object of the present invention is to provide an exhaust gas purifying catalyst composition and an exhaust gas purifying catalyst, each of which has improved exhaust gas purification performance, and the present invention provides an exhaust gas purifying catalyst composition containing a Ce-based oxide particle, a Ce—Zr-based composite oxide particle, and a noble metal element, wherein the Ce-based oxide particle contains at least one type of additional element selected from Al, Mg, La, Pr, Y, and Nd, and wherein an amount of the at least one type of additional element in terms of oxide in the Ce-based oxide particle is 0.1% by mass or more and 20% by mass or less based on a mass of the Ce-based oxide particle.

排ガス浄化用触媒組成物及び排ガス浄化用触媒

本発明は、排ガス浄化性能が向上した排ガス浄化用触媒組成物及び排ガス浄化用触媒を提供することを目的とし、Ｃｅ系酸化物粒子と、Ｃｅ－Ｚｒ系複合酸化物粒子と、貴金属元素とを含む排ガス浄化用触媒組成物であって、前記Ｃｅ系酸化物粒子におけるＣｅのＣｅＯ２換算量が、前記Ｃｅ系酸化物粒子の質量を基準として、８０質量％以上であり、前記Ｃｅ－Ｚｒ系複合酸化物粒子におけるＣｅのＣｅＯ２換算量が、前記Ｃｅ－Ｚｒ系複合酸化物粒子の質量を基準として、５質量％以上９０質量％以下であり、前記Ｃｅ系酸化物粒子におけるＣｅＯ２の結晶子径が、１０ｎｍ以上である、排ガス浄化用触媒組成物を提供する。

排ガス浄化用触媒組成物及び排ガス浄化用触媒

本発明は、排ガス浄化性能が向上した排ガス浄化用触媒組成物及び排ガス浄化用触媒を提供することを目的とし、Ｃｅ系酸化物粒子と、Ｃｅ－Ｚｒ系複合酸化物粒子と、貴金属元素とを含む排ガス浄化用触媒組成物であって、前記Ｃｅ系酸化物粒子が、Ａｌ、Ｍｇ、Ｌａ、Ｐｒ、Ｙ及びＮｄから選択される少なくとも１種の追加元素を含み、前記Ｃｅ系酸化物粒子における前記少なくとも１種の追加元素の酸化物換算量が、前記Ｃｅ系酸化物粒子の質量を基準として、０．１質量％以上２０質量％以下である、排ガス浄化用触媒組成物を提供する。

Catalyst composition for exhaust gas purification and catalyst for exhaust gas purification

An object of the present invention is to provide an exhaust gas purifying catalyst composition and an exhaust gas purifying catalyst, each of which has improved exhaust gas purification performance, and the present invention provides an exhaust gas purifying catalyst composition containing a Ce-based oxide particle, a Ce-Zr-based composite oxide particle, and a noble metal element, wherein an amount of Ce in terms of CeO₂ in the Ce-based oxide particle is 80% by mass or more based on the mass of the Ce-based oxide particle, wherein an amount of Ce in terms of CeO₂ in the Ce-Zr-based composite oxide particle is 5% by mass or more and 90% by mass or less based on the mass of the Ce-Zr-based composite oxide particle, and wherein a crystallite size of CeO₂ in the Ce-based oxide particle is 10 nm or more.

Heteroatom zeolite manufacture using an electrolytic cell

Present invention generally concerns a novel use of electro-assisted synthesis apparatus to manufacture of heteroatom zeolites with good metal incorporation, for instance Sn- zeolites, Ti-zeolites, Zn-zeolites, Fe-zeolites or Al-zeolites with a higher metal load than reached by the current state of the art heteroatom zeolites synthesis method. More particularly, it relates to heteroatom zeolites that are the reaction product of gradual metal incorporation in zeolites during the zeolite synthesis process the metal originating from an in-situ anodic oxidation.

Synthetic methods for the modification of clay-based supports and their applications in heterogeneous catalysis

A method of manufacturing a clay-supported catalyst is provided. The method includes adding halloysite nanotubular (HNT) in water to form an HNT-water mixture, adding Ni precursor salt in water to form a Ni salt solution, adding the Ni salt solution to the HNT-water mixture to form a Ni-HNT mixture, and heating the Ni-HNT mixture at a predetermined temperature for a predetermined time to form a Ni-HNT catalyst. The HNT serves as a catalyst support.

Tandem catalyst for synthesizing methyl acetate from carbon dioxide, method for preparing same, and method for preparing methyl acetate using same

Disclosed are a tandem catalyst for synthesizing methyl acetate from carbon dioxide, a method for preparing the same, and a method for preparing methyl acetate using the same. The tandem catalyst of the present invention includes a first catalyst having a core-shell structure including a composite metal oxide core and a silica shell surrounding a surface of the composite metal oxide core, and a second catalyst including nano-ferrierite (N-FER) zeolite.

Methanation catalyst processing method, methane producing method, and methanation catalyst

Provided is a methanation catalyst processing method capable of suppressing degradation of a catalyst performance. A methanation catalyst processing method of the present disclosure includes oxidizing nickel through a heat treatment of a methanation catalyst by supplying an oxygen gas containing oxygen to a reactor, the reactor housing the methanation catalyst containing the nickel as a catalyst component. In the oxidizing, the oxygen gas is supplied to the reactor such that the oxygen is supplied to 1 g of the methanation catalyst at a supply rate in a range of from 0.0213 mmol-O 2 /sec·g-cat. to 0.0638 mmol-O 2 /sec·g-cat., and a time period of the heat treatment of the methanation catalyst by supplying the oxygen gas to the reactor is set to 30 minutes or more.

甲烷化催化剂的处理方法、甲烷的制造方法和甲烷化催化剂

主要目的是提供能够抑制催化剂性能降低的甲烷化催化剂的处理方法。本发明的甲烷化催化剂的处理方法具备氧化工序，上述氧化工序中，通过向收纳有含有镍作为催化剂成分的甲烷化催化剂的反应炉中，供给含有氧的含氧气体，从而对上述甲烷化催化剂进行热处理，由此将上述镍氧化，并且，以按0.0213～0.0638mmol‑O 2 /sec·g‑cat.的供给速度向1g甲烷化催化剂供给氧的方式，向上述反应炉供给上述含氧气体，并将向上述反应炉供给上述含氧气体而对上述甲烷化催化剂进行热处理的时间设为30分钟以上。

Methanation catalyst processing method, methane producing method, and methanation catalyst

Provided is a methanation catalyst processing method capable of suppressing degradation of a catalyst performance. A methanation catalyst processing method of the present disclosure includes oxidizing nickel through a heat treatment of a methanation catalyst by supplying an oxygen gas containing oxygen to a reactor, the reactor housing the methanation catalyst containing the nickel as a catalyst component. In the oxidizing, the oxygen gas is supplied to the reactor such that the oxygen is supplied to 1 g of the methanation catalyst at a supply rate in a range of from 0.0213 mmol-O 2 /sec·g-cat. to 0.0638 mmol-O 2 /sec·g-cat., and a time period of the heat treatment of the methanation catalyst by supplying the oxygen gas to the reactor is set to 30 minutes or more.

A process for the activation of n2o in the presence of a zeolitic material having the aei-type framework structure

The present invention relates to a process for the activation of N2O, the process comprising (i) providing a zeolitic material comprising one or more transition metals, wherein the zeolitic material has the AEI-type framework structure, wherein the framework structure of the zeolitic material comprises SiO2 and Al2O3, and wherein the 29Si MAS NMR of the zeolitic material comprises a specific first peak (P1), a specific second peak (P2), a specific third peak (P3), and optionally a specific fourth peak (P4), wherein the integration of the first, second, third, and optional fourth peaks in the 29 Si MAS NMR of the zeolitic material offers a specific ratio of the integration values P1 : P2 : P3 : P4, wherein the 29 Si MAS NMR of the zeolitic material is determined on the zeolitic material which is devoid of transition metals; (ii) providing a gas stream comprising N 2 O; and (iii) contacting the gas stream with the zeolitic material at a temperature in the range of from 300 to 600 °C.

Method of forming metal oxide nanostructures on a TiO2—ZnO-buffered substrate

A method of forming TiO2—ZnO nanoparticles coated by a copper (II) complex includes forming a mononuclear copper complex by treating a ligand with Cu2+ ions; and immobilizing the mononuclear copper complex on TiO2—ZnO nanoparticles to obtain the TiO2—ZnO nanoparticle coated by the copper (II) complex. The TiO2—ZnO nanoparticles coated by a copper (II) complex thus produced have improved catalytic effectiveness and increased efficiency by reducing catalytic reaction time and temperature, particularly in methods of catalyzing oxidation of an alcohol or of catalyzing decarboxylative bromination of an acid.

Method of forming metal oxide nanostructures on a TiO2-ZnO-buffered substrate

A method of forming TiO2—ZnO nanoparticles coated by a copper (II) complex includes forming a mononuclear copper complex by treating a ligand with Cu2+ ions; and immobilizing the mononuclear copper complex on TiO2—ZnO nanoparticles to obtain the TiO2—ZnO nanoparticle coated by the copper (II) complex. The TiO2—ZnO nanoparticles coated by a copper (II) complex thus produced have improved catalytic effectiveness and increased efficiency by reducing catalytic reaction time and temperature, particularly in methods of catalyzing oxidation of an alcohol or of catalyzing decarboxylative bromination of an acid.

A novel biorefinery method of making green graphite products

The invention relates to a novel cascaded biorefinery method of making green practical graphite products, more specifically, to the method of making a graphite product from biomass comprising biomass pyrolysis to produce biochar and biooil, catalytic graphitization of the biochar to produce a graphite powder, shaping the graphite powder with the use of a binder and subjecting the shaped product to heat treatment, wherein the binder comprises the heavy fraction of the biooil subjected to heat treatment The invention also relates to a graphite product produced by the method.

Catalyst system for preparing terephthalic acid

A catalyst system for preparing terephthalic acid including a first complexation of a manganese salt and a first multidentate ligand; and a second complexation of a cobalt salt and a second multidentate ligand, wherein the first multidentate ligand is a tridentate ligand, tetradentate ligand, pentadentate ligand, or hexadentate ligand, and wherein the second multidentate ligand is a tridentate ligand, tetradentate ligand, pentadentate ligand, or hexadentate ligand.

Processes of producing mesoporous beta zeolites

A process of producing a mesoporous beta zeolite includes mixing a crystalline beta zeolite with one or more solvents, cetyltrimethylammonium bromide, and metal hydroxide to produce a solution, heating the solution at a temperature of from 50 ℃ to 150 ℃ to convert the crystalline beta zeolite to a non-crystalline material with reduced silica content relative to the crystalline beta zeolite, cooling the solution to a temperature of from 25 °C to 40 °C, adjusting the pH of the solution to from 8 to 10 by adding an acid, and aging the solution at a temperature of from 50℃ to 150 ℃ for a time period sufficient to crystalize the non-crystalline material to produce beta zeolite particles.

Hydrogenation catalyst and preparation method therefor and use thereof

Catalytic cavitation-inducing agents for sonochemistry

The invention concerns a sonocatalyst which is suitable for promoting a chemical reaction initiated by ultrasound irradiation. The invention also relates to a method of catalysing a reaction by exposing the sonocatalyst to ultrasound. The invention also relates to the use of a sonocatalyst as described herein in a method as described herein. The invention also concerns an apparatus comprising the sonocatalyst of the invention, which may be used to perform a method of the invention

煙道ガス中のＮＯｘ排出を低減するための構造化モノリス触媒、その製造方法、およびその使用

Method of forming metal oxide nanostructures on a TiO2-ZnO-buffered substrate

A method of forming TiO2—ZnO nanoparticles coated by a copper (II) complex includes forming a mononuclear copper complex by treating a ligand with Cu2+ ions; and immobilizing the mononuclear copper complex on TiO2—ZnO nanoparticles to obtain the TiO2—ZnO nanoparticle coated by the copper (II) complex. The TiO2—ZnO nanoparticles coated by a copper (II) complex thus produced have improved catalytic effectiveness and increased efficiency by reducing catalytic reaction time and temperature, particularly in methods of catalyzing oxidation of an alcohol or of catalyzing decarboxylative bromination of an acid.

Catalyst structure for synthesis gas production, synthesis gas production device, and method for producing catalyst structure for synthesis gas production

A catalyst structure for synthesis gas production is used to produce a synthesis gas that includes carbon monoxide and hydrogen. The structure includes a carrier with a porous structure that comprises a zeolite-type compound; first catalyst particles that contain at least one iron-group element selected from the group consisting of nickel, iron, and cobalt; and a second catalyst that contains at least one transition metal element with redox capacity. The carrier includes, inside thereof, mutually communicating passages; the first catalyst particles are present at least in the passages of the carrier; and the second catalyst is present at least in the interior or on an outer surface of the carrier.

Tandem catalyst for synthesizing methyl acetate from carbon dioxide, method for preparing same, and method for preparing methyl acetate using same

Disclosed are a tandem catalyst for synthesizing methyl acetate from carbon dioxide, a method for preparing the same, and a method for preparing methyl acetate using the same. The tandem catalyst of the present invention includes a first catalyst having a core-shell structure including a composite metal oxide core and a silica shell surrounding a surface of the composite metal oxide core, and a second catalyst including nano-ferrierite (N-FER) zeolite.

Carbon Dioxide Methanation Catalyst Molded Body and Method for Producing the Same

Provided is a molded catalyst serving as a methanation catalyst that supports ruthenium as an activated metal, and has high activity at low temperatures, sufficient strength for industrial use, and heat resistance under high temperature and high water vapor pressure conditions. Provided is a carbon dioxide methanation catalyst molded body including an activated alumina molded body, and zirconia and ruthenium supported on the activated alumina molded body, in which the amount of zirconia supported is 3 to 10 parts by mass with respect to 100 parts by mass of the activated alumina molded body, the amount of ruthenium supported is 0.1 to 5 parts by mass per 100 parts by mass of the activated alumina molded body, and the carbon dioxide methanation catalyst molded body is a molded body having a particle diameter of 2 to 20 mm.

Amorphous cobalt-inherent silicon oxide catalyst

Claimed herein is a method of applying amorphous Co—SiOx to activate PMS and produce SO4·− due to the formation of Co(II)-Ov, pairs via the substitution of Si by Co. The inherent Co significantly change the electronic structure of O and Si atoms in the Co—SiOx via final state effects and increase the conductivity in terms of more effective electron transfers. The claimed method using Co—SiOx functions as a more effective oxidative catalyst for the faster degradation of pollutants. The simplicity of the synthetic procedures indicates that the conductive Co—SiOx could be used for the activation of PMS and other electrochemical applications on a wider scale.

Amorphous cobalt-inherent silicon oxide catalyst

Claimed herein is a method of applying amorphous Co—SiOx to activate PMS and produce SO4.− due to the formation of Co(II)-Ov, pairs via the substitution of Si by Co. The inherent Co significantly change the electronic structure of O and Si atoms in the Co—SiOx via final state effects and increase the conductivity in terms of more effective electron transfers. The claimed method using Co—SiOx functions as a more effective oxidative catalyst for the faster degradation of pollutants. The simplicity of the synthetic procedures indicates that the conductive Co—SiOx could be used for the activation of PMS and other electrochemical applications on a wider scale.

Improved paraffin utilization of linear alkyl benzene production

A process is provided for producing linear alkylbenzenes with an improved yield from paraffin feed due to the use of a new catalyst that has a reduced selectivity to produce undesired aromatic compounds. In some embodiments, it is now possible to operate the process without including a unit to remove such aromatic compounds which allows for an operator of a plant to make modifications to the process to increase product yield.

Exhaust gas purification catalyst

The present disclosure provides an exhaust gas purification catalyst with increased catalytic activity. The exhaust gas purification catalyst comprises a metal oxide support and Rh particles supported on the metal oxide support, wherein the metal oxide support is doped with a cation having a higher oxidation number than the cation of the metal oxide support. The metal oxide support may be a SrTiO 3 support doped with greater than 0 mol % and 8 mol % or lower Nb, a ZrO 2 support doped with 5 mol % to 20 mol % Nb, or an Al 2 O 3 support doped with greater than 0 mol % and 7 mol % or lower Ti.

헤테로 원자를 포함하는 유기 광촉매, 그의 제조방법 및 그를 이용한 과산화수소의 생성방법

본 발명은 하기 구조식 1로 표시되는 제1 단위 구조 및 하기 구조식 2로 표시되는 제2 단위 구조를 포함하고, 상기 제1 단위구조가 상기 제2 단위구조와 공유결합으로 서로 연결된 것인 유기 광촉매에 관한 것이다. 본 발명의 유기 광촉매, 그의 제조방법 및 그를 이용한 과산화수소의 생성방법은 유기 광촉매에 헤테로 원자(O 및 P)를 적용함으로써, 가시광의 흡수율을 높이고, 생성된 과산화수소(H 2 O 2 )의 분해를 억제할 수 있다. [구조식 1] [구조식 2] 상기 구조식 1 및 2에서, E 1 내지 E 3 는 각각 독립적으로 인 원자(P) 또는 탄소 원자(C)이고, G 1 내지 G 3 는 각각 독립적으로 탄소 원자(C)이고, L은 각각 독립적으로 또는 이고, R 1 은 수소원자 또는 C1 내지 C3 알킬기이다.

헤테로 원자를 포함하는 유기 광촉매, 그의 제조방법 및 그를 이용한 과산화수소의 생성방법

본 발명은 하기 구조식 1로 표시되는 제1 단위 구조 및 하기 구조식 2로 표시되는 제2 단위 구조를 포함하고, 상기 제1 단위구조가 상기 제2 단위구조와 공유결합으로 서로 연결된 것인 유기 광촉매에 관한 것이다. 본 발명의 유기 광촉매, 그의 제조방법 및 그를 이용한 과산화수소의 생성방법은 유기 광촉매에 헤테로 원자(O 및 P)를 적용함으로써, 가시광의 흡수율을 높이고, 생성된 과산화수소(H 2 O 2 )의 분해를 억제할 수 있다. [구조식 1] [구조식 2] 상기 구조식 1 및 2에서, E 1 내지 E 3 는 각각 독립적으로 인 원자(P) 또는 탄소 원자(C)이고, G 1 내지 G 3 는 각각 독립적으로 탄소 원자(C)이고, L은 각각 독립적으로 또는 이고, R 1 은 수소원자 또는 C1 내지 C3 알킬기이다.

Highly selective alkylation process with low zeolite catalyst composition

A method for alkylation of a feedstock is described. The method includes contacting the feedstock comprising at least one alkylatable aromatic compound and an alkylating agent with a first alkylating catalyst composition under alkylating conditions, the first alkylating catalyst composition comprising UZM-8 zeolite and a binder, the first alkylating catalyst composition having 20-30 wt% UZM-8 zeolite and the catalyst having a nitrogen to zeolite aluminum molar ratio of between 0.01 to 0.040; wherein a total alkylated selectivity at a temperature and a molar ratio of alkylatable aromatic compound to alkylating agent is greater than 99.0%.

微細金属粒子の製造方法

【課題】金属をサブミクロンオーダーの粒径まで微粒化することができる微細金属粒子の製造方法を提供する。【解決手段】微細金属粒子の製造方法は、金属粒子を準備するステップと、炭化水素を含む供給ガスを金属粒子に供給するステップとを含み、供給ガスと金属粒子との接触は６００℃～９００℃の温度で行われる。【選択図】図１

微細金屬粒子之製造方法

本發明之微細金屬粒子之製造方法包含準備金屬粒子之步驟，及將包含烴之供給氣體供給至金屬粒子之步驟，供給氣體與金屬粒子之接觸係於600℃~900℃之溫度進行。

Production method for fine metal particles

A production method for fine metal particles, including a step for preparing metal particles, and a step for supplying the metal particles with a feed gas including a hydrocarbon, wherein the contacting of the feed gas and the metal particles is carried out at a temperature of 600-900°C.