B01J37/0213

OLEFIN POLYMERIZATION CATALYST SYSTEM COMPRISING MESOPOROUS ORGANOSILICA SUPPORT

A catalyst system comprising a combination of: 1) one or more catalyst compounds comprising at least one oxygen linkage, such as a phenoxide transition metal compound; 2) a support comprising an organosilica material, which may be a mesoporous organosilica material; and 3) an optional activator. Useful catalysts include biphenyl phenol catalysts (BPP). The organosilica material may be a polymer of at least one monomer of Formula [Z.sup.1OZ.sup.2SiCH.sub.2].sub.3 (I), where Z.sup.1 represents a hydrogen atom, a C.sub.1-C.sub.4 alkyl group, or a bond to a silicon atom of another monomer and Z.sup.2 represents a hydroxyl group, a C.sub.1-C.sub.4 alkoxy group, a C.sub.1-C.sub.6 alkyl group, or an oxygen atom bonded to a silicon atom of another monomer. This invention further relates to processes to polymerize olefins comprising contacting one or more olefins with the above catalyst system.

CATALYSTS, PROCESSES FOR OBTAINING AND PROCESSES FOR STEAM REFORMING
20220055894 · 2022-02-24 ·

The present invention refers to processes for obtaining steam reforming catalysts containing nickel, cerium, lanthanum and copper oxides, free from potassium or alkali metals, preferably with the oxide layer being located externally with a thickness of less than 0.5 mm on the support particle, preferably the support being based on alumina, magnesium aluminate, hexaaluminates or mixtures thereof. The catalysts according to present invention show high activity, resistance to thermal deactivation and resistance to coke accumulation in the steam reforming reaction of hydrocarbons.

Exhaust gas purification catalyst and method for producing the same

An object of the present invention is to provide an exhaust gas purification catalyst for purifying exhaust gas, in particular, fine composite-metal particles contained therein, and a method for producing the same; the exhaust gas purification catalyst according to the present invention includes fine composite-metal particles containing Rh and Pd, wherein, when the fine composite-metal particles in the exhaust gas purification catalyst are analyzed by STEM-EDX, the average ratio of the amount of Pd with respect to the total amount of Rh and Pd in the fine composite-metal particles is 1.7 atomic % or more and 24.8 atomic % or less.

Supported two-component metal oxide catalyst for advanced treatment of petrochemical wastewater and method for preparing same

A method for preparing a supported two-component metal oxide ozone catalytic oxidation catalyst for an advanced treatment of a petrochemical wastewater is provided. The supported two-component metal-oxide ozone catalytic oxidation catalyst is prepared from commercially-available active alumina balls by the steps of carrier activation, impregnating liquid preparation, carrier impregnation, catalyst roasting, and catalyst cleaning. The supported two-component metal oxide ozone catalytic oxidation catalyst has product stability, is reusable, and is of significance in application of ozone catalytic oxidation technologies as well as energy conservation and consumption reduction for petrochemical wastewater treatment plants.

PROCESS FOR THE PREPARATION OF HIGHER ALCOHOLS FROM ETHANOL AND N-HEXANOL BY GUERBET CONDENSATION

The present disclosure generally relates to processes for preparation of n-butanol, n-octanol and n-decanol from a reaction mixture comprising ethanoi and n-hexanol by Guerbet condensation. In some aspects, the present disclosure relates to improvements in n-octanol and n-decanol yield and selectivity by the selection of process reaction conditions such as, but not limited to, mole ratio of n-hexanol to ethanol. The present disclosure further generally relates to integrated processes for preparation of n-butanol in a n-butanol reactor from a reaction mixture comprising ethanol and hydrogen to produce a n-butanol product stream by Geurbet condensation comprising n-butanol and n-hexanol and for preparation of n-octanol in a n-octanol reactor from a reaction mixture comprising ethanol, n-hexanol and hydrogen to produce a n-octanol product stream by Geurbet condensation comprising n-butanol, n-hexanol and n-octanol. A predominant proportion of the n-hexanol contained in the n-butanol and n-octanol product streams is isolated and recycled to the n-octanol reaction mixture. In some aspects, the present disclosure relates to improvements in n-octanol and n-butanol yield and selectivity by the selection of process reaction conditions such as, but not limited to, mole ratio of n-hexanol to ethanol and recovery and recycle of n-hexanol.

Nano-Structured Catalysts
20170283259 · 2017-10-05 ·

The present invention provides novel systems, methods, and processes for producing and synthesizing, through cost-effective thermal processes, highly active and stable carbide-based nano-structured catalysts and compositions that can be used in dry reforming of methane, natural gas, and biogas, for example, to synthesis gas (syngas). The invention provides for using carbon-containing raw materials for synthesizing and producing carbon-encapsulated metal-core nanoparticles such as nickel-based, tungsten-based, and molybdenum-based nano-structured catalysts that can be used in dry reforming gas to syngas.

PRODUCTION METHOD OF FATTY ACID ESTER

A method for producing a fatty acid ester through desulfurization of sulfur from a fatty acid ester using a catalyst, wherein the catalyst carries a catalyst metal on a support, (a) the catalyst contains as the catalyst metal one or more elements selected from the elements of group 9, group 10 and group 11 of the periodic table, (b) the total pore volume of the catalyst is 0.05 mL/g or more, and (c) the volume of pores with a pore size of 0.1 μm or more and 500 μm or less is 50% or more of the total pore volume of the catalyst. A desulfurization method using the desulfurization and a method for producing an alcohol through hydrogenation of the fatty acid ester obtained through the desulfurization are also provided.

REFORMING CATALYST AND A METHOD OF PREPARATION THEREOF

The present disclosure relates to a reforming catalyst composition comprising a spherical gamma AI.sub.2O.sub.3 support; at least one Group VB metal oxide sheet coated on to the AI.sub.2O.sub.3 support; and at least one active metal and at least one promoter metal impregnated on the AI.sub.2O.sub.3 coated support. The reforming catalyst composition of the present disclosure has improved activity, better selectivity for total aromatics during naphtha reforming and results in less coke formation. The reforming catalyst composition has improved catalyst performance with simultaneous modification of acidic sites as well as metallic sites through metal support interaction. The acid site cracking activity of the catalyst is inhibited because of the use of chloride free alumina support modified with solid acid such as Group VB metal oxide and impregnated with active metals. The present disclosure provides a process for naphtha reforming in the presence of the reforming catalyst composition of the present disclosure to obtain reformates of naphtha.

Catalyst for use in the selective catalytic reduction (SCR) of nitrogen oxides

The present invention pertains to a catalyst for use in the selective catalytic reduction (SCR) of nitrogen oxides comprising: • a monolithic substrate and • a coating A which comprises an oxidic metal carrier comprising an oxide of titanium and a catalytic metal oxide which comprises an oxide of vanadium wherein the mass ratio vanadium/titanium is 0.07 to 0.26.

Monolithic catalyst and preparation method and use thereof

The present application discloses a monolithic catalyst with the function of selective adsorption-catalytic oxidation of organic waste gas and a preparation method and application thereof. The present application adopts a double coating design. A first coating is a molecular sieve primer coating. A second coating is an active component coating, which uses a neutral silica sol, so as to protect the activity and effectiveness of a noble metal and a catalytic promoter on the molecular sieve.