Patent classifications
C07C27/16
METHOD OF PRODUCING C2-C4 CARBONYL COMPOUNDS
- Alexandr Sergeevich HARITONOV ,
- Konstantin Alexandrovich DUBKOV ,
- Mihail Vladimirovich PARFENOV ,
- Alexandr Stepanovich NOSKOV ,
- Valentin Nikolaevich PARMON ,
- Valery Alexandrovich GOLOVACHEV ,
- Andrei Vladimirovich KLEIMENOV ,
- Dmitry Olegovich KONDRASHEV ,
- Valentina Dmitrievna MIROSHKINA ,
- Petr Alexandrovich ABRASHENKOV
The invention relates to a method of producing carbonyl compounds, more particularly C.sub.2-C.sub.4 ketones and aldehydes. The method is based on the gas-phase oxidation by nitrous oxide of C.sub.2-C.sub.4 alkane-olefin mixtures, such as a butane-butylene fraction or a propane-propylene fraction, obtained by thermal and/or catalytic cracking, to produce C.sub.2-C.sub.4 ketones and aldehydes. The process is carried out under continuous flow conditions at a temperature of 300-550° C. and pressure of 1-100 atm, without prior isolation of individual olefins from the fractionation products and in the absence of a catalyst. The process provides for high productivity, high overall selectivity for ketones and aldehydes, and explosion-safe operation.
METAL ORGANIC FRAMEWORKS AS CATALYSTS AND HYDROCARBON OXIDATION METHODS THEREOF
A metal organic framework comprising zinc (II) ions and second metal ions, such as iron (II) ions, cobalt (II) ions, and copper (II) ions as nodes or clusters and coordinated 1,3,5-benzenetricarboxylic acid struts or linkers between them forming a porous coordination network in the form of polyhedral crystals that are isostructural to HKUST-1. Transmetallation processes for producing the metal organic frameworks, as well as methods for applications of the metal organic frameworks as catalysts, specifically catalysts for the oxidation of cyclic hydrocarbons, such as toluene, cyclohexane, and methylcyclohexane.
METAL ORGANIC FRAMEWORKS AS CATALYSTS AND HYDROCARBON OXIDATION METHODS THEREOF
A metal organic framework comprising zinc (II) ions and second metal ions, such as iron (II) ions, cobalt (II) ions, and copper (II) ions as nodes or clusters and coordinated 1,3,5-benzenetricarboxylic acid struts or linkers between them forming a porous coordination network in the form of polyhedral crystals that are isostructural to HKUST-1. Transmetallation processes for producing the metal organic frameworks, as well as methods for applications of the metal organic frameworks as catalysts, specifically catalysts for the oxidation of cyclic hydrocarbons, such as toluene, cyclohexane, and methylcyclohexane.
OXIDATION REACTOR AND PROCESS FOR PRODUCING OXIDE
Provided is an oxidation reactor capable of oxidizing hydrocarbons with both reaction efficiency and energy efficiency. The oxidation reactor according to the present invention includes a liquid inlet channel, a gas inlet channel, a gas-liquid mixing unit, and a flow reactor. Through the liquid inlet channel, a liquid containing a reaction substrate hydrocarbon is introduced. Through the gas inlet channel, a gas containing oxygen and ozone is introduced. The gas-liquid mixing unit mixes the liquid introduced from the liquid inlet channel with the gas introduced from the gas inlet channel. In the flow reactor, an oxidation catalyst is immobilized or packed. The gas-liquid mixing unit houses, in its channel, a mobile particle which is capable of rotating and/or moving to mix the liquid with the gas to thereby form a gas-liquid slug flow. The gas-liquid slug flow is introduced into the flow reactor.
SOLID ACID CATALYST AND METHOD FOR PRODUCING OXIDE
Provided is a solid acid catalyst for use in oxidation of a substrate in the coexistence of oxygen and ozone (solid acid catalyst for oxygen-ozone-coexisting oxidation). The solid acid catalyst enables oxidation of the substrate with a high conversion. This solid acid catalyst for oxygen-ozone-coexisting oxidation is a solid acid catalyst for use in an oxidation reaction to oxidize a substrate (A) in the coexistence of oxygen and ozone. The solid acid catalyst includes a transition metal in the form of an elementary substance, a compound, or an ion, and a support supporting the transition metal. The support includes, at least in its surface, a strong acid or super strong acid having a Hammett acidity function (H.sub.0) of −9 or less. The support is preferably a pellet or particle made of a fluorinated sulfonic acid resin, or a support including a solid and a layer of a fluorinated sulfonic acid resin disposed on the solid.
OXIDATION REACTOR AND PRODUCTION METHOD FOR OXIDE
Provided is an oxidation reactor capable of oxidizing hydrocarbons with both good reaction efficiency and good energy efficiency. This oxidation reactor includes a liquid inlet channel, a gas inlet channel, a gas-liquid mixing unit, and a flow reactor. Through the liquid inlet channel, a liquid containing a reaction substrate hydrocarbon is introduced. Through the gas inlet channel, a gas containing oxygen and ozone is introduced. The gas-liquid mixing unit mixes the liquid introduced from the liquid inlet channel with the gas introduced from the gas inlet channel. In the flow reactor, an oxidation catalyst is immobilized or packed. In the oxidation reactor, the flow reactor includes a monolith support and the oxidation catalyst immobilized to or packed in the monolith support. In addition or alternatively, the gas-liquid mixing unit includes a microbubble generator.
METHOD FOR PRODUCING OXIDATION REACTION PRODUCT OF HYDROCARBON OR DERIVATIVE THEREOF
The present invention is intended to provide a method that can produce an oxidation reaction product of a hydrocarbon or a derivative thereof in an aqueous phase using a hydrocarbon or a derivative thereof as a raw material. In order to achieve the above object, the method for producing an oxidation reaction product of a hydrocarbon or a derivative thereof of the present invention includes the step of: irradiating a reaction system with light in a presence of a raw material and a halogen oxide radical to react, wherein the raw material is a hydrocarbon or a derivative thereof, the reaction system is a reaction system containing an aqueous phase, the aqueous phase contains the raw material and the halogen oxide radical, and in the reaction step, the raw material is oxidized to produce an oxidation reaction product of the raw material.
Chemical Conversion of Carbon Dioxide and Gaseous Hydrocarbons to Solvents
Catalytic chemical conversion of carbon dioxide gas combined with a hydrocarbon gas, comprising natural gas, methane, ethane, propane, butane or pentane, over a transition metal oxide, produces organic solvent products. The process converts oxidized carbon compounds to valued organic products and can reduce or eliminate the carbon footprint of industrial electric power generation industry. Catalytic processes are taught for chemical conversion of oxides of carbon, principally carbon dioxide (formed by combustion of hydrocarbons), to solvent compounds comprising acetone, butanol, pentane and related organic products. The catalysts are transition metal oxides, selected from the group comprising manganese, iron and cobalt or combinations thereof.
Ozone-facilitated selective oxidation of alkanes in liquid carbon dioxide
A process for the ozonolysis of an alkane may comprise combining an alkane and ozone in a liquid phase medium comprising CO.sub.2 under conditions sufficient to oxidize the alkane to produce one or more non-combustion products. The liquid phase medium may be free of a super acid.
Ozone-facilitated selective oxidation of alkanes in liquid carbon dioxide
A process for the ozonolysis of an alkane may comprise combining an alkane and ozone in a liquid phase medium comprising CO.sub.2 under conditions sufficient to oxidize the alkane to produce one or more non-combustion products. The liquid phase medium may be free of a super acid.