The invention relates to a method (100) for producing a target compound, wherein a paraffin is subjected to an oxidative dehydrogenation (1) with oxygen to obtain an olefin, and wherein the olefin is subjected to a hydroformylation (2) with carbon monoxide to obtain an aldehyde, wherein the paraffin and the olefin have a carbon chain having a first carbon number and the aldehyde has a carbon chain having a second carbon number which is one greater than the first carbon number. It is provided that carbon dioxide is formed as a by-product in the oxidative dehydrogenation (1), that the carbon dioxide is subjected to dry reforming (3) at least in part with methane to obtain carbon monoxide and hydrogen, and that the carbon monoxide obtained in the dry reforming (3) and/or the hydrogen obtained in the dry reforming (3) is supplied to the hydroformylation (2). A corresponding installation is also the subject matter of the invention.

Mixed metal oxide catalysts having an amorphous content of not less than 40 wt. % are prepared by calcining the catalyst precursor fully or partially enclosed by a porous material having a melting temperature greater than 600° C. in an inert container including heating the catalyst precursor at a rate from 0.5 to 10° C. per minute from room temperature to a temperature from 370° C. to 540° C. under a stream of pre heated gas chosen from steam and inert gas and mixtures thereof at a pressure of greater than or equal to 1 psig having a temperature from 300° C. to 540° C. and holding the catalyst precursor at that temperature for at least 2 hours and cooling the catalyst precursor to room temperature.

Provided in this disclosure are oxidative dehydrogenation catalysts that include a mixed metal oxide having the empirical formula:
Mo.sub.1.0V.sub.0.12-0.49Te.sub.0.05-0.17Nb.sub.0.10-0.20O.sub.d
wherein d is a number to satisfy the valence of the oxide. The oxidative dehydrogenation catalyst is characterized by having XRD diffraction peaks (2θ degrees) at 22±0.2, 27±0.2, 28.0±0.2, and 28.3±0.1. The disclosure also provides methods of making the catalysts that include wet ball milling.

This document relates to oxidative dehydrogenation catalysts that include molybdenum, vanadium, and oxygen.

A method for reducing carbon dioxide to manufacture a multi-carbon hydrocarbon compound includes steps as follows. A reduction reaction with separation and purification system is provided, which includes a carbon dioxide absorption tower, a reactor, a gas-liquid separation device, a liquid-phase purification device and a gas-phase purification device. An absorption step is performed, wherein a carbon dioxide gas is absorbed to form a mixed solution. A photocatalysis step is performed, wherein the mixed solution is reacted with a photocatalyst to form a carbon-based compound. A separation step is performed, wherein the carbon-based compound is separated to form a liquid-phase mixture and a gas-phase mixture. A liquid-phase purification step is performed, wherein the liquid-phase mixture is purified. A gas-phase purification step is performed, wherein the gas-phase mixture is separated and purified to form a multi-carbon hydrocarbon compound.

This document relates to oxidative dehydrogenation catalysts that include molybdenum, vanadium, and oxygen.

The invention relates to a catalyst which comprises: a) a mixed metal oxide of molybdenum, vanadium, niobium and in optionally tellurium; and b) ceria particles having a crystallite size greater than 15 nanometers (nm); wherein the amount of the ceria particles, based on the total amount of the catalyst, is of from 1 to 60 wt. %. Further, the invention relates to a process for preparing a catalyst, which comprises mixing a mixed metal oxide of molybdenum, vanadium, niobium and optionally tellurium with ceria particles having a crystallite size greater than 15 nanometers (nm), wherein the amount of the ceria particles, based on the total amount of the catalyst, is of from 1 to 60 wt. %. Still further, the invention relates to an alkane oxidative dehydrogenation and/or alkene oxidation process wherein such catalyst is used.

A novel mixed oxide material is disclosed which comprises molybdenum, vanadium, tellurium and niobium and the use of the mixed oxide material as catalyst for the oxidative dehydrogenation of ethane to ethene or the oxidation of propane to acrylic acid and a process for producing the mixed oxide material.

Oxidative dehydrogenation catalysts for converting lower paraffins to alkenes such as ethane to ethylene when prepared as an agglomeration, for example extruded with supports comprising slurries of Nb.sub.2O.sub.5.

Provided in this disclosure are catalyst compositions. The catalyst compositions include an oxidative dehydrogenation catalyst that includes a mixed metal oxide having the empirical formula:

Mo.sub.1.0V.sub.0.12-0.49Te.sub.0.05-0.17Nb.sub.0.10-0.20Al.sub.cO.sub.d

wherein c is from 0 to 2.0 and d is a number to satisfy the valence of the oxide. The compositions are at least 40 wt. % amorphous as measured by XRD. The disclosure also provides methods of making the compositions.