Nova Chemicals (international) S.a.

David Jeffrey Sullivan

Vasily Simanzhenkov

Xiaoliang Gao

Marie Annette Barnes

Yoonhee Kim

Hanna Drag

Yipei Styles

Leonid Modestovich Kustov

Aleksey Victorovich Kucherov

Elena Dmitrievna Finashina

Renee Laurel Anseeuw

Elena Sebastiao

Perry De Wit

Shahin Goodarznia

Bolaji Olayiwola

A catalyst, useful for oxidative dehydrogenation of ethane, comprising molybdenum, vanadium, tellurium, tantalum, and oxygen, prepared using a stage hydrothermal synthesis procedure, is provided. The catalyst comprises from 30 to 50 wt. % amorphous content and may be combined with a support/carrier material to form a catalyst material. The described catalysts and catalyst materials demonstrate high selectivity for ethylene at higher temperatures, show little to no decline in conversion and selectivity over time, and do not appear to be sensitive to low residual oxygen concentrations.

Mixed metal oxide catalyst containing tantalum for ODH of ethane

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.

Calcination process to produce enhanced ODH catalyst

This document relates to oxidative dehydrogenation catalyst materials that include molybdenum, vanadium, beryllium, oxygen, and optionally aluminum.

Molybdenum-vanadium-beryllium-based oxidative dehydrogenation catalyst materials

This document relates to oxidative dehydrogenation catalyst materials that include molybdenum, vanadium, oxygen, and iron; oxidative dehydrogenation catalyst materials that include molybdenum, vanadium, oxygen, and aluminum; and oxidative dehydrogenation catalyst materials that include molybdenum, vanadium, oxygen, iron, and aluminum.

Molybdenum-vanadium-iron- and/or molybdenum-vanadium-aluminium-based oxidative dehydrogenation catalyst materials

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:MoVTeNbAlOwherein 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.

Oxidative dehydrogenation catalyst compositions

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 NbO.

Agglomerated ODH catalyst

A catalyst for oxidative dehydrogenation (ODH) of ethane with an empirical formula Mo&#x2014;V&#x2014;Te&#x2014;Nb&#x2014;Pd&#x2014;O produced using a process comprising impregnation of the Pd component on the surface of the catalyst following a calcination step using a Pd compound free of halogens. The resulting catalyst can be used in both diluted and undiluted ODH processes and shows higher than expected activity without any loss of selectivity.

Catalyst for ethane ODH

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&#xb0; C. in an inert container including heating the catalyst precursor at a rate from 0.5 to 10&#xb0; C. per minute from room temperature to a temperature from 370&#xb0; C. to 540&#xb0; 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&#xb0; C. to 540&#xb0; C. and holding the catalyst precursor at that temperature for at least 2 hours and cooling the catalyst precursor to room temperature.

Oxidative dehydrogenation catalysts comprising MoVNbTeO having improved consistency of composition and a 25% conversion of ethylene at less than 420&#xb0; C. and a selectivity to ethylene above 95% are prepared by treating the catalyst precursor with HOin an amount equivalent to 0.30-2.8 mL HOof a 30% solution per gram of catalyst precursor prior to calcining and treating the resulting catalyst with the equivalent amount of peroxide after calcining.

Double peroxide treatment of oxidative dehydrogenation catalyst

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

Catalysts for the oxidative dehydrogenation of alkanes

Provided in this disclosure are oxidative dehydrogenation catalysts that include a mixed metal oxide having the empirical formula:MoVTeNbOwherein d is a number to satisfy the valence of the oxide. The oxidative dehydrogenation catalyst is characterized by having XRD diffraction peaks (2&#x3b8; degrees) at 22&#xb1;0.2, 27&#xb1;0.2, 28.0&#xb1;0.2, and 28.3&#xb1;0.1. The disclosure also provides methods of making the catalysts that include wet ball milling.

Oxidative dehydrogenation catalysts

Oxidative dehydrogenation catalysts including mixed oxides of Mo, V, Nb, Te, and optionally a promoter may be dissolved in aqueous solutions of oxalic acid. This permits the removal of catalyst and catalyst residues from reactors for the oxidative dehydrogenation of paraffins and particularly ethane.

Removing and cleaning dehydrogenation catalysts

Oxidative dehydrogenation catalysts comprising MoVNbTeO having improved consistency of composition and a 25% conversion of ethylene at less than 420&#xb0; C. and a selectivity to ethylene above 95% are prepared by treating the catalyst precursor with HOin an amount equivalent to 0.30-2.8 mL HOof a 30% solution per gram of catalyst precursor prior to calcining.

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Calgary, Canada

David Jeffrey Sullivan