Oxidative dehydrogenation is an alternative to the energy extensive steam cracking process presently used for the production of olefins from paraffins, but has not been implemented commercially partially due to the unstable nature of hydrocarbon/oxygen mixtures, and partially due to the cost involved in the construction of new facilities. An oxidative dehydrogenation chemical complex designed to reduce costs by including integration of an oxygen separation module that also addresses safety concerns and reduces emission of greenhouse gases is described.

Oxidative dehydrogenation is an alternative to the energy extensive steam cracking process presently used for the production of olefins from paraffins, but has not been implemented commercially partially due to the unstable nature of hydrocarbon/oxygen mixtures, and partially due to the cost involved in the construction of new facilities. An oxidative dehydrogenation chemical complex designed to reduce costs by including integration of an oxygen separation module that also addresses safety concerns and reduces emission of greenhouse gases is described.

Oxidative dehydrogenation is an alternative to the energy extensive steam cracking process presently used for the production of olefins from paraffins, but has not been implemented commercially partially due to the unstable nature of hydrocarbon/oxygen mixtures, and partially due to the cost involved in the construction of new facilities. An oxidative dehydrogenation chemical complex designed to reduce costs by including integration of an oxygen separation module that also addresses safety concerns and reduces emission of greenhouse gases is described.

Disclosed herein are palladium-catalyzed dehydrogenation processes of carboxylic acids to make ?, ?-unsaturated carboxylic acids or ?-alkylidene butenolides. The processes allow the chemoselective dehydrogenation of carboxylic acids in the presence of other enolizable functionalities such as ketones, providing reactivity that is inaccessible with existing carbonyl desaturation protocols.

Disclosed herein are palladium-catalyzed dehydrogenation processes of carboxylic acids to make ?, ?-unsaturated carboxylic acids or ?-alkylidene butenolides. The processes allow the chemoselective dehydrogenation of carboxylic acids in the presence of other enolizable functionalities such as ketones, providing reactivity that is inaccessible with existing carbonyl desaturation protocols.

A supported catalyst and preparation method thereof, the catalyst comprising an organic polymer material carrier and Raney alloy particles supported on the organic polymer material carrier, wherein substantially all of the Raney alloy particles are partially embedded in the organic polymer material carrier. The catalyst can be used in hydrogenation, dehydrogenation, amination, dehalogenation or desulfuration reactions.

A packed bed includes a vessel including a shell, an inlet, and an outlet, wherein the space inside the shell between the inlet and outlet forms an internal volume; a plurality of packing material structures filling at least a portion of the internal volume thereby forming a packed volume, wherein the packed volume has a void fraction, and the packing material structures provide an aggregate surface area; and the vessel has a pressure drop between the vessel inlet and vessel outlet, wherein the pressure drop is less than 1.0 times that of a packed bed of the non-twisted shapes with the same cross-section.

A packed bed includes a vessel including a shell, an inlet, and an outlet, wherein the space inside the shell between the inlet and outlet forms an internal volume; a plurality of packing material structures filling at least a portion of the internal volume thereby forming a packed volume, wherein the packed volume has a void fraction, and the packing material structures provide an aggregate surface area; and the vessel has a pressure drop between the vessel inlet and vessel outlet, wherein the pressure drop is less than 1.0 times that of a packed bed of the non-twisted shapes with the same cross-section.

A structured catalyst for catalyzing an endothermic reaction of a feed gas to convert it to a product gas Including at least one macroscopic structure of an electrically conductive material and at least one connector attached to the at least one macroscopic structure, wherein the macroscopic structure supports a catalytically active material.

A structured catalyst for catalyzing an endothermic reaction of a feed gas to convert it to a product gas Including at least one macroscopic structure of an electrically conductive material and at least one connector attached to the at least one macroscopic structure, wherein the macroscopic structure supports a catalytically active material.