A supported non-oxidative alkane dehydrogenation catalyst and a method for making and using the same is disclosed. The supported non-oxidative alkane dehydrogenation catalyst can include a vanadium oxide, a rare earth metal oxide, an alkali metal oxide, and a support containing silica and alumina.

A supported non-oxidative alkane dehydrogenation catalyst and a method for making and using the same is disclosed. The supported non-oxidative alkane dehydrogenation catalyst can include a vanadium oxide, a rare earth metal oxide, an alkali metal oxide, and a support containing silica and alumina.

Methods and a reactor system for producing acetic acid in a selective oxidation (SO) reactor are provided. An example method includes providing a fresh feed stream to the SO reactor, wherein the fresh feed stream includes a light hydrocarbon feed stream, a carbon dioxide feed stream, and a steam feed stream. Acetic acid is formed in the SO reactor. An acetic acid product stream is separated from a reactor effluent stream in a scrubber. A recycle gas stream is obtained from the scrubber. At least a portion of the recycle gas stream is combined into the fresh feed stream to the SO reactor.

Methods and a reactor system for producing acetic acid in a selective oxidation (SO) reactor are provided. An example method includes providing a fresh feed stream to the SO reactor, wherein the fresh feed stream includes a light hydrocarbon feed stream, a carbon dioxide feed stream, and a steam feed stream. Acetic acid is formed in the SO reactor. An acetic acid product stream is separated from a reactor effluent stream in a scrubber. A recycle gas stream is obtained from the scrubber. At least a portion of the recycle gas stream is combined into the fresh feed stream to the SO reactor.

The present invention relates to a process for starting up a reactor for preparation of phthalic anhydride by the catalytic oxidation of ortho-xylene and/or naphthalene, containing a bed of shaped catalyst bodies and within a temperature-controlled salt bath. The industrial production of phthalic anhydride from ortho-xylene and/or naphthalene is affected by selective gas phase oxidation in a shell and tube reactor cooled with a salt bath, which may contain several thousand reactor tubes. There are 4 to 5 different catalyst layers in each reactor, which are introduced into each reactor successively in axial direction.

The present invention relates to a process for starting up a reactor for preparation of phthalic anhydride by the catalytic oxidation of ortho-xylene and/or naphthalene, containing a bed of shaped catalyst bodies and within a temperature-controlled salt bath. The industrial production of phthalic anhydride from ortho-xylene and/or naphthalene is affected by selective gas phase oxidation in a shell and tube reactor cooled with a salt bath, which may contain several thousand reactor tubes. There are 4 to 5 different catalyst layers in each reactor, which are introduced into each reactor successively in axial direction.

The present invention relates to a selective catalytic reduction catalyst for the treatment of an exhaust gas of a diesel engine comprising: a flow-through substrate comprising an inlet end, an outlet end, a substrate axial length extending from the inlet end to the outlet end and a plurality of passages defined by internal walls of the flow through substrate extending therethrough; a coating disposed on the surface of the internal walls of the substrate, wherein the coating comprises a non-zeolitic oxidic material comprising manganese and one or more of the metals of the groups 4 to 11 and 13 of the periodic table, and further comprises one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron.

The present invention relates to a selective catalytic reduction catalyst for the treatment of an exhaust gas of a diesel engine comprising: a flow-through substrate comprising an inlet end, an outlet end, a substrate axial length extending from the inlet end to the outlet end and a plurality of passages defined by internal walls of the flow through substrate extending therethrough; a coating disposed on the surface of the internal walls of the substrate, wherein the coating comprises a non-zeolitic oxidic material comprising manganese and one or more of the metals of the groups 4 to 11 and 13 of the periodic table, and further comprises one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron.

The present disclosure provides an improved shaped catalyst containing catalytic material comprised of mixed oxides of vanadium and phosphorus and using such shaped catalysts for the production of maleic anhydride.

The present invention relates to a catalyst for the oxidation of NO, for the oxidation of ammonia, for the oxidation of HC and for the selective catalytic reduction of NOx, comprising a flow through substrate comprising an inlet end, an outlet end, a substrate axial length extending from the inlet end to the outlet end and a plurality of passages defined by internal walls of the flow through substrate extending therethrough; a first coating comprising one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron; a second coating comprising a first platinum group metal component supported on a non-zeolitic first oxidic material and further comprising one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron; optionally a third coating comprising a second platinum group metal component supported on a second oxidic material; wherein the third coating is disposed on the surface of the internal walls and under the second coating over z % of the axial length of the substrate from the outlet end to the inlet end, with z being in the range of from 0 to 100; wherein the second coating extends over y % of the axial length of the substrate from the inlet end to the outlet end and is disposed either on the surface of the internal walls, or on the surface of the internal walls and the third coating, or on the third coating, with y being in the range of from 95 to 100; wherein the first coating extends over x % of the axial length of the substrate from the inlet end to the outlet end and is disposed on the second coating, with x being in the range of from 20 to y.