The present invention relates to a catalyst comprising at least one oxide of vanadium, at least one oxide of tungsten, at least one oxide of cerium, at least one oxide of titanium and at least one oxide of niobium, and an exhaust system containing said oxides.

The present invention relates to a catalyst comprising at least one oxide of vanadium, at least one oxide of tungsten, at least one oxide of cerium, at least one oxide of titanium and at least one oxide of niobium, and an exhaust system containing said oxides.

Monodisperse polystyrene microspheres are self-assembled on a conductive surface of FTO glass by vertical deposition method to prepare three-dimensional ordered photonic crystal opal template; the three-dimensional ordered photonic crystal opal template is immersed in a solution containing rhodium source, titanium source and strontium source, and is then calcined to prepare a rhodium doped strontium titanate inverse opal material; and the rhodium doped strontium titanate inverse opal material is added to water containing pollutants, and is then subjected to illumination and/or ultrasonic treatment to complete the removal of the pollutants in the water. The three-dimensional ordered macroporous rhodium doped strontium titanate inverse opal material may be applied in the field of photocatalysis. Under the action of external force, a built-in electric field formed by the spontaneous polarization of the material may effectively separate the photo-induced carriers, which may thus enhance the photocatalytic performance and improve the photocatalytic efficiency.

Monodisperse polystyrene microspheres are self-assembled on a conductive surface of FTO glass by vertical deposition method to prepare three-dimensional ordered photonic crystal opal template; the three-dimensional ordered photonic crystal opal template is immersed in a solution containing rhodium source, titanium source and strontium source, and is then calcined to prepare a rhodium doped strontium titanate inverse opal material; and the rhodium doped strontium titanate inverse opal material is added to water containing pollutants, and is then subjected to illumination and/or ultrasonic treatment to complete the removal of the pollutants in the water. The three-dimensional ordered macroporous rhodium doped strontium titanate inverse opal material may be applied in the field of photocatalysis. Under the action of external force, a built-in electric field formed by the spontaneous polarization of the material may effectively separate the photo-induced carriers, which may thus enhance the photocatalytic performance and improve the photocatalytic efficiency.

A process for producing a hydrogen-rich gas stream from a liquid hydrocarbon stream, the process comprising the steps of introducing the liquid hydrocarbon stream to a dual catalytic zone, the liquid hydrocarbon stream comprises liquid hydrocarbons selected from the group consisting of liquid petroleum gas (LPG), light naphtha, heavy naphtha, gasoline, kerosene, diesel, and combinations of the same, the dual catalytic zone comprises: a combustion zone comprising a seven component catalyst, and a steam reforming zone, the steam reforming zone comprising a steam reforming catalyst; introducing steam to the dual catalytic zone, introducing an oxygen-rich gas to the dual catalytic zone; contacting the liquid hydrocarbon stream, steam, and oxygen-rich gas with the seven component catalyst to produce a combustion zone fluid; and contacting the combustion zone fluid with the steam reforming catalyst to produce the hydrogen-rich gas stream, wherein the hydrogen-rich gas stream comprises hydrogen.

A process for producing a hydrogen-rich gas stream from a liquid hydrocarbon stream, the process comprising the steps of introducing the liquid hydrocarbon stream to a dual catalytic zone, the liquid hydrocarbon stream comprises liquid hydrocarbons selected from the group consisting of liquid petroleum gas (LPG), light naphtha, heavy naphtha, gasoline, kerosene, diesel, and combinations of the same, the dual catalytic zone comprises: a combustion zone comprising a seven component catalyst, and a steam reforming zone, the steam reforming zone comprising a steam reforming catalyst; introducing steam to the dual catalytic zone, introducing an oxygen-rich gas to the dual catalytic zone; contacting the liquid hydrocarbon stream, steam, and oxygen-rich gas with the seven component catalyst to produce a combustion zone fluid; and contacting the combustion zone fluid with the steam reforming catalyst to produce the hydrogen-rich gas stream, wherein the hydrogen-rich gas stream comprises hydrogen.

A method of producing 1,3-butadiene including feeding oxygen and a feedstock gas containing n-butene into a reactor from the lower section of the reactor provided with a metal atom-containing catalyst, so that a product gas containing 1,3-butadiene is obtained through oxidative dehydrogenation of n-butene; cooling the product gas containing the 1,3-butadiene; and separating the 1,3-butadiene from the cooled product gas through selective absorption into an absorption solvent.

A method of producing 1,3-butadiene including feeding oxygen and a feedstock gas containing n-butene into a reactor from the lower section of the reactor provided with a metal atom-containing catalyst, so that a product gas containing 1,3-butadiene is obtained through oxidative dehydrogenation of n-butene; cooling the product gas containing the 1,3-butadiene; and separating the 1,3-butadiene from the cooled product gas through selective absorption into an absorption solvent.

The present invention relates to a catalyst composition comprising a support, catalytically active species comprising a vanadium species, an antimony species and a tungsten species, and optionally, at least one further species selected from the group consisting of silicon species, aluminum species, zirconium species, titanium species, and cerium species; a catalytic article comprising the same, a method for preparing the catalytic article, and use of the catalyst composition or the catalytic article for selective catalytic reduction of nitrogen oxides in exhaust gases.

The present invention relates to a catalyst composition comprising a support, catalytically active species comprising a vanadium species, an antimony species and a tungsten species, and optionally, at least one further species selected from the group consisting of silicon species, aluminum species, zirconium species, titanium species, and cerium species; a catalytic article comprising the same, a method for preparing the catalytic article, and use of the catalyst composition or the catalytic article for selective catalytic reduction of nitrogen oxides in exhaust gases.