Catalyst regeneration processes that include measures for controlling emissions generated during the regeneration are described. The present invention further relates to catalytic processes for producing various chlorinated aromatic compounds that include provisions for controlling emissions during catalyst regeneration.

Catalyst regeneration processes that include measures for controlling emissions generated during the regeneration are described. The present invention further relates to catalytic processes for producing various chlorinated aromatic compounds that include provisions for controlling emissions during catalyst regeneration.

A novel mixed oxide material is disclosed which contains molybdenum, vanadium, tellurium and niobium and the use of the molybdenum 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.

A novel mixed oxide material is disclosed which contains molybdenum, vanadium, tellurium and niobium and the use of the molybdenum 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.

Provided is a method of manufacturing a nano-catalyst filter, which includes depositing through electrodeposition a catalyst precursor inside a porous filter to which an electrode layer is attached. Using this method, a nano-catalyst can be uniformly deposited inside a porous ceramic filter, and high catalyst efficiency can be obtained only using a small amount of the nano-catalyst.

Provided is a method of manufacturing a nano-catalyst filter, which includes depositing through electrodeposition a catalyst precursor inside a porous filter to which an electrode layer is attached. Using this method, a nano-catalyst can be uniformly deposited inside a porous ceramic filter, and high catalyst efficiency can be obtained only using a small amount of the nano-catalyst.

A reactor includes a catalyst bed module having a first grouping including a first plurality of foam catalyst blocks and a second grouping adjacent to the first grouping and having a second plurality of foam catalyst blocks A first back face of the first plurality of foam catalyst blocks and a second back face of the second plurality of foam catalyst face each other in a spaced relationship. The reactor also includes a sealing frame disposed between the first and second groupings and that may maintain the spaced relationship and form a sealed volume between the first and second plurality of foam catalyst blocks and a support frame having a support surface and an opening, the opening is positioned between the first grouping and the second grouping and adjacent to the sealed volume, and the sealed volume and the opening provide a passage for gas flow.

A reactor includes a catalyst bed module having a first grouping including a first plurality of foam catalyst blocks and a second grouping adjacent to the first grouping and having a second plurality of foam catalyst blocks A first back face of the first plurality of foam catalyst blocks and a second back face of the second plurality of foam catalyst face each other in a spaced relationship. The reactor also includes a sealing frame disposed between the first and second groupings and that may maintain the spaced relationship and form a sealed volume between the first and second plurality of foam catalyst blocks and a support frame having a support surface and an opening, the opening is positioned between the first grouping and the second grouping and adjacent to the sealed volume, and the sealed volume and the opening provide a passage for gas flow.

An engine system includes a hydrogen combustion engine and an exhaust aftertreatment system, EATS, configured to reduce emissions of the engine exhausts. The EATS comprises: an exhaust gas inlet for receiving engine exhaust from the hydrogen combustion engine; a plurality of emission reducing modules arranged downstream of the exhaust gas inlet and being configured to reduce emissions of the engine exhausts, the plurality of emission reducing modules comprising at least a first emission reducing module with a porous substrate including a powder coating and a selective catalyst reduction, SCR, coating, and a second emission reducing module being a selective catalyst reduction, SCR, catalyst unit. At least one of the first and second emission reducing modules is arranged as the first occurring emission reducing module of the EATS downstream of the exhaust gas inlet.

An engine system includes a hydrogen combustion engine and an exhaust aftertreatment system, EATS, configured to reduce emissions of the engine exhausts. The EATS comprises: an exhaust gas inlet for receiving engine exhaust from the hydrogen combustion engine; a plurality of emission reducing modules arranged downstream of the exhaust gas inlet and being configured to reduce emissions of the engine exhausts, the plurality of emission reducing modules comprising at least a first emission reducing module with a porous substrate including a powder coating and a selective catalyst reduction, SCR, coating, and a second emission reducing module being a selective catalyst reduction, SCR, catalyst unit. At least one of the first and second emission reducing modules is arranged as the first occurring emission reducing module of the EATS downstream of the exhaust gas inlet.