Abstract: A reactor for the synthesis of urea comprising a vertical shell and perforated baffles or trays (3) arranged to define compartments of the reactor, wherein each baffle comprises an array of individual perforated tiles (10) wherein each tile (101) comprises side walls (101A-101D) and a top face (101F), the side walls having first perforations for the liquid and said top face having second perforations for the gas, wherein said second perforations are smaller than said first perforations, and the tiles are distributed over the baffle with a two-dimensional pattern where adjacent tiles are separated by gaps (17).

Abstract: A process for removing hydrogen and methanol from a CO2 stream which contains hydrogen and methanol as contaminants, wherein hydrogen and methanol are removed by contacting the CO2 stream with a catalyst which oxidizes hydrogen to water and methanol to carbon dioxide, obtaining a purified CO2 stream.

Abstract: A process for removing hydrogen and methanol from a CO2 stream which contains hydrogen and methanol as contaminants, wherein hydrogen and methanol are removed by contacting the CO2 stream with a catalyst which oxidizes hydrogen to water and methanol to carbon dioxide, obtaining a purified CO2 stream.

Abstract: Method for modifying a hot wall ammonia reactor con vessel (2) having partial opening, comprising: assembly directly inside the vessel (2) of a catalytic cartridge (7) with modular elements, said modular elements being of a size compatible with introduction into the vessel through a pre-existing partial opening (6) of the vessel, and each comprising at least one panel (11); the panels (11) of said modular elements forming a substantially cylindrical outer wall (7a) of said cartridge (7), and an annular flux space (8) between said outer wall of the cartridge and an inner wall of the vessel; said panels (11) being provided with a respective heat insulation layer (13) before introduction into the vessel (2).

Abstract: Method for modifying a hot wall ammonia reactor con vessel (2) having partial opening, comprising: assembly directly inside the vessel (2) of a catalytic cartridge (7) with modular elements, said modular elements being of a size compatible with introduction into the vessel through a pre-existing partial opening (6) of the vessel, and each comprising at least one panel (11); the panels (11) of said modular elements forming a substantially cylindrical outer wall (7a) of said cartridge (7), and an annular flux space (8) between said outer wall of the cartridge and an inner wall of the vessel; said panels (11) being provided with a respective heat insulation layer (13) before introduction into the vessel (2).