Abstract: A plant for purifying a gas stream comprising at least 0.02% by volume of water, CO2 and NOx, comprising an adsorber characterized by: a cavity (1); an adsorbent (2) included in the cavity (1); an outer casing (3) made of carbon steel; an inner casing (4) made of stainless steel making a space having a width of between 10 and 100 mm between said inner casing and the outer casing, said space being at equal pressure with the cavity.

Abstract: The invention relates to a facility for purification by adsorption of gaseous flow comprising at least one impurity which has a corrosive effect on carbons steel, comprising a radial adsorber comprising a housing with an outer envelope made of carbon steel; a vertical perforated inner grating consisting of a corrosion-resistant material, a vertical perforated outer grating, an adsorbent which is held vertically by the outer grating and the inner grating, and allows at least partial blockage of the corrosive impurity, and a means for allowing a centrifugal circulation of the gaseous flow.

Abstract: A plant for purifying a gas stream comprising at least 0.02% by volume of water, CO2 and NOx, comprising an adsorber characterized by: a cavity (1); an adsorbent (2) included in the cavity (1); an outer casing (3) made of carbon steel; an inner casing (4) made of stainless steel making a space having a width of between 10 and 100 mm between said inner casing and the outer casing, said space being at equal pressure with the cavity.

Abstract: The invention relates to a valve including a circuit for a fluid conveyed into a valve body, a stopper that is movable between a rest position and an operative position from among an open position and a closed position of said circuit, and a resilient annular bellows system connecting said stopper and said body and sealingly closing said circuit in relation to a chamber, wherein the chamber is open towards the outside of the valve via a vent formed in the body, the vent being provided with means for preventing the ingress of wet gas into the body.

Abstract: A fluid distributor for heat and material exchange columns, more particularly of the packed type, comprising profiled elements (2) of inverted U shape with substantially vertical walls (4), and a base (1) in which are formed a plurality of parallel slots (9). Each slot is covered by one of the profiled elements, secured to the base by the walls (4) in a permanent and sealed manner. The base (1) is a flat plate. Each profiled element (2) is fixed to the two opposite edges of its slot (9) by welding. Each of the walls (4) terminates in at least one foot (7) turned inwardly of the element (2) and parallel to the surface of the base (1), the feet (7) serving to attach the elements to the base.