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AssigneesThe British Ceca Company Limited, Croftshaw (Engineers) Limited
InventorMaurice Victor Girard
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An improved vessel design is provided for contact of gas or vapour with particulate solid material, for example for adsorption systems such as air drying and solvent recovery systems, in which a plurality of trays for containing the particulate material are supported by a pillar structure within the shell of the vessel, the shell serving merely as an envelope which does not provide support for the trays thereby enabling a considerable reduction in material costs for the shell and greater design flexibility for the site where the vessel is to be installed. The pillar preferably forms a manifold for conveying gas or vapour streams to or from each of the trays and deflecting baffles for the gas or vapour streams are also provided. A sparge pipe may also extend along the duct to introduce steam or other purge gas for regeneration of an adsorbent in situ.
Apparatus for use in contacting a gas or vapour with particulate solid material, comprising a shell, a pillar within the shell, said pillar comprising a hollow interior, forming an interior duct having a plurality of groups of apertures at intervals therealong, a plurality of trays for the solid particulate material supported by said pillar adjacent said groups of apertures respectively, and openings in each of said trays communicating with said respective apertures in said pillar for allowing passage of gas or vapour through the trays between the interior of the shell and the interior duct of said pillar, said shell having first and second ports communicating respectively with the interior of the shell and said interior duct such that passage of gas or vapour through the apparatus is permitted only via said openings and apertures.
In the method of contacting a gas or vapour with a particulate solid material wherein the gas or vapour is passed through a vessel containing said particulate solid material, the improvement wherein said particulate material is contained in a plurality of trays which are supported within said vessel by means of a pillar comprising an interior duct, said pillar and trays having apertures and openings therein respectively which allow passage of the gas or vapour through said particulate solid material between the interior of the vessel and the interior duct of said pillar, and said vessel having ports communicating respectively with the interior of the vessel and said interior duct, passing said gas or vapour through the vessel only via said apertures and openings.
In the method of drying or dehumidifying air, wherein the air is passed through an adsorber vessel containing a dessicant, the improvement wherein said dessicant is contained in a plurality of trays which are supported within said vessel by means of a pillar comprising an interior duct, said pillar and trays having apertures and openings therein respectively which allow passage of air through said dessicant between the interior of the vessel and the interior duct of said pillar, and said vessel having ports communicating respectively with the interior of the vessel and said interior duct, passing said air through the vessel only via said apertures and openings.
In the method of recovering solvent from a vapour or gas stream, wherein said stream is passed through an adsorber vessel containing a particulate adsorbent material, the improvement wherein said adsorbent material is contained in a plurality of trays which are supported within said vessel by means of a pillar comprising an interior duct, said pillar and trays having apertures and openings therein respectively which allow passage of said stream through said adsorbent material between the interior of the vessel and the interior duct of said pillar, and said vessel having ports communicating respectively with the interior of the vessel and said interior duct, passing said stream through the vessel only via said apertures and openings.
Dependencies are inferred from the claim text.