Abstract: A method of conducting a distillation process and a cross-corrugated structured packing for use in such a process in which ascending vapor phases and descending liquid phases are contacted in such packing. The cross-corrugated structured packing contains corrugated sheets fabricated of an open cell foam-like material. The liquid phase produces a liquid film descending along struts forming cells of the material and the vapor phase ascends within the cross-corrugated structured packing and enters the cells and contacts the liquid film. The cross-corrugated structured packing is configured such that a superficial velocity at which ambient air would flow through the cross-corrugated structured packing at a pressure drop of 0.3? wc/ft is no greater than 20 times a reference superficial velocity at which the ambient air would flow through the foam-like material making up the corrugated sheets at the same pressure drop to ensure that vapor enters the cells of the foam-like material.

Abstract: A method of conducting a distillation process and a cross-corrugated structured packing for use in such a process in which ascending vapor phases and descending liquid phases are contacted in such packing. The cross-corrugated structured packing contains corrugated sheets fabricated of an open cell foam-like material. The liquid phase produces a liquid film descending along struts forming cells of the material and the vapor phase ascends within the cross-corrugated structured packing and enters the cells and contacts the liquid film. The cross-corrugated structured packing is configured such that a superficial velocity at which ambient air would flow through the cross-corrugated structured packing at a pressure drop of 0.3? wc/ft is no greater than 20 times a reference superficial velocity at which the ambient air would flow through the foam-like material making up the corrugated sheets at the same pressure drop to ensure that vapor enters the cells of the foam-like material.

Abstract: A structured packing formed of a plurality of corrugated, rectangular sheets and a method relating to the use thereof. End regions of the corrugations are provided with straight, parallel corrugations extending inwardly from opposed edges of the sheets and a right angles thereto to reduce pressure drop at the interfaces between packing layers and thereby increase hydraulic capacity. Contact is promoted between descending liquid and ascending vapor phases within a main region of the corrugations that have straight, parallel sections of the corrugations oriented at an acute angle to the opposed edges. Transition regions having arcuate sections of the corrugations connect corrugations within the main and end regions to reduce internal pressure drop within the structured packing and thereby further reduce pressure drop at the interfaces and further increase the hydraulic capacity.

Abstract: The present invention provides a vapor-liquid contact device for use in a distillation column and method incorporating the use of such a vapor-liquid contact device. The vapor-liquid contact device has arrays of elongated strips to support a falling film of a liquid and contact of a vapor with the film. The strips are supported in a structure having top and bottom sections connected to opposite ends of the strips. The top sections have apertures in registry with the strips so that liquid distributed to the top section seeps out of the apertures to initiate formation of the falling film. Openings are provided at the top and bottom sections, so that a vapor is able to pass through the support structure to contact the falling film to effect contact between the liquid and the vapor. Liquid distributors are associated with the top section to distribute the liquid to the apertures.

Abstract: A combined collector and distributor for a distillation column that includes a collector portion connected to a distributor portion. The distributor portion includes a channel-like distributor to distribute liquid into an underlying packing. The collector portion has spaced rows of collection elements that cover the open spaces and distribution elements of the distributor portion and one or more rectangular sumps into which descending liquid drains from the collection elements. The liquid in turn drains from the rectangular sump or sumps into a pre-distribution box located within a header of the distributor portion. The collection elements that cover the open spaces are set at higher positions than the collection elements covering the distribution elements to form chimneys to allow the ascending vapor to escape from the collector portion.

Abstract: A combined collector and distributor for a distillation column that includes a collector portion connected to a distributor portion. The distributor portion includes a channel-like distributor to distribute liquid into an underlying packing The collector portion has spaced rows of collection elements that cover the open spaces and distribution elements of the distributor portion and one or more rectangular sumps into which descending liquid drains from the collection elements. The liquid in turn drains from the rectangular sump or sumps into a pre-distribution box located within a header of the distributor portion. The collection elements that cover the open spaces are set at higher positions than the collection elements covering the distribution elements to form chimneys to allow the ascending vapor to escape from the collector portion.

Abstract: A combined collector and distributor for a distillation column that includes a collector portion connected to a distributor portion. The distributor portion includes a channel-like distributor to distribute liquid into an underlying packing The collector portion has spaced rows of collection elements that cover the open spaces and distribution elements of the distributor portion and one or more rectangular sumps into which descending liquid drains from the collection elements. The liquid in turn drains from the rectangular sump or sumps into a pre-distribution box located within a header of the distributor portion. The collection elements that cover the open spaces are set at higher positions than the collection elements covering the distribution elements to form chimneys to allow the ascending vapor to escape from the collector portion.

Abstract: A structured packing formed of a plurality of corrugated, rectangular sheets and a method relating to the use thereof. End regions of the corrugations are provided with straight, parallel corrugations extending inwardly from opposed edges of the sheets and a right angles thereto to reduce pressure drop at the interfaces between packing layers and thereby increase hydraulic capacity. Contact is promoted between descending liquid and ascending vapor phases within a main region of the corrugations that have straight, parallel sections of the corrugations oriented at an acute angle to the opposed edges. Transition regions having arcuate sections of the corrugations connect corrugations within the main and end regions to reduce internal pressure drop within the structured packing and thereby further reduce pressure drop at the interfaces and further increase the hydraulic capacity.

Abstract: A method of conducting a distillation process and a cross-corrugated structured packing for use in such a process in which ascending vapor phases and descending liquid phases are contacted in such packing. The cross-corrugated structured packing contains corrugated sheets fabricated of an open cell foam-like material. The liquid phase produces a liquid film descending along struts forming cells of the material and the vapor phase ascends within the cross-corrugated structured packing and enters the cells and contacts the liquid film. The cross-corrugated structured packing is configured such that a superficial velocity at which ambient air would flow through the cross-corrugated structured packing at a pressure drop of 0.3? wc/ft is no greater than 20 times a reference superficial velocity at which the ambient air would flow through the foam-like material making up the corrugated sheets at the same pressure drop to ensure that vapor enters the cells of the foam-like material.