The invention relates to a packing assembly for a material exchange column, comprising at least one structured packing plate and a container in which the at least one structured packing plate is arranged. The at least one structured packing plate has packing packets. Each packing packet has interconnected packing sheets. The packing sheets are corrugated and have corrugation peaks and corrugation valleys. Adjacent packing sheets contact each other at the corrugation peaks. Additional corrugated packing sheets are added between the packing packets such that the at least one packing plate is pretensioned against the container in a radial direction thereof. Both the corrugated packing sheets of the packing packets as well as the additional corrugated packing sheet added between the packing packets are arranged solely on a common preferred plane or parallel thereto.

The invention relates to a column having: a shell, which is extended along a longitudinal axis and encloses an interior of the column, at least one mass transfer tray, which is extended along a column cross section, extending transversely to the longitudinal axis, of the column, and at least one liquid distributor, which is designed to feed the at least one mass transfer tray with a liquid phase. In accordance with the invention, the mass transfer tray has a plurality of runoff elements extending parallel to and at a distance from one another, more particularly in the form of angular profiles, which are each extended along the column cross section, where the runoff elements each have first and second runoff surfaces extended along the column cross section, and where the two runoff surfaces converge along the longitudinal axis in the direction of the liquid distributor and meet, and in so doing form an edge extended along the column cross section, and where the liquid distributor is designed to apply the liquid phase to the edges of the runoff elements, so that the liquid phase applied to the respective runoff element flows off from the respective runoff element via the runoff surfaces at both sides of the respective edge.

A device for the intimate mixing of solid particles and a gaseous medium within a gas-solid fluidized bed, comprising a plurality corrugated and/or ribbed planar stanchions arranged in alternating intersecting planes that provide a plurality of open spaces between or adjacent the alternating intersecting planar stanchions. The element has a three-dimensional lattice configuration and the corrugated and/or ribbed planar stanchions are formed from metal having peaks and valleys or ribs, such that the peaks and valleys or ribs are angled at less than 90 degrees from the fall-line of the planar stanchion when assembled into the element. The angled peaks and valleys or ribs form channels that enhance lateral movement of catalyst particles into the spaces between the stanchions to provide improved vapor/solids mixing and contact.

A corrugated structured packing sheet has surface texturing that may be in the form of a grid of indented and raised structures. Each indented structure is separated from some or all of adjacent ones of the indented structures by the raised structures. The raised structures form rows of peaks and interconnecting saddles. Microchannels extend along adjacent ones of the indented structures and the interconnecting saddles and intersect the corrugation valleys at an angle in the range of 20 to 75 degrees. The surface texturing may be or include wavy parallel grooves in an upper edge region adjacent the upper edge and a lower edge region adjacent the lower edge and may be or include parallel groove segments in the bulk region that are oriented obliquely to upper and lower edges of the structured packing sheet.

A cross-corrugated structured packing element is provided for use in mass transfer or heat exchange columns. The packing element has a plurality of packing layers positioned in an upright, parallel relationship to each other and including corrugations formed of alternating peaks and valleys and corrugation sidewalls extending between the peaks and valleys. The packing element also includes a plurality of apertures each presenting an open area. The apertures are distributed such that the corrugation sidewalls have a greater density of open areas than any density of the open areas that may be present in the peaks and valleys. Some of the apertures may be present in the peaks and the valleys to facilitate liquid distribution. The apertures may also be placed in rows or other patterns that are aligned in a direction along a longitudinal length of the corrugations. Regions with a larger apex radius may be formed in the peaks, such as by depressing spaced-apart segments of the peaks to form spacers in the undepressed portions of the peaks. Some of the apertures may be positioned in the transitions from the depressed portions of the peaks to the unmodified apex sections.

A tower packing element (100), a tower packing (300), a packing tower, and a mixer comprising the tower packing element (100) are provided. The tower packing element (100) are manufactured by a deformed plate and comprises a plurality of strip assemblies (10) arranged along a longitudinal direction of the tower packing element (100) and a connecting plate portion (20) connected between adjacent strip assemblies (10). Each of the strip assemblies (10) defines a central passage (30) therein, and the central passage (30) is extended in a lateral direction of the tower packing element (100). The connecting plate portion (20) is extended along the lateral direction of the tower packing element (100). The adjacent strip assemblies (10) and the connecting plate portion (20) connected therebetween define a side passage (40) parallel to the central passage (30).

A tower packing element (100), a tower packing (300), a packing tower, and a mixer comprising the tower packing element (100) are provided. The tower packing element (100) are manufactured by a deformed plate and comprises a plurality of strip assemblies (10) arranged along a longitudinal direction of the tower packing element (100) and a connecting plate portion (20) connected between adjacent strip assemblies (10). Each of the strip assemblies (10) defines a central passage (30) therein, and the central passage (30) is extended in a lateral direction of the tower packing element (100). The connecting plate portion (20) is extended along the lateral direction of the tower packing element (100). The adjacent strip assemblies (10) and the connecting plate portion (20) connected therebetween define a side passage (40) parallel to the central passage (30).

Provided is an NMP recovery system 1 for causing NMP-containing gas to contact NMP-absorbing water, including: fillers (10A) to (10D) that are permeable to the water and hold the water, wherein the permeated water moves according to gravity to flow out from the fillers; an NMP-containing gas distribution unit (30) for distributing the NMP-containing gas so as to cause the NMP-containing gas to contact the water held by the fillers (10A) to (10D); and a water distribution unit (40) for distributing the water so as to make the water permeate through the fillers (10A) to (10D). In the fillers (10A) to (10D), the NMP-containing gas is made to contact the NMP-absorbing water. Accordingly, NMP in the NMP-containing gas is absorbed in the water, so that the NMP is separated from the NMP-containing gas.

A tower packing element, a tower packing, a packing tower, and a mixer comprising the tower packing element are provided. The tower packing element are manufactured by a deformed plate and comprises a plurality of strip assemblies arranged along a longitudinal direction of the tower packing element and a connecting plate portion connected between adjacent strip assemblies. Each of the strip assemblies defines a central passage therein, and the central passage is extended in a lateral direction of the tower packing element. The connecting plate portion is extended along the lateral direction of the tower packing element. The adjacent strip assemblies and the connecting plate portion connected therebetween define a side passage parallel to the central passage.

A structured packing element for a column for at least one of mass transfer and heat exchange between a heavy fluid phase and a light fluid phase. The structured packing element comprises at least two layers of a grid comprising openings that are surrounded and separated from each other by separating elements. At least two of the layers are arranged in a longitudinal direction parallel and in touching contact with each other such that an open space extending from one end to an opposite end of the layers is provided between the layers such that at least one of the heavy fluid phase and the light fluid phase may flow therethrough. An average width of at least 50% of the separating elements between adjacent openings is at least 15 times a layer material thickness and is between 70% and 125% of an average hydraulic diameter of the adjacent openings.