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 structured packing module for use in a mass transfer column. Corrugated sheets of structured packing in the structured packing module are held together by fasteners that extend into the corrugated sheets from opposite sides of the structured packing module at an angle of inclination or perpendicularly with respect to the sides of the structured packing module. The fasteners may have an outer surface with protrusions or indentations that resist removal of the fasteners from the structured packing sheets.

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 method of removing and capturing an acid gas from a fluid stream includes exposing the fluid stream to an aqueous scrubbing solution in the presence of a packing element including alternating hydrophobic and hydrophilic features or zones. A related apparatus is also disclosed.

The contacting device for countercurrent contacting of fluid streams and having a first pair of intersecting grids of spaced-apart and parallel deflector blades and a second pair of intersecting grids of spaced-apart and parallel deflector blades. The deflector blades in each one of the grids are interleaved with the deflector blades in the paired intersecting grid and may have uncut side portions that join them together along a transverse strip where the deflector blades cross each other or adjacent opposed ends of the deflector blades and cut side portions that extend from the uncut side portions to the ends of the deflector blades. At least some of the deflector blades have directional tabs and associated openings to allow portions of the fluid streams to pass through the deflector blades to facilitate mixing of the fluid streams.

The contacting device for countercurrent contacting of fluid streams and having a first pair of intersecting grids of spaced-apart and parallel deflector blades and a second pair of intersecting grids of spaced-apart and parallel deflector blades. The deflector blades in each one of the grids are interleaved with the deflector blades in the paired intersecting grid and may have uncut side portions that join them together along a transverse strip where the deflector blades cross each other or adjacent opposed ends of the deflector blades and cut side portions that extend from the uncut side portions to the ends of the deflector blades. At least some of the deflector blades have directional tabs and associated openings to allow portions of the fluid streams to pass through the deflector blades to facilitate mixing of the fluid streams.

A structured packing sheet includes a top interface region, a first turning region, a central region, a second turning region, and a bottom interface region. The central region includes a plurality of corrugations extending thereacross in a linear fashion and arranged generally parallel to each other. The plurality of corrugations are arranged at a first angle with respect to a vertical axis. The top interface region and the bottom interface region include the plurality of corrugations extending thereacross in a linear fashion. The plurality of corrugations are arranged at a second angle with respect to the vertical axis. The second angle is smaller than the first angle. The first turning region and the second turning region include the plurality of corrugations extending thereacross. The plurality of corrugations have a plurality of breaks in the first turning region and the second turning region.

The present disclosure belongs to the technical field of packings, and in particular, to a packing element, a structured packing and an application of the structured packing. The packing element includes a collection-predistribution unit, a fluid uniform distribution unit, and an opening window unit that are sequentially arranged. The fluid uniform distribution unit includes a first substrate and a plurality of orifices arranged on the first substrate. Each orifice is circular and/or semicircular. Each orifice has an equivalent diameter of 1-5 mm. The opening window unit is provided with a plurality of windows, and each window has a length proportional to 0.5 power of the fluid viscosity. Fluid forms a confined free film in the window region of the opening window unit and wall-bounded film on the wall surface region.

A structured packing module for use in a mass transfer column. Corrugated sheets of structured packing in the structured packing module are held together by fasteners that extend into the corrugated sheets from opposite sides of the structured packing module at an angle of inclination or perpendicularly with respect to the sides of the structured packing module. The fasteners may have an outer surface with protrusions or indentations that resist removal of the fasteners from the structured packing sheets.

A structured packing sheet includes a top interface region, a first turning region, a central region, a second turning region, and a bottom interface region. The central region includes a plurality of corrugations extending thereacross in a linear fashion and arranged generally parallel to each other. The plurality of corrugations are arranged at a first angle with respect to a vertical axis. The top interface region and the bottom interface region include the plurality of corrugations extending thereacross in a linear fashion. The plurality of corrugations are arranged at a second angle with respect to the vertical axis. The second angle is smaller than the first angle. The first turning region and the second turning region include the plurality of corrugations extending thereacross. The plurality of corrugations have a plurality of breaks in the first turning region and the second turning region.