Provided herein is a gas mixer for the safe mixing of a hydrocarbon containing gas with a gaseous oxidant. The gas mixer and method for mixing described includes a closed mixing vessel where bubbles of gas injected at the bottom of the vessel are mixed during their rise to the top of the vessel, forming a homogeneous mixture that can safely be removed. This simple design and method allows for safe mixing of gases and is applicable to catalytic oxidative processes such as oxidative dehydrogenation of paraffins where there is a risk of thermal runaway of reactions.

The present technique presents a structured packing module 100 for a gas phase reactor 2, the structured packing module 100 comprising a structured packing 1 having a central axis 5x extending along a longitudinal direction, and may further comprise an inner tube 5 extending coaxially with the structured packing and along the longitudinal direction. The structured packing 1 includes a plurality of corrugated sheets 10, 20, 30, each arranged circumferentially around the central axis 5x and having a first end 101 and a second end 102 spaced apart from each other along the longitudinal direction. Each corrugated sheet 10, 20, 30 includes corrugations 9 extending between the first end 101 and the second end 102 and disposed at an acute angle A greater than or equal to 5 degree and less than or equal to 30 degree with respect to a line 5y parallel to the central axis 5x. The corrugated sheets 10, 20, 30 are arranged to radially overlap with each other such that the corrugations 9 of adjacently disposed corrugated sheets 10, 20, 30 are arranged in a crisscross relationship. The structured packing module 100 includes a gas flow path 40 comprising at least one inter-sheet gas flow path 42 defined between the adjacently disposed corrugated sheets 10, 20, 30.

A structured packing module for crossflow applications is provided and includes a plurality of corrugated structured packing sheets positioned in an upright, parallel relationship to each other. The corrugations of adjacent structured packing sheets are in contact with each other and extend at a crossing angle. Apertures and raised ridges may be positioned on sidewalls of the corrugations. The structured packing module may be used in a crossflow contactor, such as in a process for removing carbon dioxide from air.

A packing device for mass and heat transfer with a subject fluid includes a housing having opposing ends, and subject fluid openings at each opposing end defining a subject fluid flow path for at least one subject fluid flowing through the packing device. A plurality of mass and heat transfer plates each include an interior heat exchange fluid channel disposed between interior heat transfer surfaces of the mass and heat transfer plates. A heat exchange fluid inlet and fluid outlet can supply and remove heat exchange fluid to the heat exchange fluid channels of the mass and heat transfer plates. The mass and heat transfer plates can be oriented to define there between fluid flow channels for the subject fluid. A method and system for mass and heat transfer with a subject fluid, and a method and system for the removal of CO.sub.2 from a gas stream are disclosed.

A packing for capturing carbon dioxide (CO.sub.2) from a dilute includes at least one panel that includes a mesh material configured to be wetted by a CO.sub.2 capture solution and that defines a gas channel having a first dimension defined along a first direction and a second dimension defined along a second direction different than the first direction, the gas channel configured to receive a flow of CO.sub.2-laden gas from the dilute gas source in the second direction and contact the flow of CO.sub.2-laden gas with the CO.sub.2 capture solution on the mesh material.

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 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 fill sheet for cooling heat transfer fluid in a cooling tower includes an air intake end, an air outlet end, a top edge and a bottom edge. The air outlet end is positioned opposite the air intake end along a lateral axis. The top edge connects the air intake end and the air outlet end and the bottom edge also connects the air intake end and the air outlet end. The bottom edge is positioned opposite the top edge along a vertical axis. A plurality of flutes extends generally parallel to the lateral axis between the air intake end and the air outlet end. An offset extends generally parallel to the vertical axis. A first flute of the plurality of flutes transitions from a first peak at a first side of the offset to a first valley at a second side of the offset.

The disclosure provides a structure that is used in the treatment of a fluid. The packing structure comprises a body having an axis. The packing structure also has at least one curved flow path that rotates around, and extends along at least a portion of, the axis of the body.

A fill sheet for cooling heat transfer fluid in a cooling tower includes an air intake end, an air outlet end, a top edge and a bottom edge. The air outlet end is positioned opposite the air intake end along a lateral axis. The top edge connects the air intake end and the air outlet end and the bottom edge also connects the air intake end and the air outlet end. The bottom edge is positioned opposite the top edge along a vertical axis. A plurality of flutes extends generally parallel to the lateral axis between the air intake end and the air outlet end. An offset extends generally parallel to the vertical axis. A first flute of the plurality of flutes transitions from a first peak at a first side of the offset to a first valley at a second side of the offset.

An expandable center arrangement for a reactor is disclosed. The arrangement comprises an expansion tube; a center support inside the expansion tube and three or more spring elements. The spring elements are fastened to the center support and arc out to the expansion tube. A reactor is also disclosed.