A contaminant scrubber of a heating, ventilation, and air conditioning (HVAC) system includes a housing having a first side wall and a second side wall opposite to the first side wall. The contaminant scrubber also includes a first compartment formed within the housing, a second compartment formed within the housing and having a cartridge set removably disposed therein, and a third compartment formed within the housing, where the second compartment is positioned between the first compartment and the third compartment. The contaminant scrubber also includes a first cross-member beam extending along a first bottom end of the first compartment and a second top end of the second compartment, where the first cross-member beam extends from the first side wall of the housing to the second side wall of the housing. The contaminant scrubber also includes a second cross-member beam extending along a second bottom end of the second compartment and a third top end of the third compartment, wherein the second cross-member beam extends from the first side wall of the housing to the second side wall of the housing.

The present invention concerns the use, for gas separation, of at least one zeolite adsorbent material comprising at least one FAU zeolite, said adsorbent having an external surface area greater than 20 m.sup.2.Math.g.sup.1, a non-zeolite phase (PNZ) content such that 0<PNZ30%, and an Si/Al atomic ratio of between 1 and 2.5. The invention also concerns a zeolite adsorbent material having an Si/Al ratio such that 1Si/Al<2.5, a mesoporous volume of between 0.08 cm.sup.3.Math.g.sup.1 and 0.25 cm.sup.3.Math.g.sup.1, a (VmicroVmeso)/Vmicro ratio of between 0.5 and 1.0, non-inclusive, and a non-zeolite phase (PNZ) content such that 0<PNZ30%.

Process and apparatus for producing helium, neon, or argon product gas using an adsorption separation unit having minimal dead end volumes. A purification unit receives a stream enriched in helium, neon, or argon, and a stream is recycled from the purification unit back to the adsorption separation unit in a controlled manner to maintain the concentration of the helium, neon, or argon in the feed to the separation unit within a targeted range.

Disclosed herein are rapid cycle pressure swing adsorption (PSA) process for separating O.sub.2 from N.sub.2 and/or Ar. The processes use a carbon molecular sieve (CMS) adsorbent having an O.sub.2/N.sub.2 and/or O.sub.2/Ar kinetic selectivity of at least 5 and an O.sub.2 adsorption rate (1/s) of at least 0.2000 as determined by linear driving force model at 1 atma and 86 F.

Systems and methods for improving operation of a heating, ventilation, and air conditioning system, which includes a scrubber unit coupled to an air handling unit via a return air conduit. The scrubber unit includes a contaminant filter, which sorbs air contaminants from a surrounding environment when at a target pressure differential and releases previously sorbed air contaminants into the surrounding environment when at target temperature, a return inlet actuator coupled to a return inlet damper, and scrubber control circuitry programmed to determine parameters of outside air and instruct the return inlet actuator to ramp the return inlet damper from a closed position to an open position during a bleed phase of a regeneration cycle to enable venting of the previously sorbed air contaminants using return air when the parameters of the outside air are not within corresponding target parameter ranges.

System and methods for improving implementation of a scrubber unit in a heating, ventilation, and air conditioning system. The scrubber unit includes a housing that house a plurality of filter cartridges, which each includes a chemical compound that facilitates sorbing air contaminants. The housing includes a first sidewall and a second sidewall. The scrubber unit includes an internal wall enclosed within the housing, a cross-member coupled between the first sidewall and the second sidewall perpendicular to the internal wall, and a contaminant filter that includes the plurality of filter cartridges coupled between a top cartridge deck and a bottom cartridge deck, in which the bottom cartridge deck is coupled to the cross-member when the contaminant filter is completely enclosed within the housing to facilitate reducing likelihood of the bottom cartridge deck deforming under weight of the plurality of filter cartridges.

The disclosure provides for an adsorbent bed assembly for separation of gaseous mixtures. The assembly includes a body defining an interior cavity. The body includes an outer shell, and first and second ends engaged with the outer shell that include inputs/outputs. A central support structure is positioned within the interior cavity and is engaged with the body or forms a portion thereof. Anti-telescoping devices are positioned about the central support structure, at least one of which is affixed to the central support structure. Each anti-telescoping device includes a plurality of spokes extending within the interior cavity from or proximate the central support structure towards the outer shell.

The present invention relates to a process cycle that allows for the stable production of mid-range purity oxygen from air, using traditional system designs. Typical cycles have a limited production benefit when generating O.sub.2 at lower than 90% purity, however they suffer a production loss at higher purity. The process cycles of the invention are capable of producing significantly more contained O.sub.2 at a lower purity. In addition to enhanced production capacity, lower power consumed per mass of product and more stable product purity and flow are realized by the process of the invention compared to traditional alternatives.

Systems and methods to facilitate controlling operation of a scrubber unit implemented in a heating, ventilation, and air conditioning system. The scrubber unit includes a scrubber housing, which encloses a contaminant filter; and a control panel coupled in a sidewall of the scrubber housing. The control panel includes a controller module, which includes a first module housing that encloses scrubber control circuitry and a first plurality of input/output ports. The scrubber control circuitry communicates with first equipment in the scrubber unit via the first plurality of input/output ports. The control panel includes an input/output module, which includes a second module housing that encloses a second plurality of input/output ports; and a communication bus coupled between the controller module and the input/output module that enables the scrubber control circuitry to communicate with second equipment in the scrubber unit via the second plurality of input/output ports.

A method and system for manufacturing and using a self-supporting structure in processing unit for adsorption or catalytic processes. The self-supporting structure has greater than 50% by weight of the active material in the self-supporting structure to provide an open-celled structure providing access to the active material. The self-supporting structures, which may be disposed in a processing unit, may be used in swing adsorption processes and other processes to enhance the recovery of hydrocarbons.