A pillar-shaped honeycomb structure, comprising an outer peripheral side wall; first cells having an opening on the first end surface and having a sealing portion on the second end surface; and second cells adjacent to the first cells with partition walls interposed therebetween and having a sealing portion on the first end surface and having an opening on the second end surface; wherein the outer peripheral side wall, the partition walls, and the sealing portions are fired, and comprise cordierite as a main component and one or more sintering aids selected from ceria, zirconia, and titania; wherein in the partition walls, assuming an average porosity of a portion in a range A, and a portion in a range B is P.sub.1 (%); and assuming an average porosity of a portion in a range C is P.sub.2 (%), 4P.sub.1P.sub.27 is satisfied.

An oxygen concentrator device comprising at least 2 separation vessels with a feed end and a product end, and a set of manifolds comprising at least one feed manifold attached to the feed end of the separation vessels and at least one equalization manifold attached to the product end of the separation vessels. The feed manifold comprises compression ports and valving; vacuum ports and valving; and, an upstream headspace equaling 2-6% of the total sorbent volume in the combined sieve beds. The equalization manifold comprises equalization ports and valving; and, a downstream headspace equaling 2-6% of the total sorbent volume in the combined sieve beds. The ratio of compression, vacuum, and equalization Cv to total sorbent volume is

[00001]$0.0005-0.005\left(\frac{\mathrm{gal}}{\min }\right)\left(\frac{1}{L_S}\right).$

Also, a method for concentrating oxygen, providing the set of manifolds described above and operating the oxygen concentrator without separately purging the sieve bed with an unused gas.

A surgical treatment system for contaminated air streams having particulate contamination, polar contamination and/or nonpolar contamination in the gas or vapor stream. A surgical smoke plume treatment system and method provide or define a multi-stage treatment process that mechanically filters the air stream, followed by nonpolar decontamination and then polar decontamination or treatment. The system may be used stand alone or incorporated and used with other surgical instruments or incorporated into an air handler adapted to decontaminate an air stream. A desiccant may optionally be used to remove water from the air stream.

A portable skid arrangement for processing renewable natural gas includes a frame and a plurality of gas separation membranes selectively coupled to the frame. Each gas separation membrane includes: an inlet structured to be in communication with, and to receive unprocessed gas from, a supply line; a flare outlet structured to be in communication with, and to disperse unwanted filtered gas separated from the unprocessed gas to a flare line; and a primary outlet structured to be in communication with, and to disperse remaining gas after the filtered gas has been separated from the unprocessed gas to an outlet line.

Systems and methods for gas scrubbing. A gas scrubbing system includes a gas scrubbing chamber including a pressure sensor, a level safety high switch (LSH), and a level safety high high switch (LSHH). The system further includes a liquid pump connected to the gas scrubbing chamber that is in communication with the LSH, and an automatic control valve (ACV) coupled to an inlet for the gas scrubbing chamber. The ACV is in communication with the LSHH. The system also includes a gas compressor, or a vapor blower coupled to an outlet for the gas scrubbing chamber. The gas scrubbing system is disposed on a skid.

The present disclosure relates to a carbon capture adapter that may attach to high air flow locations. A carbon capture adapter may utilize the air flow of a high air flow location to allow for capture of unfiltered air, allowing for carbon removal and the scrubbing of the unfiltered air. The carbon capture adapter may comprise carbon sensors that may detect carbon levels of the air before and after the carbon has been scrubbed or removed from the ambient air. The carbon capture adapter may capture and transform the carbon into secondary substances that may be useful unto itself. The carbon capture adapter will have all inputs, outputs, processes, and flows that meet all aspects of a closed loop system that is specifically designed for CCS. The carbon capture adapter may be at least temporarily secured to at least one portion of a vehicle.