Sorptive gas separators can employ contactors having various sorbents blended together. The various sorbents used to make a blended sorbent contactor can be selected for their various physical and chemical properties, which will allow operators to customize formulations and structural configurations to obtain optimum performance of sorptive gas separators using blended sorbents.

Smoking article include a smokable material and an activated carbon particle downstream of the smokable material. The activated carbon particle is produced from a whole seed. The activated carbon particle has a length, width and height. At least two of the length width and height are independently in a range from about 1 mm to about 7.5 mm. The particles can be spheroids, in which case the length, width and height would be the same or similar.

A method for removing contaminants from a gas stream including contacting a gas stream comprising hydrocarbons and sulfur contaminants with a modified nanocomposite adsorbent. Also provided are compositions and processes for forming compositions of a modified nanocomposite adsorbent composition for removing sulfur contaminants from a hydrocarbon stream. Additionally, provided is system for removing sulfur impurities from a gaseous hydrocarbon stream, where the system includes a plurality of adsorbent vessels arranged in series, where the adsorbent vessels include an emulsion of a modified nanocomposite adsorbent composition.

A material for removing a contaminant, the material including an adsorption material for adsorption of a contaminant and a decomposition material for decomposition of a contaminant, wherein the adsorption material and the decomposition material are complexed with each other, and a contaminant decomposition onset temperature of the decomposition material is equal to or lower than a contaminant desorption onset temperature of the adsorption material.

A monolithic open cell structure apparatus including an open cell structure housing including a first side, a second side opposite the first side, a first opening located at the first side, and a second opening located opposite the first opening at a second side. The monolithic open cell structure apparatus also including a filtration portion extending from the first side to the second side within the open cell structure housing. The monolithic open cell structure apparatus further including a retaining partition that at least partially encloses the filtration portion within the open cell structure housing. The monolithic open cell structure apparatus is a single piece including a unitary structure.

An ink for three dimensional printing a ceramic material includes metal oxide nanoparticles and a polymer resin, where a concentration of the metal oxide nanoparticles is at least about 50 wt % of a total mass of the ink. A method of forming a porous ceramic material includes obtaining an ink, where the ink comprises a mixture of metal oxide nanoparticles and a polymer, forming a body from the ink, curing the formed body, heating the formed body for removing the polymer and for forming a porous ceramic material from the metal oxide nanoparticles. The forming the body includes an additive manufacturing process with the ink.

Embodiments of the disclosure can include a circuit breaker, comprising an enclosure comprising: arcing contacts movable axially relative to each other, between an open position of the circuit breaker in which the arcing contacts are separated from each other and a closed position of the circuit breaker in which the arcing contacts are in contact with each other; and a gas inlet configured to blow an arc-control gas to interrupt an electric arc during movement of the arcing contacts from the closed position to the open position, wherein the arc-control gas comprises at least 80% of carbon dioxide; wherein the enclosure further comprises an adsorbing material, which adsorbs carbon monoxide after ionization of the carbon dioxide during arcing, said adsorber being a metal-organic framework comprising nickel and/or iron.

A DAC method as well as a unit containing an adsorber structure having an array of adsorber elements with a support layer and on both sides thereof a sorbent layer (1, 2), wherein the adsorber elements are parallel and spaced apart forming parallel fluid passages for flow-through of ambient atmospheric air and steam. The method involves the following sequential and repeating steps: (a) adsorption by flow-through; (b) isolating the sorbent; (c) injecting a stream of saturated steam through the parallel fluid passages and inducing an increase of the temperature; (d) extracting desorbed carbon dioxide from the unit and separating it from steam; (e) bringing the sorbent material to ambient temperature conditions wherein in step (a) the speed of the air is in the range of 2-8 m/s, and wherein at least in step (d) the speed of the steam is at least 0.2 m/s.

Sorbent materials comprising a nanofiber composite including a polymeric material defining a continuous phase and at least one metal organic framework (MOF) material defining a discontinuous phase are provided. The at least one MOF material is dispersed throughout the continuous phase of the polymeric material. Fibrous mats comprising the sorbent materials are also provided. Water harvesting devices utilizing the sorbent materials are also provided.

The present invention relates to the use of a zeolitic adsorbent material based on faujasite (FAU) zeolite crystals, the Si/AI mole ratio of which is between 1.00 and 1.20, and the non-zeolitic phase (NZP) content of which is such that 0<NZP≤25%, for the non-cryogenic separation of industrial gases by (V)PSA, in particular of the air gases.

The invention also relates to respiratory assistance machines comprising at least said zeolitic adsorbent material.