B01J20/12

Systems and methods for gas treatment

A system and process for the recovery of at least one halogenated hydrocarbon from a gas stream. The recovery includes adsorption by exposing the gas stream to an adsorbent with a lattice structure having pore diameters with an average pore opening of between about 5 and about 50 angstroms. The adsorbent is then regenerated by exposing the adsorbent to a purge gas under conditions which efficiently desorb the at least one adsorbed halogenated hydrocarbon from the adsorbent. The at least one halogenated hydrocarbon (and impurities or reaction products) can be condensed from the purge gas and subjected to fractional distillation to provide a recovered halogenated hydrocarbon.

Systems and methods for gas treatment

A system and process for the recovery of at least one halogenated hydrocarbon from a gas stream. The recovery includes adsorption by exposing the gas stream to an adsorbent with a lattice structure having pore diameters with an average pore opening of between about 5 and about 50 angstroms. The adsorbent is then regenerated by exposing the adsorbent to a purge gas under conditions which efficiently desorb the at least one adsorbed halogenated hydrocarbon from the adsorbent. The at least one halogenated hydrocarbon (and impurities or reaction products) can be condensed from the purge gas and subjected to fractional distillation to provide a recovered halogenated hydrocarbon.

DAUCUS-BASED COMPOSITIONS FOR OXYGEN MODIFIED PACKAGING
20230114362 · 2023-04-13 ·

Disclosed are daucus-based oxygen scavenging compositions and materials, particularly of the carrot species, and their methods of use in containers and packaging of oxygen sensitive products. Further disclosed are daucus-based oxygen scavenging materials used in combination with tea-based oxygen scavenging compositions. Such compositions, materials and containers are of use for preserving the shelf-life of a myriad of products such as foods, pharmaceuticals, cosmetics, tobacco and cannabis.

Composite adsorbents and method of making them

A composition for making composite adsorbents from a mixture of geopolymer, zeolite and activated carbon wherein a geopolymer material, a carbonaceous material, and an alkali activating agent are the components of the mixture. The alkali activating agent to carbonaceous material solid mass ratio is at least 0.25:1, respectively. A process for producing shaped composite adsorbents from the composition is done using conventional means such as mixing, shaping, extrusion and other methods. Alkali activation is used to convert the carbonaceous material to activated carbon, followed by hydrothermal treatment to convert the geopolymer material to zeolites. Shaped composite adsorbents fabricated from the composition of the instant invention are used for adsorption, purification, or other separation applications of liquids and gases.

Litter compositions
11622531 · 2023-04-11 · ·

Provided herein are compositions and methods comprising a fragrance and from about 0.5 weight % to about 5.0 weight % of a granular malodor adsorbent which can be used to eliminate malodor in animal waste. The granular malodor absorbent can be granular molecular sieves or granulated activated carbon and has a pore size from about 0.4 nm to about 2.0 nm and a total surface area from about 100 m.sup.2/g to about 1500 m.sup.2/g.

Litter compositions
11622531 · 2023-04-11 · ·

Provided herein are compositions and methods comprising a fragrance and from about 0.5 weight % to about 5.0 weight % of a granular malodor adsorbent which can be used to eliminate malodor in animal waste. The granular malodor absorbent can be granular molecular sieves or granulated activated carbon and has a pore size from about 0.4 nm to about 2.0 nm and a total surface area from about 100 m.sup.2/g to about 1500 m.sup.2/g.

METHODS AND COMPOSITIONS FOR CONTROLLING FLOW IN CLAY-BASED MATERIALS
20230104861 · 2023-04-06 · ·

The present disclosure provides methods for controlling swelling of a clay when in contact with an aqueous medium. The methods may include contacting clay with a content of an ionic liquid sufficient to modify one or more transport properties of water through the clay. In particular, in some embodiments, the present disclosure provides clay-based animal litter compositions having controlled flow and clump shape, and a related method. The animal litter can include a clay-based liquid absorbing material and at least one ionic liquid.

Method and system for pelletizing spent bleaching earth

The present disclosure includes a process for pelletizing a spent bleaching earth (SBE) into a clay-biocarbon composite including classifying the SBE based on at least one parameter of the SBE, selecting at least one filler compound and mixing the at least one filler compound with the SBE to make a mixture, forming a plurality of pellets out of the mixture, and pyrolyzing the pellets to produce the clay-biocarbon composite. Pyrolyzing a pelleted spent bleaching earth (SBE) may include advancing the pelleted SBE with a distributer to a first thermal chamber for providing even thermal processing, releasing the pelleted SBE to an auger to cool to room temperature, and condensing at least one volatile compound emitted from the pelleted SBE during thermal processing to produce a condensate for reuse.

Method and system for pelletizing spent bleaching earth

The present disclosure includes a process for pelletizing a spent bleaching earth (SBE) into a clay-biocarbon composite including classifying the SBE based on at least one parameter of the SBE, selecting at least one filler compound and mixing the at least one filler compound with the SBE to make a mixture, forming a plurality of pellets out of the mixture, and pyrolyzing the pellets to produce the clay-biocarbon composite. Pyrolyzing a pelleted spent bleaching earth (SBE) may include advancing the pelleted SBE with a distributer to a first thermal chamber for providing even thermal processing, releasing the pelleted SBE to an auger to cool to room temperature, and condensing at least one volatile compound emitted from the pelleted SBE during thermal processing to produce a condensate for reuse.

Inorganic fiber sheet, honeycomb molded body and honeycomb filter

This inorganic fiber sheet contains a glass fiber as a main component, while containing 3 to 20% by mass of an organic fiber having an aspect ratio of 300 to 2000 with respect to a total amount of the inorganic fiber sheet.