A fluid network controls a gaseous flow, the fluid network having several pre-concentration units including at least one first series in which the pre-concentration units are linked in series and each defined by a rank j in the series, with j ranging from 1 to m and m being greater than or equal to 2. Each pre-concentration unit of the network includes a cavity filled with an adsorbent material, at least one first fluid pathway emerging in the cavity, at least one second fluid pathway emerging in the cavity. Finally, each pre-concentration unit includes a component for heating the cavity.

A process for producing a hydrocarbon stream with reduced CS.sub.2 content, comprising contacting a hydrocarbon stream containing CS.sub.2 with a solid reactive CS.sub.2-scavenger which contains primary and/or secondary amino group-bearing hydrocarbon residues attached to a solid support, at a temperature in the range of from 0 to 300° C., and separating the obtained reaction product of and reactive CS.sub.2-scavenger from the hydrocarbon stream.

Methods for fabrication of and use of magnesium oxide sorbents for room temperature carbon dioxide adsorption are provided. In accordance with one aspect, a method for fabrication of sorbents is provided which includes using calcination to obtain MgO—Mg(OH).sub.2 nano-composites and aging the MgO—Mg(OH).sub.2 nano-composites to form nano MCHs for room temperature carbon dioxide adsorption. According to another aspect, a method for fabrication of sorbents which includes fabrication of monoclinic magnesium malate tetrahydrate (C.sub.8H.sub.10MgO.sub.10.4H.sub.2O) and use of such sorbents for room temperature carbon dioxide adsorption is provided.

The invention relates to a sachet that absorbs ethylene or other gases for containers of fresh produce intended for the retail market which is formed by two sheets welded together at the edges (4), at least one of the sheets, for example, the bottom sheet (2), being made with a porous, water-repellent, breathable material and optionally combined with another sheet (3) of waterproof material, and ethylene-absorbing granules (5) contained therein to absorb gases or other volatile substances produced by fresh produce incorporated in small packages (6), said granules (5) consisting of a substrate impregnated with potassium permanganate or sodium permanganate at a high concentration of between 0.25% and 2%, optionally mixed with activated carbon, such that when the sachet (1) is in contact with moisture generated by the produce, the risk of spotting and contamination by the active ingredient is minimal and absorption efficiency is maintained.

Disclosed is a method for producing a granular adsorbent for carbon monoxide or carbon disulfide separation. According to the method, incipient wet impregnation and sonication are performed simultaneously and the amount of an impregnation solution and the average particle diameter of a particulate adsorbent are adjusted to optimal ranges to produce a granular adsorbent that is evenly and uniformly impregnated with metal ions, achieving significantly improved carbon monoxide and carbon disulfide adsorption capacities. Also disclosed is a granular adsorbent for carbon monoxide or carbon disulfide separation produced by the method. The granular adsorbent has highly stable physical properties, does not cause problems such as pressure drop or line contamination during use, and is simple to produce because the use of a solvent such as a strong acid or base is not required during production. Also disclosed is a separator including the granular adsorbent.

An engine includes an intake manifold and an air-induction system configured to deliver air to the intake manifold. The air-induction system includes a throttle attached to the intake manifold, an air cleaner, conduit connecting between the air cleaner and the throttle to create a flow path therebetween, and a valve disposed in the flow path to be upstream of the throttle and downstream the air cleaner. The valve has a closed position in which the flow path is blocked to hold hydrocarbons within the intake manifold and inhibit emission therefrom and has an open position in which the flow path is unimpeded.

A filter for removing gaseous components from a gas stream. The filter includes a frame with outer members and support members mounted thereto. The filter includes a prefilter layer disposed upstream in the frame and a reactive layer disposed in the frame downstream from the prefilter layer. The reactive layer includes particulate that removes gaseous components from the gas stream. A containment layer is disposed in the frame downstream from the reactive layer. The frame supports the layers from the airstream flowing through the filter. This configuration reduces the quantity of reactive material required and permits significant variability in the reactive materials used on the reactive layers because the different reactive layers have little to no effect on one another.

Disclosed is the use of a composite for extracting one or more metal or contaminating chemical species from an aerial or aqueous medium by selective binding, the composite including at least one porous template functionalized by at least one polymer, the polymer including one of the following chemical functions: primary, secondary or tertiary amine, amide, nitrile, pyridine, pyrole, thiol, thiolether, thiophene, thiadiazole, alcohol/hydroxyl, phenol, catechol, pyragalol, carboxylic acid, aldehyde, ester, acyl, crown ether, phosphate, phosphoryl, epoxide, halogen, haloalkane.

The present invention relates to metal-organic framework characterized in that it comprises a polymer coating; further the invention relates to a process for the preparation of said polymer-coated metal-organic framework and a process for recycling after degradation. The polymer coated MOFs of this invention find application in a broad range of technologies and therapeutic areas.

Filter material, mainly in form of industrial remnants from the production of the filter fillings, is processed without the intake of the heat in such a way that it is cut in the disintegrator (4) at the presence of the air, where the material is during retention time repeatedly led to the contact with the rotating blades and bunches emerge in the disintegrator (4) through aeration. The flat carrier (3) is thus at least partially disintegrated to the original fibers (1); the released fibers (1) intertwine into bunches and the active carbon (2) is released from the original bond with the flat carrier (3). The swirl (vortex) created inside the disintegrator (4) carries the dust particles of the active carbon (2) and they adhere to the surface of the fibers (1). Part of the released active carbon (2) is—after the separation—carried away from the emergin bunches, which in the lower part of the disintegrator (4) run through the sieve out of the disintegrator (4). The resulting product is advantageously applicable as heat and noise isolation in all fields of technology, for example construction. The separated active carbon (2) in form of granules is also a resulting product of processing.