Abstract:
Die Erfindung betrifft eine beheizbare Kraftstoffdampfspeicher- und Rückhaltevorrichtung umfassend einen Speicherbehälter (2), der wenigstens ein Speichervolumen (3,4,5) umschließt, das mit einem Adsorbens für Kohlenwasserstoffe gefüllt ist, umfassend einen Dampfeinlassanschluss (6), einen Atmosphärenentlüftungs- anschluss (7) und einen Rückspülanschluss (8) an den Speicher- behälter (2) sowie wenigstens eine elektrische Heizeinrichtung, wobei die elektrische Heizeinrichtung wenigstens ein erstes Folienheizelement (11) umfasst, das wenigstens ein Teilvolumen des Adsorbens wenigstens teilweise umschließt.
Abstract:
The invention relates to a device and a process for controlled transport of a gaseous compound into and/or out of a metal-organic framework (MOF) material, which preferably is in the form of a MOF membrane, and to the use of the device as an absorption and/or desorption device for a gaseous compound, and/or as a separation device for a gaseous compound from a gas composition.
Abstract:
A process for purifying polluted air, includes passing polluted air through a fluidized bed of micro-organism-containing primary particulate media so that, as the polluted air passes through the fluidized bed, organic pollutants therein are removed by the micro-organisms. Partially purified air containing a lower level of the organic pollutants than the polluted air that enters the fluidized bed, emerges from the fluidized bed. The partially purified air is passed through a static bed of secondary particulate media thereby to remove residual organic pollutants from the partially purified air. Purified air is thus produced.
Abstract:
Polymeric sorbents for aldehydes including formaldehyde are provided. More particularly, the polymeric sorbents are a reaction product of a divinylbenzene/maleic anhydride precursor polymeric material with a nitrogen-containing compound. The nitrogen-containing compound is covalently attached to the resulting polymeric sorbent. Additionally, methods of sorbing aldehydes (i.e., aldehydes that are volatile under use conditions) on the polymeric sorbents and compositions resulting from the sorption of aldehydes on the polymeric sorbents are provided. The polymeric sorbents typically are porous with the pores often being in the size range of mesopores and/or micropores.
Abstract:
The invention is based on the use of heating resistors by means of a temperature regulation circuit at specific points on a catalytic converter so that said catalytic converter starts working in the least time possible, reducing the greater quantity of substances having little molecular stability or which are harmful to the environment, Equally, small protuberances are affixed to each duct of the monolith to increase the turbulence of the exhaust gases and increase contact with the reduction and oxidation agents, be they platinum, palladium or rhodium.
Abstract:
A mineral polymer for reducing pollutants, in particular for gas absorbing, absorbing pollutant volatile organic compounds such as volatile organic hydrocarbons and/or capturing particulate pollutants. The mineral polymer may be a metakaolin-based mineral polymer with a porous or non -porous structure. The use of the mineral polymer for reducing pollutants includes for absorbing one or more pollutant gases, such as NOx (such as NO 2 ), SOx (such as SO 2 ) and/or CO 2 , for absorbing pollutant volatile organic compounds such as volatile organic hydrocarbons and/or for capturing particulate pollutants, such as those produced by diesel engines. The pollutants are removed directly from the engine exhaust, from a ventilation system, or at the road side. A method for reducing pollutants comprises the steps: (i) providing the mineral polymer; (ii) exposing said mineral polymer to one or more pollutants; and optionally, (iii) regenerating the capability of the mineral polymer to reduce pollutants. Regeneration may be carried out by washing with a solvent, or heating. The solvent may be water or another suitable solvent.
Abstract:
A process for component separation in a polymer production system comprising: (a) separating a polymerization product into a gas stream and a polymer stream; (b) processing the gas stream in distillation columns to yield a light hydrocarbon stream (LHS) comprising ethylene and ethane; (c) contacting LHS with a purged hydrocarbon adsorber to yield a loaded hydrocarbon adsorber and a non-adsorbed gas stream, wherein ethane is adsorbed by the purged hydrocarbon adsorber at a first pressure to yield adsorbed ethane, and wherein the non-adsorbed gas stream comprises recovered ethylene; (d) contacting the loaded hydrocarbon adsorber with a sweeping gas stream at a second pressure to yield an unloaded hydrocarbon adsorber and a recovered adsorbed gas stream comprising the sweeping gas stream and desorbed ethane; and (e) contacting the unloaded hydrocarbon adsorber with the sweeping gas stream at the first pressure to yield the purged hydrocarbon adsorber and a spent sweeping gas.