An ethylene oxide adsorption recovery system includes a tower body defining a gas channel extending longitudinally therein. A sidewall of the tower body further comprises a plurality of mounting holes disposed longitudinally along the side wall and in communication with the gas channel. A bottom portion of the tower body includes a first pipe in communication with the gas channel, and a top portion of the tower body includes a second pipe in communication with the gas channel. A plurality of adsorption panels is coupled to the tower body through corresponding respective mounting holes of the plurality of mounting holes, each of the plurality of adsorption panels extends into the gas channel. A sealing door is movably coupled to the sidewall of the tower body and configured to selectively fix each of the plurality of adsorption panels to a respective mounting hole of the plurality of mounting hole.

An ethylene oxide adsorption recovery system includes a tower body defining a gas channel extending longitudinally therein. A sidewall of the tower body further comprises a plurality of mounting holes disposed longitudinally along the side wall and in communication with the gas channel. A bottom portion of the tower body includes a first pipe in communication with the gas channel, and a top portion of the tower body includes a second pipe in communication with the gas channel. A plurality of adsorption panels is coupled to the tower body through corresponding respective mounting holes of the plurality of mounting holes, each of the plurality of adsorption panels extends into the gas channel. A sealing door is movably coupled to the sidewall of the tower body and configured to selectively fix each of the plurality of adsorption panels to a respective mounting hole of the plurality of mounting hole.

The present disclosure discloses a device, system, and method for treating an ethylene oxide waste gas. The system includes a first pressure swing adsorption tower, a first thermostatic assembly, a gas storage tank, a first branch pipe, and a second branch pipe. The first pressure swing adsorption tower comprises a first accommodating chamber which accommodates an adsorption material. A first vent port and a first exhaust port are in communication with the first accommodating chamber. The first pressure swing adsorption tower is partially disposed in the first thermostatic assembly. The gas storage tank comprises a gas inlet/outlet port. The first branch pipe and the second branch pipe are in communication with the first vent port. The first branch pipe couples the first vent port with the gas inlet/outlet port and the second branch pipe introduces an ethylene oxide waste gas into the first pressure swing adsorption tower.

An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr BETP butane loading step.

The invention provides a scrubbing column for cleaning gas streams laden with absorbent residues, for example with methanol, and also with solid particles, for example with fuel dust. The gas scrubbing is effected by means of a random packing disposed in the lower region of the scrubbing column and the gas scrubbing of the gas stream laden solely with absorbent residues but not with solid particles by means of a structured packing disposed in the upper region of the scrubbing column. The use of the scrubbing column according to the invention in the integrated plant system between a gasification plant and a plant for gas scrubbing which is operated by the Rectisol process, for example, offers particular advantages with regard to its industrial employability owing to the possible connections described, which bring synergies for efficient operation of the integrated plant system.

Disclosed are a system and a method for desulfurization and denitrification of an alumina calcination flue gas, and a use. The system comprises an ozone generator (1), a red mud pre-impregnation slurry scrubbing tower (3), and a red mud pre-impregnation tank (5) and a red mud pre-impregnation clear liquid scrubbing tower (10). NO.sub.x in a flue gas is oxidized into a high valence oxynitride by ozone, and with the red mud as an absorbent, the synergistic absorption of SO.sub.2 and NO.sub.x in the flue gas is achieved, while the dealkalization of the red mud is achieved. By means of the synergistic catalytic oxidation of metal ions such as Fe.sup.3+ in a red mud slurry and ozone, the synergistic absorption of sulfur and oxynitride is prompted and the material consumption of the subsequent desulfurization and denitrification is reduced; and the use of a structure of staged absorption in two towers overcomes the problem of the difficulty in absorbing NO.sub.2 with a low O.sub.3/NO.sub.x molar ratio by enhancing absorption with sodium alkali in a second stage tower, while decreasing the consumption of and risk of escape of the ozone, wherein same has the advantages of a high purification efficiency and a low operation cost, and has a stronger applicability to the alumina calcination flue gas.

A dry filter 1 to be used in particular in underground mining and tunnel construction having a frame construction 17 into which the required part housings 25-28 can be inserted from the side. The required partition wall 8 is arranged so that an optimal large filtering surface is available both for the incoming raw gas and for the outflowing clean gas. Raw gas duct 5 and clean gas duct 6 run horizontally one above the other and are separated from each other by the sloping 8. This means that a very large filtering surface is available.

Disclosed herein is a system for the removal of volatile organic compounds, carbon monoxide and nitrogen oxides from off-gas even at high NO.sub.2 to NO.sub.x ratios, wherein the amount of NO.sub.2 within NO.sub.x is higher than or equal to 50 mol-%, comprising a source of ammonia, means for introducing ammonia into a catalytic article having an SCR functionality; a catalytic article having both an oxidation and an SCR functionality, the catalytic article comprising a catalyst substrate and a catalyst composition comprising at least one platinum group metal and/or at least one platinum group metal oxide, at least one oxide of titanium and at least one oxide of vanadium, wherein the washcoat is located in and/or on the walls of the catalyst substrate: means for measuring the amount of NO.sub.x and/or the ammonia slip between the outlet end of the catalytic article and the stack or at the stack, at least one carbon monoxide source, and means for introducing carbon monoxide into the catalytic article. Optionally, an SCR catalytic article can be placed upstream of downstream of the cata-lytic article having both an oxidation and an SCR functionality. Also disclosed is a method for the removal of volatile organic compounds, carbon monoxide and nitrogen oxides from off-gas introducing carbon monoxide in order to keep the amount of NOx and/or the ammonia slip between the outlet end of the catalytic article and the stack or at the stack at predetermined values. The method makes use of the system according to the invention. The system and the method can be used for the cleaning of flue gas.

The present disclosure discloses a device, system, and method for treating an ethylene oxide waste gas. The system includes a first pressure swing adsorption tower, a first thermostatic assembly, a gas storage tank, a first branch pipe, and a second branch pipe. The first pressure swing adsorption tower comprises a first accommodating chamber which accommodates an adsorption material. A first vent port and a first exhaust port are in communication with the first accommodating chamber. The first pressure swing adsorption tower is partially disposed in the first thermostatic assembly. The gas storage tank comprises a gas inlet/outlet port. The first branch pipe and the second branch pipe are in communication with the first vent port. The first branch pipe couples the first vent port with the gas inlet/outlet port and the second branch pipe introduces an ethylene oxide waste gas into the first pressure swing adsorption tower.

A method for trapping noble gas atoms and molecules in oxide nanocages that includes providing oxide nanocages on a metallic substrate, ionizing a noble gas to form noble gas cations, applying a voltage to the metallic substrate, contacting the oxide nanocages with the noble gas cations, and deionizing the cations to form noble gas atoms and molecules that are trapped within the oxide nanocages. In one embodiment of the present device, polygonal prism organosilicate cages on a ruthenium thin film can trap noble gases.