Abstract: The present invention relates, on one hand, to a metal cementing apparatus (1) formed by a vessel (2) with a liquid phase formed by a solution (3) containing noble metal, and a solid phase formed by a cementing metal or a less noble metal in contact with the solution (3), where one of said phases moves at a high speed with respect to the other one, and the difference in speeds allows the cementation of the noble metal on the solid phase, and the simultaneous detachment and separation thereof, and comprises means for generating the movement of at least the phase with the high speed and removing means for removing the precipitated noble metal.

Abstract: Some embodiments of the present disclosure relate to a method of regenerating at least one filter medium comprising: providing at least one filter medium, wherein the at least one filter medium comprises: at least one catalyst material; and ammonium bisulfate (ABS) deposits, ammonium sulfate (AS) deposits, or any combination thereof; flowing a flue gas stream transverse to a cross-section of a filter medium, such that the flue gas stream passes through the cross section of the at least one filter medium, wherein the flue gas stream comprises: NOx compounds comprising: Nitric Oxide (NO), and Nitrogen Dioxide (NO2); and increasing an NOx removal efficiency of the at least one filter medium after removal of deposits.

Abstract: The reduction of the acid gas concentration in the flue gas of combustion units that is produced in waste incinerators, by contacting the flue gas with a powder composition including an alkaline earth metal salt and an ammonium salt. The contact may be carried out in a combustion furnace and/or in a post-combustion chamber of the combustion units.

Abstract: A sorbent composition for pelletized carbon products having high strength and water resistance is disclosed. Also disclosed are methods of producing and using sorbent compositions of pelletized carbon products having higher strength and water resistance. Other embodiments include a system and method for removing contaminants from a process gas stream.

Abstract: A wet scrubber at least comprises a treatment tank, a jet pipe, a gas-liquid separation component, and a spray component. The treatment tank is used to contain a cleaning solution. The jet pipe is disposed in the treatment tank, by injecting the cleaning solution to suck in an exhaust gas, and mixing the cleaning solution with the exhaust gas, and directly injecting into the cleaning solution contained in the treatment tank, thereby forming a plurality of microbubbles in the cleaning solution to dissolve the exhaust gas and capture solid particles in the exhaust gas. The gas-liquid separation component is used to filter and block water mist raised in the cleaning solution. The spray component is used to prevent the solid particles from clogging the gas-liquid separation component.

Abstract: An exemplary sequestering system and method are provided for carbon dioxide sequestration using at least one in-situ chemical species in water to produce at least one reaction product that sequesters carbon dioxide. In one embodiment, the automated system includes a reaction vessel and one or more diffusers. In one implementation, the reaction vessel is configured to receive a water supply, wherein the water includes at least one in-situ chemical species, and wherein the reaction vessel is further configured to receive a gas supply. The one or more diffusers are configured to receive at least a portion of the gas supply to diffuse carbon dioxide gas into at least a portion of the water, and wherein the reaction vessel is further configured to contain a mixture to allow the at least one in-situ chemical species to react with the carbon dioxide gas and forming at least one reaction product.

Abstract: A membrane module includes a housing. The housing includes a housing, comprising: a first plurality of porous hollow fiber membranes, and a second plurality of porous hollow fiber membranes different from the first plurality of porous hollow fiber membranes. The first plurality of porous hollow fiber membranes has a first length, and the second plurality of porous hollow fiber membranes has a second length that is at least 1.1 times greater than the first length. The membrane module can be used in separation methods, such as membrane distillation methods.

Abstract: A process for producing bis(fluorosulfonyl) imide includes providing a solution comprising fluorosulfonic acid and urea, the solution maintained at a solution temperature from about 0° C. to about 70° C.; reacting the solution in the presence of a reaction medium at a reaction temperature from 80° C. to about 170° C. to produce a product stream including bis(fluorosulfonyl) imide, ammonium fluorosulfate and the reaction medium; separating the ammonium fluorosulfate from the product stream to produce an intermediate product stream; and separating the intermediate product stream into a concentrated product stream and a first recycle stream, the concentrated product stream including a higher concentration of bis(fluorosulfonyl) imide than the first recycle stream.

Abstract: The water storage device includes: a water storage cavity and a water inlet, the water inlet being configured to feed a solution into the water storage cavity, the water storage cavity being configured to store or discharge the solution and containing a viscous substance; a guide rod and a floating device movable along the guide rod, the floating device being movable as a water level in the water storage cavity changes, and the viscous substance between the guide rod and the floating device restraining movement of the floating device; and a water curtain casing, the water curtain casing being connected to the water inlet and configured to split a part of the solution from the solution fed from the water inlet, and the solution split by the water curtain casing being configured to flush the viscous substance between the guide rod and the floating device.

Abstract: An inerting system includes a fluid circuit, a reactor within the fluid circuit, at least one particulate removal device (PRD) downstream from the reactor, and a fluid tank. The fluid tank is downstream from the at least one PRD. A method for removing particulates from a fluid stream in a fluid circuit includes receiving a fluid stream in a reactor within a fluid circuit, outputting an exhaust stream from the reactor, receiving the exhaust stream in at least one PRD downstream from the reactor, removing particulate from the exhaust stream, and receiving the exhaust stream with particulate removed in a fluid tank downstream from the at least one PRD.

Abstract: A gas treatment device that treats a gas to be treated, including oxygen, introduced at a gas inlet and that exhausts a treated gas at a gas outlet, the gas treatment device includes: a gas channel that communicates the gas inlet with the gas outlet; a blower that allows the gas to be treated to flow from the gas inlet to the gas outlet; an ultraviolet light source that is disposed in the gas channel and radiates ultraviolet light having a wavelength of 230 nm or less; a filter that is disposed at a side at which the gas outlet is located from the ultraviolet light source in the gas channel, and that adsorbs at least ozone; and a control unit that controls the blower to operate, wherein the control unit controls the blower to start a blowing operation after the ultraviolet light source starts radiating the ultraviolet light.

Abstract: A reducing agent supply device for supplying a reducing agent to a portion of a passage for a flue gas upstream of a SCR catalyst includes at least one header pipe extending in the passage and configured to allow the reducing agent to pass through; a plurality of injection nozzles disposed on the header pipe at intervals along an extension direction of the header pipe and configured to inject the reducing agent into the passage; a heat shield plate disposed on an upstream side of the header pipe with respect to a flow direction of the flue gas and having a longitudinal direction along the extension direction of the header pipe; and at least one fixing part contacting each of the heat shield plate and the header pipe and fixing the heat shield plate to the header pipe.

Abstract: A method for treating a spent oxidizing acid which contains at least one of H2O2 and one or more peroxy acids of sulfur comprising contacting the spent oxidizing acid with a quantity of SO2 in excess of an equilibrium quantity required to convert the H2O2 and peroxy acids of sulfur to sulfuric acid.

Abstract: Methods and systems described perform air cleaning and/or sanitization in a heating, ventilation, air conditioning, and/or refrigeration (HVACR) system by detecting a concentration of airborne contaminants in a space serviced by the HVACR system. The detected concentration of airborne contaminants is determined whether it exceeds a threshold relative to a capacity of a first air cleaner. When the detected concentration of airborne contaminants exceeds the threshold, a second air cleaner is selected and enabled to be activated in the space. When the detected concentration of airborne contaminants does not exceed the threshold, the first air cleaner is selected and enabled to be activated in the space. The first air cleaner has a cleaning material different from the second air cleaner, and the first air cleaner, relative to the second air cleaner, treats the space at a lower concentration of airborne contaminants. The second air cleaner includes specifically designed cleaner modules.

Abstract: A method for removing VOCs from exhaust gases of a CIPP curing process, the method including the steps of: (a) positioning an exhaust conduit to capture the exhaust gases; (b) elevating the temperature of at least a portion of the exhaust gases and passing the exhaust gases over a catalyst containing substrate to form a devolitized gas stream; and (c) directing the devolitized gas stream to an exhaust stack.

Abstract: An apparatus and a method for continuous solvothermal synthesis of nanoparticles, are provided. The apparatus includes an inlet section, a reactor section, a flexible quenching unit, and an outlet section. The inlet section separately receives reactants including the solvent and a precursor solution that are allowed to flow into the reactor section. The reactor section includes multiple spiral turns such that each of the spiral turns includes a helical channel followed by a counter-helical channel for enabling mixing of the reactants to cause solvothermal reactions between them. The counter-helical channel changes the direction of flow of reactants upon flow of said reactants from the helical channel to the counter-helical channel. The flexible quenching section enclosing a portion of the reactor section quenches a slurry formed as a result of the solvothermal reactions, wherein the slurry includes the nanoparticles of targeted characteristics. The outlet section facilitates withdrawal of the slurry.

Abstract: A control device for controlling a flue gas denitrizer including a reductant supply part for supplying a reductant to an exhaust gas passage to which an exhaust gas from a boiler is introduced. The control device comprises: a storage part which stores a plurality of opening degree patterns of a plurality of first valves corresponding to a plurality of operational states of the boiler respectively; an opening degree pattern acquisition part configured to acquire an opening degree pattern corresponding to a present operational state of the boiler among the plurality of opening degree patterns from the storage part; and a first valve control part configured to regulate an opening degree of each of the plurality of first valves, on the basis of the opening degree pattern acquired by the opening degree pattern acquisition part.

Abstract: Provided is a method for desulphurizating and denitrating a flue gas in an integrated manner based on low-temperature adsorption. The method includes: decreasing a temperature of the flue gas below a room temperature by using a flue gas cooling system; removing moisture in the flue gas by using a dehumidification system; sending the flue gas to a SO2 and NOx adsorbing column system; and simultaneously adsorbing SO2 and NOx of the flue gas with a material of activated coke, activated carbon, a molecular sieve or diatom mud in the SO2 and NOx adsorbing column system to implement an integration of desulphurization and denitration of the flue gas based on the low-temperature adsorption. With the present method, SO2 and NOx of the flue gas can be adsorbed simultaneously in an environment having a temperature below the room temperature.

Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end, an outlet end with an axial length L; an inlet catalyst layer beginning at the inlet end and extending for less than the axial length L, wherein the inlet catalyst layer comprises an inlet palladium component; an outlet catalyst layer beginning at the outlet end and extending for less than the axial length L, wherein the outlet catalyst layer comprises an outlet rhodium component; and wherein the outlet catalyst layer overlaps with the inlet catalyst layer.

Abstract: A system and method for sulfur recovery, including hydrogenating Claus tail gas, quenching the hydrogenated gas, adsorbing water and hydrogen sulfide from the quenched gas, and regenerating adsorbent with carbon dioxide and/or nitrogen and heating the adsorbent in a regeneration temperature ramp to desorb primarily hydrogen sulfide in a first part of the temperature ramp.