Abstract: A decontamination enclosure, comprised of a plurality of preformed panels joined together to form a structure defining a totally enclosed chamber. A door is formed in at least one of the panels, the door being movable between an opened position and a closed position to allow access to the chamber. A circulation system is attached to the structure for circulating vaporized hydrogen peroxide through the chamber. A controller is provided for controlling the amount of vaporized hydrogen peroxide introduced into the chamber.

Abstract: Apparatus and methods of forming a battery-active material are described. An apparatus includes a first processing section that raises the temperature of a precursor material to a reaction threshold temperature, a second processing section that converts the precursor material to a battery-active material, and a third processing section that cools the resulting battery-active material. Each of the processing sections may be a continuous flow tubular component. The first and third processing sections may be metal, and the second processing section may be a refractory material for high temperature service. The battery-active material is collected using a solids collector.

Abstract: The system and method described herein provide for the higher production rate fractionation of biomass for the purpose of selectively separating specific volatile components, which may subsequently be used in the production of a renewable liquid fuel, such as gasoline. Increased production rates of processing of biomass or other feedstock is achieved through the use of sealed reaction chambers, which may be transferred in a sealed configuration between stations in a multi-station processing system. Also, the present invention considers the use of piston assemblies for the dual functions of controlling fluid intake and exhaust (in combination with valves) and for providing a more robust and more cost effective sealing mechanism. The present invention may also achieve improved uniformity of biomass processing through the introduction of a mechanical agitator designed to mix the biomass during processing.

Abstract: An exhaust gas purification system comprises an exhaust gas purification device which is arranged in an exhaust gas route of an engine, renewing devices, for burning and removing a particulate matter within the exhaust gas purification device, renewal advance notifying means which is actuated in the case that a clogged state of the exhaust gas purification device becomes equal to or more than a prescribed level, and renewal informing means which informs of a fact that the renewing devices are under operation. The renewal advance notifying means is actuated before actuating the renewing devices.

Abstract: The present invention relates to a method for the treatment of an exhaust gas comprising NOx, wherein the method comprises the step of subjecting the exhaust gas to an exhaust gas treatment system comprising, in order of the exhaust stream: (a) a first NOx storage catalytic converter (2, 2?); (b) a catalytic converter (3) for selective catalytic reduction (SCR) downstream of the first NOx storage catalytic converter; and (C) a catalytic converter (4) having oxygen storage capacity downstream of the SCR catalytic converter; wherein the exhaust gas treatment system is operated in alternating rich and lean phases, wherein the rich phase is terminated when the amount of reducing components leaving the first NOx storage catalytic converter is at least 0.

Abstract: A chemical manufacturing system is used in chemical reactions involving a gas, gases or liquid which is turned into a gas, reacting with a solid or liquid, inside a closed reactor system. The chemical manufacturing system is designed to produce highly reactive materials on an industrial scale in a controllable fashion. The modular design and shape of the reactor system and the controls of the system account for the differentiation and improvements over conventional reactor systems.

Abstract: A method for recovering CO2 from gas to be processed containing CO2, includes bringing the gas to be processed containing CO2 and CO2 absorbent into contact with each other to absorb and remove CO2 from the gas to be processed; cleaning the treated gas from which CO2 has been removed with washing fluid at least once; heating the absorbent which has absorbed CO2, separating and removing CO2 gas from the absorbent and regenerating the absorbent; cooling the separated CO2 gas to condense moisture contained in the gas to obtain condensed water; and monitoring changes in concentration of the CO2 absorbent contained in the condensed water and depending on the value of the measured concentration, controlling supply of the condensed water so that the condensed water is reused as a part of the washing fluid or a part of the CO2 absorbent.

Abstract: A multilayer material is described herein that includes a flexible inner layer and a flexible outer layer configured to enclose at least one signaling layer, the at least one signaling layer including at least one chemical compound. The multilayer material including the chemical compound within the at least one signaling layer is configured to release a gas-phase chemical compound to signal to a detector indicating a breach of the multilayer material. A multilayer material, a system, an article of clothing, or a method is described herein.

Abstract: An apparatus for processing of material, the apparatus comprising: a compartment for accommodating said material during processing, said compartment having at least one wall, an inlet for receiving the material to be processed and an outlet for material once processed to exit the compartment; and a radiation source for directing electromagnetic radiation into the compartment through a portion of the compartment wall that is at least partially transparent to the radiation, the radiation being microwave or radio frequency (RF) electromagnetic radiation; wherein the apparatus is configured to place at least some of the material in the compartment in contact with the at least partially transparent portion of the compartment wall through which the radiation is admitted to the compartment.

Abstract: A device includes an injector for a liquid having at least one pressure sensor, preferably an integrated pressure sensor. The device is used, in particular, for adding liquid reducing agent to an exhaust gas line of a motor vehicle. A configuration having the device and methods of using the device and the configuration are also provided.

Abstract: A method and system for reforming hydrocarbon gas, which includes stripping from the hydrocarbon gas at least most of gaseous impurities of a type and/or quantity which would normally interfere with efficient catalytic reforming in order to provide stripped hydrocarbon gas including carbon dioxide, optionally compressing the stripped hydrocarbon gas to provide compressed stripped hydrocarbon gas, and reacting the stripped hydrocarbon gas in a solar radiation receiving reactor having a catalyst that is heated by concentrated solar radiation impinging thereon, thereby providing an output gas mixture comprising hydrogen gas and carbon monoxide. The invention also includes a method and system for reforming hydrocarbons in a solar radiation receiver reactor, and such a system that also includes a certification system for certifying the amount and composition of the output gas mixture.

Abstract: A modular ductwork assembly decontaminates an air stream circulating within a heating, ventilation and air conditioning (HVAC) system. The assembly includes one or more of (a) an ionizing module for removing particulates from the air stream, (b) a sterilization module for neutralizing airborne pathogens present in the air stream, (c) an ozone treatment module for neutralizing pathogens or odoriferous or gaseous constituents or volatile organic compounds (VOCs) present in the air stream, optionally (d) baffles for slowing and disrupting the flow rate and promoting turbulence in the air stream traveling through the modules, optionally (e) a fan module for directing a treated air stream, optionally (f) an ozone sensor, optionally (g) a monitoring or ozone control means, and optionally (h) a means of delivering and repurposing generated ozone. Each of the modules is arranged substantially adjacent to at least one of the other modules.

Abstract: Dry dust removal method in organic chlorosilane production is provided, in which the detailed steps are as follows: delivering high-temperature flue gas (a) from fluidized bed reactor (I) into inorganic film cross-flow filter (E) to remove dust for the first time; delivering the concentrated dust gas (c) trapped by inorganic film cross-flow filter (II) into bag filter (III) to remove dust for the second time; returning the gas mixture (f) of passing through bag filter (EI) to the air intake of inorganic film cross-flow filter (II); condensing the residual clean gas (b) from the osmotic side of inorganic film in condenser (A), and then rectifying in rectifying column (B) to separate the products of chloromethane (g) and methyl chlorosilane (h) to obtain the product of methyl chlorosilane (h); returning chloromethane to fluidized bed reactor to take part in reaction; retreating the dust (e) trapped by inorganic film cross-flow filter and bag filter, and then returning it to fluidized bed reactor (I) to take par

Abstract: Methods and systems for building three-dimensional workpieces are described using a plurality of mechanosynthetic reactions. These methods may employ engineered reliability in reactions and process conditions and may use simulated or otherwise vetted reaction sequences, to allow workpieces requiring many reactions to be built with acceptable reliability. These many reactions may be the repetition of one or a small number of reactions, or many diverse reactions, or a combination thereof.

Abstract: Bubble formation is monitored in a reactor such as a loop polymerization reactor which effectively operates at pressures above or near the vapor pressure of a circulating slurry liquid. The method measures a property of the reactor composition at a first location within the reactor, and then at a second location within the reactor. The process is repeated, followed by determining if the difference in measured property varies from a reference difference, derived under bubble-free conditions. When the difference in measured physical property has changed relative to the reference difference, an effect may be implemented, e.g., increase of reactor pressure, decrease of composition vapor pressure, and decrease of reactor temperature, to an extent sufficient to reduce or eliminate bubbling.

Abstract: The present invention relates to an air filtration system and a method for making a photocatalytic oxidation substrate by powder coating a photocatalyst onto a metal substrate.

Abstract: Devices and methods for sterilizing the outer and inner surfaces of a working end-site of a medical device such as a catheter hub, luer connector, luer component, needleless access site, and/or access port are discussed. The sterilizing device can include a housing, a sterilizing element including an antipathogenic agent configured for sterilizing the working end-site of a medical device, and a cap hingedly coupled to the housing and configured to hermetically seal the sterilizing element within the housing. One or more features on the cap and housing serve to hermetically seal the cap to the housing prior to use.

Abstract: Disclosed herein are compositions of nanoparticles. In some embodiments, the nanoparticles are Janus particles, where each particle includes a first component and second component that are exposed to the surface of the particle. Also, disclosed are methods and systems for making a composition of nanoparticles. Finally, a method of treating a mammal by administering a composition of nanoparticles is disclosed.

Abstract: According to embodiments of the invention, a selective ultraviolet disinfection method is provided. The method includes selecting operating parameters for an ultraviolet disinfection process of flowing liquid carrying first and second types of entities to affect the first type of entities while the second type of entities remains intact, illuminating the liquid with ultraviolet light according to the operating parameters and continuously adjusting the operating parameters based on real-time measurements of ultraviolet transmission and flow rate of the liquid.

Abstract: The disclosure relates to a device for removing and analyzing a sample from a polymerization reactor including one or more sample conduits for removing a sample from the reactor and transferring the sample to a sample flash tank, whereby the conduits are in communication with the reactor and are provided with at least two sampling valves; a sample flash tank for separating said solid particles and evaporated gas, whereby the sample flash tanks are connected to the conduits and provided with a device for analyzing evaporated gas, and including a sample receiver for purifying the solid particles. The receivers are connected to the sample flash tanks and provided with an apparatus for analyzing the solid particles. The disclosure includes a method for improving a polymerization reaction.

Abstract: A device, method of making, and method of using, illustratively wherein a container includes an inlet and an outlet; a catalytic converter intermediate in a path between the inlet and the outlet; at least one surface arranged to ensure at least a majority of gas received from the inlet traverses a first portion of the path from the inlet to the catalytic converter and communicates heat from the catalytic converter to the container; and an optical means arranged to transport visible light, emitted from the catalytic converter during reduction of the smog-generating chemical in the gas, to a location outside the container to indicate whether the catalytic converter is functioning properly.

Abstract: A method for sorting carbon nanotubes (CNTs) is disclosed. In one embodiment, a method for sorting CNTs of the present disclosure comprises providing to a surface of a substrate, the surface modified with a trans isomer of photo-isomerization-reactive diazo compound, a dispersion containing a mixture of conducting CNTs and semiconducting CNTs; removing CNTs which are not associated with the modified surface from the surface; and irradiating the modified surface to detach the CNTs associated with the modified surface.

Abstract: A device for reprocessing used plastic containers including a system for analyzing the degree of contamination of the plastic, a system for determining decontamination process parameters as a function of the degree of contamination thus detected, and a system for controlled decontamination of the plastic according to the decontamination process parameters thus determined. The system for determining decontamination process parameters provides determined decontamination process parameters to corresponding decontamination control elements that are automatically adjusted depending on the degree of contamination.

Abstract: A process for a continuous regeneration of a catalyst wherein the regeneration section includes at least two separate zones. The regeneration includes a combustion zone, and an oxygen boost zone, where the process utilizes at least two independent regeneration gas loops for control of the amount of oxygen to regenerate the catalyst.

Abstract: A system and method scrub a vapor. In one embodiment, a vacuum truck scrubber system includes a liquid vat. The liquid vat comprises liquid. The system also includes a first carbon canister. The liquid vat is connected to the first carbon canister. The first carbon canister contains carbon. In addition, the system includes a second carbon canister. The first carbon canister is connected to the second carbon canister. The second carbon canister contains carbon. In addition, the system includes a third carbon canister. Moreover, the system includes that a vapor comprising contaminants is fed to the liquid vat and is introduced from the liquid vat to the first carbon canister wherein a portion of the contaminants are removed from the vapor. The vapor is introduced from the first carbon canister to the second carbon canister wherein another portion of the contaminants are removed from the vapor.

Abstract: An exhaust treatment system includes an exhaust treatment device. The exhaust treatment device includes a shell, and a sensor boss configured to support a sensor device is mounted to the shell. A Pitot tube that is configured to communicate exhaust to the sensor device is coupled to the sensor boss at a proximate end thereof, while a distal end is affixed to the shell of the exhaust treatment device to prevent detachment of the Pitot tube from the sensor boss, and ensure that exhaust gases are effectively communicated to the sensor device.

Abstract: An exposure indicating device disposed in a respirator system. The exposure indicating device comprises a diffractive optical element. The exposure indicating device comprises a material having an index of refraction that changes as a function of exposure to a chemical vapor, where the exposure indicating device provides an optical signal that changes in optical property as a function of exposure to the chemical vapor.

Abstract: Systems and methods for disinfecting medical instruments are provided. In one embodiment, a system can include a hood to provide a clean zone, a chamber to dispose within the clean zone, and an ultrasonicator. More specifically, the chamber can include a volume and can be configured to retain a fluid and receive medical instruments. The chamber can also include a portal through which fluids enter or leave the chamber. The ultrasonicator can be used to sonicate the volume when the fluid is present. A related method of disinfecting medical instruments can be accomplished using the systems of the present disclosure.

Abstract: A reactor for the gasification of biomass having a reactor vessel that defines a gasification chamber with an oxidation zone, to which oxidation zone an oxygen containing gasification agent, in particular air, may be supplied from outside of the reactor vessel, wherein biomass may be continuously transported to the oxidation zone in the gasification chamber, wherein air supply elements having exit openings in the area of the oxidation zone are arranged in the reactor vessel, which extend in the transport direction of the biomass. The air supply elements are each configured in lance form and provided along at least one insulation section with an external insulation layer.

Abstract: The present invention concerns a mixer-settler, an arrangement comprising a train of at least two mixer-settlers and a method for measuring and controlling volumetric O/A ratio and phase disengagement time of organic and aqueous phases in a dispersion. A continuous flow of dispersion is led via an inlet channel (6) from the uptake channel (4) though a measurement chamber (5) to an outlet channel (9) which leads the flow to the pump-mixer unit (1). At predetermined time intervals the continuous flow of dispersion is interrupted by closing the inlet and outlet valves (12, 13) to retain a sample of dispersion in the measurement chamber (5) for the measurement of the O/A ratio and phase disengagement time.

Abstract: The present invention relates to a compact, concentric auto thermal hydrogen/syngas generator for production of hydrogen/syngas without any external heating. Further, the auto thermal hydrogen/syngas generator of the present invention involves combination of reactions such as partial oxidation, steam reforming, dry reforming, auto thermal reforming, dry autothermal reforming, water gas shift, preferential oxidation or methanation that takes place without external heating, for converting air, steam and fuel into a reformate mainly containing CO, CO2, N2, CH4 and H2O which is subsequently converted to hydrogen/syngas as a feed for fuel cell or syngas applications.

Abstract: There is disclosed a polycrystal silicon manufacturing apparatus including a reaction pipe configured to provide a reaction space where seed silicon grows into polycrystal silicon, a flowing-gas supply unit configured to supply flowing gas to the seed silicon and the polycrystal silicon provided in the reaction pipe, a sensing unit configured to output level information based on the height of a fluidized bed which is changeable according to the growth of the polycrystal silicon, and a particle outlet configured to exhaust the polycrystal silicon formed in the reaction pipe outside, when the height of the fluidized bed corresponding to the level information is larger than an exhaustion start height of the fluidized bed corresponding to a start level.

Abstract: Disclosed herein are embodiments of a solar-activated photochemical fluid treatment system, some of which comprise a fluid vessel, a porous enclosure positioned inside of the fluid vessel, a porous enclosure positioned inside of the fluid vessel, a fiber substrate contained within the enclosure, and a semiconductor photocatalyst coupled to the fiber substrate. The fluid vessel can be configured to contain a fluid in contact with the photocatalyst such that the fluid treatment system, responsive to solar radiation applied to the photocatalyst and to the fluid in the vessel, induces photochemical modification of contaminants and living organisms in the fluid. Related methods are also disclosed.

Abstract: Systems and methods are disclosed that include an exhaust gas stream produced by an engine and an aftertreatment system including an SCR catalyst element receiving at least a portion of the exhaust gas stream. An exhaust outlet flow path has an inlet fluidly coupled to the exhaust gas stream at a position downstream of at least a portion of the SCR catalyst element that bypasses at least a portion of exhaust gas stream to provide for compositional measurement of the exhaust gas with a compositional sensor located downstream of a diagnostic catalyst positioned in the exhaust outlet flow path.

Abstract: Methods of treating of stannous oxide particles having at least a partial surface crust of stannic oxide by contacting the particles with a reducing agent for a period of time sufficient to produce stannous oxide are provided. The stannous oxide particles produced are readily soluble in organic sulfonic acids.

Abstract: The invention is a hydrogen generator including a pump for pumping a liquid from a reservoir to a reaction area, where the liquid reacts to produce hydrogen gas, and a fuel cell system including the hydrogen generator and a fuel cell stack. The pump is a diaphragm pump with mechanically operated liquid inlet and outlet valves that are opened by cam-operated pushrods, and the pushrods are isolated from the liquid flowpath through the pump by diaphragms. All valves in the liquid flow path between the liquid reservoir and the reaction area are mechanically operated valves.

Abstract: The application relates to apparatus capable of easily mounting an indicator to a device for verifying a sterilizing effect when a sterilizing process is performed. An installation apparatus is disclosed for positioning a sterilization verifying device in a sterilizing chamber having a sterilizing chamber door, said sterilization verifying device comprising a containing chamber for containing an indicator, the containing chamber having an opening for receiving an indicator into the chamber and connected to an introduction tube for introducing a sterilizing gas into the containing chamber, the installation apparatus comprising arrangement means configured to, in a case that the sterilizing chamber door is closed, position the opening of the containing chamber with respect to an inner wall of the sterilizing chamber door, such that the inner wall and the opening are brought into contact with each other thereby sealing the containing chamber against the inner wall.

Abstract: This method includes the separation of an upstream partly condensed cracked gas stream in an intermediate separator (44B) in order to recover an intermediate liquid (136), and an intermediate cracked gas stream (138) and the introduction of the intermediate liquid (140) into an intermediate demethanization column (68). The method comprises the sampling of a portion of the intermediate liquid (136) and the expansion of at least one first fraction (194) obtained from the sampled portion (190). It comprises the putting of the first expanded fraction in a heat exchange relationship with the intermediate head stream (146) from the column (68) for at least partly condensing the intermediate head stream (146). The method includes the separation of the intermediate partly condensed head stream in a first reflux separator (76) in order to form a liquid stream (148) introduced into the intermediate column (68) and a combustible gas stream (150).

Abstract: Systems, methods, and devices for generating radionuclides for use in production of radiopharmaceuticals; synthesizing the radionuclides generated and removing any unwanted products; measuring the quantity and activity level of the synthesized radionuclides; distributively delivering the radionuclides in appropriate quantities to modular cassette synthesis units in a modular cassette subsystem for contemporaneous/parallel production of radiopharmaceutical output and that allow reuse and/or quick, safe, and disposable replacement of portions of the subsystem; delivering non-radionuclide components to the modular cassette synthesis units as part of production of radiopharmaceutical output; measuring the quantity and activity level of each stream of radiopharmaceutical output; purifying the radiopharmaceutical output; dispensing individual doses in sterile vial(s); automatically producing labeling and dose related information; performing automated quality control on extracted samples of produced radiopharmaceuti

Abstract: A method of making Portland cement, white cement, calcium aluminates, calcium aluminum silicates and similar oxides using solid state combustion synthesis is described. The method uses less energy and produces lower CO2 emissions than conventional processes. The method uses green fuels like biomass and lignin and eliminates most of the coal used in traditional cement production. A batch reactor and a semi-continuous reactor that can be used for the combustion synthesis are also described.

Abstract: There is provided a sterilization apparatus for sterilizing an object. The sterilization apparatus includes a concentration chamber configured to concentrate sterilizer, a vaporizing chamber configured to vaporize the sterilizer, a measuring pipe into which the sterilizer is introduced from the concentration chamber before being introduced into the vaporizing chamber, a vacuuming device configured to vacuum the sterilization chamber, and a first valve configured to be opened and closed to control communication between the sterilization chamber and the measuring pipe, wherein after the sterilizer is introduced from the concentration chamber into the measuring pipe, gas contained in the measuring pipe is removed from the measuring pipe by opening the first valve.

Abstract: A hydrogen-peroxide-gas generator includes: an atomizing unit to atomize hydrogen-peroxide solution stored in a storage portion by applying ultrasonic vibration; a heater provided above the atomizing unit, the heater configured to heat and gasify the hydrogen-peroxide solution atomized in the atomizing unit; an internal cylindrical portion, made of metal, whose internal space has the heater arranged therein, the internal cylindrical portion configured to guide upward the hydrogen-peroxide solution atomized in the atomizing unit flowing together with a carrier gas; and an external cylindrical portion, double-pipe constructed, whose internal space has the internal cylindrical portion arranged therein, having a gas-flow path for the carrier gas flowing downward toward the storage portion formed between the external cylindrical portion and the internal cylindrical portion, the carrier gas flowing through the gas-flow path caused to contact the internal cylindrical portion heated by the heater, the heated carrier

Abstract: A reaction vessel for conducting low temperature reactions is disclosed, the reaction vessel comprising: a circulation chamber with an entry port for the supply of a cooling medium at a temperature below ambient to said circulation chamber and an exhaust port; and a reaction chamber and a centrifugal fan arranged concentrically-inside the circulation chamber so that gas in said circulation chamber is forced radially outwards by the operation of said fan, wherein the movement of the gas past the reaction chamber maintains the temperature of reactants inside the reaction chamber at a temperature below ambient. A chiller for providing a gas supply at a temperature below ambient is also disclosed which may be used with the above reaction vessel.

Abstract: Disclosed is a method pertaining to SCR systems for exhaust cleaning whereby liquid is supplied to a feed device via which it is supplied to a dosing unit at a consumption point of the SCR system. The method includes continuously determining cumulative amounts of liquid dosed via the dosing unit. Need for replacement or cleaning of a filter unit for said liquid is also determined on the basis of the cumulative amounts of liquid dosed. The method further includes dosing at least part of the liquid supplied via the feed device and feeding undosed liquid back in a return flow to enable it to be supplied again to the feed device. Also disclosed is a computer program product that includes code for a computer for implementing the disclosed method.

Abstract: The present embodiments are directed toward a system for measuring a refractory layer of a gasifier. In one embodiment, the gasifier includes a first refractory layer disposed about a gasification chamber, a second refractory layer disposed about the first refractory layer, and a temperature sensor disposed between the first refractory layer and the second refractory layer. The temperature sensor may collect temperature data for use in determining a thickness of the first refractory layer.

Abstract: A micro-fluidic device is described. The micro-fluidic device includes a semiconductor substrate; at least one micro-reactor in the semiconductor substrate; one or more micro-fluidic channels in the semiconductor substrate, connected to the at least one micro-reactor; a cover layer bonded to the semiconductor substrate for sealing the one or more micro-fluidic channels; and at least one through-substrate trench surrounding the at least one micro-reactor and the one or more micro-fluidic channels.

Abstract: A portable gas transfer device for point-of-use sterilization at a sterilization site includes: a housing; a pressurized gas canister held by the housing; a first passageway in fluid communication with the pressurized gas canister and configured to supply pressurized pre-sterilization gas from the pressurized gas canister to the site; a gas discharge canister held by the housing; and a second passageway in fluid communication with the gas discharge canister and configured to supply post-sterilization gas from the site to the gas discharge canister. Additional related devices, systems and methods are provided.

Abstract: The invention relates to a sterilization apparatus (10) and to a method for the sterilization of an object (7) by a gaseous or liquid fluid comprising: a sterilization chamber (8) in which the object (7) is positioned, at least an acceleration device (2) for accelerating the fluid to a predetermined flow-speed, at least a filter device (3) for separating particles from the fluid, characterized in that the sterilization apparatus further comprises at least an orifice device (4) providing a plurality of openings, and a control apparatus for determining the flow-speed of the fluid on the basis of a pressure difference (?p).

Abstract: A molten metal reactor for converting a carbon material and steam into a gas comprising hydrogen, carbon monoxide, and carbon dioxide is disclosed. The reactor includes an interior crucible having a portion contained within an exterior crucible. The interior crucible includes an inlet and an outlet; the outlet leads to the exterior crucible and may comprise a diffuser. The exterior crucible may contain a molten alkaline metal compound. Contained between the exterior crucible and the interior crucible is at least one baffle.

Abstract: A carbon dioxide recovery system is provided, in which, a filling rate of the carbon dioxide sorbent in the container indicated by f [%] is positive and larger than or equal to the value obtained by the following expression of 100×(p/(RT))×(x?C)/(a×(100+x/r?100×x/(rC)?x)+(p/(RT))×(x?C)), with respect to the effective molar quantity of the captured carbon dioxide per 1 L of the carbon dioxide sorbent (=a) of the carbon dioxide sorbent to be used, wherein a demanded concentration of recovered carbon dioxide is indicated by x [%], and an amount of the captured gases other than carbon dioxide is indicated by r, and a concentration of dried carbon dioxide in a carbon dioxide-containing gas is indicated by C [%], and a total pressure of the carbon dioxide sorbent occurring when carbon dioxide is captured is indicated by p [Pa].