37 results about "Carbon dioxide scrubber" patented technology

A method for removing and capturing carbon dioxide from a fluid stream includes the steps of exposing the fluid stream to an aqueous scrubbing solution that removes and holds carbon dioxide from the fluid stream, passing the aqueous scrubbing solution through a membrane in order to separate excess water from the scrubbing solution and increase the concentration of carbon dioxide in the scrubbing solution, heating the scrubbing solution having an increased concentration of carbon dioxide so as to release carbon dioxide gas and recycling the scrubbing solution. A carbon dioxide capture apparatus includes a carbon dioxide scrubber, a membrane downstream from the scrubber for separating water and concentrating carbon dioxide in a scrubbing solution and a stripper vessel.

A breathing apparatus includes a breathing mask, hose, and first housing in fluid communication with the hose and breathing mask. The first housing has first and second chambers which are separated by a barrier comprising a carbon dioxide scrubber. The breathing apparatus is configured to conduct hypoxic therapy and tailor the therapeutic session to the patient while collecting data about patient response.

A pneumatic conveying system for conveying hydrated lime is provided with ambient air for the pneumatic conveying system from a scrubber that removes carbon dioxide from the ambient air used in the conveying system. The scrubber includes a bed of hydrated lime through which ambient air is passed, to react carbon dioxide in the air with the hydrated lime in a reaction that forms limestone and water. The air that has passed through the fluidized bed, which is essentially carbon dioxide free, is also passed through a filter to remove particles suspended in the carbon dioxide free air. The carbon dioxide free air from the filter is provided to the pneumatic conveying system. The use of carbon dioxide free air ensures that the hydrated lime being transported in the conveying system will not react in the various conduits and ducts of the pneumatic conveying system to cause problems.

A fermentation apparatus for preserving the aroma of a fermentable beverage is provided. The fermentation apparatus comprises a flow passage fluidly connectable to the headspace located above a fermentable beverage in a fermentation container. A carbon dioxide scrubber in the flow passage receives a headspace fluid mixture comprising at least carbon dioxide gas and an aromatic fluid originating from the fermenting beverage. When the headspace fluid mixture contacts the carbon dioxide scrubber, the carbon dioxide scrubber retains a modified fluid in the flow passage. The modified fluid has a lower carbon dioxide gas concentration and a higher aromatic fluid concentration than the headspace fluid mixture. The flow passage directs the modified fluid back to the headspace to at least partially retain the aromatic fluid in the fermentable beverage in the fermentation container. A method for preserving the aroma of a fermentable beverage is also provided.

The invention provides an ammonia-carbon separation process. The process comprises the step of carbon dioxide absorption, wherein a gas mixture sequentially makes contact with carbonized ammonia water and strong ammonia water in a carbon dioxide washing tower, carbon absorbing liquid is formed, the carbon absorbing liquid makes contact with a gas mixture in a carbon dioxide absorption tower, and ammonium carbamate liquid is obtained. According to the process, synergism of the carbon dioxide absorption tower and the carbon dioxide washing tower is initiatively utilized, carbon dioxide is separated from the gas mixture to the greatest extent, to be specific, the carbon dioxide absorption tower adopts the carbon absorbing liquid for absorbing carbon dioxide in the gas mixture, while carbon dioxide washing tower adopts carbonized ammonia water as the main medium and strong ammonia water as the auxiliary medium for precisely absorbing carbon dioxide, therefore the content of carbon dioxide in obtained coarse ammonia gas can be controlled below 50 ppm, then ammonia is separated from the coarse ammonia gas, and finally pure ammonia containing no carbon dioxide or water is obtained. By means of the ammonia-carbon separation process, thorough separation of ammonia and carbon dioxide is achieved in real sense, the ammonia-carbon separation effect is improved, and it is helpful to increase economic benefits.

A method of delivering a particulate therapeutic agent is disclosed. Such a method may include providing a carbon dioxide scrubber in pneumatic communication with the respiratory system of a patient. Gas and particulate therapeutic agent expired by the patient are passed through the scrubber to provide treated gas, and the treated gas and particulate therapeutic agent are provided back to the respiratory system.

An oxygen supply unit for use with a blood oxygenator comprises an oxygen concentrator and a carbon dioxide scrubber. In an on-line operational mode, oxygen-rich gas from the oxygen concentrator is predominantly supplied to the blood oxygenator with a reduced flow of recycled gas from the concentrator. In an off-line operational mode where the oxygen supply unit is being powered by battery only, a larger flow of recycled gas from the blood oxygenator is passed through the carbon dioxide scrubber and combined with a lesser amount of oxygen-rich gas from the oxygen concentrator. The oxygen supply unit may be used in combination with a blood pump and oxygenator to provide ambulatory blood oxygenation to patients with compromised lung function.

An emergency power system is provided in accordance with an exemplary embodiment of the present invention. The emergency power system includes a fuel cell and an electrochemically regenerated air scrubber which removes carbon dioxide from air.

A carbon dioxide scrubber includes an adsorption chamber through which an adsorption airflow is directed, a regeneration chamber through which a regeneration airflow is directed, and a divider wall separating the adsorption chamber from the regeneration chamber. A carbon dioxide sorbent bed extends across the adsorption chamber and the regeneration chamber. The carbon dioxide sorbent bed is configured to adsorb carbon dioxide from the adsorption airflow into the sorbent bed and exhaust carbon dioxide from the carbon dioxide sorbent bed into the regeneration airflow. The carbon dioxide sorbent bed is continuously movable through the adsorption chamber and the regeneration chamber.

The invention discloses a marine carbon dioxide washing tower, a spray washing absorption system and a spray washing absorption method, which are used for high-efficiency low-resistance capture of carbon dioxide in marine exhaust gas. The system comprises a washing tower, a circulating pool and an absorption liquid regeneration device, the washing tower is internally provided with a swirl-confluence coupling area, a swirl-flow spraying area and a demister from bottom to top, the swirl-confluence coupling area is formed by splicing a plurality of flow guide units, each flow guide unit is provided with a center nozzle used for spraying absorption liquid, the swirl-flow spraying area is distributed in a transverse, longitudinal and circumferential mode, and the spraying direction of the nozzles is the horizontal direction. Waste gas forms a plurality of small spiral rising gas-liquid mixed flows through the swirl-confluence coupling area, and then forms a large and small spiral mixed turbulent flow field through the swirl-flow spraying area, so that the contact reaction time is prolonged, the reaction efficiency is improved, and the resistance loss of the waste gas is reduced. The problems that a ship exhaust gas carbon dioxide washing tower is large in resistance, easy to block and low in efficiency are effectively solved.

A carbon dioxide separation/recovery device for separating and recovering carbon dioxide from a gas to be processed and containing nitrogen oxides and carbon dioxide by using a carbon dioxide scavenger, including a carbon dioxide trapping unit having the carbon dioxide scavenger, in which the carbon dioxide trapping unit includes: a gas flow inlet which introduces the gas to be processed; a heating unit of heating a scavenger heating gas used upon desorption of carbon dioxide trapped by the carbon dioxide scavenger to a predetermined temperature; a cooling gas introduction port which introduces a scavenger cooling gas used when cooling the carbon dioxide scavenger; and a moisture mixing part which adds moisture to a gas for nitrogen oxide desorption used in desorption of nitrogen oxides from the carbon dioxide scavenger. Consequently, NOx accumulated to the carbon dioxide scavenger is desorbed, thereby capable of suppressing lowering in the performance of the carbon dioxide scavenger and reducing the running cost.

Systems and methods relate to recovering hydrocarbons by injecting into a reservoir steam along with carbon dioxide recovered from flue gases produced while generating the steam and from separation of produced fluids. Due to benefits from the carbon dioxide injection, carbon dioxide capture rates from the flue gases selected below fifty percent in such combined recovery of the carbon dioxide enables lower fuel consumption even given that additional fuel is needed for the carbon dioxide capture versus steam only operations. As the capture rates from the flue gases increase above fifty percent like when employed for sequestration purposes, such approaches use more fuel than the steam only operations and may not be cost efficient. A carbon dioxide recovery unit coupled to an air-fired boiler or an auxiliary oxy-fired boiler may supply the carbon dioxide recovered from the flue gases.

An apparatus and method for producing methane gas, synthetic hydrocarbon gas, and fertilizer is provided. The apparatus includes a mix tank for mixing cellulosic material with a solvent into a slurry and a generator having an exhaust. The apparatus further includes a stir tank reactor for converting the slurry to a solution containing lignin-like carbon and liquid, and a separator for separating the lignin-like carbon and liquid. An anaerobic digester decomposes the received liquid received from the stir tank into methane and liquid components. A carbon dioxide scrubber scrubs the methane component of carbon dioxide.

The method includes mixing cellulosic material with a solvent into a slurry, and converting the slurry to a solution containing lignin-like carbon and liquid. It also includes separating the lignin-like carbon and liquid and decomposing the liquid into methane and liquid components, and scrubbing the methane component of carbon dioxide.

Disclosed is a filtration structure, comprising: a substrate, wherein the substrate is a three-dimensional lattice formed from repeating geometric shapes; a layer of porous material bonded over the substrate; and a liquid amine retained within the pores of the porous material. Also disclosed is a carbon dioxide scrubber comprising the filtration structure.

The invention provides a device for reducing carbon dioxide into carbon monoxide, and relates to the technical field of carbon dioxide reduction. The device comprises at least one reactor, closed feeding systems, closed slag removal systems and oxygen branch pipes, wherein each reactor is provided with an air inlet and an air outlet, and the air inlet of the first reactor is the carbon dioxide inlet in the gas flowing direction, and the closed feeding systems correspond to the reactors one to one; according to each pair of corresponding reactor and closed feeding system, the closed feeding system is located on the top of the reactor and communicated with the reactor, and the closed slag removal systems correspond to the reactors one to one; according to each pair of corresponding reactor and closed slag removal system, the closed slag removal system is located at the bottom of a processor and communicated with the reactor; the oxygen branch pipes correspond to the reactors one to one, and the air inlets and the air outlets are arranged in a staggered mode in the extending direction of the closed feeding systems and the closed slag removal systems. The device aims at solving the problem that the carbon dioxide rate is low in the prior art.