In a process for treating a carbon dioxide-rich gas (1) containing water, the treatment by compression and/or washing and/or drying of the gas produces acidified water (W1, W2, W3, W4, W7) which is sent to a cooling circuit (W8, W10).

A method for carbon dioxide recycle stream processing with ethylene glycol dehydrating in an enhanced oil recovery process includes receiving a first carbon dioxide recycle stream from a hydrocarbon formation, adding ethylene glycol to the first carbon dioxide recycle stream to produce an ethylene glycol and carbon dioxide recycle stream, condensing the ethylene glycol and carbon dioxide stream to produce a multiphase stream, separating the multiphase stream into a water and ethylene glycol stream and a second carbon dioxide recycle stream, separating the water and ethylene glycol stream into a water stream and an ethylene glycol stream, and separating the second carbon dioxide recycle steam into a carbon dioxide reinjection stream and a natural gas liquids stream.

A system and method for cooling, purifying and liquifying a feed gas stream uses liquid nitrogen for cooling the system. After cooling the system, the warmed nitrogen is vented as a vapor. The system and method include a water condenser, a first and second cooler and a liquifier and production of at least first and second contaminant streams. Optionally, the system includes a compressor or blower and/or a separator.

A food waste disposer including a housing, a container disposed inside the housing and provided to accommodate food waste, an exhaust duct communicating with the container and provided to allow exhaust gas generated in the container to flow therein, a filter device including a catalytic filter part configured to filter the exhaust gas passed through the exhaust duct, and a deodorizing filter part configured to filter the exhaust gas passed through the catalytic filter part and communicating with an outside of the housing, and a condensation chamber configured to remove moisture in the exhaust gas flowing from the exhaust duct into the catalytic filter part of the filter device.

A fuel tank inerting system includes a primary catalytic reactor comprising an inlet, an outlet, a reactive flow path between the inlet and the outlet, and a catalyst on the reactive flow path. The catalytic reactor is arranged to receive fuel from the fuel tank and air from an air source that are mixed to form a combined flow, and to react the combined flow along the reactive flow path to generate an inert gas. The system also includes an input sensor that measures a property of the combined flow before it enters the primary catalytic reactor and an output sensor that measures the property of the combined flow after it exits the primary catalytic reactor.

A heat exchange device and a freeze dryer. The freeze dryer comprises a bearing device, and an evaporation device and a condensation device which are provided on the bearing device, at least one of the evaporation device and the condensation device comprising a structure of the heat exchange device. The heat exchange device is integrally molded by extrusion, and the heat exchange device is provided with at least one medium flow passage, a plurality of fins are formed on the outer periphery of the medium flow passage, and the fins being provided at intervals to form gaps allowing airflows to pass therethrough. The heat exchange device and the freeze dryer of the present disclosure can be designed to be smaller, reducing the volume, and facilitating miniaturization of products.

Exemplary embodiments of the present disclosure are directed towards a water tapping device for extracting water from the air in the environment comprising: a first hemisphere and a second hemisphere in an attachable and detachable manner, a first end of a cylindrical connector connected to the first hemisphere and a second end of the cylindrical connector connected to the second hemisphere respectively, air vents configured to suck air fluid and reaches the cylindrical connector comprising first rotor and second rotor configured to rotate with free air movement, gears configured to enable the first rotor and the second rotor to spin in any direction, the first rotor blades and the second rotor blades are aligned to optimize the rotation using free air movement, the air vents configured to create air pressure for condensation of pressurized air in first hemisphere and then condense pressurized air into water in second hemisphere.

Carbon dioxide is recovered from an exhaust gas in the form of liquid carbon dioxide or supercritical carbon dioxide utilizing a rotary separator. Nitrogen gas recovered from the rotary separator can be expanded to provide cooling for carbon dioxide in a closed-loop CO2 power cycle that is used to cool the exhaust gas upstream of the rotary separator. The recovery can power itself and can produce excess electricity from waste heat.

A humidifier/dehumidifier device is disclosed herein. The humidifier and dehumidifier both, respectively, evaporate water from and condense water into a shared (same) water storage container. The device is fitted with an air intake and at least one air outtake. In embodiments of the technology, one or more of the air intakes receives air from outdoors. One or both of an indoor and/or the outdoor intake is used to receive air based on a determination that an indoor and outdoor humidity and temperature is most efficient to achieve a desired indoor humidity or temperature.

Processes, systems, and associated control methodologies are disclosed that control the flow of biogas during the biogas cleanup process to create a more consistent flow of biogas through the digester, while also optimizing the output and efficiency of the overall renewable natural gas facility. In representative embodiments, a biogas buffer storage system may be used during the cleanup process to control the pressure and flow rate of biogas. The biogas buffer storage system may monitor and control the biogas flow rate to either bring down or increase the digester pressure, thereby maintaining a normalized biogas flow rate.