An anaesthetic halocarbon capture system is provided. The system includes a pressure-intolerant sleeve containing filter material for capturing one or more types of anaesthetic halocarbon prior to supercritical fluid extraction, and a pressure-tolerant housing into which the sleeve can be inserted so as to permit exposure of the sleeve contents to pressures required for supercritical fluid extraction.

Disclosed is an adsorbent containing a metal oxide for adsorption of hydrogen sulfide in biogas, and a biogas purification system using the same.

Disclosed is an absorbent containing an amine for absorption of an acid gas in a biogas, and a biogas purification system using the same.

Disclosed is an adsorbent containing a metal oxide for adsorption of hydrogen sulfide in biogas, and a biogas purification system using the same.

An anaesthetic halocarbon capture system is provided. The system includes a pressure-intolerant sleeve containing filter material for capturing one or more types of anaesthetic halocarbon prior to supercritical fluid extraction, and a pressure-tolerant housing into which the sleeve can be inserted so as to permit exposure of the sleeve contents to pressures required for supercritical fluid extraction.

The invention relates to a method for cleaning a phosgene conducting apparatus, comprising: washing the apparatus with hot inert gas, followed by washing the apparatus with cold inert gas; conveying gaseous ammonia for breaking down phosgene residues with a continuous increase in temperature until a maximum temperature ranging between 30° C. to 120° C. is reached; once the maximum temperature is reached, shutting down the ammonia supply and the conveying of inert gas, optionally followed by washing the apparatus with an aqueous stream.

A detection device to detect an operating condition of air-drying salts contained in a breather for power transformers operatively coupleable to the breather is described. The detection device comprises illumination means comprising at least a light source adapted to illuminate airdrying salts contained in the breather with a first light radiation. The detection device also comprises acquisition means comprising at least a light sensor adapted to receive a second light radiation coming from air-drying salts contained in the breather. The acquisition means is configured to provide first detection signals indicative of the color of the second light radiation. The detection device further comprises a control unit for controlling operation of the detection device. The control unit is configured to receive and process the first detection signals.

A desiccant replacing apparatus may include a supply-discharge member, a supply connection line connected to the supply-discharge member, an air conveyor coupled to the supply connection line, a discharge connection line connected to the supply-discharge member, and an air amplifier coupled to the discharge connection line. The supply-discharge member may include a housing providing an internal space, an injection line providing an injection path and penetrating the housing, an exhaust line providing an exhaust path connected to the internal space, and a filter in the internal space or the exhaust path. The supply connection line may be connected to the injection line, and the discharge connection line may be connected to the exhaust line.

A vehicle able to recover CO.sub.2 includes a CO.sub.2 recovery container holding an adsorbent adsorbing CO.sub.2 in gas. The vehicle is configured so that the adsorbent is taken out from the vehicle.

The present disclosure provides systems and methods for nitric oxide (NO) generation and/or delivery. In some aspects, a nitric oxide generation system comprises a plasma chamber configured to ionize a reactant gas including nitrogen and oxygen to form a product gas that includes NO, a scrubber downstream from the plasma chamber and having a volume at least partially containing NO.sub.2 scrubbing material, and a flow controller downstream of the scrubber configured to control the flow of product gas from the scrubber to a delivery device. A pump is configured to convey product gas from the plasma chamber into the scrubber and is configured to pressurize the product gas in the scrubber when the flow controller is positioned to restrict the flow of product gas from the scrubber. The pressurized product gas accumulates within the scrubber and is at least partially scrubbed of NO.sub.2 prior to passage through the flow controller.