An apparatus for collecting a gaseous pollutant from air within a poultry or other concentrated animal feeding enclosure may comprise multiple vertical panel-beds each containing a solid sorbent; a fan to pass the air within the poultry enclosure through the multiple vertical panel-beds and over the solid sorbent; an outlet gate configured to release the solid sorbent from the multiple vertical panel-beds after the fan passes the air over the solid sorbent; a regeneration vessel configured to regenerate the released solid sorbent by recovering the gaseous pollutant from the released solid sorbent; and a conveyor configured to return the regenerated solid sorbent to the multiple vertical panel-beds.

Compressor installation includes a compressor device, a compressor element, a compressed gas outlet, a compressed gas outlet pipe connected to the compressor device, and a dryer connecting to the outlet pipe with a desiccant for drying the compressed gas coming from the compressor device. The dryer includes a drying section and a regeneration section with an entry and an exit for a regeneration gas. A regeneration pipe is connected to the entry of the regeneration section. In the regeneration pipe, a first heat exchanger is provided for heating the regeneration gas. The compressor installation includes a heat pipe with a first end which is in contact with a hotspot at a location in the compressor device where the temperature is higher than the temperature at the outlet of the compressor element and with a second end which is in contact with a secondary section of the first heat exchanger.

Method and apparatus for condensing a majority of the solvent in a process gas stream at low temperatures, e.g., below the freezing point of water, ca. −5° C. The gas stream exiting the condenser step may be further processed in one or more emission control devices, such as a single or multi-step series of concentrator devices, such as zeolite concentrator devices. One or more emission control operations can be carried out downstream of the single or multi-step concentrators. The aforementioned condensing process enables the one or more concentrators to operate in a favorable temperature range for removal of 99% or more of VOC, thereby meeting or exceeding strict environmental regulations.

A reusable, air cleaning device includes: (a) a top frame having a top perimeter edge that encloses a top area, (b) a plurality of top screens, each with a top bounding edge and configured to cover the top area, (c) a bottom frame having a bottom perimeter edge that encloses a bottom area, (d) a plurality of bottom screens, each with a bottom bounding edge and configured to cover the bottom area, (e) an attachment device configured to temporarily hold the frames together so that the top frame lies above the bottom frame to create a confined space between the screens, (f) a locking device configured to temporarily lock the frames together, (g) activated carbon granules that are distributed on the bottom screen, and wherein the plurality of screens are configured to have a combination of sizes that prevent the activated carbon granules from passing through the screens.

The principles and embodiments of the present invention relate to methods and systems for safely providing NO to a recipient for inhalation therapy. There are many potential safety issues that may arise from using a reactor cartridge that converts NO.sub.2 to NO, including exhaustion of consumable reactants of the cartridge reactor. Accordingly, various embodiments of the present invention provide systems and methods of determining the remaining useful life of a NO2-to-NO reactor cartridge and/or a break-through of NO.sub.2, and providing an indication of the remaining useful life and/or break-through.

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.

A purge control unit opens the purge control valve to supply, as purge gas to an intake passage, the evaporative fuel together with air in response to a predetermined purge request. An air-fuel ratio detection unit detects an air-fuel ratio of the internal combustion engine. A concentration learning unit estimates a fuel concentration in the purge gas based on a change in the air-fuel ratio when the purge control unit causes the purge gas to be supplied to the intake passage and to perform a fuel concentration learning to update a concentration learning value, which is a learning value of the fuel concentration in the purge gas, based on the estimated fuel concentration. An injection control unit corrects a fuel injection amount based on the concentration learning value in a period in which the concentration learning unit performs the fuel concentration learning in the lean combustion operation.

A filter for a sorbent regeneration process includes a base, a central rod, support frames, and a filter screen. The central rod is coupled to the base and defines a longitudinal axis of the filter. Each of the support frames are coupled to and protrude radially from the central rod. Each of the support frames are coupled to the base. For each pair of neighboring support frames, the filter includes a triangular support member disposed between the pair of neighboring support frames. Each triangular member is coupled to the central rod and to each of the neighboring support frames. The filter screen surrounds the support frames and is coupled to the support frames and to the base.

An integrated amine and redox gas treatment system is configured to treat an influent hydrocarbon containing stream. The system includes a reduction oxidation unit connected directly downstream of an amine unit. The amine unit is configured to separate the influent fluid stream into a first amine effluent stream including hydrocarbons and a second amine effluent stream including a connection pressure and comprising CO.sub.2. The reduction oxidation unit is configured to receive the second amine effluent stream from the amine unit and operate at the connection pressure while releasing a reduction oxidation effluent stream including purified CO.sub.2. The connection pressure includes a single pressure or a plurality of pressures at which both the amine unit and the reduction oxidation unit are configured to operate.

A canister includes a casing defining an adsorbent chamber. The casing includes a tank port in fluid communication with a fuel tank and an atmospheric port in fluid communication with the atmosphere. The canister includes at least three adsorbent sections arranged in series in the adsorbent chamber. The at least three adsorbent sections include a first adsorbent section proximate to the atmospheric port, a second adsorbent section disposed on a tank port side of the first adsorbent section, and a third adsorbent section disposed on a tank port side of the second adsorbent section. The first adsorbent section contains a first adsorbent, the second adsorbent section contains a second adsorbent, and the third adsorbent section contains a third adsorbent. An adsorption capacity of the first adsorbent is equal to or greater than an adsorption capacity of the second adsorbent. The adsorption capacity of the second adsorbent is greater than an adsorption capacity of the third adsorbent.