Abstract: An improved long-range facial recognition system is provided. The facial recognition system includes an integrated, rifle-like mounting platform with modular and interchangeable components, including a machine-vision camera, a facial recognition module, and an aiming scope. The mounting platform includes an elongated frame, a hand grip, a shoulder stock, and an underbody support attachment for an optional bipod. The mounting platform provides an intuitive, shoulder-operated support structure for stabilizing the machine-vision camera and reducing vibrations that otherwise inhibit long distance imaging.

Abstract: Various embodiments include an exemplary design of an apparatus and related process to reduce or eliminate de-gassing from a liquid precursor during dispensing of the liquid precursor under vacuum. In one embodiment, the apparatus includes a liquid-flow controller configured to be coupled to a liquid-supply vessel containing the liquid precursor, and at least one valve hydraulically coupled downstream of and to the liquid-flow controller by a liquid line. The at least one valve is to be opened and closed to maintain a minimum pressure that is sufficiently high enough to reduce or prevent degassing of the liquid precursor throughout the liquid line. An atomizer is hydraulically coupled downstream of and to the at least one valve. The atomizer can produce droplets of the liquid precursor and is further to be coupled on a downstream side to a vacuum source. Other methods and apparatuses are disclosed.

Abstract: Provided is a control device configured to be able to execute a forced regeneration process in an engine which includes a DOC and DPF disposed in an exhaust passage of the engine, and a temperature increase unit including an exhaust throttle valve, for increasing a temperature of each of the DOC and the DPF. The forced regeneration process includes a first temperature increase process of controlling the temperature increase unit such that the temperature of the DOC is increased to a first temperature, and a second temperature increase process of controlling the temperature increase unit such that the temperature of the DPF is increased to a second temperature which is higher than the first temperature after completion of the first temperature increase process.

Abstract: A process for the production of ammonia and urea in an ammonia-urea integrated plant comprising an ammonia section and a tied-in urea section, wherein a hydrocarbon is reformed to produce ammonia make-up synthesis gas; said make-up gas is purified by shift conversion and removal of carbon dioxide; carbon dioxide is removed from the make-up gas by a first and a second CO2 removal sections; the first section removes CO2 by absorption with a suitable medium, and the second section removes CO2 by washing with a carbamate solution taken from the urea section; the make-up gas is reacted to produce ammonia; the CO2 removed from the make-up gas and at least part of the ammonia are used to produce urea.

Abstract: Adsorbers have many purposes in chemical, gas-processing, and petrochemical plants. Adsorbers may be used to remove components from gas streams. Adsorbers may be subjected to various issues, including but not limited to moisture breakthrough, spent catalyst, too high or too low pressure drop, over or under heating, over or under cooling, too high or too low flow rates, which can affect their performance or result in a shutdown of the adsorbers. Monitoring the adsorbers and the processes using adsorbers may be performed to determine if the adsorbent bed is reaching saturation, other problems are occurring, or if equipment failures are imminent. Monitoring also helps to predict behavior or problems in different adsorbers used in the same plant or in other plants and/or processes.

Abstract: A device for separating gases comprises the following components: a source for the gases and flow adjustment means; a membrane unit for the production of a permeate gas and a retentate gas, one of which is the product gas; purity determining means for the product gas; a first control unit for the device; a retentate control system and a product gas pressure measurement, whereby the source has a second control unit for the flow adjustment means as a function of a target value of the gases and the first control unit is connected to the second control unit and to the retentate control system, whereby the first control unit can determine the target value and can control the retentate control system.

Abstract: A valve (18), for a valve assembly (10) for regulating the pressure of a fluid guided in a hydraulic system for supplying pressure to at least one hydraulic consumer (12a, 12b), includes a pilot control stage (48) and a main control stage (38) for at least partially clearing or blocking a fluid path from a supply connection (P) to an outflow connection (T). A relief stage (54) for pressure relief of a fluid chamber is arranged between the pilot control stage (48) and the main control stage (38). The relief stage (54) compares the existing load pressure at load terminal (LS) dedicated to the hydraulic consumer (12a, 12b) with the outflow pressure at the outflow connection (T), clearing the pressure relief if both pressures are approximately the same. The relief stage (54) can be directly connected to the load connection (LS) and can be charged with load pressure.

Abstract: Embodiments of mechanisms for processing a wafer are provided. A method for processing a wafer includes creating an exhaust flow in a fluid conduit assembly that is connected to a process module used for processing the wafer. The method also includes detecting the exhaust pressure in the fluid conduit assembly. The method further includes determining whether the exhaust pressure meets a set point. In addition, the method includes regulating the exhaust flow if the exhaust pressure fails to meet the set point.

Abstract: A method of using the natural gas storage facility to reduce the effect of diurnal demand on a natural gas source includes introducing natural gas into the natural gas storage facility, separating the natural gas into a heavy natural gas component and a light natural gas component, and retaining the components during a non-peak period of demand. The natural gas storage facility includes a guard bed system and an adsorption bed system. The method also includes releasing the heavy and light natural gas components, mixing them into a released natural gas component product and introducing it to the natural gas source during a peak period of demand.

Abstract: A combustion engine comprises a suction valve system for discharging blow-by gas from the crankcase into an air inlet channel for the cylinders. The suction valve system is driven by an electromotor which is connected to a power source. The system comprises a rev counter which measures the rpm of the suction valve system, as well as a control unit which is connected to the power source, the rev counter and the engine management system. The control unit can set predefined engine conditions as well as the power flowing to the suction valve system to have this system rotate at a predefined speed. The value of the set power is a measurement for the blow-by. In lieu of regulating the power flowing to the suction valve system, the control unit can also set the power flowing to the suction valve system to a predefined value. The rev counter then measures the rpm of the suction valve system, which is a measurement for the blow-by.

Abstract: Environmental control units are disclosed. In an aspect, an environmental control unit for use with additive manufacturing and other VOC and particle emitting processes are disclosed. In an aspect, an environmental control unit comprising one or more filters, an air handler, a temperature control device, one or more sensors and a control unit is disclosed.

Abstract: Embodiments of mechanisms for controlling a gas flow in an interface module are provided. A method for controlling a gas flow in an enclosure includes providing the enclosure which is capable of containing a substrate. The method also includes providing a gas into the enclosure. The method further includes cleaning the gas. In addition, the method includes actuating the gas to generate the gas flow, and the gas flow passes through the substrate when the substrate is located in the enclosure.

Abstract: The invention relates to an on-site medical gas production plant (100) comprising a unit (50) for purifying gas, such as air, a first compartment (A) for storing purified gas, and a main gas line (10) fluidically connecting the gas purification unit (50) to the said first storage compartment (A). It furthermore comprises a three-way actuated valve (VA) arranged on the main gas line (10) upstream of the first storage compartment (A), and furthermore connected to the atmosphere (at 12) via a vent line (11), as well as an operating device (4) which controls at least the three-way actuated valve (VA), and at least a first gas analysis device (D1) of which a first measurement line (29) is fluidically connected (at 28) to the main line (10), upstream of the three-way actuated valve (VA), and which is electrically connected to the said operating device (4).

Abstract: The present invention provides an air filtering system and method that continuously monitors and samples the air to measure the amount or concentration of suspended particulate matter in an area. Based on the information collected the air filtering system determines the need for and the amount and volume of air filtering that is required. In this way, the air filtering system only operates at the needed capacity to filter the air, and dynamically responds in real time to the fluctuating air contamination levels that occur during various work processes within the space, room or building.

Abstract: One aspect of the present teachings includes a separation membrane arranged in a hollow case. A particular component concentration chamber and a particular component dilution chamber are arranged in series in the hollow case. The particular component concentration chamber is capable of increasing concentration of the particular component by allowing permeation of the particular gas through the separation membrane. The particular component dilution chamber is capable of increasing concentration of the particular component by not allowing permeation of the particular gas through the separation membrane. The particular component concentration chamber and the particular component dilution chamber are configured such that only a gas containing the particular component and permeated through the separation membrane or only a gas containing the particular component not permeated through the separation membrane in one of the chambers disposed on an upstream side (i.e.

Abstract: A smoke evacuator that draws smoke generated during a medical surgical procedure away from the site at which the smoke is generated. The smoke evacuator includes a pump that draws air into a filter. A sensor internal to the filter monitors the smoke in the air stream drawn through the filter. Normally the pump runs at a low speed, a speed sufficient to draw some air in the filter. When the sensor detects the presence of an appreciable amount of smoke in the air stream the sensor sends a signal indicating the air stream is in this state to the pump controller. The controller then increases the pump speed to result in a like increase in the volume of air drawn through the smoke evacuator. Since the sensor is contained in the filter, a new sensor is installed in the system each time a new filter is installed.

Abstract: An air purification system including a Particle Phase Pollutant (PPP) treatment section (9) having an air inlet (14) and an air outlet (15), a particle removal filter, (11) and a blower (12) to draw air from the air inlet (14) of the PPP treatment section (9) to pass through the particle removal filter (11) and exit through the air outlet (15) of the PPP treatment section (9). The system also includes a Gas Phase Pollutant (GPP) treatment section (10) installed at a downstream position of the particle removal filter (11) of the PPP treatment section (9), the GPP treatment section (10) having an air inlet (19) and an air outlet (20), a gas removal filter (16) with high filter air flow resistance, and a blower (17) located at a downstream position of the gas removal filter (16) to draw air from the air inlet (19) of the GPP treatment section (10) to pass through the gas removal filter (16) and exit through the air outlet (20) of the GPP treatment section (10).

Abstract: Disclosed is an HVAC system having one or more air ionization devices for increasing operating efficiency and reduces overall cost by reducing the level of volatile organic compounds in recirculated building air. Also disclosed are combinations of heat exchangers operating in conjunction with ionization to further reduce operating costs. Included are various control sequences for a controller useful for managing air quality using CO2, VOC and other sensors to maintain air quality at reduced cost.

Abstract: A sinter plant gas cleaning system includes a fabric filter device for removing dust particles from a process gas drawn from a sinter strand of a sinter plant. A duct is adapted to allow the process gas drawn from the sinter strand to pass by the fabric filter device. A measurement device measures a concentration of organic compounds of the process gas drawn from the sinter strand. A control system receives a signal from the measurement device and controls the flow of process gas through the duct.

Abstract: The disclosure relates to a membrane testing system for individual evaluation of a plurality of planar membranes subjected to a feed gas on one side and a sweep gas on a second side. The membrane testing system provides a pressurized flow of a feed and sweep gas to each membrane testing cell in a plurality of membrane testing cells while a stream of retentate gas from each membrane testing cell is ported by a retentate multiport valve for sampling or venting, and a stream of permeate gas from each membrane testing cell is ported by a permeate multiport valve for sampling or venting. Back pressure regulators and mass flow controllers act to maintain substantially equivalent gas pressures and flow rates on each side of the planar membrane throughout a sampling cycle. A digital controller may be utilized to position the retentate and permeate multiport valves cyclically, allowing for gas sampling of different membrane cells over an extended period of time.

Abstract: The present invention relates to a separator and more specifically, but not exclusively, to a centrifugal separator for the cleaning of a gaseous fluid. A centrifugal separator is provided as comprising a housing defining an inner space, and a rotor assembly for imparting a rotary motion onto a mixture of substances to be separated. The rotor assembly is located in said inner space and is rotatable about an axis relative to the housing. The rotor assembly comprises an inlet for receiving said mixture of substances, an outlet from which said substances are ejected from the rotor assembly during use, and a flow path for providing fluid communication between the inlet and outlet, wherein the outlet is positioned more radially outward from said axis than the inlet.

Abstract: The present invention relates to a separator and more specifically, but not exclusively, to a centrifugal separator for the cleaning of a gaseous fluid. A centrifugal separator is provided as comprising a housing defining an inner space, and a rotor assembly for imparting a rotary motion onto a mixture of substances to be separated. The rotor assembly is located in said inner space and is rotatable about an axis relative to the housing. The rotor assembly comprises an inlet for receiving said mixture of substances, an outlet from which said substances are ejected from the rotor assembly during use, and a flow path for providing fluid communication between the inlet and outlet, wherein the outlet is positioned more radially outward from said axis than the inlet.

Abstract: Provided is a de-aeration device that de-aerates hydraulic fluid in a hydraulic system (10). The hydraulic fluid is controllably supplied to the de-aeration device (28) in response to one or more sensed parameters. Consequently, the de-aeration device can de-aerate fluid at strategic times during operation of the hydraulic system to prevent a decrease in system performance and prevent cavitation.

Abstract: The present invention relates to a separator and more specifically, but not exclusively, to a centrifugal separator for the cleaning of a gaseous fluid. A centrifugal separator is provided as comprising a housing defining an inner space, and a rotor assembly for imparting a rotary motion onto a mixture of substances to be separated. The rotor assembly is located in said inner space and is rotatable about an axis relative to the housing. The rotor assembly comprises an inlet for receiving said mixture of substances, an outlet from which said substances are ejected from the rotor assembly during use, and a flow path for providing fluid communication between the inlet and outlet, wherein the outlet is positioned more radially outward from said axis than the inlet.

Abstract: The present invention relates to a separator and more specifically, but not exclusively, to a centrifugal separator for the cleaning of a gaseous fluid. A centrifugal separator is provided as comprising a housing defining an inner space, and a rotor assembly for imparting a rotary motion onto a mixture of substances to be separated. The rotor assembly is located in said inner space and is rotatable about an axis relative to the housing. The rotor assembly comprises an inlet for receiving said mixture of substances, an outlet from which said substances are ejected from the rotor assembly during use, and a flow path for providing fluid communication between the inlet and outlet, wherein the outlet is positioned more radially outward from said axis than the inlet.

Abstract: An HVAC system having an air cleaner, a fan configured to selectively generate an air flow, wherein at least a portion of the air flow is passed through the air cleaner, and a controller configured to control the air cleaner in response to at least one of a setting for controlling the fan and an operation characteristic of the fan is disclosed. A method of controlling an air cleaner by determining an air flow related criterion value, wherein the air flow is associated with an air flow through an air cleaner, comparing the determined air flow related criterion value to a threshold criterion value, and controlling the air cleaner as a function of a result of comparing the determined air flow related criterion value to the threshold criterion value is disclosed. A method of controlling an ozone concentration outputted by an air cleaner is disclosed.

Abstract: The present invention relates to a separator and more specifically, but not exclusively, to a centrifugal separator for the cleaning of a gaseous fluid. A centrifugal separator is provided as comprising a housing defining an inner space, and a rotor assembly for imparting a rotary motion onto a mixture of substances to be separated. The rotor assembly is located in said inner space and is rotatable about an axis relative to the housing. The rotor assembly comprises an inlet for receiving said mixture of substances, an outlet from which said substances are ejected from the rotor assembly during use, and a flow path for providing fluid communication between the inlet and outlet, wherein the outlet is positioned more radially outward from said axis than the inlet.

Abstract: High molecular weight (HMW) gases are separated from an exhaust gas of a combustion source using a blower and an interior vent within the exhaust stack. The interior vent includes a vent wall having a top portion attached to the interior surface of the exhaust stack along the entire inner perimeter of the exhaust stack and a lower portion that extends downward into the exhaust stack to form an annular space or gap between the vent wall and the interior surface of the exhaust stack, and at least one opening in the interior surface of the exhaust stack between the top and bottom portions of the vent wall. The blower creates a tangential flow of the exhaust gas with sufficient centrifugal force to concentrate substantially all of the HMW gases along the inner surface of the exhaust stack. A transfer pipe removes the HMW gases from the interior vent.

Abstract: The present invention relates to a separator and more specifically, but not exclusively, to a centrifugal separator for the cleaning of a gaseous fluid. A centrifugal separator is provided as comprising a housing defining an inner space, and a rotor assembly for imparting a rotary motion onto a mixture of substances to be separated. The rotor assembly is located in said inner space and is rotatable about an axis relative to the housing. The rotor assembly comprises an inlet for receiving said mixture of substances, an outlet from which said substances are ejected from the rotor assembly during use, and a flow path for providing fluid communication between the inlet and outlet, wherein the outlet is positioned more radially outward from said axis than the inlet.

Abstract: High molecular weight (HMW) gases are separated from an exhaust gas of a combustion source using a blower and an interior vent within the exhaust stack. The interior vent includes a vent wall having a top portion attached to the interior surface of the exhaust stack along the entire inner perimeter of the exhaust stack and a lower portion that extends downward into the exhaust stack to form an annular space or gap between the vent wall and the interior surface of the exhaust stack, and at least one opening in the interior surface of the exhaust stack between the top and bottom portions of the vent wall. The blower creates a tangential flow of the exhaust gas with sufficient centrifugal force to concentrate substantially all of the HMW gases along the inner surface of the exhaust stack. A transfer pipe removes the HMW gases from the interior vent.

Abstract: A method for operating a device with at least one partial programme step of drying may be achieved with which it is possible to operate devices with at least a partial operating step of drying as economically as possible, with efficient drying of the material for drying and keeping the associated energy requirement as low as possible, whereby, during the at least one partial programme step of drying, air is drawn from a treatment chamber and/or from the ambient air, through an absorption column and then introduced into the treatment chamber, whereby the absorption column contains a reversible dehydrating agent and humidity is drawn from the air during the passage thereof.

Abstract: An exhaust gas treatment system treats a mixed gas containing at least hydrogen and monosilane discharged from a semiconductor fabrication equipment. The exhaust gas treatment system includes a pump unit which emits the mixed gas discharged from the semiconductor fabrication equipment, a compressor which compresses the mixed gas emitted by the pump unit and sends the mixed gas to a rear stage, a gas accommodation unit which collects and accommodates the compressed mixed gas, a flow rate control unit which controls a flow rate of the mixed gas supplied from the gas accommodation unit, and a membrane separation unit which causes the hydrogen to selectively permeate therethrough and separates the monosilane and the hydrogen from the mixed gas. Accordingly, the exhaust gas treatment system may be stably operated in a state where a change in pressure of the mixed gas discharged from the semiconductor fabrication equipment is alleviated.

Abstract: An apparatus is configured for filtering a cooling duct of a battery for an electric vehicle. More specifically, a dust sensor is installed in the cooling duct through which cooling air is introduced into the battery for the vehicle and a variable filter is installed in the cooling duct to filter the cooling air and open/close the cooling duct via a driving unit. A control unit configured to control the driving unit according to a signal or sensing value from the dust sensor and a measured temperature of the battery. In particular, when dust is not detected, the cooling duct is fully opened by folding the variable filter. If, however, dust is detected an opening degree of the variable filter is adjusted to close or at least partially close the cooling duct according to the temperature of the battery.

Abstract: A system and method for controlling oxidation of sulfites in a slurry. The system includes a tank having an inlet for receiving a slurry used in wet flue gas desulfurization. The tank also includes an inlet for receiving a gas. The inlet for receiving the gas is configured so that at least a portion of the gas received in the tank is dispersed through at least a portion of the slurry received in the tank. A sensor is configured to measure a sulfite concentration S1 of the slurry received in the tank. In some embodiments, the sensor is a sulfite analyzer. In other embodiments, the sensor is a virtual analyzer. The system includes a controller. Software executing on the controller generates a signal indicative of an adjustment of a flow rate of gas into the tank based at least in part on the sulfite concentration S1.

Abstract: A system and process for the removal of carbon dioxide (CO2) from a feed natural gas having variable flow rates and inlet CO2 levels.

Abstract: A method is described for recycling hydrogen (H2) supplied to a chamber (10) in a gas stream comprising hydrogen and at least one other gas, such as silane. A gas comprising at least hydrogen is drawn from the chamber (10) using a first vacuum pump (32) that exhausts gas therefrom at a sub-atmospheric pressure. A portion of the gas exhausted from the first vacuum pump (32), for example between 70 and 95% of this gas, is diverted away from a second vacuum pump (34) backing the first vacuum pump (32). In one embodiment, the diverted portion of the sub-atmospheric pressure gas is treated to produce a purified gas comprising hydrogen, which is stored in a storage vessel (14). The composition of the purified gas is analysed, and, depending on the results of the analysis, at least one of hydrogen and silane is added to the stored gas so that the composition of the stored gas is similar to that of the gas initially supplied to the chamber (10). Gas is then supplied to the chamber (10) from the storage vessel (14).

Abstract: A first unsintered sheet made of PTFE having a standard specific gravity of 2.16 or more and a second unsintered sheet made of PTFE having a standard specific gravity of less than 2.16 are laminated, and a pressure is applied to a resulting laminated body so as to obtain a pressure-bonded article. The pressure-bonded article is stretched in a specified direction at a temperature lower than a melting point of PTFE, and then the pressure-bonded article is stretched further in the specified direction at a temperature equal to or higher than the melting point of PTFE or heated to a temperature equal to or higher than the melting point of PTFE. Thereafter, the pressure-bonded article stretched in the specified direction is stretched in a width direction perpendicular to the specified direction at a temperature lower than the melting point of PTFE.

Abstract: The invention refers to a plant and a method for separating oil in form of particles and/or mist from a fossil gas mixture for obtaining a separated gas. The plant comprises a centrifugal separator with a stationary casing defining a separation space. The casing permits a pressure of at least 10 bars in the separation space. The centrifugal separator comprises an inlet for the gas mixture, a gas outlet for the separated gas and an oil outlet for discharging separated oil. A separating member for separating the gas mixture comprises a plurality of separating discs and is provided in the separation space. A drive motor is connected to the separating member via a spindle and rotate the separating member about an axis (x) of rotation.

Abstract: The present invention provides a biological H2S removal system for the treatment of process gas, comprising: a housing that receives a process gas stream through a gas inlet, the housing comprising a plurality of layers through which the process gas stream flows while it is treated for H2S removal, and a gas outlet through which a treated gas stream exits; wherein air is added to the process gas stream prior to the process gas stream entering the housing.

Abstract: A method for rapidly emptying an activated carbon filter while using an HC sensor (concentration change). A device for a tank system, for a motor vehicle having the device for a tank system and to a method for emptying an activated carbon filter for a tank system. The concentration of volatile components which are flushed from the activated carbon filter is detected by a concentration sensor. The concentration sensor is used as an early warning sensor to prevent any disturbances of mixture production of an engine.

Abstract: Embodiments of methods for controlling impurity buildup on adsorbent for a pressure swing adsorption (PSA) process are provided. The method comprises the steps of operating the PSA process including performing (a) a first depressurizing equalization step, and (b) a providing purge step. Impurities are sensed in an effluent from the PSA process. If the impurities sensed in the effluent have reached a predetermined upper impurity level, then the PSA process is operated including performing (b) and not (a).

Abstract: The Shelf Life Extending Container for fruits and vegetables extends the shelf life of various fresh fruits and vegetables and vase life of fresh cut flowers by changing the atmosphere in which these living products are stored and respires. The Shelf Life Extending Container does this by utilizing a Gas Permeable Non-Woven Fabric Based Film. The high oxygen and carbon dioxide permeability of the Gas Permeable Non-Woven Fabric Based Film establishes an ideal atmosphere for the multiple perishable items stored within the Shelf life Extending Container, and therefore extends their shelf life. The establishment of lower oxygen and carbon dioxide atmospheres within the Shelf Life Extending Container using the Gas Permeable Non-Woven Fabric Based Film, also leads to a reduction in the respiration rate of the perishable items stored.

Abstract: A counter flow scrubber column and method for removing volatile organic compounds from a fluid stream using a packed column, a columns with trays and a biodiesel or a biomass and allowing a user to view the status of the cleaned vapor using an executive dashboard 24 hours a day, 7 days a week.

Abstract: A fluidized reactor system for removing impurities from a gas and an associated process are provided. The system includes a fluidized absorber for contacting a feed gas with a sorbent stream to reduce the impurity content of the feed gas; a fluidized solids regenerator for contacting an impurity loaded sorbent stream with a regeneration gas to reduce the impurity content of the sorbent stream; a first non-mechanical gas seal forming solids transfer device adapted to receive an impurity loaded sorbent stream from the absorber and transport the impurity loaded sorbent stream to the regenerator at a controllable flow rate in response to an aeration gas; and a second non-mechanical gas seal forming solids transfer device adapted to receive a sorbent stream of reduced impurity content from the regenerator and transfer the sorbent stream of reduced impurity content to the absorber without changing the flow rate of the sorbent stream.

Abstract: A process for gas purification or separation intended to produce a gas mixture containing mainly hydrogen and, to a minor extent CO, it being imperative for the CO content to remain below a set value is presented. This invention particularly relates to adsorption processes and even more particularly to processes of the PSA (“Pressure Swing Adsorption”) type.

Abstract: High molecular weight (HMW) gases are separated from an exhaust gas of a combustion source using a blower and an interior vent within the exhaust stack. The interior vent includes a vent wall having a top portion attached to the interior surface of the exhaust stack along the entire inner perimeter of the exhaust stack and a lower portion that extends downward into the exhaust stack to form an annular space or gap between the vent wall and the interior surface of the exhaust stack, and at least one opening in the interior surface of the exhaust stack between the top and bottom portions of the vent wall. The blower creates a tangential flow of the exhaust gas with sufficient centrifugal force to concentrate substantially all of the HMW gases along the inner surface of the exhaust stack. A transfer pipe removes the HMW gases from the interior vent.

Abstract: The present invention is a biogas processing system having a compressor having a biogas input and output, a pump having a water input and output, a scrubber tower having a mixing chamber connected to a biogas input, a water pump input, a water output, and a processed biogas output, and a filtration member connected to the water output to remove contaminants from the water exiting the first scrubber tower. The system also includes devices for heating and cooling the recycled flow of water to enhance the ability of the water to absorb contaminants from the biogas and the ability of a stripper to remove absorbed contaminants from the water in a closed loop water system, and a controller for closely controlling the operating parameters of the system to achieve safe and optimal operation of the system.

Abstract: A container having a plurality of walls, and at least one inlet and/or outlet, said container including an apparatus for controlling the composition of gases within the container, the apparatus including at least one sensor, at least one controller and at least one gas permeable membrane, through which membrane different gases can pass at different rates, said membrane dividing the container into a first region being for holding cargo and a second region defining a gas buffer region, and said membrane being permeable permitting for nitrogen, oxygen and carbon dioxide at different flow rates, wherein the buffer region is in communication with the ambient atmosphere through one or more vacuum pump(s).

Abstract: The invention relates to a method for producing gaseous oxygen by adsorption from compressed air, comprising: a) using at least one adsorption unit for generating gaseous oxygen having a purity greater than or equal to a predetermined purity threshold value (VPS) and according to a variable production flow rate (Dp); b) recovering the gaseous oxygen produced in a); c) measuring the purity of the gaseous oxygen (Pp) produced in step a) and comparing same with a preset purity threshold value (VPS); and d) adjusting the oxygen production flow rate (Dp) on the basis of the comparison of step c) such that: i) reducing the oxygen production flow rate (Dp) when the oxygen purity (Pp) measured in step c) is such that VPS>Pp; or ii) increasing the production flow rate (Dp) when the oxygen purity determined in step c) is such that VPS<Pp in order to obtain a gaseous oxygen purity (Pp) such that VPS=Pp+X, with X<0.5%, X being the standard deviation.

Abstract: A method for determining a low cylinder pressure condition of a gas chromatograph includes providing gas from the cylinder to an inlet of the gas chromatograph. In particular, the gas is provided at a predetermined inlet pressure that is higher than an inlet pressure that is required for a predetermined gas chromatographic analysis routine. The inlet pressure of the gas being supplied to the inlet is increased, in order to attempt to achieve a predetermined check value. It is then determined if the inlet pressure actually increases to at least the predetermined check value. If it is determined that the inlet pressure of the gas does not increase to at least the predetermined check value, then an indication of a low cylinder pressure condition is provided.