Abstract: A system and method of cleaning a gas of undesired particulate, aromas, and gases is disclosed. The invention uses a centrifugal scrubbing space to liquid wet a gas and includes a container for containing a liquid with a pump to circulate the liquid. The gas is pumped from outside the container, through an inlet cylinder, a fan wheel, a scrubbing space, over a surface of the liquid, through a cyclone space, and out a top outlet. The liquid may be pumped with a standard pump, a cone-shaped rotatable case attached to the fan wheel, or a pump with a non-case rotatable case and an impeller attached to a same shaft as the fan wheel. The gas inlet may be positioned below or above the apparatus, and the fan motor may be positioned inside or outside the apparatus.

Abstract: A system for delivering dry compressed gas is provided, the gas being separated from any entrained liquid lubricant and then passed through a moisture absorber column to interact with a moisture-removing fluid. The fluid is a liquid lubricant or is maintained in a separate closed circuit relative to the liquid lubricant. A moisture stripping device receives some of the gas from the absorber column, which is passed in moisture exchange relation with the fluid before the fluid enters the column. The column has a housing defining a vertical absorption zone, and partition plates each defining gas flow holes. The plates have at least one tube passing therethrough, with an open upper end above one plate, and a lower end adjacent the next lower plate. The fluid passes down the tubes and across a top surface of each plate, with the gas flow passing upwardly through the holes in the plates.

Abstract: An air cleaning apparatus is disclosed which, in one embodiment, has: an inlet for ambient air; an outlet for purified air; a mechanism for the uptake of a scrubbing liquor and for the removal of impurities dissolved or dispersed in the ambient air by contact with said scrubbing liquor; an inlet for feeding a scrubbing liquor from a scrubbing liquor feeding tank; an outlet for discharging used scrubbing liquor; and a blower for drawing ambient air into the apparatus, flowing the air through the apparatus and discharging the purified air from the apparatus. A kit including an apparatus as described above and a refill of scrubbing liquor ingredients, or of a scrubbing liquor concentrate or of a ready-to-use scrubbing liquor is also disclosed.

Abstract: A rotary compressor system having a drive rotary compressor unit, a separator vessel (13) receiving compressed gas and entrained liquid from said compressor for collecting the liquid therein and for returning the liquid to a lower pressure zone of the compressor and a moisture absorber receiving compressed gas flow leaving a separation zone of the separator vessel and passing the compressed gas flow relative to a flow of said liquid such that moisture in the compressed gas flow is transferred to said liquid.

Abstract: A recovery plant for recovery of a gaseous component from a process gas has an absorber employing a lean solvent and a semi-lean solvent that absorb the gaseous component from the process gas, thereby producing a rich solvent, a semi-rich solvent, and a lean process gas. A regenerator extracts the gaseous component from the rich solvent, thereby regenerating the lean solvent and the semi-lean solvent. A solvent flow control element combines at least part of the semi-rich solvent and the semi-lean solvent to form a mixed solvent, and a cooler cools the mixed solvent that is subsequently fed into the absorber. In a method of removing a gaseous component from a process gas, a stream of lean solvent and a stream of semi-lean solvent are provided. In another step, the stream of lean solvent and the stream of semi-lean solvent contact the process gas in an absorber to produce a stream of semi-rich solvent and rich solvent.

Abstract: An improved methane wash cycle is disclosed wherein a reduced amount of methane wash is required, thereby allowing for savings in energy costs in operation of the cycle and capital costs in constructing the cycle. Further embodiments allow for an energy recovery and an enhanced recovery of a carbon monoxide and/or hydrogen product.

Abstract: An apparatus for efficiently removing VOC from a plurality of remotely located sources of VOC contaminated gas streams includes a plurality of liquid absorbers, each located near and communicating with a source of a VOC contaminated gas stream, the liquid absorbers associating the VOC with a scrubbing liquid. A gas conduit is associated with each liquid absorber to allow for the recycling of properly conditioned gas to the VOC source. A conduit is connected to each liquid absorber for conveying VOC laden scrubbing liquid from the liquid absorber to a separating apparatus in fluid communication with each of the conduits. A conduit recycles the scrubbing liquid from the separating apparatus to at least one of the plurality of liquid absorbers. A heat exchanger associated with the scrubbing liquid after separation transfers heat to the scrubbing liquid prior to separation, or to an HVAC system, or to the scrubbing liquid prior to the liquid absorber.

Abstract: An improved method and structure for purification of an acid gas stream by using raw fuel gas as a stripper to remove the BTEX and VOCs from the liquid amine stream. The improved method is particularly useful for purification of acid gas streams with BTEX contaminant levels in excess of environmentally acceptable levels for standard processing. Raw fuel gas is utilized at moderate temperatures and pressures, the uptake of BTEX and VOCs reduces the level of these compounds in the waste amine stream to environmentally acceptable levels, and the remaining contaminants may then be dealt with by ordinary means. Levels of H2S and CO2. in the liquid amine stream are also reduced.

Abstract: An absorption apparatus for an absorption chiller includes a series of eliminator blades situated between a vaporizing chamber (e.g., a generator or an evaporator) and a devaporizing chamber (e.g., a condenser or an absorber). Each of the blades includes an upstream leg, a downstream leg and a deflection tab. With respect to the direction of vapor flowing from the vaporizing chamber to the devaporizing chamber, the upstream leg is at an upward incline and the downstream leg is at a downward incline. The deflection tab extends out over the downstream leg to create a concavity that helps prevent liquid in the devaporizing chamber from splashing back across the eliminator blade. In some embodiments, a tube support plate includes a series of holes for not only supporting the tube bundles of two heat exchangers but also for supporting the eliminator blades.

Abstract: The present invention relates to a device for treatment of an exhaust gas or a flue gas stream. The device comprises one or more entities (3) embracing frictional elements (10, 20, 110, 230, 310, 330, 400) attached to, and which are able to rotate with, a hollow axle (4) and one or more pipes (5) running axially inside the hollow axle for transporting of necessary auxiliary fluids to effect the gas treatment. Furthermore, the invention relates to a method for treatment of an exhaust gas or a flue gas stream flowing through an exhaust gas duct or flue gas duct. The method comprises that the gas stream is conducted through one or more entities embracing functional elements attached to, and rotating with, a hollow, rotating axle and where necessary auxiliary fluids effecting the gas treatment enter and leave the functional element in each entity through pipes running axially inside the axle. The invention is particularly applicable for energy recovery and/or removal of CO2 from exhaust or flue gas.

Abstract: Effluent gas cleaning process and apparatus for effectively removing particulates in the 0.01 micron to 0.1 micron diameter range, and for removing water-soluble gaseous contaminants, by first bringing the effluent to a relatively high temperature and humidity in a first stage, and then exposing the effluent to copious quantities of small cool water droplets in a second stage, for particular combinations of: the first stage relative humidity; the first-to-second stage droplet temperature difference; the stage two water droplet mass flow rate vs. effluent flow rate; the second stage droplet size; the travel time of the effluent during exposure to the cool droplets; and the electrical charge state of the second stage water droplets and opposite charge state of the particulates. The combinations enhance effluent cleaning through the combined operation of up to four distinct physical processes which can be made to occur during the second stage.

Abstract: A system and method for dehumidifying air including a multiple effect evaporator that creates a concentrated desiccant solution. The desiccant solution from the multiple effect evaporator is conveyed to a desiccant spray chamber that sprays the cooled desiccant solution into an air stream. The desiccant solution absorbs water vapor from the air stream creating a desiccant and water solution. A conduit transfers the water and desiccant solution to the multiple effect evaporator for removal of the water from the desiccant solution.

Abstract: An exhaust gas cooling system includes, an exhaust gas-processing tower provided at a lower portion with an inlet port for an exhaust gas containing moisture and also provided at an upper interior space with a spray member, a circulating passageway for circulating exhaust gas-processing water from the bottom of the exhaust gas-processing tower to the spray member, a heat exchanger provided at a midway of the circulating passageway for, cooling the exhaust gas-processing water, a cooling tower for generating cooling water by taking advantage of the evaporation heat of water, thereby allowing the cooling water to circulate through the heat exchanger, and a water supply passageway for supplying the exhaust gas-processing water passing through circulating passageway to the cooling tower as part of-make-up water.

Abstract: The present invention relates to a method for separation of gas constituents from a multicomponent gaseous mixture employing a hydrate promoter. The method for separation of gas constituents from a multicomponent gaseous mixture comprises the steps of reacting an aqueous solution containing a hydrate promoter with a multicomponent gaseous mixture to form a gas hydrate condensed with gas constituents of high gas hydrate forming power and dissociating a specific gas component from the gas hydrate. In accordance with the present invention, a specific gas component can be separated from a multicomponent gaseous mixture under a pressure much lower than that of the prior art method, which makes possible its practical application in various industrial areas emitting exhaust gases.

Abstract: An exhaust gas recovery method and apparatus comprising: a first process in which volatile organic compound gas in exhaust gas from a exhaust gas discharging source is absorbed into water by a scrubber; a second process in which water including the volatile organic compound, which is obtained in the first process, is frozen and the volatile organic compound herein concentrated such that the water including the volatile organic compound is separated into water including a high concentration of the volatile organic compound, level of concentration being higher than that of the water including the volatile organic compound which is obtained in the first process, and ice; a third process in which cold of the ice obtained in the second process is used; and a fourth process in which the water including a high concentration of the volatile organic compound, which is obtained in the second process, is reused, is provided.

Abstract: An apparatus for removing solvents, utilizing a solvent removal unit equipped with an upper liquid supporting member provided with a bottom portion which supports the solvent suspension and which is provided with an opened hole, and a lower liquid supporting member provided at a lower side and at a distance from said upper liquid supporting member, such that the solvent suspension is dropped from the upper liquid supporting member to the lower liquid supporting member, and that the solvent suspension is brought into contact with a gaseous phase while it is being dropped.

Abstract: Systems are provided for the selective removal of CO2 from a multicomponent gaseous stream to provide a CO2 depleted gaseous stream having at least a reduction in the concentration of CO2 relative to the untreated multicomponent gaseous stream. In the subject systems, the multicomponent gaseous stream is contacted with CO2 nucleated water under conditions of selective CO2 clathrate formation, where the CO2 nucleated water serves as a liquid absorbent or adsorbent to produce a CO2 clathrate slurry and CO2 depleted gaseous stream. In a preferred embodiment, the CO2 clathrate slurry is then decomposed to produce CO2 gas and nucleated water. The subject systems find use in a variety of applications where it is desired to selectively remove CO2 from a multicomponent gaseous stream, including chemical feedstock processing applications and air emissions control applications.

Abstract: Systems are provided for the selective removal of CO2 from a multicomponent gaseous stream to provide a CO2 depleted gaseous stream having at least a reduction in the concentration of CO2 relative to the untreated multicomponent gaseous stream. In the subject systems, the multicomponent gaseous stream is contacted with CO2 nucleated water under conditions of selective CO2 clathrate formation, where the CO2 nucleated water serves as liquid solvent to produce a CO2 clathrate slurry and CO2 depleted gaseous stream. In a preferred embodiment, the CO2 clathrate slurry is then decomposed to produce CO2 gas and nucleated water. The subject systems find use in a variety of applications where it is desired to selectively remove CO2 from a multicomponent gaseous stream, including chemical feedstock processing applications and air emissions control applications.

Abstract: A device for improving the quality of indoor air comprising a casing (2) with an air inlet (3) and an air outlet (5), a member (7) arranged to cause air in a room, in which the casing is placed, to flow in through the inlet and inside the casing to the outlet and therefrom out into the room again, and leaf surfaces and water nozzles (9, 11) adapted to influence the quality of the air passing through the casing. The casing also contains leaf plants (9) and the member (7) is provided in order to cause the air to flow past the leaf surfaces of the plants in order to remove contaminations and particles from the air by absorption thereof by the leaves of the plants.

Abstract: A system for regenerating chemical solvent loaded with acid gas with improved energy efficiency wherein the chemical solvent is partially flash vaporized, heated, and passed in countercurrent mass transfer contact with nitrogen gas.

Abstract: The invention is a device for processing a fluid F comprising at least one fraction A to be separated, the fraction to be separated being soluble in a solvent phase. The device includes at least one delivery for the fluid F to be processed; at least one delivery for the solvent phase; at least one two-phase compression device providing homogenization of the fluid F and the solvent phase which dissolves most of the fraction A in the solvent phase and produces a mixture of a solution F1 comprising of solvent phase S and the fraction A dissolved in the solvent phase, and of a fluid F1 which has been depleted of most of the fraction A; and a separation device coupled to an output of the at least one two-phase compression device which discharges respectively solution F1 comprising the solvent phase and the fraction A dissolved in the solvent phase and fluid F2.

Abstract: A process of separating water from ambient air involves a liquid desiccant to first withdraw water from air and treatment of the liquid desiccant to produce water and regenerated desiccant. Water lean air is released to the atmosphere. Heat generated in the process is recycled. The drying capacity, or volume of water produced, of the system for a given energy input is favored over the production of dried air.

Abstract: A water filtering type air cleaning unit includes a housing having an upper side defining an air draining conduit and a lower side defining an air inlet conduit, a water permeable air filtering device mounted in the air draining conduit and including a plurality of stacked air filtering pipes, a water permeable disk mounted on a top edge of the water permeable air filtering device, a cold water heat exchanging device mounted in the air inlet conduit and including a cold water inlet and a cold water outlet connected with the water permeable disk, a water pump mounted in the air inlet conduit and connected with the cold water inlet, a water tank mounted in the air inlet conduit and connected with the water permeable air filtering device and the water pump, a natural convention device mounted in the housing and including a plurality of closed circulating pipes each filled with a refrigerant, and a vent mounted in the housing and including an upper side formed with an air outlet and an air inlet.

Abstract: Disclosed is a contaminated waste steam heat recovery apparatus 10 and method therefore which includes a primary condensing unit 38, a low pressure water washing unit 26, a liquid to liquid heat exchanger 36 and a vent fan 31. Waste gas is ducted from fryer 11 to a de-super-heating chamber 14 wherein superheated steam is converted to saturated steam by spraying water into the steam using spray nozzles 15. The gas is then introduced into a vertically disposed air to liquid heat exchanger 16 and is drafted downward therethrough. As heat is removed from the waste gas, water vapor in the steam condenses and in the process, collects some of the oil and hydrocarbons present. A plurality of condensate trays 19 are disposed below the bottom end of heat exchanger 16 in a cascading fashion to collect hold the condensate in the airflow path such that it will absorb some of the heat still present in the remaining waste gas.

Abstract: Apparatus for recovering volatile organic compounds (VOC) from VOC/inert gas mixtures leaving tanker holds during crude oil loading includes an absorption column 12 in which incoming VOC is absorbed into cold kerosene, a portion of the VOC rich kerosene leaving the absorption column being cooled in a cooler 88 and returned to the absorption column to contact incoming VOC/inert gas mixture and absorb further VOC. The remainder of the rich kerosene leaving the absorption column 12 passes to a buffer tank 34 where it is held. It is then pumped to an elevated pressure distillation (stripper) column 46, where VOC is separated from the kerosene by conventional rectification. VOC vapor leaving the top of the distillation column is condensed in condenser 72 and held in the VOC reflux tank 76. Liquid VOC from the reflux tank is passed to a crude oil pipeline 82; a portion of the liquid VOC from the reflux tank enters the top of the distillation column to act as reflux.

Abstract: A method of treating gas containing water in order to remove at least part of the water from the gas, including feeding the natural gas to be treated by a first line, with a liquid fraction containing at least an aqueous phase is fed via a second line in the presence of a solvent into a contact zone, so as to bring the gas into direct contact with the liquid fraction over at least a portion of the contact zone. The solvent is a non-hydrocarbon compound other than water, and simultaneously, the gas is cooled in the presence of the solvent in order to condense at least one liquid phase consisting essentially of water in a mixture with the solvent.

Abstract: A vapor recovery system for hydrocarbon storage tanks captures VOCs (volatile organic compounds) which would otherwise escape to the atmosphere, thereby reducing pollutant emissions to the environment. The system includes a wash chamber, where the VOC vapors are sprayed with water at or below ambient temperature to condense the vapors from the air. The liquid hydrocarbons and water then drain downwardly into an accumulator. Due to the immiscibility of water and hydrocarbon fuels, particularly those having high aromatic content such as gasoline, the liquid VOCs are drained off and returned to the storage tank while the water is recycled for further spray cooling of vapors. The spray chamber is also surrounded by a coolant jacket, through which a coolant (water or other suitable liquid) below ambient temperature is circulated. This further reduces the temperature in the spray chamber, to condense additional VOCs and water from the air, as well as cooling the spray water.

Abstract: Recovery of ethanol from the exhaust stacks of a bread-baking oven is achieved by passing the stack emissions through an adiabatic humidifier where the emissions are humidified to near saturation. The unevaporated water content of the humidifier is collected for separation of the ethanol content. The humidified emissions are passed from the humidifier to the vaporization chamber of a heat exchanger where the gas content of the humidified emissions is separated from the moisture content thereof, and the moisture content is collected for recovery of the ethanol content.

Abstract: An apparatus for extracting condensable materials from exhaust gases which are produced by combustion. In a steam injected gas turbine driven powerplant, water is extracted from the exhaust gasses and returned to the cycle for steam raising and injection into the combustor. Exhaust gases pass flow co-currently with a cold water fog, water vapor in the fog condenses on the fog drops, the flow passes through a de-mister coalescing the drops so as to produce a warm rain of condensate, the condensate is cooled with a heat exchanger using a cooling medium such as seawater, and the cooled condensate is returned to the cycle.