Class / Patent application number | Description | Number of patent applications / Date published |
095021000 | Sorbent regenerated | 7 |
20090044698 | VACUUM PRESSURE SWING ABSORPTION SYSTEM AND METHOD - A vacuum pressure swing absorption (VPSA) system and a four-cycle method are provided for separating and concentrating one portion of a gas mixture. A reciprocating piston ( | 02-19-2009 |
20100024640 | ADSORBENT BED REPRESSURIZATION CONTROL METHOD - A method for controlling an adsorption unit and associated compressor that adjusts the flow rate of a compressed feed stream produced by the compressor so that it increases from a nominal flow rate and then decreased back to the nominal flow rate. The increase and decrease of the feed stream flow rate are controlled in accordance with increase and decrease rate functions of adsorbent bed pressure ratio between off-line and on-line adsorbent beds and a triggering pressure ratio at which the feed flow rate decreases. Each of the increase and decrease rate functions is tuned to produce a similar response in the flow of a product stream produced by the adsorption unit. Additionally, repressurization time is controlled by driving it toward a target value that allows the purge stage of regeneration to be maximized and therefore, the degree to which each of the adsorbent beds is regenerated. | 02-04-2010 |
20100050866 | NANOWIRE FILTER, METHOD FOR MANUFACTURING THE SAME, METHOD FOR REMOVING MATERIAL ABSORBED THEREON, AND FILTERING APPARATUS HAVING THE SAME - There are provided a nanowire filter, a method for manufacturing the same, a filtering apparatus having the same, and a method for removing material adsorbed on the nanowire filter. The filtering apparatus includes: a filter having a supporting member and a plurality of nanowires supported on the supporting member and arranged in a crystallized state; and a body into which the filter is inserted and secured, and which has an inlet for guiding an introduced fluid to the filter and an outlet for discharging the fluid filtered through the filter to the outside. | 03-04-2010 |
20110226126 | GENERATING OXYGEN IN HOSPITALS - An arrangement for generating oxygen in a facility is described, which arrangement has at least one unit for generating medical air (V, R), a vacuum system (VS), and a PSA unit (A), which serves to generate an oxygen product stream. According to the invention, the PSA unit (A) and the vacuum system (VS) are interconnected in such a way that the adsorber or adsorbers of the PSA unit (A) can be regenerated by means of the vacuum system (VS), and/or the unit for generating medical air (V, R) is connected to the PSA unit (A) in such a way that at least a subsidiary stream ( | 09-22-2011 |
20140366720 | METHOD AND SYSTEM FOR REMOVING CARBON DIOXIDE FROM FLUE GASES - A method and system for removing carbon dioxide from flue gas emitted by a fossil fuel operated power plant. In the method and system, carbon dioxide is removed from the flue gas by an absorption process using a scrubbing liquid. The charged scrubbing liquid is regenerated in a desorption process. At least some of the energy required for the regeneration process is fed using low-pressure steam that is withdrawn from the steam-water circuit of the power plant before entering a low-pressure steam turbine. The low-pressure steam is fed to an intermediate steam turbine. The low-pressure steam is expanded to a discharge pressure of less than 3.5 bar and is then fed to the desorption process. The pressure for the desorption process is adjusted by a regulation device in accordance with the discharge pressure from the intermediate steam turbine. | 12-18-2014 |
20160159335 | Air Dryer System for a Locomotive with Optimized Purge Air Control - An air dryer system for a locomotive having optimized purge air control over a twin tower desiccant-type air dryer. The computer controlled locomotive brake system is used to determine when the air dryer is being used and approximately how much air flow has actually passed through the active tower of the dryer using the air consumption state, the change of pressure in the second main reservoir, the air compressor on/off state, the total accumulated time of air flow since last purge cycle, and/or the calculated air flow through the air dryer since the last purge cycle. When the actual air flow reaches the capacity of the active tower of the air dryer, the computer controlled locomotive brake system commands the air dryer to perform a purge cycle. The system thus maximizes the use of each tower in the air dryer rather than switching according to a preset time period. | 06-09-2016 |
20160184766 | AMBIENT PRESSURE OPTIMIZING OF SBRB VSA ASU - The air separation unit includes a single adsorption bed downstream of a reversing blower and configured to operate on the principle of vacuum swing adsorption. An optimal ambient air pressure to vacuum pressure ratio within an adsorber vessel downstream of the reversible blower is identified. When the air separation unit is operated at ambient conditions where ambient air pressure is different, such as at higher altitude (or lower altitude) a pressure ratio across the blower when drawing a vacuum on the adsorption bed is maintained for optimal blower power to oxygen production performance. Time for recovery of the adsorption bed can also be modified due to the lower absolute pressure achieved within the adsorption bed when the pressure ratio across the blower is maintained. An ASU is thus provided which is optimized for performance at various different altitudes without requiring modification of equipment within the ASU. | 06-30-2016 |