Class / Patent application number | Description | Number of patent applications / Date published |
095011000 | Flow of fluid mixture to sorber stopped or diverted to other equipment, or sorbent regenerated | 34 |
20080202332 | APPARATUS AND METHOD FOR AIR SAMPLING - An apparatus for sampling air in an aircraft cabin comprises: a sensor | 08-28-2008 |
20080210084 | Apparatus For Volatile Organic Compound Treatment And Method Of Volatile Organic Compound Treatment - It is intended to provide a volatile organic compound treatment apparatus having: an absorption treatment chamber in which absorption frames having absorbents for absorbing volatile organic compounds are aligned in a direction of a gas flow; an absorbent recovery treatment chamber that is provided with a discharge unit having a high voltage electrode, a ground electrode, and a dielectric; and a transfer mechanism for transferring the absorption frames present in an upstream of the gas flow to the absorbent recovery treatment chamber and transferring the absorption frames in the absorbent recovery treatment chamber to a downstream of the gas flow. The volatile organic compound treatment apparatus is capable of decomposing VOC without generating a large amount of harmful NOx and reduced in apparatus cost. | 09-04-2008 |
20080229924 | Process for Treating a Loaded Solvent Stream Having a Time-Varying Concentration of Contaminant - The invention provides a process for treating a loaded solvent stream having a time-varying contaminant concentration, the process comprising the steps of: (a) providing a plurality of hold-up tanks; (h) feeding the loaded solvent stream in dependence on its contaminant concentration to one or more of the hold-up tanks and; (c) allowing lowed solvent to flow from the plurality of hold-up tanks to obtain a smoothed loaded solvent stream having a reduced time-varying contaminant concentration. The invention further provides a treating unit comprising a circuit for circulating a solvent stream, which circuit includes a device for smoothing contaminant peak concentrations, said device comprising a plurality of hold-up tanks each hold-up tank having at least one inlet and an outlet equipped with an outlet valve, the device further comprising an inlet distributor allowing the control of solvent flow to one or more of the hold-up tanks. | 09-25-2008 |
20080264250 | Flue Gas Desulfurization Process Utilizing Hydrogen Peroxide - A flue gas desulfurization process in which a SO | 10-30-2008 |
20080282880 | Portable Oxygen Concentrator - A portable oxygen concentrator includes a pair of sieve beds, a compressor for delivering air to the sieve beds, a reservoir receiving oxygen-enriched gas from the sieve beds, and an air manifold attached to the first ends of the sieve beds. A set of valves operate under the control of a controller for selectively opening and closing the valves to alternately charge and purge the sieve beds to deliver oxygen-enriched gas into the reservoir. In addition, an exhaust passage communicates with the plurality of sieve beds to deliver a flow of nitrogen evacuated from the sieve beds such that the flow of the nitrogen is directed at or across the controller to cool the controller. | 11-20-2008 |
20090095153 | NATURAL GAS RECOVERY SYSTEM AND METHOD - The present invention is a method and system for recovering natural gas used to operate a diaphragm pump in a gas production unit (GPU) at or near a natural gas well. A system embodiment may include a back pressure valve installed on a natural gas line between an exhaust port of heat trace diaphragm pump and a vent to atmosphere, the back pressure valve configured for selectively blocking flow of natural gas to the vent. The system may further include a return line connected between the natural gas line and a burner system fuel line for redirecting the natural gas to a burner system. An embodiment of a method of recovering natural gas expelled from a heat trace diaphragm pump exhaust port may include preventing the natural gas from exhausting to atmosphere and redirecting the natural gas to a natural gas supply system. | 04-16-2009 |
20090120284 | REDUCING POLLUTANT DISCHARGE FROM GASOLINE STORAGE TANKS - An active adsorbent pollutant reducing system includes a canister containing activated carbon, a pump and a series of valves connected to the canister and the pump. The valves and pump of the system are controlled so that vapor/air in the ullage of a gasoline storage tank is pumped to the canister/adsorbent material when tank pressure reaches a first level with vapor being adsorbed and air being discharged to atmosphere. When a second tank pressure level, lower than the first tank pressure level, is achieved, the valves are controlled to reconfigure the pump and canister so that continued pump operation pulls a vacuum on the canister resulting in adsorbed gasoline vapor being purged from the adsorbent material and returned to the storage tank. Tank pressure, HC content in the vapor flow and canister weight can be used for control of the system. | 05-14-2009 |
20090260518 | CYCLICAL SWING ADSORPTION PROCESSES - The concentration of adsorbate in the feed gas to an on-stream bed of a cyclical swing adsorption process is monitored and the data processed to predict the time required to complete the on-stream mode of that bed and the purge flow rate and/or other regeneration mode operating condition of the concurrently off-stream bed is modified in response to changes in said predicted time whereby the regeneration mode of the off-steam bed is completed at the same time as the on-stream mode of the concurrent on-stream bed. | 10-22-2009 |
20100192769 | ACTIVATED CARBON HONEYCOMB CATALYST BEDS AND METHODS FOR THE USE THEREOF - Disclosed herein, without limitation, are activated carbon honeycomb catalyst beds and systems for removing mercury and other toxic metals from a process stream, i.e, from flue gas of a coal combustion system. The activated carbon honeycomb can for example remove greater than 90% mercury from flue gas with a simple design and without adding material to the flue gas. Also disclosed herein, and without limitation, are methods for manufacturing and using the disclosed honeycomb catalyst beds and systems. | 08-05-2010 |
20100294127 | OXYGEN CONCENTRATION SYSTEM AND METHOD - The present system is an adsorption system for separating air into a concentrated gas component, which has an air supply, a compressor for receiving and compressing the air supply, providing a compressed air supply, and molecular sieve material for separating the compressed air supply into a concentrated gas component. The adsorption system delivers at least 5 liters per minute (LPM) of concentrated gas component from the molecular sieve material in which the system has a specific total weight per LPM <9 lbs/LPM. Additionally, an output quantity of the concentrated gas is delivered by the adsorption system and a purging quantity of the concentrated gas is dispensed into a sieve chamber of the adsorption system undergoing a purge cycle. The purging quantity has a value equal to or less than the difference between the maximum quantity and the output quantity, and the purging quantity is controlled based on the output quantity. | 11-25-2010 |
20100319531 | CO2 RECOVERING APPARATUS AND METHOD | 12-23-2010 |
20100326272 | METHOD AND APPARATUS FOR GAS REMOVAL - Aspects of the invention include a method and apparatus for reversibly sorbing a target gas. In one embodiment, an apparatus for reversibly sorbing a target gas is disclosed. The apparatus includes an inlet, a multi-channel monolith coupled to the inlet, the multi-channel monolith including a plurality of channels, each one of the plurality of channels includes one or more walls, wherein at least one of the one or more walls of at least one of the plurality of channels is porous and wherein one or more of the plurality of channels contain a sorbent and an outlet coupled to the multi-channel monolith. | 12-30-2010 |
20110100209 | Recovery of NF3 from Adsorption Operation - During the conventional temperature swing adsorption (TSA) process, NF | 05-05-2011 |
20110100210 | DIAGNOSIS OF THE OPERABILITY OF FUEL VAPOUR INTERMEDIATE STORES - A method is provided for diagnosing the operability of fuel vapor intermediate stores ( | 05-05-2011 |
20110197760 | METHOD AND A DEVICE FOR REMOVING MERCURY FROM A PROCESS GAS - A method of removing mercury from a process gas by means of a sorbent and a filter ( | 08-18-2011 |
20120006193 | Adsorption-desorption apparatus and process - An apparatus and process for thermally-linked adsorption-desorption. The process involves (a) at least one pair of adjacent sorbent beds, referenced herein as first and second sorbent beds, each pair of adjacent beds being thermally-linked one to the other through a thermally conductive wall; wherein each sorbent bed comprises a heat conductive foam, such as a reticulated metallic foam or sponge, having a sorbent coated thereon; then (b) alternating a flowstream between the beds such that at least one bed operates in adsorption cycle to remove target compound(s) from the flowstream with generation of heat of adsorption, which is conductively transferred away from the first bed towards the second bed, while operating the second bed in desorption cycle to remove the adsorbed target compound(s). | 01-12-2012 |
20120024150 | Biogas Conditioning System and Method - The present invention provides a system and process for the automatic conditioning of biogas to remove a wide range of contaminants including, for example, moisture, hydrogen sulfide, mercaptans, and NMOCs all in a single step. The biogas is passed through one or more vessels containing at least three different types of physical adsorbents. Contaminants in the biogas are removed from the biogas via physical adsorption onto the surfaces of the various media. Multiple media types are used in each vessel as different contaminants adsorb more or less onto various adsorbent media. The final proportions and types of media used are based on each particular biogas range of contaminants. Multiple vessels are used such that one or more vessels are always on-line and conditioning biogas, while one or more vessels is always off-line and either being reactivated or in standby service mode. | 02-02-2012 |
20120103185 | Sour Gas and Acid Natural Gas Separation Membrane Process by Pre Removal of Dissolved Elemental Sulfur for Plugging Prevention - Methods for removing sulfur from a gas stream prior to sending the gas stream to a gas separation membrane system are provided. Two schemes are available. When the sulfur content is high or flow is relatively high, a scheme including two columns where one tower is regenerated if the sulfur concentration exceeds a preset value can be used. When the sulfur content is low or flow is relatively low, a scheme including one column and an absorption bed. | 05-03-2012 |
20120103186 | Method For Adjusting The Purity Of Oxygen Generated By An Adsorption Unit By Controlling The Flow Rate - 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 VPS05-03-2012 | |
20120234165 | METHODS FOR CONTROLLING IMPURITY BUILDUP ON ADSORBENT FOR PRESSURE SWING ADSORPTION PROCESSES - 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). | 09-20-2012 |
20130074689 | DEVICE FOR THE ADSORPTION TREATMENT OF A FLUID OR FLUID STREAM - A device for adsorption treatment of a fluid or fluid stream, comprising a container for receiving adsorber material, wherein the container has a fluid inlet opening and a fluid outlet opening, and two fluid connection devices, wherein one of the fluid connection devices is provided at the fluid inlet opening and the other one of the fluid connection devices is provided at the fluid outlet opening, wherein the fluid connection devices are locked in a fluid-tight manner and are designed in such a way that they can each be connected to a fluid line connector and unlocked and, if they are connected to the respective fluid line connector they can be unlocked or are unlocked. | 03-28-2013 |
20130205998 | Carbon dioxide absorption system - Carbon dioxide is removed from a source gas stream by admission to a vessel containing a quantity of a material preferentially absorbing carbon dioxide. The carbon dioxide content of an escaping gas stream is monitored. When the carbon dioxide content of the escaping gas stream indicates that absorbent is saturated with carbon dioxide, an inlet valve is closed, and a vacuum applied, causing the carbon dioxide to be desorbed for collection. | 08-15-2013 |
20130205999 | ON-SITE MEDICAL GAS PRODUCTION PLANT AND ASSOCIATED OPERATING METHOD - The invention relates to an on-site medical gas production plant ( | 08-15-2013 |
20130298761 | LIQUID, SLURRY AND FLOWABLE POWDER ADSORPTION/ABSORPTION METHOD AND SYSTEM UTILIZING WASTE HEAT FOR ON-BOARD RECOVERY AND STORAGE OF CO2 FROM MOTOR VEHICLE INTERNAL COMBUSTION ENGINE EXHAUST GASES - A method and system are described for on-board treatment of an exhaust stream containing CO | 11-14-2013 |
20130340611 | METHOD AND APPARATUS FOR DECOMPOSING NITROSAMINES FORMED IN REMOVING CO2 FROM FLUE GASES USING AN AQUEOUS AMINE SOLUTION - The invention relates to a method and apparatus for reducing nitrosamines, formed in removal of CO | 12-26-2013 |
20140053724 | METHOD FOR SEPARATING OFF CARBON DIOXIDE IN BIOGAS PLANTS - A method for separating off carbon dioxide in biogas plants includes an adsorption phase and a regeneration phase. Crude biogas that is treated in the adsorption phase is passed at ambient pressure through an adsorber suitable for adsorption of carbon dioxide, and in the regeneration phase the adsorber is regenerated with a purge gas at the temperature between 20 and 100° C., and also ambient pressure. The crude biogas is treated upstream of the carbon dioxide separation method, and is desulphurized and dried and minor components can be removed. For avoiding impurities in the biogas, at the start of the adsorption phase a purge process is carried out on the adsorber with treated crude biogas, wherein the purge process is controlled with respect to time via a number of valves and a sensor. | 02-27-2014 |
20140260964 | SYSTEM AND METHOD OF REGENERATING DESULFURIZATION BEDS IN A FUEL CELL SYSTEM - A desulfurization system is disclosed that facilitates in situ or ex situ regeneration of hydrocarbon desulfurization beds. The desulfurization system can use a bed characterization limit, a predetermined sulfur threshold or other metric to determine when the hydrocarbon desulfurization bed should be regenerated. The desulfurization system can include heat and air intakes and an air/sulfur purge outlet to allow for the removal of sulfur from the hydrocarbon desulfurization bed. Alternatively, the regeneration of hydrocarbon desulfurization bed may be performed in situ by a service technician by using a prebuilt appliance that is connected to the inlet and outlets of the desulfurization appliance. The prebuilt appliance heats and purges hydrocarbon desulfurization bed, in substantially the same manner as described just above, and captures the sulfur outside of the desulfurization system. | 09-18-2014 |
20140311339 | AIR PURIFICATION SYSTEM - An air purification system including a Particle Phase Pollutant (PPP) treatment section ( | 10-23-2014 |
20150090115 | ON-SITE MEDICAL GAS PRODUCTION PLANT AND ASSOCIATED OPERATING METHOD - The invention relates to an on-site medical gas production plant ( | 04-02-2015 |
20150298043 | METHOD AND SYSTEM FOR REDUCTION OF UNWANTED GASES IN INDOOR AIR - An air treatment system for at least partially removing at least one gaseous contaminant contained in indoor air of a room structured for human occupants. The system may comprise an air treatment assembly having an indoor air inlet configured to receive indoor airflow directly from a room, a regenerable adsorbent material configured to adsorb at least one gaseous contaminant contained in the indoor airflow, at least one airflow element for directing the indoor airflow to flow through the air treatment assembly, an indoor air outlet for expelling the indoor air, from the air treatment assembly back into the room, a purge air inlet configured to receive and direct purge air over and/or through the adsorbent material for removal of at least a portion of the at least one gaseous contaminant, and a purge air outlet for expelling the purge air out of the air treatment assembly. | 10-22-2015 |
20150343370 | VARIABLE CAPACITY MULTIPLE-LEG PACKED SEPARATION COLUMN - An industrial packed column for gas stream processing to remove a component by liquid absorbent contact includes:
| 12-03-2015 |
20160074269 | ON-SITE MEDICAL GAS PRODUCTION PLANT AND ASSOCIATED OPERATING METHOD - The invention relates to an on-site medical gas production plant ( | 03-17-2016 |
20160114283 | GAS ABSORBING AND REGENERATING APPARATUS AND METHOD FOR OPERATING SAME | 04-28-2016 |
20160201983 | ON-BOARD AIRCRAFT OXYGEN ENRICHED AIR AND NITROGEN ENRICHED AIR GENERATION SYSTEM AND METHOD | 07-14-2016 |