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| Number | Title | Issue Date |
| 7517391 | Method of bulk transport and storage of gas in a liquid medium An integrated ship mounted system for loading a gas stream, separating heavier hydrocarbons, compressing the gas, cooling the gas, mixing the gas with a desiccant, blending it with a liquid carrier or solvent, and then cooling the mix to processing, storage and tran... | 04/14/2009 |
| 7431900 | Hydrogen peroxide vapor system with replaceable desiccant cartridge A hydrogen peroxide vapor generation unit (10) receives hydrogen peroxide and water solution at an interface (20) and interconnects with an air dryer (14) by way of nipples (72, 92). In one embodiment, the dryer includes a clamping assemb... | 10/07/2008 |
| 7377958 | Apparatus and method for removing airborne moisture An apparatus is provided for removing airborne moisture from a designated area. In one embodiment, the apparatus includes a bucket, a liquid absorption medium (such as ground corn cobs) placed in the bottom of the bucket to form a media bed, a tray placed over the a... | 05/27/2008 |
| RE39944 | Desiccant regenerator system A natural gas dehydrator wherein a portion of the wet glycol from the absorber is pumped under pressure as circulating wet glycol which is used as a coolant for effluents removed from a reboiler and a power source for an educator to form a vacuum in a first chamber ... | 12/25/2007 |
| 7306654 | Method and apparatus for recovering water from atmospheric air A method of separating water from air is provided comprising the steps of (a) contacting air having water vapor with an hygroscopic liquid mixture to produce a water rich hygroscopic liquid mixture, (b) heating at least a portion of the water rich hygroscopic liquid... | 12/11/2007 |
| 7306650 | Using liquid desiccant as a regenerable filter for capturing and deactivating contaminants A method, and systems for implementing such method, for purifying and conditioning air of weaponized contaminants. The method includes wetting a filter packing media with a salt-based liquid desiccant, such as water with a high concentration of lithium chloride. Air... | 12/11/2007 |
| 7204867 | High pressure gas processing configurations and methods Contemplated plants comprise an acid gas removal unit that receives a compressed gas from an injection gas compressor, wherein acid gas is removed from the compressed gas in the acid gas removal unit at a pressure approximately above pipeline pressure. ... | 04/17/2007 |
| 7201225 | Conserving components of fluids A cavitation device is used to heat, concentrate and recycle or otherwise reuse dilute and other oil well fluids, brines and muds, and solution mining fluids, all of which commonly contain ingredients worthy of conservation. The cavitation device is powered by a Die... | 04/10/2007 |
| 7093655 | Method for the recovery of hydrocarbons from hydrates A method for recovering hydrocarbon trapped in a hydrate formation, comprising the steps of (a) contacting the hydrate formation with an aqueous solution comprising from 10% to 75% by weight of a salt such as potassium formate or acetate salt to liberate hydrocarbon... | 08/22/2006 |
| 7074258 | Process for dehydrating gas A process for the removal of water from gas which comprises an absorption step of bringing a gas saturated with water vapor into gas-liquid contact with a water-lean absorbing liquid comprising a water absorbing liquid having a cloud point temperature above the free... | 07/11/2006 |
| 6984257 | Natural gas dehydrator and system An improved apparatus and method for use with a natural gas dehydrator. The apparatus and method of the invention provide for recirculation of gaseous or combustible materials so that they are not released into the atmosphere and to provide fuel for the process. Lik... | 01/10/2006 |
| 6974542 | Method and apparatus for removing foaming contaminants from hydrocarbon processing solvents A column of solvent containing foaming contaminants is provided. Gas is educted into the solvent in the column so as to generate foam in the column. The gas is educted into the column independently of the input flow of solvent into the solvent using a pumparound arr... | 12/13/2005 |
| 6964729 | Oxidizing undesired compounds resident within liquid absorbent compounds, reducing atmospheric pollution, regenerating a liquid absorbent and conserving fuel usage associated with reboiler utilization An improved method and apparatus for oxidizing undesired compounds residing within a liquid glycol based absorbent wherein the compounds are heated within a reboiler chamber to their boiling point to effectuate production of vaporized effluents. The absorbent's vapo... | 11/15/2005 |
| 6896718 | Gas dehydration with cavitation regeneration of potassium formate dehydrating solution Moisture is removed from gas by contacting the gas with a solution of potassium formate to remove moisture from the gas, regenerating the potassium formate solution by removing water from it, and returning the potassium formate solution to contact gas to dehydrate i... | 05/24/2005 |
| 6793714 | Process for dehydrating and stripping a wet natural gas In a process for dehydration/fractionation of a wet natural gas containing heavy constituents and light constituents, In the presence of methanol, aqueous liquid phases are combined and the resultant combined aqueous liquid phase contacted with the first part of the... | 09/21/2004 |
| 6789288 | Natural gas dehydration process and apparatus A process and corresponding apparatus for dehydrating gas, especially natural gas. The process includes an absorption step and a membrane pervaporation step to regenerate the liquid sorbent. ... | 09/14/2004 |
| 6767388 | Process for dehydrating and fractionating a low-pressure natural gas Process for dehydrating/fractionating a low-pressure wet natural gas containing “heavy” constituents and “light” constituents includes a stage a) in which at least a fraction of the wet gas at temperature T0 is contacted with an aqueous liquid pha... | 07/27/2004 |
| 6699308 | Method and apparatus for the drying of natural gas A system for removing water from natural gas which comprises: bringing the natural gas into contact with a liquid including an absorbent for the water; subjecting the natural gas and liquid to turbulent mixing conditions thereby causing the water to be ab... | 03/02/2004 |
| 6666906 | Gas dehydration using membrane and potassium formate solution Potassium or other alkali metal formate solution is used to absorb moisture from gas through a membrane. The membrane may be supported on permeable tubes, and the potassium or other alkali metal formate may be regenerated for reuse, preferably by a cavita... | 12/23/2003 |
| 6602423 | Method and apparatus for removing foaming contaminants from hydrocarbon processing solvents A column of solvent containing foaming contaminants is provided. Gas is educted into the solvent in the column so as to generate foam in the column. The gas is educted into the column independently of the input flow of solvent into the solvent using a pum... | 08/05/2003 |
| 6579343 | Purification of gas with liquid ionic compounds The present invention provides a method for purifying a gas by contacting the gas with a liquid ionic compound. Natural gas may be purified, removing water and carbon dioxide, by contacting the natural gas with a liquid ionic compound.... | 06/17/2003 |
| 6551379 | Apparatus for use with a natural gas dehydrator Apparatus for use with a natural gas dehydrator wherein a portion of the wet glycol in an emissions separator is pumped under pressure as circulating wet glycol which may be used as a coolant for effluent removed from a reboiler and/or a power source for ... | 04/22/2003 |
| 6514321 | Dehumidification using desiccants and multiple effect evaporators 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 des... | 02/04/2003 |
| 6506233 | Desiccant tablets for gas drying Desiccant tablets including solid potassium formate are used to dry gas, especially in natural gas transmission lines. Preferred tablets comprise 1-4% potassium formate (most preferably 2-3%), up to 1% of a surfactant as a lubricant, and the balance desic... | 01/14/2003 |
| 6461413 | Method for dehydrating a wet gas using a liquid dessicant, with advanced regeneration of said dessicant In a process using a hydrophilic liquid desiccant, for dehydrating a gas containing water with regeneration of the steps of: (a) absorbing water by contact between the moist gas and regenerated liquid desiccant from step c), producing a dry gaseous efflue... | 10/08/2002 |
| 6425942 | Method and device for drying a gas The gas which is to be dried is fed into an absorber (1) where it is brought into contact with a glycol in countercurrent. The glycol absorbs the moisture from the gas and impurities. The glycol laden with water and impurities is removed from the absorber... | 07/30/2002 |
| 6368384 | Desiccant tablets for gas drying Desiccant tablets including solid potassium formate are used to dry gas, especially in natural gas transmission lines. The most preferred tablets comprise 5-15% potassium formate, up to 1% of a surfactant as a lubricant, and the balance desiccant salts, p... | 04/09/2002 |
| 6364933 | Apparatus for use with a natural gas dehydrator Apparatus for use with a natural gas dehydrator wherein a portion of the wet glycol in an emissions separator is pumped under pressure as circulating wet glycol which may be used as a coolant for effluent removed from a reboiler and/or a power source for ... | 04/02/2002 |
| 6355092 | Apparatus and method for performing membrane gas/liquid absorption at elevated pressure The invention relates to an apparatus for performing membrane gas/liquid absorption at elevated pressure, comprising a pressure vessel in which a membrane unit is provided for separate feed-through of the gas phase and the liquid phase, in such a way that... | 03/12/2002 |
| 6251165 | Process for adsorbing and desorbing a solvent contained in a natural gas from a dehydration process Process for recovering a solvent from a gas coming from a treating process using the solvent, the gas having a low temperature Ta and a high temperature Td, the difference Td-Ta being sufficient to carry out an adsorption step and a desorption step. The p... | 06/26/2001 |
| 6251166 | Glycol regeneration system having a pressurized reboiler to remove BTEX compounds A glycol regenerating system wherein a pressurized reboiler is introduced to a typical prior art system, the pressurized reboiler being in the glycol stream upstream from the conventional atmospheric reboiler. The pressurized reboiler heats the rich glyco... | 06/26/2001 |
| 6238461 | Natural gas dehydrator A natural gas dehydrator wherein a portion of the wet glycol from the absorber is pumped under pressure as circulating wet glycol which is used as a coolant for effluents removed from a reboiler and a power source for an educator to form a vacuum in a fir... | 05/29/2001 |
| 6183540 | Method and apparatus for removing aromatic hydrocarbons from a gas stream prior to an amine-based gas sweetening process A method is provided for the extraction of aromatic hydrocarbons, including benzene, toluene, ethylbenzene, and xylene, collectively known as "BTEX," in a continuous process utilizing a glycol contactor to cause absorption of the BTEX upstream of an amine... | 02/06/2001 |
| 6183541 | Baffled horizontal dehydrator A natural gas dehydrator and process for dehydrating natural gas employ a longitudinal horizontal pressure vessel containing a threshold level of liquid desiccant. A plurality of spaced-apart baffles divides the vessel into a series of pneumatically discr... | 02/06/2001 |
| 6177597 | Glycol solvents and process A glycol solvent selected from a glycol and a tetramethylammonium carboxylate having improved dehydrating capacity and a reduced aborbency for aliphatic and aromatic hydrocarbons.... | 01/23/2001 |
| 6156102 | Method and apparatus for recovering water from air 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 t... | 12/05/2000 |
| 6103944 | Water separation process Water present in a hot gaseous product stream from a reactor system A.B (FIG. 1) containing hydrogen fluoride is separated from the stream in order to eliminate a potentially corrosive combination of water and HF. The water is removed by contacting the ga... | 08/15/2000 |
| 6063163 | Co-current and counter-current gas dehydration system According to the present invention, an inexpensive co-current and counter-current gas dehydration system, contactor apparatus, and operating method is provided which does not result in a need to clean equipment on a frequent basis. More specifically, ther... | 05/16/2000 |
| 6010674 | Method for controlling contaminants during natural gas dehydration A system for controlling organic contaminants released from a regenerator during the process of liquid dehydration of natural gas where contaminants are vaporized into a gaseous mixture. The system includes conducting the vaporized mixture from the regene... | 01/04/2000 |
| 6004380 | Gas drying process using glycol, including purification of discharged gas A process for dehydrating a natural gas or refinery gas containing water and BTEX using a liquid desiccant (glycol) and including regeneration provides the following steps: (a) absorption of the water and the BTEX by contacting the gas with the liquid des... | 12/21/1999 |
