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| Number | Title | Issue Date |
| 8080087 | Salt drying process A method of drying liquid and gaseous hydrocarbons by contacting a feed stream of the hydrocarbon with an aqueous solution of a salt drying agent prior to passing the stream through a salt dryer to remove part of the water in the stream. The aqueous solution of the ... | 12/20/2011 |
| 7666251 | Carbon dioxide purification method Method of purifying a feed stream containing carbon dioxide wherein the feed stream after having been compressed and dried is partly cooled and then used to reboil a stripping column. Thereafter, the feed stream is further cooled and expanded to a lower operational ... | 02/23/2010 |
| 7263240 | Method, system, and software for improving signal quality using pyramidal decomposition A method, system, and software are disclosed for improving the quality of a signal. A base signal is recursively decomposed for a desired number of pyramid levels. The decomposed signal from the lowest level is modified to generate a preprocessed signal. The preproc... | 08/28/2007 |
| 7020344 | Match blur system and method A method for blurring in signal processing, for example, in digital film processing, is performed with digital artifacts. The digital artifacts are derived, such as by scanning, and include a noisy artifact and a less noisy artifact. The artifacts are subdivided int... | 03/28/2006 |
| 7016080 | Method and system for improving scanned image detail Methods are provided for generating a dynamic image mask for improving image detail in a digital image. An electronic representation of an image is scanned. A dynamic image mask is generated from the electronic representation of the image. The dynamic image mask has... | 03/21/2006 |
| 6965692 | Method and apparatus for improving the quality of reconstructed information Image processing apparatus and methods according to the present invention are described in which data for each color channel are separately processed, on a pixel by pixel basis, such that the data associated with the primary color channel is filtered less than the c... | 11/15/2005 |
| 6943920 | Method, system, and software for signal processing using pyramidal decomposition A method, system, and software are disclosed for improving the quality of a signal. A base signal is recursively decomposed and modified for a desired number of pyramid levels. At each level, the decomposed signal from the previous level is modified to improve one o... | 09/13/2005 |
| 6929680 | CO2 separator method and apparatus A process for concentrating and recovering methane and carbon dioxide from landfill gas includes absorption of commonly occurring pollutants using a carbon dioxide absorbent which itself may be in situ recoverable constituent. Separated methane is concentrated into ... | 08/16/2005 |
| 6916125 | Method for film inspection and development A method of preparing a roll of film for development. The method involves inspecting the film for defects and imperfections as the film is unwound from a magazine. A method of preparing a roll of film for development and developing the film is also disclosed. The de... | 07/12/2005 |
| 6915021 | Method and system for selective enhancement of image data A method and apparatus for selectively applying image enhancement processing to parts of an image. In one embodiment, spatial processing transformations, such as sharpening for example, are reduced or bypassed for pixels having color code values within a range known... | 07/05/2005 |
| 6913404 | Film processing solution cartridge and method for developing and digitizing film A digital film processing system and film processing solution cartridge are disclosed. The cartridge comprises a housing and a chamber for storing a film processing fluid. The processing solution may be contained within a flexible bladder within the chamber. The car... | 07/05/2005 |
| 6910816 | Digital film processing method A method of developing a latent image on a photographic element (such as imagewise exposed photographic film) by absorbing a dye precursor into the film, applying a developer solution to the film to develop the latent image and form a dye in the film, scanning the f... | 06/28/2005 |
| 6849105 | Method and installation for treating effluent gas containing hydrocarbons Prior to passing through pumping apparatus effluent gas containing hydrocarbons is subjected to washing by being sprayed with aromatic type oil in oil-recirculating washing apparatus. Polycyclic aromatic hydrocarbons contained in the effluent gas are trapped by bein... | 02/01/2005 |
| 6623537 | Removal of soot in gasification system The raw syngas generated in a partial oxidation gasifier also includes carbon soot which is removed and recovered from the syngas by scrubbing with water. The scrubbing water contains one or more high temperature surfactants which allow greater soot conce... | 09/23/2003 |
| 6551380 | Recovery of CO2 and H2 from PSA offgas in an H2 plant A gas separation apparatus and process has a first pressure swing adsorption (PSA) unit (110) receiving feed gas (112), which comprises a first and a second component. First PSA unit (110) produces first product gas (114) pre-dominantly containing the fir... | 04/22/2003 |
| 6358301 | Process for preparing an adsorbent which is loaded with an oil The invention relates to a process for preparing a highly loaded adsorbent by extracting an oil from an oil crude product using supercritical fluid extraction to obtain a loaded supercritical fluid (SCF). The loaded SCF is expanded, followed by heating to... | 03/19/2002 |
| 6019816 | Systems and methods for removing residue from process gases exhausted from microelectronic device fabrication processes Process gases from microelectronic device fabrication processes are pumped through a filter unit including a plurality of absorbers for absorbing water entrained within the process gases. Residues deposited within the filtering unit are removed by sprayin... | 02/01/2000 |
| 5964921 | Method and device for removing harmful substances, in particular, dioxin A method for removing harmful substances, in particular dioxin, from flue gas generated in for example a waste incinerator, using an adsorption agent, characterized in that after said flue gas has been washed with a washing medium, the adsorption agent is... | 10/12/1999 |
| 5788743 | Selective separation and recovery of chlorine from gas mixtures A process for separating chlorine of high purity from a chlorine-containing feed gas by absorption of the chlorine using an inert absorbent and downstream desorption of the chlorine from the absorbent/chlorine mixture drawn off from the absorption stage b... | 08/04/1998 |
| 5683492 | Process for the recovery of carbon monoxide from a purge gas containing at least carbon monoxide, nitrogen and hydrogen A process for the recovery of carbon monoxide from a purge gas from acetic acid synthetic containing at least carbon monoxide, nitrogen and hydrogen, wherein the purge gas (6) containing at least carbon monoxide, nitrogen and hydrogen is separated into a ... | 11/04/1997 |
| 5584911 | Vapor recovery system with cyclonic separator A system is provided for recovering volatile-liquid vapor from an air-volatile liquid vapor mixture. The system includes a reaction vessel having a bed of adsorbent for adsorbing volatile liquid vapor and producing relatively volatile liquid vapor-free ai... | 12/17/1996 |
| 5515686 | Absorber fluid circuit for vapor recovery system An absorber fluid circuit is provided for a volatile liquid vapor recovery system. The vapor recovery system includes at least one adsorbent bed for capturing volatile liquid vapor, a vacuum pump for regenerating the adsorbent bed, a heat exchanger for co... | 05/14/1996 |
| 5460636 | Impurity scavenging system An impurity scavenging system which scavenges impurities of off-gases discharged from a clean room of a production line for semiconductors. The impurity scavenging system has a gas introduction line through which gas to be processed (hereinafter referred ... | 10/24/1995 |
| 5269833 | Process for cleaning a stream of crude gas or waste gas charged with hydrocarbon vapors resulting in recovery of the hydrocarbons The invention relates to a process for cleaning a stream of crude gas and/or waste gas charged with hydrocarbon vapors resulting in recovery of the hydrocarbons. The process consists of adsorption, desorption, and condensation and/or absorption, and the a... | 12/14/1993 |
| 5224350 | Process for recovering helium from a gas stream A subquality nitrogen-rich natural gas stream containing more than 0.1 mol % helium is countercurrently extracted with a lean physical solvent to produce a rich solvent bottoms stream which is flashed twice to produce a methane-rich gas product and a nitr... | 07/06/1993 |
| 4715868 | Vapor recovery system A process for the recovery of hydrocarbon vapors from an air-hydrocarbon mixture wherein the inlet air-hydrocarbon mixture is passed to an absorber vessel in which is fed a vacuum flashed liquid hydrocarbon absorbent to produce an absorber overhead gas st... | 12/29/1987 |
| 4681603 | Feed gas saturation system for steam reforming plants A process for the recovery of low-level heat in steam reforming plants by saturating a hydrocarbon gas feed stock with process condensate in a system comprising: (a) injection of process condensate through multiple nozzles into a tubular coil containing m... | 07/21/1987 |
| 4070165 | Pretreatment of raw natural gas prior to liquefaction High pressure raw natural gas is prepared for liquefaction by first removing water and acid gases and then expanding the gas from the wellhead pressure to remove shaft horsepower. The expanded gas is scrubbed with a C4 rich liquid previously se... | 01/24/1978 |
| 4054429 | Method and apparatus for solvent recovery A method and apparatus for recovering a contaminant solvent from a gas such as air or the like. Contaminated air or gas to be treated is initially directed through a first absorber containing an oil which absorbs the solvent to cleanse the gas. The air or... | 10/18/1977 |
