| Patent application number | Description | Published |
|---|
| 20110315010 | INTEGRATED MEMBRANE AND ADSORPTION SYSTEM FOR CARBON DIOXIDE REMOVAL FROM NATURAL GAS - The present invention relates to an integrated membrane/adsorbent process and system for removal of carbon dioxide from natural gas on a ship that houses natural gas purification equipment. Additional membrane units or adsorbent beds are used to reduce the amount of product gas that is lost in gas streams that are used to regenerate the adsorbent beds. These systems produce a product stream that meets the specifications of less than 50 parts per million carbon dioxide in natural gas for liquefaction. | 12-29-2011 |
| 20120073437 | VESSEL AND PROCESS PERTAINING TO AN IMPERMEABLE IMPINGEMENT PLATE - One exemplary embodiment can be a vessel. The vessel can include a body, an inlet, and an impermeable impingement plate. The body may include a substantially cylindrical structure orientated substantially horizontally, and first and second heads coupled at opposing ends of the substantially cylindrical structure. Generally, the body forms an interior space, and a lower portion of the body forms a trough having a length and a width. The inlet can communicate with the interior space of the vessel. Typically, the impermeable impingement plate has an impingement surface. The impermeable impingement plate may have a first side and a second side extending substantially the length of the trough. The first and second sides may be substantially parallel and spaced apart across at least a portion of the width of the trough. | 03-29-2012 |
| 20130291723 | PROCESSES AND APPARATUSES FOR PREPARING LIQUIFIED NATURAL GAS - Processes and apparatuses are provided for preparing liquified natural gas from a natural gas feed that comprises C5 to C7 hydrocarbons and C8 or greater hydrocarbons. An exemplary process includes effecting the preferential adsorption of the C8 or greater hydrocarbons from the natural gas feed over adsorption of hydrocarbons having less than 8 carbon atoms to provide a C8-depleted natural gas stream. The process continues with effecting the preferential adsorption of the C5 to C7 hydrocarbons from the C8-depleted natural gas stream over adsorption of hydrocarbons having less than 5 carbon atoms to form a C5 to C8-depleted natural gas stream. The C5 to C7 hydrocarbons are preferentially adsorbed with higher selectivity and capacity than adsorption of the C5 to C7 hydrocarbons during preferentially adsorbing the C8 or greater hydrocarbons. The C5 to C8-depleted natural gas stream is then liquified. | 11-07-2013 |
| 20140326136 | TEMPERATURE SWING ADSORPTION SYSTEMS AND METHODS FOR PURIFYING FLUIDS USING THE SAME - A temperature swing adsorption system includes a first adsorption bed configured to receive a feed stream and adsorb a contaminant from the feed stream to produce a product stream, a second adsorption bed configured to receive a portion of the product stream and a cooling stream to reduce a temperature of the second adsorption bed, a third adsorption bed configured to receive the heated product stream to increase a temperature of the third adsorption bed; a separation system to separate the cooled product stream into a first component stream and a second component stream, and a fourth adsorption bed configured to receive the first component stream and to enrich an adsorptive concentration of the first component stream. The enriched first component stream is directed to the second adsorption bed to provide the cooling stream. | 11-06-2014 |
| 20140357926 | REMOVAL OF SULFUR COMPOUNDS FROM NATURAL GAS STREAMS - A process for treatment of a natural gas stream, or other methane containing stream that passes through a guard bed for removal of mercury and hydrolysis of COS, followed by treatment with an absorbent unit containing an amine solvent for removal of carbon dioxide and hydrogen sulfide. The gas is then dried by a molecular sieve bed. The regeneration gas for the molecular sieve adsorbent bed is chilled to remove liquid hydrocarbons and sulfur compounds. The process is accomplished without the use of an absorbent unit to remove the sulfur compounds. | 12-04-2014 |
| 20150038759 | REMOVAL OF SULFUR COMPOUNDS IN AN ACID GAS STREAM GENERATED FROM SOLVENT-BASED GAS TREATING PROCESS - The invention involves a process for treating a natural gas stream comprising sending the natural gas stream first to an adsorbent unit for removal of mercury. Then the gas stream is sent to an absorbent unit containing a chemical solvent and a physical solvent for removal of carbon dioxide, hydrogen sulfide, carbonyl sulfide and organic sulfur compounds to produce a partially purified natural gas stream. This stream is dehydrated and becomes the product stream. The partially purified natural gas stream to a dehydration unit to remove water to produce a natural gas product stream. The impurities absorbed by the absorption unit are removed and a liquid stream is separated that contains the sulfur impurities. This liquid stream may be purified and stabilized before being shipped for further treatment. | 02-05-2015 |
| 20150105599 | METHOD FOR PROVIDING OXYGEN FREE REGENERATION GAS FOR NATURAL GAS DRYERS - Methods of removing free oxygen from a hydrocarbon stream are described. A hydrocarbon stream containing free oxygen is contacted with an adsorbent comprising a metal in a reduced state. The free oxygen in the hydrocarbon stream reacts with the metal in the reduced state to form oxidized metal and a reduced oxygen hydrocarbon stream. Syngas is made from a portion of the reduced oxygen hydrocarbon stream. A regeneration gas stream comprising a mixture of the syngas and another portion of the reduced oxygen hydrocarbon stream is contacted with the oxidized metal to reduce the oxidized metal to form the metal in the reduced state. | 04-16-2015 |
| 20160032206 | PROCESS FOR REMOVING SULFUR COMPOUNDS FROM NATURAL GAS STREAMS - A process for the removal of sulfur compounds from a feed stream. A first separation zone removes sulfur compounds and produces a partially cleaned stream. A first adsorption zone adsorbs the remaining organic sulfur compounds on a regenerable adsorbent a produces a treated gas stream. A portion of the treated gas stream may regenerate the adsorbent in the first adsorption zone by removing organic sulfur compounds. The organic sulfur compound rich stream can be passed to a non-regenerable adsorption zone. The non-regenerable adsorption zone will separate out the organic sulfur compounds and provide a re-treated gas stream which may be recycled to a portion of the process. The non-regenerable adsorption zone may include regenerable adsorbent, but the zone is not operated to regenerate the adsorbent while it is in the non-regenerable adsorption zone. | 02-04-2016 |
