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Natural Gas

Natural Gas patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

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Cryogenic Treatment Of Gas Or Gas Mixture > Separation Of Gas Mixture > Natural Gas



Method and apparatus for removing nitrogen from a cryogenic hydrocarbon composition
11/27/14 - 20140345319 - Nitrogen is removed from a cryogenic hydrocarbon composition. A least a first portion of the cryogenic hydrocarbon composition is fed to a nitrogen stripper column. The nitrogen stripper column operates at a stripping pressure. A stripping vapour is passed into the nitrogen stripper column, comprising at least a stripping portion...

Method for recovering hydrocarbon compounds and a hydrocarbon recovery apparatus from a gaseous by-product
09/11/14 - 20140250946 - There is provided a method for recovering hydrocarbon compounds from a gaseous by-products generated in the Fisher-Tropsch synthesis reaction, the method comprising a pressurizing step in which the gaseous by-products are pressurized, a cooling step in which the pressurized gaseous by-products are pressurized to liquefy hydrocarbon compounds in the gaseous...

Natural gas liquids recovery plant
06/26/14 - 20140174122 - A compact transportable apparatus for flexibly recovering natural gas liquids from a natural gas stream feedstock includes a replaceable segment on one or more natural gas liquids transfer lines that is removable in the field without cutting the line for replacement with different replaceable part, for example, a J-T valve...

Cryogenic separation of synthesis gas
04/03/14 - 20140090416 - A process and apparatus for separating a feed containing hydrogen, carbon monoxide, methane, and optionally nitrogen to form a product gas having a desired H2:CO molar ratio and optionally a hydrogen product gas and a carbon monoxide product gas. The feed is partially condensed to form a hydrogen-enriched vapor fraction...

Process for optimizing removal of condensable components from a fluid
03/20/14 - 20140075985 - A method for removing condensable components from a fluid containing condensable components. The method involves optimizing the temperature of an initial feed stream including the condensable components through heat exchange and cooling to condense liquids there from. The liquids are removed to form a gas stream which is then compressed...

Cryogenic co2 separation using a refrigeration system
01/30/14 - 20140026613 - A refrigeration system for condensation of carbon dioxide (CO2) in a flue gas stream, the system includes a refrigeration circuit, a flue gas treatment system that includes a flue gas compressor, a flue gas adsorption drier, and a refrigeration system for condensation of CO2; and a method for condensation of...

Ngl recovery without cryogenic conditions, membranes, and carbon dioxide recovery solvents
12/19/13 - 20130333417 - A method for recovering natural gas liquids without using cryogenic conditions, membranes, and carbon dioxide recovery solvents is provided. In one embodiment, a carbon dioxide recycle stream that comprises carbon dioxide and natural gas liquids is received. The carbon dioxide recycle stream is separated into a purified carbon dioxide recycle...

Heavy hydrocarbon processing in ngl recovery system
11/21/13 - 20130305777 - A method for processing heavy hydrocarbons in an NGL recovery system is provided. In one embodiment, a feed stream is separated into a carbon dioxide recycle stream and a heavy hydrocarbon stream. The heavy hydrocarbon stream comprises carbon dioxide and natural gas liquids, and the heavy hydrocarbon stream comprises heavy...

Sour ngl stream recovery
11/14/13 - 20130298601 - A method for recovering a sour natural gas liquids stream is provided. In one embodiment, a carbon dioxide recycle stream that comprises carbon dioxide, natural gas liquids, and acid gas is received. The carbon dioxide recycle stream is separated into a purified carbon dioxide recycle stream and a natural gas...

System and method for separating components in a gas stream
09/19/13 - 20130239608 - An incoming compressed gas, such as natural gas, is pre-cooled and the gas separated from any included liquid. The pre-cooled and separated gas is expanded using an expander to rapidly reduce pressure and corresponding temperature, as well as remove any components solidified by the temperature drop. An output stream from...

Hydrocarbon mixture processing system and method using vapor recovery
08/22/13 - 20130213085 - Systems and methods for processing a hydrocarbon mixture wherein heat is generated from compression of recovered natural gas vapors and used to provide a heating medium for a heat exchanger....

System and method of capturing, processing and utilizing stranded natural gas
07/25/13 - 20130186132 - A system and method for utilizing stranded natural gas produced by one wellsite or facility site at a second wellsite or facility site as natural gas in a fuel supply system to reduce the dependency of diesel fuel in operating equipment at the second wellsite or facility site. The system...

Apparatus and process for working up a hydrogen- and methane-comprising stream
07/11/13 - 20130174604 - The invention further relates to a process for working up a stream of material....

Ethylene expansion for low temperature refrigeration in polyethylene vent recovery
05/23/13 - 20130125581 - Provided are processes and systems for recovering hydrocarbons in a vent stream from a polymerization process. The methods and systems may include the recovery of an olefin monomer from a polymerization vent gas using ethylene refrigeration to condense and recover the olefin monomers from the vent gas. In some embodiments,...

Process for treating a natural gas containing carbon dioxide
02/14/13 - 20130036765 - The disclosure includes a process for treating a natural gas containing carbon dioxide wherein the natural gas is separated by a cryogenic process in order to provide, on the one hand, a stream of liquid carbon dioxide, containing hydrocarbons, and, on the other hand, purified natural gas; at least one...

Method for production of a compressed natural gas equivalent from landfill gas and other biogases
01/24/13 - 20130019633 - Biogas is converted to a vehicle fuel equivalent to compressed natural gas high in methane in a simple, low cost process involving steps of refrigeration, non-regenerative activated carbon purification and carbon dioxide removal using low-pressure membrane technology....

Process for producing a contaminant-depleted hydrocarbon gas stream with improved hydrocarbon recovery
12/27/12 - 20120324941 - A process for producing a contaminant-depleted gas stream from a contaminated hydrocarbon feed gas stream comprises: (a) expanding the contaminated to obtain an expanded stream; (b) allowing at least part of the contaminants in the expanded stream to liquefy to form a dispersion of a contaminants enriched liquid comprising hydrocarbons...

Method of processing gas associated with oil
07/05/12 - 20120167621 - The invention relates to a method for producing combustible gas for gas engines from associated gas obtained during oil production, the associated gas containing methane, ethane, propane, hydrocarbons having more than three carbon atoms, and optionally propene, wherein a gaseous fraction and a liquid fraction are obtained by partially condensing...

Sublimation systems and associated methods
05/03/12 - 20120103012 - A system for vaporizing and sublimating a slurry comprising a fluid including solid particles therein. The system includes a first heat exchanger configured to receive the fluid including solid particles and vaporize the fluid and a second heat exchanger configured to receive the vaporized fluid and solid particles and sublimate...

Process and apparatus for separation of hydrocarbons and nitrogen
04/19/12 - 20120090355 - The invention provides a process and apparatus for the separation of nitrogen from a gaseous feed comprising a mixture of hydrocarbons and nitrogen gas, the process comprising the steps of: (i) cooling and at least partially condensing the gaseous feed; (ii) feeding the cooled and at least partially condensed feed...

Methane conversion process
02/16/12 - 20120036889 - A process for converting a gaseous hydrocarbon feed comprising methane to an aromatic hydrocarbon is integrated with liquefied natural gas (LNG) and/or pipeline gas production. In the integrated process, the gaseous hydrocarbon feed is supplied to a conversion zone comprising at least one dehydroaromatization catalyst and is contacted with the...

Process and apparatus for separating a gaseous product from a feed stream comprising contaminants
01/12/12 - 20120006055 - 5) removing a stream comprising liquid phase contaminant from a lower part of the device....

Enhanced natural gas liquid recovery process
08/18/11 - 20110197629 - A method comprises receiving a hydrocarbon feed stream; separating the hydrocarbon feed stream into a heavy hydrocarbon rich stream and a recycle stream, wherein the recycle stream comprises a gas selected from the group consisting of carbon dioxide, nitrogen, air, and water; and separating the recycle stream into a natural...

Process for removing a gaseous contaminant from a contaminated gas stream
06/30/11 - 20110154856 - The invention provides a process for removing one or more gaseous contaminants from a contaminated feed gas stream, the process comprising 1) providing the contaminated feed gas stream, 2) cooling the contaminated feed gas stream to a temperature at which liquid contaminant is formed as well as a contaminant depleted...

Conditioning an ethane-rich stream for storage and transportation
06/09/11 - 20110132033 - A process comprising receiving an ethane-rich stream comprising at least about 70 molar percent ethane, conditioning the ethane-rich stream to a temperature such that the ethane-rich stream has a vapor pressure similar to the vapor pressure of conventional liquefied natural gas (LNG), and transporting the conditioned ethane-rich stream. Included is...

Producing purified hydrocarbon gas from a gas stream comprising hydrocarbons and acidic contaminants
04/28/11 - 20110094264 - Process for producing purified hydrocarbon gas from a gas stream comprising hydrocarbons and acidic contaminants, which process comprises the steps: (a) cooling the gas stream to a temperature to form a mixture comprising solid and optionally liquid acidic contaminants and a vapour containing gaseous hydrocarbons; (b) separating the solid and...

Method of bulk transport and storage of gas in a liquid medium
05/27/10 - 20100126216 - 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 transportation conditions. After transporting the product to its...

Methods for recovering argon
05/13/10 - 20100115992 - Methods for recovering argon from a natural gas stream being purified are disclosed. The argon will be separated from the natural gas with helium and other impurities and can be recovered as liquids from the flash separation step of purifying the helium. The argon that is separated from the helium...

Liquid hydrocarbon slug containing vapor recovery system
09/10/09 - 20090223246 - A liquid hydrocarbon slug-containing vessel for incorporation into a system integrating a low-pressure separator with a vapor recovery process system, and a method for regulating the temperature of a gas to be compressed by a two stage compressor so as to prevent liquification of the gas and to prevent over-heating...

Liquefied natural gas with butane and method of storing and processing the same
08/13/09 - 20090199591 - Disclosed is a liquefied natural gas composition. The composition contains methane, ethane and propane and butane. The composition contains a substantial amount of butane while being substantially free of hydrocarbon molecules larger than butane....

Multiple reflux stream hydrocarbon recovery process
05/07/09 - 20090113930 - An ethane recovery process utilizing multiple reflux streams is provided. Feed gas is cooled, partially condensed, and separated into a first liquid stream and a first vapor stream. First liquid stream is expanded and sent to a demethanizer. First vapor stream is split into a first and a second separator...