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US20130104598 NGL EXTRACTION FROM LIQUEFIED NATURAL GAS  
A process of extraction of natural gas liquids from a liquefied natural gas stream is disclosed.
US20120042690 LNG FACILITY WITH INTEGRATED NGL RECOVERY FOR ENHANCED LIQUID RECOVERY AND PRODUCT FLEXIBILITY  
Process for efficiently operating a natural gas liquefaction system with integrated heavies removal/natural gas liquids recovery to produce liquefied natural gas (LNG) and/or natural gas liquids...
US20110289963 Process for separating Nitrogen from a natural gas stream with Nitrogen stripping in the production of liquefied natural gas  
A mixed single refrigerant process for separating a nitrogen gas stream from a natural gas stream containing nitrogen to produce a nitrogen gas stream from a liquefied natural gas stream wherein...
US20130298602 NGL Recovery from a Recycle Stream Having Natural Gas  
A method for recovering natural gas liquids from a recycle stream having natural gas is provided. In one embodiment, a carbon dioxide recycle stream that comprises carbon dioxide, natural gas, and...
US20110036121 Refrigerant Composition Control  
A system and method for removal of a contaminant comprising removing a liquefied portion of a refrigerant stream comprising nitrogen from a reverse Brayton cycle refrigerant system, introducing...
US20110048067 NATURAL GAS LIQUEFACTION METHOD WITH HIGH-PRESSURE FRACTIONATION  
The method provides liquefaction of a natural gas by carrying out the following stages: cooling the natural gas,feeding the cooled natural gas into a fractionating column so as to separate a...
US20090301132 OPTIMIZED HEAVIES REMOVAL SYSTEM IN AN LNG FACILITY  
An LNG facility employing an optimized heavies removal system. The optimized heavies removal system can comprise at least one distillation column and at least two separate heat exchangers. The...
US20070101762 Method for designing a cryogenic air separation plant  
A method for designing a cryogenic air separation plant wherein a particular plant which fits into a certain classification is designed by first employing at least one predesigned subsystem for...
US20140007616 ETHANE RECOVERY AND ETHANE REJECTION METHODS AND CONFIGURATIONS  
Contemplated plants for flexible ethane recovery and rejection by allowing to switch the top reflux to the demethanizer from residue gas to the deethanizer overhead product and by controlling the...
US20150219394 NATURAL GAS LIQUIDS STABILIZER WITH SIDE STRIPPER  
The invention provides a process and system for processing natural gas and separating natural gas liquids into natural gasoline and a Y-grade liquid that meets specifications for low methane and...
US20120056122 1,3,3,3-TETRAFLUOROPROPENE PROCESS AZEOTROPES WITH HF  
The present invention pertains to azeotropic and azeotrope-like compositions of the following three blends: 1. Trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)), cis-1,3,3,3-tetrafluoropropene...
US20080115530 CONTAMINANT REMOVAL SYSTEM FOR CLOSED-LOOP REFRIGERATION CYCLES OF AN LNG FACILITY  
A system for removing a contaminant from a refrigerant stream employed in a closed-loop refrigeration cycle of an LNG facility. The system employs a distillation column to separate the refrigerant...
US20140238075 METHOD FOR PRODUCING A FLOW WHICH IS RICH IN METHANE AND A CUT WHICH IS RICH IN C2+ HYDROCARBONS FROM A FLOW OF FEED NATURAL GAS AND AN ASSOCIATED INSTALLATION  
This method comprises cooling the feed natural gas in a first heat exchanger and introducing the cooled, feed natural gas into a first separation flask. It comprises the dynamic expansion of a...
US20140026614 METHOD FOR MEASUREMENT AND CALCULATION OF DEW POINT FOR FRACTIONATION COLUMN OVERHEADS  
Methods for controlling the operation of fractionation columns to avoid column flooding are described. The methods use mass flow meters to measure the mass flow rates of the receiver vapor, and...
US20150052940 FRACTIONATION SYSTEM AND METHOD INCLUDING DEPROPANIZER COLUMN AND BOTTOMS STRIPPING COLUMN  
Fractionation systems utilizing a rectifying column with a stripping column are described. The liquid from the rectifying column bottoms is sent to the first tray of the stripping column, while...
US20050279132 LNG system with enhanced turboexpander configuration  
Natural gas liquefaction system employing a turboexpander to convert excess pressure within a predominantly methane stream into work useable in another location within the liquefaction system....
US20110174017 Helium Recovery From Natural Gas Integrated With NGL Recovery  
The invention relates to a process for producing a helium-enriched vapor stream, a methane-enriched vapor stream, and a liquid stream enriched in hydrocarbons heavier than methane from a...
US20100154471 Imported LNG treatment  
The process of treating imported heating grade source LNG to form engine fuel grade LNG, and/or produce power.
US20110094263 METHODS OF NATURAL GAS LIQUEFACTION AND NATURAL GAS LIQUEFACTION PLANTS UTILIZING MULTIPLE AND VARYING GAS STREAMS  
A method of natural gas liquefaction may include cooling a gaseous NG process stream to form a liquid NG process stream. The method may further include directing the first tail gas stream out of a...
US20150052941 FRACTIONATION SYSTEM HAVING RECTIFYING AND STRIPPING COLUMNS IN A SINGLE VESSEL WITH A UNIFORM DIAMETER  
Fractionation systems utilizing a single rectifying column with a stripping column housed in the same vessel and having a uniform diameter are described. Methods of separating feed streams using...
US20080271480 Intergrated Ngl Recovery and Lng Liquefaction  
Contemplated plants include a refluxed absorber and a distillation column, wherein the absorber is operated at a higher pressure than the distillation column to thereby produce a cryogenic...
US20090211297 HELIUM PRODUCTION IN LNG PLANTS  
A process for separating a helium-rich fraction from a liquefied natural gas stream, is disclosed. In an embodiment, the process includes expansion of a liquefied natural gas stream and separation...
US20070056318 Enhanced heavies removal/LPG recovery process for LNG facilities  
A LNG facility, and operating method therefor, capable of more efficiently and/or effectively removing heavy hydrocarbon components from the processed natural gas stream and recovering the removed...
US20070180855 Downflow knockback condenser  
An apparatus and method useful for partially condensing vapor in the upper section of a fractionation tower to separate and remove a lighter gaseous fraction from a condensed liquid component,...
US20060277943 Process and apparatus for separation of hydrocarbons from liquefied natural gas  
A process for separating hydrocarbons from an LNG, including the steps of: distilling a feed LNG in a first distillation column to separate it into a fraction enriched with methane and a fraction...
US20070012072 LNG FACILITY WITH INTEGRATED NGL EXTRACTION TECHNOLOGY FOR ENHANCED NGL RECOVERY AND PRODUCT FLEXIBILITY  
Process for efficiently operating a natural gas liquefaction system with integrated heavies removal/natural gas liquids recovery to produce liquefied natural gas (LNG) and/or natural gas liquids...
US20100024477 Integrated NGL Recovery And Liquefied Natural Gas Production  
The separation of methane from an admixture (110) with ethane and higher hydrocarbons, especially natural gas, using a scrub column (114), in which the admixture is separated into a methane-rich...
US20080098770 INTERMEDIATE PRESSURE LNG REFLUXED NGL RECOVERY PROCESS  
Liquefied natural gas (LNG) facility employing an intermediate pressure distillation column for recovery of ethane and heavier components from the processed natural gas stream in a way that...
US20130192298 DISTILLATION COLUMN HEAT PUMP WITH COMPRESSOR INLET SUPERHEATER  
Light naphtha distillation columns with heat pumps and methods of operating them are described. The overhead stream is compressed to increase temperature so that it can be used both to heat the...
US20110209499 METHOD FOR REMOVING NITROGEN  
A process is described for separating off a nitrogen-rich fraction from a feed fraction containing essentially nitrogen and hydrocarbons, wherein the feed fraction is separated by rectification...
US20080314079 Nitrogen Rejection Column Reboiler Configuration  
A process is provided for denitrogenation of a crude LNG stream. A crude LNG stream comprising between about 1% and 10% nitrogen, and the remainder methane and heavier hydrocarbons, is expanded in...
US20100077796 Hybrid Membrane/Distillation Method and System for Removing Nitrogen from Methane  
A hybrid gas separation membrane/cryogenic distillation method and system produces high purity gaseous methane from a gas mixture containing a majority of methane and a minority of nitrogen.
US20100050688 NGL Extraction from Liquefied Natural Gas  
A process of extraction of natural gas liquids from a liquefied natural gas stream is disclosed.
US20120060554 METHOD FOR SEPARATING OFF NITROGEN AND HYDROGEN FROM NATURAL GAS  
The invention relates to a method for separating off nitrogen and lighter components, in particular hydrogen, carbon monoxide, neon and argon, from a feed fraction (e.g., natural gas) that is to...
US20090151391 LNG FACILITY EMPLOYING A HEAVIES ENRICHING STREAM  
An LNG facility employing a heavies enriching stream to increase the flexibility of the LNG facility by allowing feed gas streams of widely varying compositions to be processed while producing...
US20090173103 Cryogenic Process Utilizing High Pressure Absorber Column  
A gas processing plant has a de-ethanizer and a refluxed absorber, wherein the absorber operates at higher pressure than the de-ethanizer, and wherein at least a portion of the absorber bottoms...
US20080190135 Configurations and Methods For Lpg Production and Power Cogeneration  
An LNG plant is configured to receive rich LNG and to produce LPG, lean LNG, and power using at least one fractionation column, wherein the fractionation portion of the plant can be optionally...
US20080190136 Hydrocarbon Gas Processing  
A process and apparatus for the recovery of ethane, ethylene, propane, propylene, and heavier hydrocarbon components from a hydrocarbon gas stream is disclosed. The stream is cooled and divided...
US20090293537 NGL Extraction From Natural Gas  
A process of extraction of natural gas liquids from a hydrocarbon stream is disclosed. The recovered natural gas liquids are flashed to a vapor to provide refrigeration to the process.
US20090165498 Configurations and Methods for Rich Gas Conditioning for NGL Recovery  
Contemplated gas treatment plants for recovery of NGL from rich feed gas include an upstream conditioning unit in which heavier hydrocarbons, and most typically C5 and heavier are removed prior to...
US20090193846 Recovery of Carbon Monoxide and Hydrogen From Hydrocarbon Streams  
A process is described for the recovery of CO and optionally hydrogen from a stream containing CO, H2, methane, and hydrocarbons heavier than methane. The process is characterized by a two-stage...
US20140260420 FLEXIBLE NGL RECOVERY METHODS AND CONFIGURATIONS  
A natural gas liquids plant uses a demethanizer and a deethanizer in a two-column or single column configuration that can be used for ethane recovery and ethane rejection. During ethane recovery,...
US20060005573 Method for liquefying a hydrocarbon-rich flow while simultaneously obtaining a c3/c4-rich fraction  
A process for liquefying a flow of natural gas with simultaneous recovery of a C3/C4-rich fraction is described, whereby the liquefaction of the flow of natural gas is carried out in heat exchange...
US20070157663 Configurations and methods of integrated NGL recovery and LNG liquefaction  
Contemplated plants include a NGL recovery portion and a LNG liquefaction portion, wherein the NGL recovery portion provides a low-temperature and high-pressure overhead product directly to the...
US20140290307 METHOD FOR PRODUCING A METHANE-RICH STREAM AND A C2+ HYDROCARBON-RICH STREAM, AND ASSOCIATED EQUIPMENT  
This method comprises a separation of a feed stream (16) into a first fraction (41A) and a second fraction (41B). It comprises injecting the first cooled feed fraction (42) into a first separating...
US20150013380 METHOD FOR SEPARATING OFF ACID GASES FROM NATURAL GAS  
A method is provided for separating off acid gases, in particular CO2 and H2S, from a hydrocarbon-rich fraction, in particular natural gas. The hydrocarbon-rich fraction is cooled and partially...
US20120047946 METHOD FOR SEPARATING OFF NITROGEN FROM NATURAL GAS  
The invention relates to a method for resolving a hydrocarbon-rich, nitrogen-containing feed fraction (1, 1′), preferably natural gas, is described, wherein the feed fraction (1, 1′) is separated...
US20090248174 CONTROL METHOD OF REFRIGERATION SYSTEMS IN GAS PLANTS WITH PARALLEL TRAINS  
An optimization method based on statistical modeling relating NGL plant process variables. The modeling may rely on input data from process history and modeled data. The method identifies process...
US20100192627 Method And Device For The Cryogenic Separation Of A Methane-Rich Flow  
A method and device for the cryogenic separation of a methane-rich flow is provided.
US20090200022 CRYOGENIC TREATMENT OF GAS  
Systems and methods of treating a gas stream are described. A method of treating a gas stream includes cryogenically separating a first gas stream to form a second gas stream and a third stream....
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