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7631516 |
Liquefied natural gas processing
A process and apparatus for the recovery of ethane, ethylene, propane, propylene, and heavier hydrocarbons from a liquefied natural gas (LNG) stream is disclosed. The LNG feed stream is divided...
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7621152 |
Compact cryogenic plant
A cryogenic plant having at least two direct phase separation devices such as distillation columns whose circular perimeters serve to define the perimeter of the cold box encompassing the direct...
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7603867 |
Process and system to produce multiple distributable products from source, or imported LNG
The process that includes providing the following elements for treating source refrigerated LNG, a heat exchanger/condenser through which refrigerated LNG passes, a vaporizer receiving LNG from the...
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7600395 |
LNG system employing refluxed heavies removal column with overhead condensing
A process and apparatus for the liquefaction of natural gas including an improved heavy hydrocarbon removal column with overhead condensing and refluxing. Particularly, a methane-rich stream...
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7600396 |
Power cycle with liquefied natural gas regasification
Liquefied natural gas (LNG) or components thereof are used as working fluids in power generation cycles in a LNG regasification plant. Especially preferred plant configurations will be able to...
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7565815 |
Natural gas liquefaction
A process for liquefying natural gas in conjunction with producing a liquid stream containing predominantly hydrocarbons heavier than methane is disclosed. In the process, the natural gas stream to...
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7520143 |
Dual stage nitrogen rejection from liquefied natural gas
Nitrogen is removed from a liquefied natural gas feed ( 41 ) by a two stage separation in which the liquefied natural gas ( 41 ) is first fractionated ( 23 ) to provide a first nitrogen-enriched...
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7516626 |
Apparatus for the low-temperature separation of a gas mixture, in particular air
The apparatus is used to produce a product by low-temperature separation of a gas mixture, in particular air. It includes a direct contact cooler ( 3 ) for cooling the feed mixture, a purification...
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7503186 |
Method and system for condensation of unprocessed well stream from offshore gas or gas condensate field
In a method of condensing an unprocessed well stream from an offshore gas or gas condensate field the well stream taken from one or more wellheads is cooled and directly expanded, isentropically,...
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7500370 |
System and method for coordination and optimization of liquefied natural gas (LNG) processes
A method includes controlling a first process using a first process control system. The method also includes controlling a second process using a second process control system. The method further...
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7484385 |
Multiple reflux stream hydrocarbon recovery process
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...
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7475566 |
Liquid natural gas processing
A process for the recovery of natural gas liquids (NGL) from liquefied natural gas (LNG) is disclosed. The LNG feed stream is subjected to a two stage separation process where the bottoms from the...
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7467527 |
Method and apparatus for the production of carbon monoxide and/or hydrogen and/or a mixture of hydrogen and carbon monoxide by cryogenic distillation
The invention provides an installation for the production of hydrogen and/or carbon monoxide and/or a mixture of hydrogen and carbon monoxide, by separating a mixture to be processed ( 1 ) which...
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7437891 |
Recovery and purification of ethylene
A process for the recovery and purification of ethylene and optionally propylene from a stream containing lighter and heavier components that employs an ethylene distributor column and a partially...
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7404301 |
LNG facility providing enhanced liquid recovery and product flexibility
A single LNG facility, and operating method therefor, capable of efficiently producing LNG products that meet the varying specifications of different LNG markets.
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7357003 |
Process and apparatus for separation of hydrocarbons
There are provided a process for separation of hydrocarbons including the steps of: (a) a feed gas is cooled and partly condensed, and separated into a gas and a liquid; (b) the liquid obtained in...
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7310972 |
Process and apparatus for separation of hydrocarbons from liquefied natural gas
An apparatus and process for separating a feed liquefied natural gas containing at least methane and a hydrocarbon less volatile the methane, into a product natural gas enriched with methane and...
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7278281 |
Method and apparatus for reducing C2 and C3 at LNG receiving terminals
A liquefied natural gas (LNG) receiving terminal is provided, including an extraction column adapted and configured to separate a C 1 component from other components in a LNG stream into a C 1 ...
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7257966 |
Internal refrigeration for enhanced NGL recovery
The present invention is directed to methods for improving the efficiency of processes for the recovery of natural gas liquids from a gas feed, e.g., raw natural gas or a refinery or petrochemical...
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7249469 |
Method for separating a multicomponent stream
This invention relates to a method for separating a stream having benzene, toluene and alkyl benzene, said method comprising: feeding the stream into a first distillation column, wherein the stream...
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7237407 |
Process and plant for the simultaneous production of an liquefiable natural gas and a cut of natural gas liquids
This process includes the following steps:
(a) the feed natural gas ( 101 ) is introduced into a first distillation column ( 31 ) which produces, as top product, a pretreated natural gas (...
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7234322 |
LNG system with warm nitrogen rejection
Natural gas liquefaction system employing an enhanced nitrogen removal system capable of removing nitrogen from a relatively warm natural gas stream.
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7234323 |
Recovering natural gas liquids from LNG using vacuum distillation
A process for recovering liquefied C 3 compounds from a natural gas stream containing C 3 compounds which comprises (a) chilling the natural gas stream under conditions sufficient to liquefy the...
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7225636 |
Apparatus and methods for processing hydrocarbons to produce liquified natural gas
An apparatus for and process for recovering LNG from reservoir natural gas which includes circulating a portion of the natural gas thru a gas cooling loop that includes heat exchanges, an expansion...
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7219513 |
Ethane plus and HHH process for NGL recovery
The present invention relates to methods for separating and recovering ethane, propane and heavier components from a feed gas, e.g. raw natural gas or a refinery or petroleum plant gas stream or a...
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7216507 |
Liquefied natural gas processing
A process and apparatus for the recovery of ethane, ethylene, propane, propylene, and heavier hydrocarbons from a liquefied natural gas (LNG) stream is disclosed. The LNG feed stream is divided...
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7185514 |
Method and installation for fractionating gas derived from pyrolysis of hydrocarbons
The invention relates to a method for fractionating a gas produced by the pyrolysis of hydrocarbons ( 1 ) for the recovery of C 2 and higher hydrocarbons, in particular ethylene and ethane,...
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7165423 |
Process for extracting ethane and heavier hydrocarbons from LNG
A process for the extraction and recovery of ethane and heavier hydrocarbons (C2+) from LNG. The process covered by this patent maximizes the utilization of the beneficial cryogenic thermal...
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7155931 |
Liquefied natural gas processing
A process and apparatus for the recovery of ethane, ethylene, propane, propylene, and heavier hydrocarbons from a liquefied natural gas (LNG) stream is disclosed. The LNG feed stream is directed in...
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7152432 |
Multistory bath condenser
The invention relates to a bath condenser with a condenser block ( 1 ) that has evaporation passages ( 8 ) for a liquid and liquefaction passages ( 2 ) for a heating medium and at least two...
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7152429 |
Method and installation for separating a gas containing methane and ethane with two columns operating at two different pressures
The invention relates to a method of separating a dry feed gas ( 1 ) containing mostly methane, ethane and propane into a first product ( 17 ), called the treated gas, which is relatively more...
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7096689 |
Method and a device for loading petroleum
A method of separating volatile organic components, so-called VOC, from crude oil, where, as it is loaded onto a ship, the crude oil is passed into a process vessel ( 2 ) in which is established a...
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7069744 |
Lean reflux-high hydrocarbon recovery process
A two-tower scheme process for the recovery of propane and heavier components from a hydrocarbon gas stream is provided. Feed gas is cooled, partially condensed, and then separated to give a first...
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7071236 |
Natural gas liquefaction and conversion method
The natural gas flowing in through line 1 is cooled, then expanded in turbine T 1 . The liquid at the bottom of drum D 2 is the liquefied natural gas. The gas at the top of drum D 2 is...
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7069743 |
System and method for recovery of C2+ hydrocarbons contained in liquefied natural gas
A processing method and system for separating methane-rich and ethane-rich components from an LNG stream. The LNG stream is preheated against a distillation column overhead vapor stream and against...
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7059152 |
Nitrogen rejection method and apparatus
Nitrogen is rejected from a feed natural gas stream comprising methane and nitrogen so as to form a primary methane product. The mole fraction of nitrogen in the feed natural gas increases over a...
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7043938 |
Method of thawing a cryogenic unit
A method for thawing and removing frozen material from a cryogenic separation unit such as that found in an olefin production plant comprising employing a flushing agent to thaw and remove the...
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6986266 |
Process and apparatus for LNG enriching in methane
Process and apparatus for separation of LNG allow both maximum enriching of the methane product in methane at any initial LNG composition, and to production the methane product in fully liquid...
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6978638 |
Nitrogen rejection from condensed natural gas
Method for the rejection of nitrogen from condensed natural gas which comprises (a) introducing the condensed natural gas into a distillation column at a first location therein, withdrawing a...
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6964181 |
Optimized heating value in natural gas liquids recovery scheme
A process and apparatus for controlling or reducing the heating value or BTU content of NGL recovered from LNG streams. LNG pipelines have a maximum allowable heating value that LNG must be within...
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6941771 |
Liquid natural gas processing
A process for the recovery of natural gas liquids (NGL) (ethane, ethylene, propane, propylene and heavier hydrocarbons) from liquefied natural gas (LNG) is disclosed. The LNG feed stream is split...
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6907752 |
Cryogenic liquid natural gas recovery process
A process for the recovery of natural gas liquids (NGL) (ethane, ethylene, propane, propylene and heavier hydrocarbons) from liquefied natural gas (LNG) is disclosed. The LNG feed stream is split...
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6823692 |
Carbon dioxide reduction scheme for NGL processes
An ethane recovery process resulting in a reduction in the amount of carbon dioxide in the recovered NGL stream is provided. To reduce the amount of carbon dioxide, a fractionation tower is...
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6748763 |
Multistoreyed bath condenser
The invention relates to a bath condenser with a condenser block ( 1 ) that has evaporation passages ( 8 ) for a liquid and liquefaction passages ( 2 ) for a heating medium. The condenser block ( 1...
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6735979 |
Process for pretreating a natural gas containing acid gases
A process for pretreating a very acid natural gas containing a substantial amount of hydrogen sulfide (H 2 S), possibly combined with carbon dioxide (CO 2 ), includes at least a stage wherein the...
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6713158 |
Structured packing
A structured packing with improved packing elements and method of using the structured packing. Each structured packing element comprises corrugated sheets and planar members alternating with and...
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6705113 |
Olefin plant refrigeration system
The refrigeration system for an ethylene plant comprises a closed loop tertiary refrigerant system containing methane, ethylene and propylene. The tertiary refrigerant from a compressor final...
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6658893 |
System and method for liquefied petroleum gas recovery
An improved process for recovery of liquefied petroleum gas from a raw natural gas feed stream, capable of achieving ultra high propane recovery yields, thereby separating substantially all of the...
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6620399 |
Purification of gases, in synthesis gas production process
A purifier process, includes supplying a first stream of a feed gas containing hydrogen and nitrogen in a MOL ratio of about 2/1, and also containing methane, and argon, then cryogenically...
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6609393 |
Introgen rejection method
A method of forming a methane product by rejecting nitrogen from a feed gas stream comprising methane and nitrogen is disclosed. After being cooled in a main heat exchanger, the feed gas stream is...
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