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WO/2008/014091A2 |
Cascade-type natural gas liquefaction methods and apparatus are provided, having enhanced thermodynamic efficiencies, through the use of added refrigeration levels in one or both of the ethylene and methane refrigeration systems thereof.
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WO/2008/013843A2 |
The present invention relates to a system for carrying out oxygen-enhanced combustion in an industrial process wherein the industrial process, an oxygen supply system or a source of oxygen, a heat recovery network, and an alternative Ran...
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WO/2008/009930A2 |
In the transportation and processing of natural gas liquid nitrogen and liquid carbon dioxide is used in a heat exchanger process to liquefy natural gas supplied by a field site. The liquefied natural gas is transported to a regasif icat...
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WO/2008/009721A2 |
Method of liquefying a hydrocarbon stream such as natural gas from a feed stream (10), the method at least comprising the steps of: (a) circulating a first refrigerant stream (70) in a first refrigerant circuit (110) by cooling it in one...
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WO/2008/006788A2 |
The present invention provides a method of liquefying a hydrocarbon stream such as natural gas, the method at least comprising the steps of : (a) providing a hydrocarbon stream (10) at a first location (2), wherein the first location is ...
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WO/2008/006221A1 |
A method for selective extraction of natural gas liquids from "rich" natural gas. The method involves the step of effecting a heat exchange between a rich natural gas stream and a refrigerant fluid to lower a temperature of the rich natu...
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WO/2008/006222A1 |
A method for selective extraction of natural gas liquids from "rich" natural gas. The method involves interacting a rich natural gas stream with Liquid Natural Gas (LNG) by mixing Liquid Natural Gas into the rich natural gas stream to lo...
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WO/2008/006842A2 |
The present invention provides a method of natural gas, the method at least comprising the steps of: (a) providing a natural gas stream (10) at a first location (2); (b) treating the natural gas stream (10) in the first location (2) ther...
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WO/2008/006867A2 |
A method of liquefying natural gas from a feed stream (10) comprising at least the steps of : passing the feed stream (10) against a mixed refrigerant being cycled through a heat exchanger (12), to provide an at least partly liquefied hy...
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WO/2008/004321A1 |
An ozonized oxygen gas can be enriched by forming in one ozone concentration chamber both a cooling-temperature section in which ozone is selectively condensed from an ozonized oxygen gas and which permits the selective permeation and di...
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WO/2008/004278A1 |
A part (A) having temperatures in a range in which ozone can be separated by dew condensation from an ozonized oxygen gas and a part (B) having temperatures in a range in which the ozone condensed can be vaporized are formed in one ozone...
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WO/2008/000640A1 |
A cryogenic installation unit comprises at least one item of equipment (2, 6A to 6H, 15) to be thermally insulated, a structure (1) for containing the at least one item of equipment, a main insulation (3) contained in the structure and, ...
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WO/2007/149345A2 |
A plate-fin heat exchanger (18) having alternating layers (60, 98) for exchanging heat between fluids to be warmed against fluids to be cooled. One or both of the layers (60, 98) is subdivided into flow passages (116, 118, 120, 122, 124)...
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WO/2007/148122A2 |
A method for producing Liquefied Natural Gas (LNG) at a Pressure Reduction Station (PRS) comprising the steps of : a) expanding (8) an input stream of natural gas (3) from a gas transmission system; b) separating (12) the input stream of...
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WO/2007/144395A2 |
The present invention relates to a method of treating a hydrocarbon stream such as a natural gas stream, the method at least comprising the steps of: (a) supplying a partially condensed feed stream (10) to a first gas/liquid separator (2...
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WO/2007/144078A2 |
The invention relates to a process for liquefying hydrogen. To reduce the specific energy consumption, the following process steps are used: a) the precooling of the hydrogen stream by indirect heat exchange against a pressurized LNG str...
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WO/2007/145915A2 |
Argon, oxygen and nitrogen contained within an incoming air feed (10) is fractionated within an air separation system having a multiple column arrangement (32) that includes a higher pressure column (30) and a lower pressure column (34) ...
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WO/2007/145029A1 |
A low-temperature slush fluid production apparatus that attains an increase of weight solidification ratio of slush fluid. There is provided low-temperature slush fluid production apparatus (1) comprising heat exchanger (12) with heat tr...
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WO/2007/144774A2 |
Vapour boiled off from a liquefied natural gas storage tank 10 is compressed in vapour compression stages 40 and 42. The resulting compressed vapour is condensed in a condenser 46 and the condensate returned to the tank 10. The condenser...
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WO2007008525B1 |
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 LNG liquefaction portion. Feed gas cooling ...
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WO/2007/142668A1 |
The current invention provides a methodology and apparatus for the liquefaction of normally gaseous material, most notably natural gas, which reduces the number of process vessels required and/or reduces space requirements over conventio...
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WO/2007/141227A2 |
A method of treating a hydrocarbon stream such as natural gas comprising at least the steps of: (a) providing a hydrocarbon feed stream (10); (b) passing the feed stream (10) through a first separation vessel (12) to provide a first gase...
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WO/2007/138067A2 |
The present invention relates to a method for treating a natural gas feed stream, containing > 10 mole% CO2, the method at least comprising the steps of separating the feed stream (10) in a first (2) or a second (3) gas / liquid separato...
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WO/2007/135062A2 |
A method of treating a hydrocarbon stream such as natural gas from a feed stream (10) comprising at least the steps of: a) passing the feed stream (10) through a distillation column (12) to provide a gaseous stream (20) and a C2+ liquid ...
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WO/2007/131850A2 |
A method of liquefying a hydrocarbon stream such as natural gas from a feed stream, the method at least comprising the steps of: (a) providing a feed stream (10); (b) dividing the feed stream (10) of step (a) to provide at least a first ...
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WO/2007/133233A1 |
An apparatus and method for producing liquefied natural gas. A liquefaction plant may be coupled to a source of unpurified natural gas, such as a natural gas pipeline at a pressure letdown station. A portion of the gas is drawn off and s...
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WO/2007/133530A2 |
A pair of cooperatively-engageable handles comprising toothed locking elements and cooperative recess elements disposed over locating surfaces of each handle. The handle pair may be joined upon cooperative mechanical engagement of the to...
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WO/2007/129152A1 |
A cryogenic process of supplying oxygen to a power generation plant including at least an air separation unit(9,ll), a liquid oxygen tank(15) and an air derived component liquid tank(17), comprises: During a first period: feeding a first...
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WO/2007/130405A2 |
A hydrogen storage system for storing hydrogen gas at elevated pressures and cryogenic temperatures are disclosed. The hydrogen gas is fed to a storage container which contains a physisorption type material and a volatile liquid containe...
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WO/2007/130108A1 |
An apparatus and method for producing liquefied natural gas. A liquefaction plant may be coupled to a source of unpurified natural gas, such as a natural gas pipeline at a pressure letdown station. A portion of the gas is drawn off and s...
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WO/2007/122893A1 |
Disclosed is a method for concentrating 15N, a heavy nitrogen isotope, to the level of 50 atm% or greater with high efficiency. The method employs two or more distillation columns (T1 - T4) each equipped with at least one condenser (C1 ...
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WO/2007/123924A2 |
The current invention is an empirical optimization method based on statistical modeling relating NGL plant process variables with the refrigeration system's electricity usage. The method identifies the key process control variables in an...
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WO/2007/123673A1 |
A method of producing a carbon dioxide product stream (756) from a synthesis gas stream (18) formed within a hydrogen plant (1) having a synthesis gas reactor (10), a water-gas shift reactor (14), located downstream of the synthesis gas ...
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WO/2007/117717A2 |
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 includes controlling the first and secon...
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WO/2007/116050A2 |
The present invention relates to a method of liquefying a hydrocarbon stream such as a natural gas stream, the method at least comprising the steps of : supplying a partly condensed hydrocarbon feed stream (10) to a first gas/liquid sepa...
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WO/2007/117148A1 |
A method and an apparatus of pre-heating LNG boil-off gas (BOG) stream (1) flowing from a reservoir (74) in a reliquefaction system, prior to compression (C11, C12, C13). The method comprises heat exchanging the BOG stream in a first hea...
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WO/2007/112498A1 |
A fixed LNG production facility is described. The LNG production facility is positioned in a body of water at a production location, the facility comprising a plurality of spaced-apart modules, each module provided with plant equipment r...
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WO/2007/110331A1 |
The present invention relates to a method of liquefying a hydrocarbon stream such as a natural gas stream, the method at least comprising the steps of : supplying a partly condensed feed stream (10) having a pressure above 60 bar to a fi...
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WO/2007/110045A1 |
The invention relates to a method for partially liquefying a flow of natural gas that is continuously supplied at a high pressure of 15 to 70 bar. Said method comprises the following steps: a) the natural gas is first subjected to adsorp...
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WO/2007/104449A1 |
Disclosed are a method and an apparatus for fractionating air at low temperatures by means of a nitrogen-oxygen separating distillation column system which comprises at least one fractionating column 21, 22). A main air flow (1, 5) is co...
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WO/2007/099246A2 |
The invention relates to a method of integrating a plurality of blast furnaces with a plurality of air gas separation units, in which the replacement blower available on the blast furnace site is used to feed compressed air into an air g...
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WO/2007/092666A2 |
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, such as nitrogen from natural gas. A downflo...
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WO/2007/088107A2 |
In a method for regulating a series of apparatus for separating air by cryogenic distillation, the series comprising N air separation apparatus (1, 2, 3, 4), where N>1, an air gas having substantially the same composition is sent from th...
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WO/2007/087713A1 |
A method of conditioning natural gas in preparation for storage, involves taking an existing stream of continuously flowing natural gas flowing through a gas line (12) on its way to end users and diverting a portion of the stream of cont...
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WO/2007/077139A2 |
A process for enhanced oil recovery in combination with the production of hydrocarbons from synthesis gas, the process comprising injecting a gaseous mixture comprising carbon dioxide into a subsurface reservoir to enhance the recovery o...
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WO/2007/078212A1 |
The invention relates to cryogenic engineering, in particular to purifying and separating a krypton-xenon mixture producible by means of air-separating plants and can be used in the chemical and oil-and-gas industries. The inventive meth...
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WO/2007/077139A1 |
A process for enhanced oil recovery in combination with the production of hydrocarbons from synthesis gas, the process comprising injecting a gaseous mixture comprising carbon dioxide into a subsurface reservoir to enhance the recovery o...
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WO/2007/074294A2 |
The inventive method and device for recovering carbon dioxide from fumes use a) a first fumes cooling device (110, 120) comprising at least one heat exchanger (122) which is used for removing by condensing a water fraction contained in f...
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WO/2007/074276A2 |
The invention relates to an air separating device by means of cryogenic distillation for producing nitrogen, comprising an exchange line (3), a simple distillation column (7) containing plates and/or structured packings, a supply line fo...
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WO/2007/070198A2 |
A method is proposed for converting a portion of associated gas generated during crude oil production into a liquid form which permits the transport of a large amount of methane at moderate temperatures. A methane-containing liquid is pr...
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