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WO/2008/078040A2 |
The invention relates to a method for separating a mixture containing carbon monoxide, nitrogen and hydrogen by cryogenic distillation in a separation means system including a denitrification column (C4) and at least another column, that...
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WO/2008/076782A2 |
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 puri...
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WO/2008/076210A2 |
Processes to separate a light hydrocarbon stream comprising ethylene, ethane, and C3+ hydrocarbons into an ethylene stream, an ethane stream, and a C3+ hydrocarbon stream, including: feeding the light hydrocarbon stream to a deethanizer;...
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WO/2008/074718A2 |
Natural gas (NG) is liquefied in a hybrid liquefaction cycle (1, 2 & 3) in which the gas feed is precooled (10) using vaporizing liquefied refrigerant gas; liquefied (20) using vaporizing mixed refrigerant comprising ethylene and at leas...
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WO/2008/076206A1 |
Methods and apparatus for the integration of a fractionation process and an olefin refrigeration system, wherein the fractionation process olefin effluent is supplied to the refrigeration system, can eliminate a fractionation process con...
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WO/2008/073696A1 |
An inexpensive heat exchanger is disclosed, wherein the heat exchanger is made up of a plurality of plates (20, 30) and each plate (20, 30) has at least one channel (22, 32) defined in the plate (20, 30). The plates (20, 30) are stacked ...
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WO/2008/071008A1 |
A method to pre-heat gas at gas Pressure Reducing Stations. A first step involve providing at least one electrical line heater having a flow path for passage of natural gas through electrical heating elements. A second step involves pass...
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WO/2008/070017A2 |
Systems and methods for adjusting the heating value of liquefied natural gas ("LNG") are provided. LNG can be apportioned into at least two portions. A first portion can be warmed to provide a vapor-liquid mixture which can be separated ...
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WO/2008/068063A1 |
The subject-matter of the present invention relates to a process for preparing alkyl esters of methacrylic acid and its conversion products, which can be used in a multitude of chemical synthesis processes which can lead to a wide variet...
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WO/2008/070757A1 |
Separation method and apparatus for separating a gaseous mixture, for example, air, in a cryogenic rectification plant (1) in which a compressed stream (42) is divided into subsidiary streams (126, 128) that are extracted from a main hea...
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WO/2008/064762A2 |
The invention relates to a method for obtaining a carbon monoxide (37) and a hydrogen product (16) by cryogenically decomposing a feed gas (1) predominantly composed of hydrogen (H2) and carbon monoxide (CO) in a two-stage condensation p...
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WO/2008/064038A2 |
An apparatus, a system and a method for producing liquefied gas are provided. A liquefaction plant may be coupled to a source of, for example, unpurified natural gas, such as a natural gas pipeline at a pressure letdown station. A portio...
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WO/2008/063732A2 |
A method of increasing the production rate and operational flexibility of an LNG facility by overfiring one or more modular gas turbines employed to drive one or more refrigerant compressors in the LNG facility.
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WO/2008/058926A2 |
A method of cooling a hydrocarbon stream such as natural gas, the method at least comprising the steps of: (a) providing a feed stream (10); (b) passing the feed stream (10) through a gas treatment stage (2) comprising one or more (numbe...
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WO/2008/059399A2 |
A cryogenic process for the production of oxygen using an air separation unit comprising a double column, said double column comprising a high pressure column (9) and a low pressure column (11) comprising the steps of : sending compresse...
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WO/2008/060350A2 |
A method and system for transporting fluid is described. The method includes coupling a transit vessel to a terminal vessel associated with at least one terminal. The transit vessel and the terminal vessel are coupled at an open sea or l...
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WO2006115597B1 |
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 pressurized lean gas. The lean gas is further co...
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WO/2008/056269A1 |
A process for liquefying a gaseous methane-rich feed (20) to obtain liquefied natural gas, wherein a gaseous methane- rich feed at elevated pressure is conducted through a heat exchanger (1), where it is cooled, liquefied and sub-cooled ...
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WO2007149463B1 |
Ethane is separated from a carbon dioxide-containing feed gas in a demethanizer that receives a rich subcooled reflux stream at very low temperature. Freezing of carbon dioxide is prevented by feeding a temperature-controlled vapor porti...
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WO/2008/054924A2 |
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 increases operational stability and minimizes c...
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WO/2008/054469A2 |
A system for separating air by cryogenic rectification whereby liquid production is increased by employing two separate turboexpanders (14, 24), one which (14) exhausts at a pressure no higher than that sufficient to feed the lower press...
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WO/2008/054229A1 |
The present invention relates to a process plant and method for cooling and optionally liquefaction of a product gas, particularly for liquefaction of natural gas, based on a closed loop of multi-component refrigerant in heat exchange wi...
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WO/2008/049821A2 |
A method of cooling at least two hydrocarbon streams such as natural gas, the method at least comprising the steps of : (a) providing at least first and second hydrocarbon streams (20, 20a); (b) passing the first hydrocarbon strea (20) t...
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WO/2008/049827A2 |
The invention provides a process for producing purified natural gas, the process comprising the steps of : expanding a pressurised natural gas stream comprising at least 4 ppmv of mercaptans and supplying it to a first separation column,...
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WO/2008/051079A1 |
The invention relates to a method for separating a medium mixture into at least two fractions with differing mass density. The method provides a mixture for separating, subjects the medium mixture to a volume force, and discharges at lea...
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WO/2008/049830A2 |
In a method of treating a hydrocarbon stream, such as a natural gas stream, a partly condensed feed stream (10) is supplied to a first gas/liquid separator (2), where it is separated into a gaseous stream (20) and a liquid stream (30). T...
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WO/2008/051259A2 |
A method for carrying out the cryogenic air separation of air wherein feed air is processed in three streams (4, 20, 30). The three streams are at different pressures. One of the three streams is tuboexpanded (122) to generate refrigerat...
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WO2008002592B1 |
Contemplated methods and configurations use a cooled ethane and CO2-containing feed gas that is expanded in a first turbo-expander and subsequently heat-exchanged to allow for relatively high expander inlet temperatures to a second turbo...
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WO/2008/049818A2 |
A method of controlling the turndown of a compressor (12) for a gaseous hydrocarbon stream (10) such as natural gas, comprising at least the steps of : (a) passing the gaseous hydrocarbon stream (10) through the compressor (12) to provid...
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WO/2008/043806A2 |
A hydrocarbon stream (30), such as natural gas, is commonly cooled together with a first refrigerant stream (140), against an evaporating refrigerant (24) in a series of one or more consecutively arranged common heat exchangers (2), whic...
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WO/2008/040894A2 |
In a process for separating air by cryogenic distillation using a column system, compressed air is boosted in a booster (3) and cooled in a main exchanger (7). The cooled air is divided into two fractions, a first fraction (13) being sen...
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WO/2008/042509A2 |
Recovery of ethane, ethylene, propane, propylene, and heavier hydrocarbon components from a hydrocarbon gas stream. The stream is cooled and divided into first and second streams. The first stream is further cooled to condense it and is ...
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WO/2008/038561A1 |
A method for the enrichment of heavy oxygen isotopes which comprises the first distillation step of feeding both ozone and oxygen generated in an ozonizer (12) into a distillation column (13) filled with a diluent gas and conducting the ...
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WO/2008/039210A1 |
Apparatuses and methods are provided for producing liquefied gas, such as liquefied natural gas. In one embodiment, a liquefaction plant may be coupled to a source of unpurified natural gas, such as a natural gas pipeline at a pressure l...
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WO/2008/034875A2 |
A method and apparatus for liquefying a hydrocarbon stream such as natural gas from a feed stream. A feed stream (10) is provided and passed through at least two cooling stages (2, 4). Each cooling stage involves one or more heat exchang...
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WO/2008/034874A2 |
A method and apparatus for cooling two or more liquefied hydrocarbon streams. First (30) and second (30a) liquefied hydrocarbon streams are provided and combined thereby providing a combined liquefied hydrocarbon stream (40). The combine...
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WO/2008/028238A1 |
The invention resides in a method for the selective capture and removal of gases and vapors from a gas stream using thermo-acoustic means including the steps of firstly cooling the gas stream using at least one heat exchanger, then passi...
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WO/2008/025741A2 |
The present invention relates to a method for generating gaseous hydrocarbon stream from a liquefied hydrocarbon stream (10) such as liquefied natural gas, the method at least comprising the steps of : a) feeding a liquefied hydrocarbon ...
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WO/2008/023000A2 |
The present invention relates to a method for the vaporization of a liquid hydrocarbon stream (110) such -as LNG, the method at least comprising the steps of : (a) supplying a partly condensed hydrocarbon feed stream (10) to a first gas/...
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WO/2008/022689A2 |
Disclosed is a method for liquefying a hydrocarbon-rich flow, particularly a natural gas flow, by indirectly exchanging heat with a nitrogen refrigeration cycle. The nitrogen circulating in the nitrogen refrigeration cycle is compressed ...
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WO/2008/023059A2 |
Disclosed is a method for liquefying a hydrocarbon-rich stream, in particular a natural gas stream, by indirectly exchanging heat with the coolant mixture of a coolant mixture circuit. In said method, the coolant mixture is condensed in ...
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WO/2008/022998A2 |
The present invention relates to a method of treating a hydrocarbon stream, the method at least comprising the steps of : supplying a partly condensed.fe stream (10). to a first gas/liquid separator (2) and into a gaseous stream (2 and a...
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WO/2008/019999A2 |
A method of cooling a hydrocarbon stream such as natural gas from a feed stream (10), the method at least comprising the steps of : (a) passing the feed stream (10) and a first refrigerant stream (20) through a cooling stage (100) includ...
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WO/2008/020044A2 |
Method and apparatus for liquefying a hydrocarbon stream such as natural gas from a feed stream. The method comprises at least the steps of: first cooling the feed stream (10) against a first cooling refrigerant being cycled in a first c...
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WO/2008/017582A2 |
In order to improve the combustibility and the calorific value of fuels, these fuels are subjected to different pretreatment methods. In order to improve the cost-effectiveness of the pretreatment of fuels, it is proposed to remove nonco...
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WO/2008/017583A1 |
Obtaining inert gas by means of decomposition of air involves great efforts and low yields due to the low inert gas content of air. According to the invention the production of inert gas from a gas mixture is improved in that a process s...
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WO/2008/017786A2 |
In a method for denitrogenation of a gaseous mixture comprising at least methane and nitrogen, the mixture (1) is separated so as to form a nitrogen-enriched gas (5) and a methane-enriched liquid (7) and part (13) of the methane-enriched...
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WO/2008/018814A1 |
The invention relates to cryogenic engineering, in particular to methods for purifying and separating a heavy component concentrate by rectification in such a way that target components, for example krypton and xenon and isotopes of ligh...
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WO/2008/015224A2 |
Method of liquefying a natural gas from a feed stream (10), the method at least comprising the steps of : passing the feed stream (10) through a first cooling stage (100a, 100b) having at least two heat exchangers (112) and against a fir...
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WO/2008/014899A1 |
The method is used for producing a cold box which comprises a supporting structure and at least one cladding element. The cladding element comprises a cladding plate (4) with vertical reinforcements (2) which are arranged at a distance f...
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