Patent application number | Description | Published |
20090008340 | Method for Evaporating a Process Stream Comprising at Least Two Components - A method of evaporating a process stream is disclosed. In an embodiment, a process stream to be cooled is provided to a heat exchanger. A process stream to be evaporated is provided to the heat exchanger. A gas and/or a liquid is admixed with the process stream to be evaporated only when an amount of gas generated during evaporation of the process stream cannot entrain a liquid portion of the process stream to be evaporated. A gas is generated by the admixing. | 01-08-2009 |
20090019888 | METHOD FOR LIQUEFYING A HYDROCARBON-RICH STREAM - A method for liquefying a hydrocarbon-rich stream, in particular a natural gas stream, is disclosed. A liquefaction of the hydrocarbon-rich stream takes place countercurrent to a refrigerant mixture cycle cascade consisting of two or three refrigerant mixture cycles. No additional process steps are involved in the heat exchange between the hydrocarbon-rich stream which is to be precooled and the refrigerant mixture of the first refrigerant mixture cycle. | 01-22-2009 |
20090211296 | METHOD AND APPARATUS FOR SEPARATING A FRACTION RICH IN C2+ FROM LIQUEFIED NATURAL GAS - A process and apparatus for separating a fraction rich in C | 08-27-2009 |
20100212354 | METHOD OF DISPOSING OF CARBON DIOXIDE - A process and also an arrangement for disposing of one of more carbon dioxide-containing fractions which occur at one or more sites of a fractionation and/or liquefaction process such as, for example, a natural gas liquefaction process. The carbon dioxide-containing fraction(s) is or are subjected to a purification (B) and/or liquefaction (C) and subsequently sequestered (D). Preferably, use is made of at least one substream ( | 08-26-2010 |
20100275646 | Method of Separating Off Nitrogen from Liquefied Natural Gas - A method of separating off an N | 11-04-2010 |
20110041389 | Process for Separating Off Nitrogen from Natural Gas - The invention relates to a process for liquefying a hydrocarbon-rich, nitrogen-containing feed fraction, preferably natural gas, wherein:
| 02-24-2011 |
20110041551 | PROCESS FOR SEPARATING OFF NITROGEN - The invention relates to a process for separating off C | 02-24-2011 |
20110209498 | PROCESS FOR SEPARATING OFF 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 into a nitrogen-rich fraction and a methane-rich fraction, the methane-rich fraction, for the purpose of cold generation at a pressure as high as possible, is vaporized against the feed fraction which is to be cooled and superheated and the nitrogen-rich fraction is compressed at least occasionally and/or at least in part and is fed to the rectification as reflux stream. | 09-01-2011 |
20110209499 | 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 into a nitrogen-rich fraction and a methane-rich fraction and wherein the methane-rich fraction for the purpose of cold generation is vaporized and superheated at a pressure as high as possible against the feed fraction which is to be cooled. | 09-01-2011 |
20110219819 | PROCESS FOR LIQUEFYING A HYDROCARBON-RICH FRACTION - A process is proposed for liquefying a hydrocarbon-rich fraction (A), especially natural gas, by
| 09-15-2011 |
20110277500 | NITROGEN REMOVAL FROM NATURAL GAS - The invention relates to a method for the separation of a hydrocarbon-rich, nitrogen-containing feed fraction ( | 11-17-2011 |
20120017640 | PROCESS FOR SEPARATING OFF NITROGEN - A process for separating off a nitrogen-rich fraction from a feed fraction containing essentially nitrogen and hydrocarbons, wherein the feed fraction is separated by rectification a nitrogen-rich fraction and a methane-rich fraction, is described. | 01-26-2012 |
20120060553 | NATURAL GAS LIQUEFACTION - The invention relates to a method for liquefying a hydrocarbon-rich feed fraction, preferably natural gas, against a nitrogen refrigeration cycle. A feed fraction is cooled against gaseous nitrogen that is to be warmed, and liquefied against liquid nitrogen that is to be vaporized. The feed fraction is cooled and liquefied in an at least three-stage heat-exchange process. In the first section of the heat-exchange process, the feed fraction is cooled against superheated gaseous nitrogen to the extent that an essentially complete separation of the relatively heavy components is achievable. In the second section, the feed fraction freed from relatively heavy components is partially liquefied against gaseous nitrogen that is to be superheated. In the third section, the feed fraction is liquefied against nitrogen that is to be partially vaporized. | 03-15-2012 |
20120198883 | Method for cooling a single-component or multi-component stream - The invention relates to a method for cooling a single-component or multi-component stream, in particular a hydrocarbon-rich fraction, by indirect heat exchange with the refrigerant mixture of a refrigerant mixture circuit. The refrigerant mixture is compressed in at least two stages and is separated into a lower-boiling refrigerant mixture fraction compressed to the ultimate pressure of the refrigerant mixture circuit and at least one higher-boiling refrigerant mixture fraction compressed to an intermediate pressure. The latter is pumped (P | 08-09-2012 |
20130036737 | POWER GENERATION FROM LOW-TEMPERATURE HEAT - The invention relates to a method for converting heat energy into mechanical energy by means of a Rankine cycle. In the Rankine cycle the circulating working fluid is pumped to a pressure above its critical pressure prior to heat exchange with an external medium. During the heat exchange with the external medium, the working fluid is heated to a temperature above its critical temperature and sufficiently high for the working fluid to expand without partial condensation. The working fluid is then expanded and condensed. The maximum pressure of the working fluid is controlled by means of an expander controllable with regard to the mass flow rate of the working fluid and/or a pump controllable with regard to the mass flow rate of the working fluid. | 02-14-2013 |
20130037120 | METHOD FOR THE COMPRESSION OF BOIL-OFF GAS - The invention relates to a method for compression of boil-off gas produced in the storage of liquefied natural gas (LNG), in which the boil-off gas is compressed in a single-stage or multistage manner and then fed to a further use. The boil-off gas (1) that is to be compressed undergoes a pressure elevation by means of at least one ejector (Y) and then warmed (E2), before being compressed (V) in a single-stage or multistage manner> The motive gas (2) used for the ejector (Y) is a substream of the compressed boil-off gas and/or a gas, the composition of which is substantially identical to or similar to that of the boil-off gas (1) and/or the addition of which to the boil-off gas does not adversely affect the intended use of the compressed boil-off gas. | 02-14-2013 |
20140060111 | PROCESS FOR LIQUEFYING A HYDROCARBON-RICH FRACTION - Described herein is a process for liquefying a hydrocarbon-rich fraction, in particular natural gas, is described, in which
| 03-06-2014 |
20140182331 | INTEGRATED PROCESS FOR NGL (NATURAL GAS LIQUIDS RECOVERY) AND LNG (LIQUEFACTION OF NATURAL GAS) - The invention relates to an integrated process and apparatus for liquefaction of natural gas and recovery of natural gas liquids. In particular, the improved process and apparatus reduces the energy consumption of a Liquefied Natural Gas (LNG) unit by using a portion of the already cooled overhead vapor from a fractionation column from an NGL (natural gas liquefaction) unit to, depending upon composition, provide, for example, reflux for fractionation in the NGL unit and/or a cold feed for the LNG unit, or by cooling, within the NGL unit, a residue gas originating from a fractionation column of the NGL unit and using the resultant cooled residue gas to, depending upon composition, provide, for example, reflux/feed for fractionation in the NGL and/or a cold feed for the LNG unit, thereby reducing the energy consumption of the LNG unit and rendering the process more energy-efficient. | 07-03-2014 |
20150013380 | METHOD FOR SEPARATING OFF ACID GASES FROM NATURAL GAS - A method is provided for separating off acid gases, in particular CO | 01-15-2015 |
20150052938 | COMBINED REMOVAL OF HEAVIES AND LIGHTS FROM NATURAL GAS - A process is described for removing heavies and lights from a hydrocarbon-rich feed fraction. A heavies-rich liquid is rectificatorily removed (1st removal stage) from a partially condensed feed fraction. Heavies-depleted gas is partially condensed and rectificatorily separated into a methane-rich liquid fraction and a lights-rich gas fraction (2nd removal stage). The 1st removal stage is operated at a pressure of at least 25 bar. The heavies-depleted gas fraction does not undergo pressure elevation before being fed into the 2nd removal stage. Reflux for the 2nd removal stage is produced via an open loop refrigeration cycle. Refrigerant circulating in the open loop refrigeration cycle is vaporized to two different temperature levels against the reflux streams in a head condenser and a side condenser of the 2nd removal stage. The pressure of refrigerant vaporized in the side condenser is at least three times the pressure of refrigerant vaporized in the head condenser. | 02-26-2015 |