摘要:
Die Erfindung betrifft eine Vorrichtung (26) zum Verflüssigen wenigstens eines Gases, mit: - wenigstens einem Eintritt (30), über welchen das unter Druck stehende Gas in die Vorrichtung (26) einleitbar ist; - wenigstens einem Gegenstrom-Wärmetauscher (32), welcher wenigstens einen über den Eintritt (30) mit dem unter Druck stehenden Gas versorgbaren und in eine erste Richtung von dem Gas durchströmbaren ersten Kanal (34) aufweist, - wenigstens einer Expansionsdüse (36), in welche der erste Kanal (34) mündet, sodass das von dem ersten Kanal (34) in die Expansionsdüse (36) strömende, die Expansionsdüse (36) durchströmende und aus der Expansionsdüse (36) ausströmende Gas mittels der Expansionsdüse (36) unter Bildung eines eine gasförmige Phase und flüssige Tropfen umfassenden Aerosols expandierbar ist; - einen Aerosolbrecher (38), mittels welchem zumindest ein Teil der Tropfen von der gasförmigen Phase abscheidbar ist; - einen Sammelbereich (40) zum Auffangen und Sammeln der von dem Aerosolbrecher (38) abtropfenden Tropfen; und - einen den ersten Kanal (34) umgebenden zweiten Kanal (42) des Gegenstrom-Wärmetauschers (32), wobei der zweite Kanal (42) in eine der ersten Richtung entgegengesetzte zweite Richtung von der gegenüber dem Gas entspannten und kälteren und aus der Expansionsdüse (36) ausströmenden gasförmigen Phase durchströmbar ist und den ersten Kanal (34) umgibt, wobei die Vorrichtung (26) einstückig ausgebildet ist.
摘要:
Plant for the liquefaction of natural gas, comprising a unit (S1A,S1B) for compression of the natural gas; a section (S2) for cooling of the natural gas; and a circuit (S3) for liquefaction which comprises a main line (l)-(2)-(3) traversed by a flow (ml) of gas and whereon a heat exchanger (H-EX) is installed; a secondary line (4) -(5) -(6) which branches off from the main line (l)-(2)-(3) and which comprises a valve (J-T Valve 2) through which a flow (m3) of gas is first laminated to a lower pressure (P3) and then led to traverse said heat exchanger (H-EX), cooling there a transiting flow (m2), difference between (ml) and (m3). Means of regulation and control are provided of the working conditions of subcooling of the flow (m2) of fluid which include a first temperature control valve (TC-Control Valve 1) which regulates the flow (m2) of fluid transiting along said main line (l)-(2)-(3), in relation with the final temperature (T2) required for said fluid, and a second pressure control valve (PC-Control Valve 2) which is installed on the secondary line (4) -(5) -(6) downstream of the valve (J-T Valve 2) and which regulates said secondary flow (m3) on the basis of a pressure (P3) detected on said secondary line (4) -(5) -(6) downstream of said valve (J-T Valve 2).
摘要:
The present invention provides a method of liquefying a contaminated hydrocarbon-containing gas stream: (a) providing a CO2 contaminated hydrocarbon- containing gas stream (20); (b) cooling the contaminated hydrocarbon-containing gas stream to obtain a partially liquefied stream (70); (c) separating the partially liquefied stream obtaining a liquid stream (90); (d) cooling the liquid stream (90) in a direct contact heat exchanger (200) obtaining a multiphase stream (201) containing at least a liquid phase and a solid CO2 phase; (e) separating the multiphase stream in a solid- liquid separator (202) obtaining a CO2 depleted liquid stream (141); (f) passing the CO2 depleted liquid stream (141) to a further cooling, pressure reduction and separation stage to generate a further CO2 enriched slurry stream (206); (g) passing at least part of the further CO2 enriched slurry stream (206) to the direct contact heat exchanger (200) to provide cooling duty to and mix with the liquid stream (90).
摘要:
A method for LNG production, where natural gas is pre-treated in a pre-treatment unit to give a pre-treated gas stream mainly comprising methane, and where compounds potentially solidifying in the liquefaction process are reduced to a level lower than 50 ppm, where the pre-treated gas stream is compressed to a pressure of 100 - 300 bara, where the pre-treated and compressed gas is transferred in a subsea pipeline to a remote floating LNG liquefaction unit, where the gas transferred to the floating LNG liquefaction unit is expanded to a pressure of 40 to 100 bara, and then introduced into a LNG heat exchanger and cooled against a coolant to produce Liquefied Natural Gas (LNG), wherein the gas stream is split in two streams after being expanded and before being introduced into the LNG heat exchanger to give a first split gas stream that is introduced into the LNG heat exchanger, and a second split gas stream that is heated by heat exchanging against the incoming pressurized gas stream for cooling thereof, where the heated second gas stream is transferred to the pre-treatment unit for re-circulation to the remote floating LNG liquefaction unit, and a system using the method, are described.
摘要:
A process of liquefying a natural gas stream in a liquefied natural gas facility is provided. The process includes cooling the natural gas stream in a first refrigeration cycle to produce a cooled natural gas stream. The process also includes cooling the cooled natural gas stream in a first chiller of a second refrigeration cycle, the cooled natural gas stream exiting the first chiller at a first pressure. The process further includes cooling the cooled natural gas stream in a first core of a second chiller of the second refrigeration cycle. The process yet further includes cooling a refrigerant of a refrigerant recycle stream separate from the cooled natural gas stream in a second core of the second chiller of the second refrigeration cycle, wherein the refrigerant recycle stream enters the second chiller at a second pressure that is lower than the first pressure of the cooled natural gas stream.
摘要:
A method of constructing a plate fin heat exchanger includes joining a first side bar formed from a nickel-iron alloy to a first end of a fin element formed from a nickel-iron alloy through a first nickel-iron alloy bond, and joining a second side bar formed from a nickel-iron alloy to a second end of the fin element through a second nickel-iron alloy bond to create a first layer of the plate fin heat exchanger. The fin element defines a fluid passage.
摘要:
A method for producing electrical energy in a combined energy generation plant (100, 200) which comprises an air treatment unit (10) and a power station unit (20) is proposed. In a first operating mode, air (AIR) is liquefied to form an air liquefaction product (LAIR) and, in a second operating mode, an air liquefaction product (LAIR) is converted into a gaseous or supercritical state, in which said product is introduced into the power station unit (20) and is used for producing electrical energy. In a third operating mode, air (AIR) is condensed in the air treatment unit (10) and used in the power station unit (20) directly for producing electrical energy. It is envisaged that, in the first operating mode, the air (AIR) is cooled to several temperature levels (T1 - T5) by two liquid coolants and the air liquefaction product (LAIR) is correspondingly heated. In addition, in the first operating mode, the air (AIR) is condensed stepwise over several pressure levels (LP, MP, MP1, HP). In addition, in the second operating mode, the air liquefaction product (LAIR) is heated to a further pressure level (HP1) and introduced into the power station unit (20) at this pressure level in gaseous form. Finally, in the third operating mode, the air (AIR) is introduced into the power station unit (20) in separate batches and at different pressure levels (MP1, HP or HP1). A corresponding energy generation plant (100, 200) is likewise the subject matter of the invention.
摘要:
Es wird ein Verfahren zur Gewinnnung von elektrischer Energie in einer kombinierten Energieerzeugungsanlage (100, 200), die eine Luftbehandlungseinheit (10) und eine Kraftwerkseinheit (20) umfasst, vorgeschlagen. Luft (AIR) wird in einem ersten Betriebsmodus zu einem Luftverflüssigungsprodukt (LAIR) verflüssigt und ein Luftverflüssigungsprodukt (LAIR) wird in einem zweiten Betriebsmodus in einen gasförmigen oder überkritischen Zustand überführt, in welchem es in die Kraftwerkseinheit (20) eingeleitet und zur Gewinnung von elektrischer Energie verwendet wird. Luft (AIR) wird in einem dritten Betriebsmodus in der Luftbehandlungseinheit (10) verdichtet und in der Kraftwerkseinheit (20) direkt zur Gewinnung von elektrischer Energie verwendet. Es ist vorgesehen, die Luft (AIR) in dem ersten Betriebsmodus durch zwei flüssige Kältemittel auf mehreren Temperaturniveaus (T1 - T5) abzukühlen und das Luftverflüssigungsprodukt (LAIR) entsprechend zu erwärmen. Ferner wird die Luft (AIR) in dem ersten Betriebsmodus stufenweise über mehrere Druckniveaus (LP, MP, MP1, HP) verdichtet. Ferner wird das Luftverflüssigungsprodukt (LAIR) in dem zweiten Betriebsmodus auf einem weiteren Druckniveau (HP1 ) erwärmt und unter diesem gasförmig in in die Kraftwerkseinheit (20) eingeleitet. Schließlich wird die Luft (AIR) in dem dritten Betriebsmodus in getrennten Teilen und bei unterschiedlichen Druckniveaus (MP1, HP oder HP1 ) in die Kraftwerkseinheit (20) eingeleitet. Eine entsprechende Energieerzeugungsanlage (100, 200) ist ebenfalls Gegenstand der Erfindung.
摘要:
The present invention provides a method of liquefying a contaminated hydrocarbon-containing gas stream, the method comprising at least the steps of: (a) providing a contaminated hydrocarbon-containing gas stream (20); (b) cooling the contaminated hydrocarbon-containing gas stream (20) in a first heat exchanger (3) thereby obtaining a cooled contaminated hydrocarbon-containing stream (40); (c) cooling the cooled contaminated hydrocarbon- containing stream (40) in an expander (4) thereby obtaining a partially liquefied stream (70); (d) separating the partially liquefied stream (70) in a separator (5) thereby obtaining a gaseous stream (80) and a liquid stream (90); (e) expanding the liquid steam (90) obtained in step (d) thereby obtaining a multiphase stream (100), the multiphase stream (100) containing at least a vapour phase, a liquid phase and a solid phase; (f) separating the multiphase stream (100) in a separator (7) thereby obtaining a gaseous stream (110) and a slurry stream (120); (g) separating the slurry stream (120) in a solid/liquid separator (9) thereby obtaining a liquid hydrocarbon stream (170) and a concentrated slurry stream (140); (h) passing the gaseous stream (80) obtained in step (d) through the first heat exchanger (3) thereby obtaining a heated gaseous stream (270); and (i) compressing the heated gaseous stream (270) thereby obtaining a compressed gas stream (220); and (j) combining the compressed gas stream (220) obtained in step (i) with the contaminated hydrocarbon-containing gas stream (20) provided in step (a).