摘要:
An expander and motor-compressor unit (1) is disclosed. The unit comprises a casing (3) and an electric motor (35) arranged in the casing (3). A compressor (37) is arranged in the casing and drivingly coupled to the electric motor (35) through a central shaft (5). Furthermore, a turbo-expander (27) is arranged for rotation in the casing (3) and is drivingly coupled to the electric motor (35) and to the compressor (37) through the central shaft (5).
摘要:
Provided is a natural gas processing facility for the liquefaction or regasification of natural gas. The facility includes a primary processing unit, e.g., refrigeration unit, for warming natural gas or chilling natural gas to at least a temperature of liquefaction. The facility also has superconducting electrical components integrated into the facility. The superconducting electrical components incorporate superconducting material so as to improve electrical efficiency of the facility by at least one percent over what would be experienced through the use of conventional electrical components. The superconducting electrical components may be one or more motors, one or more generators, one or more transformers, switch gears, one or more electrical transmission conductors, variable speed drives, or combinations thereof.
摘要:
The present invention relates to a method for liquefying hydrogen, the method comprises the steps of: cooling a feed gas stream comprising hydrogen with a pressure of at least 15 bar(a) to a temperature below the critical temperature of hydrogen in a first cooling step yielding a liquid product stream. According to the invention, the feed gas stream is cooled by a closed first cooling cycle with a high pressure first refrigerant stream comprising hydrogen, wherein the high pressure first refrigerant stream is separated into at least two partial streams, a first partial stream is expanded to low pressure, thereby producing cold to cool the precooled feed gas below the critical pressure of hydrogen, and compressed to a medium pressure, and wherein a second partial stream is expanded at least close to the medium pressure and guided into the medium pressure first partial stream.
摘要:
The present invention relates to a refrigerant composition comprising neon and hydrogen. The present invention further relates to the use of the refrigerant composition in liquefying gaseous substances such as hydrogen or helium.
摘要:
The present invention relates to a refrigerant composition. According to the invention it is envisioned that the composition comprises comprising an inert gas selected from nitrogen, argon, neon and a mixture thereof, and a mixture of at least two C 1 -C 5 hydrocarbons. The present invention further relates to the use of the refrigerant composition in a method for liquefying a gaseous substance, particularly hydrogen or helium.
摘要:
Systems and methods are provided for sidestream mixing. The system may include a first junction formed from a plurality of conduits. The plurality of conduits may include a first conduit fluidly coupled to a compressor, the first conduit forming a first conduit diameter and configured to flow therethrough a first process fluid stream of a plurality of process fluid streams. The plurality of conduits may also include a second conduit fluidly coupled to the first conduit and the compressor, and configured to flow therethrough a second process fluid stream of the plurality of process fluid streams. The first junction may be disposed a first distance at least three times the first conduit diameter upstream of the compressor, such that the first process fluid stream and the second process fluid stream are mixed and form a first combined process fluid stream prior to being fed into and pressurized in the compressor.
摘要:
A plant for liquefying methane gas, comprising: a power section (100) comprising: a molecular filter (2) supplied by a low-pressure methane supply network (1), a compression unit (5) of the methane, connected to the outlet of the filter, destined to supply in outlet a methane main flow (Φ) having a predetermined temperature and pressure, and heat exchangers (11, 12, 13, 14) for cooling the methane crossing the compression unit (5); a first cryogenic section (200) connected to the outlet of the power section (100) by which it is supplied from the main flow (φ) and, in turn, supplying the power section (100) with at least a methane recycling flow (φ 2 , φ 4 , φ 7 ), which supplies the compression unit and which cooperates with the heat exchangers for cooling the compression unit; a second cryogenic section (300) connected to the first cryogenic section (200) in inlet and in outlet by means of channels (19, 22, 24) crossed by the relative methane flows (φ 1 , φ 4 , φ 7 ), the second cryogenic section (300) being destined to liquefy a predetermined amount of the main flow (φ); a storage cryogenic section (400) connected to the second cryogenic section (300) so as to receive therefrom the liquefied methane.
摘要:
Procédé de refroidissement/liquéfaction à basse température d'un gaz de travail à faible masse molaire, le procédé utilisant un premier réfrigérateur/liquéfacteur (1) comprenant une station (2) de compression du gaz de travail et une boîte froide (3) destinée à refroidir le gaz de travail en sortie de la station (2) de compression, le procédé comportant : - une étape de compression, - une étape de refroidissement du gaz de travail comprimé lors de l'étape de compression, l'étape de compression utilisant à la fois des machines de compression du type à vis lubrifiées (EC1, EC2) et de machines de compression de type centrifuge (EC3, EC4), le procédé étant caractérisé en ce que l'étape de compression utilise sélectivement au moins une machine de compression (EC3) appartenant à une station de compression (12) d'un second réfrigérateur/liquéfacteur (11) distinct dudit premier réfrigérateur/liquéfacteur (1), le second réfrigérateur/liquéfacteur (11) utilisant un fluide de travail de même nature que celui du premier réfrigérateur/liquéfacteur (1).
摘要:
In an embodiment, a system for cooling or liquefying a process gas in a motion environment, includes: (a) a separation vessel, wherein the separation vessel includes motion suppressing baffles, wherein the separation vessel separates a high pressure refrigerant stream thereby producing a vapor refrigerant stream and a liquid refrigerant stream; (b) a vapor liquid refrigerant pipe for delivering the liquid refrigerant stream from the separation vessel to an external heat exchanger core; (c) at least one external heat exchanger core, wherein the external heat exchanger core is external to a kettle, wherein the liquid refrigerant stream and a warmer process stream undergo indirect heat exchange in the external heat exchanger core thereby producing a cooled process stream and a vaporized refrigerant stream.