公开(公告)号：US12117240B2

公开(公告)日：2024-10-15

申请号：US17868167

申请日：2022-07-19

申请人： L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude

发明人： Michael A. Turney ,  Alain Guillard

IPC分类号： F25J3/00 ,  F25J3/04

CPC分类号： F25J3/044 ,  F25J2215/50

摘要： A process for the production of a liquid oxygen stream by the cryogenic rectification of an inlet air stream, including dividing the inlet air stream into a first portion, and a second portion. Cooling the first portion, and the second portion against a cooled multicomponent refrigerant circuit, thereby producing a first cooled portion, and a second cooled portion. Condensing the first cooled portion, thereby producing a condensed first portion, then introducing the condensed first portion into one or more distillation columns. Expanding the second cooled portion in a turbo-expander, thereby producing an expanded second portion, then introducing the expanded second portion within the one or more distillation columns. Producing within the one or more distillation columns at least a waste nitrogen stream, a nitrogen enriched stream, and an oxygen enriched stream. Withdrawing the oxygen enriched stream from the one or more distillation columns as a liquid oxygen stream.

公开(公告)号：US11976878B2

公开(公告)日：2024-05-07

申请号：US17713710

申请日：2022-04-05

申请人： L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude

发明人： Michael A. Turney ,  Alain Guillard

IPC分类号： F25J1/00 ,  F01D15/00 ,  F28D7/00

CPC分类号： F25J1/0017 ,  F01D15/005 ,  F25J1/0072 ,  F28D7/0075 ,  F05D2220/30 ,  F05D2260/213

摘要： A system and method for cooling an oxygen stream by heat exchange with a warming supply nitrogen stream having of a heat exchanger having at least a Zone A and a Zone B, the system having indirect heat exchange between a gaseous oxygen stream, and a high-pressure liquid nitrogen stream split into at least a first portion which passes through a Zone A, and a second portion which passes through a Zone B during a first phase of operation. And a high-pressure liquid nitrogen stream passing through Zone A, thereby producing a high-pressure nitrogen vapor stream, which passes through an expansion turbine, thereby producing an expansion turbine outlet stream which then passes through Zone B, during a second phase of operation, thereby producing a liquid oxygen stream.

公开(公告)号：US11834333B2

公开(公告)日：2023-12-05

申请号：US17236751

申请日：2021-04-21

申请人： L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude

发明人： Michael A. Turney ,  Alain Guillard ,  Joseph T. Stroffolino, IV

IPC分类号： C01B3/02 ,  C01C1/04 ,  F25J1/00

CPC分类号： C01B3/025 ,  C01C1/0423 ,  F25J1/0015 ,  F25J1/0035 ,  C01B2203/0233 ,  C01B2203/068 ,  C01B2203/1623 ,  C01B2203/1633 ,  F25J2215/10 ,  F25J2230/30 ,  F25J2240/04

摘要： A method of co-producing liquid hydrogen and ammonia, including a hydrogen generator, a nitrogen generator, and a HLU is presented. The method includes pressurizing a hydrogen stream from the hydrogen generator in a hydrogen compressor, dividing the pressurized hydrogen into at least a first portion and a second portion, wherein the first portion includes at least part of the flow of a first refrigeration cycle in the HLU, and the second part comprises at least part of the feed to an ammonia plant. The method also includes pressurizing a nitrogen stream from the nitrogen generator in a HP nitrogen compressor, dividing the pressurized nitrogen stream into at least a first part and a second part, wherein the first part comprises at least part of the flow of a second refrigeration cycle in the HLU, and the second part comprises at least part of the feed to the ammonia plant.