公开(公告)号：US11709018B2

公开(公告)日：2023-07-25

申请号：US16958037

申请日：2017-12-25

申请人： Alain Briglia ,  Remy Kurtz ,  Eric Day ,  Huali Xie ,  Baptiste Fara ,  L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

发明人： Alain Briglia ,  Remy Kurtz ,  Eric Day ,  Huali Xie ,  Baptiste Fara

IPC分类号： F25J3/02 ,  F25J3/04

CPC分类号： F25J3/0409 ,  F25J3/04206 ,  F25J3/04303 ,  F25J3/04412 ,  F25J2250/40 ,  F25J2250/50

摘要： A cryogenic air separation setup in a cold box, wherein gaseous oxygen under elevated pressure is produced through hydraulic force caused by the geodetic distance between where liquid oxygen is drawn from the distillation column and where liquid oxygen is vaporized to form gaseous oxygen, such as in an auxiliary evaporator. To increase the vertical distance between the above-mentioned two location, the components are arranged directly below one another in the following sequence: the lower-pressure column, the main condenser evaporator, the higher-pressure column, the subcooler, the main heat exchanger and the auxiliary evaporator). In particular, the main heat-exchanger is positioned with the cold-end on the top to optimize piping expenditure.

公开(公告)号：US12078415B2

公开(公告)日：2024-09-03

申请号：US17630433

申请日：2019-07-26

申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude ,  Alain Briglia ,  Fengjie Xue ,  Jianwei Cao ,  Baptiste Fara

发明人： Alain Briglia ,  Fengjie Xue ,  Jianwei Cao ,  Baptiste Fara

IPC分类号： F25J3/04

CPC分类号： F25J3/04412 ,  F25J3/0409 ,  F25J3/04296 ,  F25J3/04387 ,  F25J2205/02 ,  F25J2240/10 ,  F25J2240/12 ,  F25J2245/40 ,  F25J2245/42

摘要： An apparatus for the separation of air by cryogenic distillation comprises a column system, a heat exchanger, a turbine, means for sending compressed and purified air at a first pressure to be cooled at the first pressure in the heat exchanger, means for sending a first gaseous stream having a nitrogen content at least that of air to be cooled and liquefied or pseudo liquefied in the heat exchanger to form a liquefied stream, means for sending at least part of the liquefied stream to be warmed and vaporized in the heat exchanger to a first intermediate temperature of the heat exchanger to form a vaporized stream, means for removing the vaporized stream from an intermediate section of the heat exchanger, a conduit for sending the vaporized stream to be expanded, in the turbine to form an expanded stream, a conduit for sending at least part of the expanded stream to the column system, a conduit for sending a second gaseous stream having the same nitrogen content as the first stream to be cooled in the heat exchanger, means for removing at least part of the second gaseous stream from an intermediate section of the heat exchanger at a second intermediate temperature and sending the second gaseous stream to the turbine to be expanded with the vaporized stream.