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71.发明授权公开(公告)号：US10578357B2
公开(公告)日：2020-03-03
申请号：US16042362
申请日：2018-07-23
Applicant: Kevin J. Saboda , Paul W. Belanger , Richard D. Lenz , Kirk F. Larson , Steven C. Brown , John P. Ricotta , Guang X. Chen , Jeremy D. Faust
Inventor： Kevin J. Saboda , Paul W. Belanger , Richard D. Lenz , Kirk F. Larson , Steven C. Brown , John P. Ricotta , Guang X. Chen , Jeremy D. Faust
Abstract: An annular divided wall column for the cryogenic rectification of air or constituents of air is provided. The annular divided wall column includes a first annular column wall and a second annular column wall disposed within the first annular column wall to define an annulus column region and an interior core column region. The present annular divided wall column further includes structured packing elements disposed within at least the annulus column region as well as a ring-shaped cantilevered collector; and a ring-shaped distributor disposed in the annulus column region above or below the plurality of structured packing elements. The thermal expansion and contraction of the second annular column wall in a radial direction and in an axial direction is independent of the thermal expansion and contraction of the first annular column wall in the radial and axial directions.
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72.发明授权公开(公告)号：US10578356B2
公开(公告)日：2020-03-03
申请号：US16042307
申请日：2018-07-23
Applicant: Kevin J. Saboda , Paul W. Belanger , Richard D. Lenz , Kirk F. Larson , Steven C. Brown , John P. Ricotta , Guang X. Chen , Jeremy D. Faust
Inventor： Kevin J. Saboda , Paul W. Belanger , Richard D. Lenz , Kirk F. Larson , Steven C. Brown , John P. Ricotta , Guang X. Chen , Jeremy D. Faust
Abstract: An annular divided wall column for the cryogenic rectification of air or constituents of air is provided. The annular divided wall column includes a first annular column wall and a second annular column wall disposed within the first annular column wall to define an annulus column region and an interior core column region. The present annular divided wall column further includes structured packing elements disposed within at least the annulus column region as well as a ring-shaped cantilevered collector; and a ring-shaped distributor disposed in the annulus column region above or below the plurality of structured packing elements. The thermal expansion and contraction of the second annular column wall in a radial direction and in an axial direction is independent of the thermal expansion and contraction of the first annular column wall in the radial and axial directions.
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73.发明申请公开(公告)号：US20200054985A1
公开(公告)日：2020-02-20
申请号：US16662193
申请日：2019-10-24
Applicant: David R. Parsnick , Neil M. Prosser , John F. Billingham
Inventor： David R. Parsnick , Neil M. Prosser , John F. Billingham
Abstract: A moderate pressure, argon and nitrogen producing cryogenic air separation unit and air separation cycle having a higher pressure column, a lower pressure column and an argon column arrangement is disclosed. The moderate pressure, argon and nitrogen producing cryogenic air separation unit is configured to take a first portion of an oxygen enriched stream from the lower pressure column, which together with an external source of liquid nitrogen is used as the boiling side refrigerant to condense the argon in the argon condenser. Use of the external source of liquid nitrogen in the argon condenser allows a second portion of the oxygen enriched stream from the lower pressure column to be taken as a liquid oxygen product stream.
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公开(公告)号：US10519962B2
公开(公告)日：2019-12-31
申请号：US16381078
申请日：2019-04-11
Applicant: Henry E. Howard , Carl L. Schwarz , Ahmed F. Abdelwahab , Lee J. Rosen , Nick J. Degenstein , Reh-Lin Chen
Inventor： Henry E. Howard , Carl L. Schwarz , Ahmed F. Abdelwahab , Lee J. Rosen , Nick J. Degenstein , Reh-Lin Chen
Abstract: A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed drive assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed drive assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed drive assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.
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75.发明申请公开(公告)号：US20190331419A1
公开(公告)日：2019-10-31
申请号：US15962297
申请日：2018-04-25
Applicant: James R. Handley , Neil M. Prosser , Brian R. Kromer
Inventor： James R. Handley , Neil M. Prosser , Brian R. Kromer
IPC: F25J3/04
Abstract: A moderate pressure air separation unit and air separation cycle is disclosed that provides for up to about 96% recovery of argon, an overall nitrogen recovery of 98% or greater and limited gaseous oxygen production. The air separation is configured to produce a first high purity oxygen enriched stream and a second lower purity oxygen enriched stream from the lower pressure column, one of which is used as the refrigerant to condense the argon in the argon condenser, with the resulting vaporized oxygen stream used to regenerate the temperature swing adsorption pre-purifier unit. All or a portion of the first high purity oxygen enriched stream is vaporized in the main heat exchanger to produce the gaseous oxygen products.
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Patent Agency Ranking
公开(公告)号：US20190301796A1
公开(公告)日：2019-10-03
申请号：US16307655
申请日：2017-06-02
Applicant: L'Air Liquide, Societe Anonyme pour I'Etude et I'Exploitation des Procedes Georges Claude
Inventor： Patrice CAVAGNE , Benoit DAVIDIAN , Bernard SAULNIER
Abstract: The invention relates to a method for constructing or altering a matter- and/or heat-exchange device, said mass- and/or heat-exchange device comprising an assembly of at least one first and one second stackable modular elements (A, B, C, D, E, F, G, H, I, J, K, L), in which the first element is secured over the second element or the second element is secured below the first element in a sealed manner, such that a fluid can flow from the body of the first element to the body of the second element and/or from the body of the second element to the body of the first element.
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公开(公告)号：US20190293346A1
公开(公告)日：2019-09-26
申请号：US16360277
申请日：2019-03-21
Applicant: United Technologies Corporation
Inventor： Frederick M. Schwarz , Michael Winter
Abstract: A propulsion system includes an electric fan propulsion motor with a plurality of propulsion motor windings. The propulsion system also includes a means for controlling a flow rate of a working fluid through a cryogenic working fluid flow control assembly to the propulsion motor windings.
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公开(公告)号：US10422252B2
公开(公告)日：2019-09-24
申请号：US15252798
申请日：2016-08-31
Applicant: 8 Rivers Capital, LLC
Inventor： Rodney John Allam , Brock Alan Forrest
IPC: F02C3/34 , F01K23/10 , F02C6/18 , F01K23/04 , F01K25/08 , F01K7/16 , F01K25/10 , F02C1/00 , F02C1/06 , F02C1/08 , F25J3/04
Abstract: The present disclosure relates to systems and methods useful for power production. In particular, a power production cycle utilizing CO2 as a working fluid may be combined with a second cycle wherein a compressed CO2 stream from the power production cycle can be heated and expanded to produce additional power and to provide additional heating to the power production cycle.
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79.发明申请公开(公告)号：US20190242646A1
公开(公告)日：2019-08-08
申请号：US16265120
申请日：2019-02-01
Applicant: LINDE AKTIENGESELLSCHAFT
Inventor： Dimitri GOLUBEV
CPC classification number: F25J3/04321 , F25J3/04181 , F25J3/0423 , F25J3/04412 , F25J3/04854 , F25J2200/20 , F25J2200/54 , F25J2200/94 , F25J2230/42 , F25J2230/50 , F25J2230/52 , F25J2235/42 , F25J2245/42 , F25J2250/02
Abstract: The distillation column system has a high-pressure column, a low-pressure column, a main condenser and a low-pressure-column top condenser. Feed air is cooled in a main heat exchanger and introduced into the high-pressure column. An oxygen-enriched liquid stream is withdrawn from the high-pressure column and introduced into the low-pressure column. A gaseous nitrogen stream is withdrawn from the high-pressure column, warmed in the main heat exchanger and withdrawn as gaseous pressurized nitrogen product. The high-pressure column has a barrier-plate section arranged immediately above the point at which the feed air is introduced. The oxygen-enriched liquid stream is withdrawn from the high-pressure column above the barrier-plate section. A purge stream is withdrawn below the barrier-plate section. The gaseous nitrogen stream, before being warmed in the main heat exchanger, is warmed in a counter-current subcooler in indirect heat exchange with the oxygen-enriched liquid stream from the high-pressure column.
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80.发明申请公开(公告)号：US20190234415A1
公开(公告)日：2019-08-01
申请号：US16381078
申请日：2019-04-11
Applicant: Henry E. Howard , Carl L. Schwarz , Ahmed F. Abdelwahab , Lee J. Rosen , Nick J. Degenstein , Reh-Lin Chen
Inventor： Henry E. Howard , Carl L. Schwarz , Ahmed F. Abdelwahab , Lee J. Rosen , Nick J. Degenstein , Reh-Lin Chen
Abstract: A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed drive assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed drive assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed drive assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.
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