公开(公告)号：US20250025822A1

公开(公告)日：2025-01-23

申请号：US18709439

申请日：2022-10-31

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Aaron C. MCGINNIS ,  Michael G. TRIBO ,  Michael D. LUCAS ,  Richard P. CUTTING ,  Benjamin J. OHRAN

IPC: B01D53/00 ,  B01J8/00

Abstract: Processes for venting gas phase olefin polymerization systems are provided. A portion of the reactor overhead can be withdrawn from the reactor to a vent column and contacted with a liquid stripping medium (L) within the vent column to remove at least a portion of the olefin monomer to produce a vent column overhead (G) and a vent column bottoms; recycling the vent column bottoms (rich in the olefin monomer and lean in the carrier gas) to the reactor; determining a L*N to C*G ratio, wherein L is total liquid stripping medium flow to the vent column, N is carrier gas concentration in the reactor overhead, C is the monomer concentration in the reactor overhead, and G is the vent column overhead gas flow. One or more of these flow streams (L, N, C, G) can then be controlled based on the calculated L*N to C*G ratio.

公开(公告)号：US20250019251A1

公开(公告)日：2025-01-16

申请号：US18715658

申请日：2022-12-02

Applicant: thyssenkrupp Uhde GmbH ,  thyssenkrupp AG

Inventor： Bernd MIELKE ,  Klaus NOELKER ,  Dirk MEURER ,  Tobias BIRWE ,  Bernd KEIL ,  Johannes ELISCHEWSKI ,  Markus TIEGS

IPC: C01C1/04 ,  B01D53/00 ,  B01J8/00 ,  B01J8/06 ,  C25B15/08

Abstract: In a process for operating an ammonia plant, a gas mixture comprising nitrogen, hydrogen and ammonia is conveyed cyclically in a synthesis circuit with a conveying device which comprises at least a first compressor, nitrogen and hydrogen are converted at least partly into ammonia in a converter, the gas mixture is cooled in a cooling device in such a way that ammonia condenses out of the gas mixture, and hydrogen is provided at least partly by electrolysis. In this process, the utilization of fluctuating renewable energies can be integrated into existing plant designs, for the provision of hydrogen; for this reason, a master controller is provided and the master controller keeps at least the pressure in the synthesis circuit approximately constant via at least one control loop, on the basis of the anticipated amount of hydrogen. For this, the apparatus comprises a first bypass line for circumventing the first compressor, and a second bypass line for circumventing the cooling device.

公开(公告)号：US12194404B2

公开(公告)日：2025-01-14

申请号：US17797995

申请日：2021-02-05

Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Doris Sung ,  Mitul Luhar ,  Ivan Bermejo-Moreno

IPC: B01D39/00 ,  B01D46/10 ,  B01D46/24 ,  B01D53/00 ,  B01D53/86 ,  E04F13/08

Abstract: A filtering device for incorporation into an architectural façade panel includes a tubular channel having an inlet section, an outlet section, and a constricted section interposed between and in fluid communication with the inlet section and outlet section. A filtering component is attached to the tubular channel or integrated into a material forming the tubular channel. The filtering device also includes an attachment component for attachment of the filtering device to an architectural structure. The attachment component is adapted to orient the tubular channel with the inlet section positioned to face predetermined prevailing winds when the filtering device is attached to the architectural structure.

公开(公告)号：US12179140B2

公开(公告)日：2024-12-31

申请号：US17293084

申请日：2019-11-14

Applicant: Dürr Systems AG

Inventor： Lars Mast ,  Sven Meyer ,  Lars Ebinger ,  Gerhard Grunwald ,  Nathan Schubring ,  Andreas Keil ,  Jeffrey Quass

IPC: B01D53/00 ,  B01D46/00 ,  B01D53/06 ,  B01D53/30 ,  F25J1/00 ,  G05B19/042 ,  G05B19/418 ,  H04L67/12

Abstract: The present invention relates to a computer-implemented method for monitoring at least one exhaust gas purification system for purifying an exhaust gas stream to be purified of an industrial system or an industrial process. The method comprises retrieving system data of the exhaust gas purification system from a data cloud. The system data stored in the data cloud were at least partially received beforehand by the data cloud from the exhaust gas purification system. The system data relate to at least measurement data of at least one sensor of the exhaust gas purification system and/or data about at least one adjustable parameter of the exhaust gas purification system. The method further comprises determining at least one quantity characterizing the exhaust gas purification system based on the retrieved system data.

公开(公告)号：US12172118B2

公开(公告)日：2024-12-24

申请号：US17165398

申请日：2021-02-02

Applicant: Microjet Technology Co., Ltd.

Inventor： Hao-Jan Mou ,  Yung-Lung Han ,  Chi-Feng Huang ,  Chang-Yen Tsai ,  Wei-Ming Lee ,  Tsung-I Lin ,  Yi-Ting Lu

IPC: A61L9/013 ,  A61L9/014 ,  A61L9/16 ,  A61L9/20 ,  A61L9/22 ,  A62B7/10 ,  B01D46/00 ,  B01D46/46 ,  B01D53/00 ,  B01D53/30 ,  B01D53/32 ,  B03C3/04 ,  B03C3/47 ,  G01N15/06 ,  G01N21/39 ,  G01N33/00 ,  G08B21/12 ,  A61L101/06 ,  G01N15/075

Abstract: A miniature gas detection and purification device is disclosed for a user to carry with him, and includes a main body, a purification module, a gas guider and a gas detection module. The gas detection module detects the gas in the environment surrounding the user to obtain a gas detection datum, and controls the gas guider to be operated according to the gas detection datum, so that gas is inhaled into the main body and flows through the purification module for filtration and purification, and the gas purified is finally guided to an area nearby the user.

公开(公告)号：US12161964B2

公开(公告)日：2024-12-10

申请号：US18247127

申请日：2022-01-28

Applicant: KANKEN TECHNO CO., LTD.

Inventor： Hideharu Ohmae ,  Masamitsu Hagio ,  Hiroshi Imamura

IPC: B01D53/00 ,  B01D53/46 ,  F23G7/06

Abstract: A cylindrical heating unit of an exhaust gas processing device is installed in a reactor. The cylindrical heating unit is provided with an exhaust gas introduction port provided in an insertion base part and a heated exhaust gas outlet provided at insertion end. The cylindrical heating unit includes a hollow cylinder, insulators, electric heaters, and holding members. The hollow cylinder has a double structure with an inner cylinder and an outer cylinder made of metal. A plurality of the insulators surround the inner cylinder and are provided at intervals from each other in a heater installation space between the inner cylinder and the outer cylinder. Electric heaters are mounted to the insulators. The holding members are attached to one of the inner cylinder and the outer cylinder or both and hold the insulators in the heater installation space.

公开(公告)号：US20240399017A1

公开(公告)日：2024-12-05

申请号：US18674717

申请日：2024-05-24

Applicant: Airea, LLC

Inventor： Scott H. Wilson ,  Gary H. Paulsen ,  D. Matthew Puhalla

IPC: A61L9/20 ,  B01D53/00 ,  B01D53/88

Abstract: An air purification unit has an air inlet, an air outlet separated a distance from the air inlet, and an ultraviolet light source positioned along a length of the distance. The air purification unit also has a removable ionization cell comprising an inner surface coated with a catalyst and an outer surface, wherein the removable ionization cell has an unfolded position where the outer surface is substantially flat, and a folded position in which the inner surface is configured to substantially surround the ultraviolet light source.

公开(公告)号：US12145896B2

公开(公告)日：2024-11-19

申请号：US18133495

申请日：2023-04-11

Applicant: Bizzybee LLC

Inventor： Boris David Kogon

IPC: B01D53/00 ,  C07B63/00

Abstract: Techniques and systems for separating components of a mixture of compressed gases each having different boiling points are described. One example system includes multiple recovery stages that each recover one of the gases by condensing it into liquid form. The recovery stages are chained together, such that each stage recovers a gas having a boiling point that is higher than those of the gases to be recovered in downstream stages. Each stage typically includes a warming element that is fluidly coupled to a condenser element that provides a surface cooled to a temperature low enough to condense one of the gases, but high enough such that the remaining gases remain in gaseous form. The system may include an initial evaporator stage that heats a liquid solution of phytochemical extracts and multiple solvents, thereby recovering the extracts and producing the mixture of gaseous solvents.

公开(公告)号：US20240350962A1

公开(公告)日：2024-10-24

申请号：US18136990

申请日：2023-04-20

Applicant: Applied Materials, Inc.

Inventor： Andrea Leoncini ,  Zhijie Chua

IPC: B01D53/00 ,  B01D8/00 ,  B01D53/75

CPC classification number: B01D53/002 ,  B01D8/00 ,  B01D53/75 ,  B01D2221/14 ,  B01D2257/108 ,  B01D2257/11 ,  B01D2258/0216

Abstract: Chemical precursor recovery systems and methods of recovering and reusing semiconductor manufacturing chemistry are disclosed. The recovery systems include a cold trap inlet line in fluid communication with a plurality of cold traps and a cold trap outlet line. The plurality of cold traps is configured to condense the chemical precursors and are arranged based on semiconductor manufacturing process conditions.

公开(公告)号：US20240343578A1

公开(公告)日：2024-10-17

申请号：US18606018

申请日：2024-03-15

Applicant: Arjae Design Solutions Ltd.

Inventor： Ernie MAURIER ,  Daniel Adam SZUSZKIEWICZ ,  Stephen Paul JACKSON ,  Ryan James MEAD

IPC: C01B23/00 ,  B01D53/00 ,  B01D53/047 ,  B01D53/14 ,  B01D53/22 ,  B01D53/26 ,  B01D53/46 ,  C01B32/50 ,  F25J3/02

CPC classification number: C01B23/0094 ,  B01D53/002 ,  B01D53/047 ,  B01D53/1475 ,  B01D53/229 ,  B01D53/26 ,  B01D53/46 ,  C01B32/50 ,  F25J3/029 ,  B01D2251/102 ,  B01D2252/20431 ,  B01D2252/20447 ,  B01D2252/20489 ,  B01D2256/18 ,  B01D2257/102 ,  B01D2257/108 ,  B01D2257/504 ,  B01D2257/702 ,  B01D2257/80 ,  C01B2210/0004 ,  C01B2210/001 ,  C01B2210/0014 ,  C01B2210/0025 ,  C01B2210/0031 ,  C01B2210/0046 ,  C01B2210/0051 ,  C01B2210/0053 ,  C01B2210/0062 ,  C01B2210/007 ,  F25J2205/30 ,  F25J2205/40 ,  F25J2205/64 ,  F25J2205/80 ,  F25J2205/82 ,  F25J2210/20 ,  F25J2215/30 ,  F25J2220/02 ,  F25J2240/40 ,  F25J2270/30 ,  F25J2270/42 ,  F25J2270/58

Abstract: The present provides a helium gas separation and recovery process involving cryogenic fractionation process, which comprises cooling a dehydrated high-pressure gas stream while maintain velocity and pressure of the stream; reducing pressure of the dehydrated high-pressure gas stream via a Joule-Thompson's process to obtain a partially liquefied gas stream; and iii) subjecting the partially liquefied gas stream to at least one gas-liquid separation process to obtain at least one liquid stream and a gaseous stream comprising helium, and a residual amount of the gaseous components; recycling the liquid stream obtained in step iii) for use as cooling refrigerant to cool the dehydrated high-pressure gas stream; and purifying the unrefined helium gas stream using pressure swing adsorption (PSA) and/or membrane separation process to obtain a helium product stream having a purity of 98.0 mole % or more.