公开(公告)号：US12129170B2

公开(公告)日：2024-10-29

申请号：US17712551

申请日：2022-04-04

申请人： Casale SA

发明人： Iacopo Cerea ,  Jean Francois Granger

IPC分类号： C01B21/28 ,  B01D53/14 ,  B01D53/56 ,  B01D53/78 ,  C01B21/46

CPC分类号： C01B21/46 ,  B01D53/1493 ,  B01D53/56 ,  B01D53/78 ,  C01B21/28 ,  B01D2252/103 ,  B01J2219/00024

摘要： A dual-pressure plant for the synthesis of nitric acid comprising: a reactor (4) providing a gaseous effluent (15) containing nitrogen oxides; an absorption tower (6) nitrogen oxides react with water providing raw nitric acid and, said absorption tower operating at a pressure greater than the pressure of the reactor; a compressor (5) elevating the pressure of the reactor effluent (15) to the absorption pressure; said plant also comprising a first bleacher (37) and a second bleacher (7), said first bleacher (37) stripping with air (39) nitrogen oxides from the output stream (27) of the absorption tower (6) providing a partially stripped nitric acid stream (40) and a nitrogen oxides-loaded air stream (41), the former being fed to the second bleacher (7) and the latter being recycled to the delivery-side of said compressor (5).

公开(公告)号：US20240350972A1

公开(公告)日：2024-10-24

申请号：US18645286

申请日：2024-04-24

申请人： Calcarea, Inc.

发明人： Jess Firey Adkins ,  Pierre Forin ,  Melissa Gutierrez

IPC分类号： B01D53/78 ,  B01D53/14 ,  B01D53/18 ,  B01D53/50 ,  B01D53/62 ,  B01D53/75

CPC分类号： B01D53/78 ,  B01D53/1475 ,  B01D53/1493 ,  B01D53/18 ,  B01D53/501 ,  B01D53/62 ,  B01D53/75 ,  B01D2251/404 ,  B01D2251/606 ,  B01D2252/1035 ,  B01D2257/302 ,  B01D2257/504 ,  B01D2259/4566

摘要： Many embodiments are directed to reactors and methods for reducing ship exhaust polluting emissions. Many such embodiments are directed to reactors implementing accelerated weathering of limestone (AWL) for carbon dioxide sequestration. Certain embodiments may also be used to mitigate high acidity of SOx scrubber effluents, while some embodiments solve both issues (i.e., seawater acidification and carbon dioxide pollution). Many embodiments are implemented on cargo ships (e.g., container ships and/or bulk carriers) and use seawater. Certain embodiments can utilize effluent from one or more SOx scrubbers as the source of seawater to decarbonize and/or neutralize water prior to being safely and permanently stored in the ocean.

公开(公告)号：US20240342651A1

公开(公告)日：2024-10-17

申请号：US18747932

申请日：2024-06-19

申请人： Stephen R. Temple ,  Howard Everett Whitney ,  Bjorn Temple

发明人： Stephen R. Temple ,  Howard Everett Whitney ,  Bjorn Temple

IPC分类号： B01D53/78 ,  B01D47/05 ,  B01D47/10 ,  B01D53/00 ,  B01D53/75 ,  B03C3/017 ,  B03C3/04 ,  B03C3/16 ,  B03C5/02 ,  B03C7/02 ,  B03C11/00 ,  F23G7/06 ,  F23J15/00 ,  F23J15/02

CPC分类号： B01D53/78 ,  B01D53/002 ,  B01D53/75 ,  B03C3/017 ,  B03C3/04 ,  B03C3/16 ,  B03C5/02 ,  B03C7/02 ,  B03C11/00 ,  F23G7/06 ,  F23J15/006 ,  F23J15/022 ,  B01D47/05 ,  B01D47/10 ,  B01D2247/10 ,  B01D2251/106 ,  B01D2251/108 ,  B01D2257/304 ,  B01D2257/406 ,  B01D2257/70 ,  B01D2257/708 ,  B01D2257/80 ,  B01D2257/90 ,  B01D2257/93 ,  F23J2217/102 ,  F23J2219/40 ,  F23J2219/70

摘要： A method for removing noxious, hazardous, toxic, mutagenic, and/or carcinogenic compounds and/or precursor compounds from a comingled gas, liquid, and/or solid stream is described. In one embodiment, the method is used to prepare the stream for feeding to an oxidizer, such as a thermal oxidizer, to reduce the amount of particulate matter discharged by the oxidizer and includes passing the stream through an ambient or chilled temperature condenser followed by an optional gas/solid separator, and one or more gas scrubbers prior to feeding to the oxidizer.

公开(公告)号：US12109529B2

公开(公告)日：2024-10-08

申请号：US16635302

申请日：2018-10-24

申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

发明人： Takuya Hirata ,  Hiroshi Tanaka ,  Masayuki Inui ,  Shinya Kishimoto

IPC分类号： B01D53/78 ,  B01D47/06 ,  B01D53/50 ,  B01D53/62 ,  B01D53/96

CPC分类号： B01D53/78 ,  B01D47/06 ,  B01D53/507 ,  B01D53/62 ,  B01D53/96 ,  B01D2247/08 ,  B01D2247/106

摘要： An air pollution control unit is configured to bring particle-containing gas and washing liquid into contact with each other to collect particles in the particle-containing gas. The air pollution control unit includes a gas washing column having a gas cleaning section in which the particle-containing gas and the washing liquid are brought into co-current contact with each other, a gas cooling column disposed downstream of the gas washing column along the gas flow and having a gas cooling section in which the particle-containing gas that has been cleaned (cleaned gas) and cooling liquid are brought into countercurrent contact with each other, and a gas communication path.

公开(公告)号：US20240278174A1

公开(公告)日：2024-08-22

申请号：US18568606

申请日：2022-06-09

申请人： EQUINOR ENERGY AS

发明人： Gelein DE KOEIJER ,  Eivind JOHANNESSEN

IPC分类号： B01D53/34 ,  B01D53/14 ,  B01D53/62 ,  B01D53/78 ,  B01D53/96

CPC分类号： B01D53/343 ,  B01D53/1425 ,  B01D53/1475 ,  B01D53/62 ,  B01D53/78 ,  B01D53/96 ,  B01D2251/304 ,  B01D2251/306 ,  B01D2251/604 ,  B01D2252/30

摘要： The invention provides the use of hydroxide ions as a heat source in a CO2 absorption process.

公开(公告)号：US12053738B2

公开(公告)日：2024-08-06

申请号：US17537654

申请日：2021-11-30

申请人： ExxonMobil Technology and Engineering Company ,  BASF

发明人： Carla S. Pereira ,  Michael Siskin ,  Thomas Ingram ,  Gerald Vorberg ,  Martin Ernst

IPC分类号： B01D53/52 ,  B01D53/14 ,  B01D53/18 ,  B01D53/78 ,  C10L3/10

CPC分类号： B01D53/1493 ,  B01D53/1425 ,  B01D53/1468 ,  B01D53/18 ,  C10L3/10 ,  C10L3/103 ,  B01D2252/204 ,  B01D2252/20431 ,  B01D2252/20478 ,  B01D2252/20489 ,  B01D2257/304 ,  B01D2257/504 ,  C10L2290/542 ,  Y02C20/40

摘要： A process for selectively separating H2S from a gas mixture which also comprises CO2 is disclosed. A stream of the gas mixture is contacted with an absorbent solution comprising one or more amines, alkanolamines, hindered alkanolamines, capped alkanolamines, or mixtures thereof. The H2S/CO2 selectivity of the absorbent solution is preferably greater than about 4.0 for an acid gas loading [mol(CO2+H2S)/mol(amine)] between about 0.2 and about 0.6, and is achieved by reducing pH of the absorbent solution.

公开(公告)号：US12053736B2

公开(公告)日：2024-08-06

申请号：US18090614

申请日：2022-12-29

申请人： COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION

发明人： Graeme Puxty ,  Michael Webster-Gardiner ,  William Conway ,  Qi Yang ,  Robert Bennett ,  Paul Feron

IPC分类号： B01D53/14 ,  B01D53/62 ,  B01D53/78 ,  B01D53/96

CPC分类号： B01D53/1425 ,  B01D53/1475 ,  B01D53/1493 ,  B01D53/62 ,  B01D53/78 ,  B01D53/96 ,  B01D2252/20421 ,  B01D2252/20457 ,  B01D2257/504

摘要： The invention provides a process for regenerating a liquid absorbent, comprising: contacting the liquid absorbent with a hydrophobic medium, wherein the liquid absorbent comprises at least one amine of Formula (I) and degradation product thereof comprising at least one imine of Formula (II), wherein each Ar is independently an aromatic group and each R is independently selected from hydrogen, an organyl group and NH2; and selectively extracting the degradation product into or through the hydrophobic medium.

公开(公告)号：US20240252973A1

公开(公告)日：2024-08-01

申请号：US18006515

申请日：2022-08-25

申请人： LOWCARBON CO., LTD

发明人： Bong Kwan SONG ,  Ha Eun JUNG

IPC分类号： B01D47/02 ,  B01D53/14 ,  B01D53/78

CPC分类号： B01D47/02 ,  B01D53/1475 ,  B01D53/78

摘要： The cascaded apparatus includes a cascaded flow path assembly having a plurality of partition plates and having an internal flow path that has a zigzag shape, an air suction portion connected to a lower first side of the cascaded flow path assembly and configured to intake surrounding air, a mixture solution storage portion which is provided at a lower portion of the cascaded flow path assembly and which stores a basic alkali mixture solution of specific components capturing carbon dioxide in air by being in contact with air so that a chemical reaction occurs, and an air discharge portion provided at the upper portion of the cascaded flow path assembly and configured to discharge remaining air which passes through the internal flow path and in which carbon dioxide is removed to a portion around the air discharge portion.

公开(公告)号：US12042765B2

公开(公告)日：2024-07-23

申请号：US17722036

申请日：2022-04-15

申请人： The Regents of the University of California

发明人： Dante Simonetti ,  David Jassby ,  Gaurav Sant ,  Yenwen Tseng

IPC分类号： B01D53/96 ,  B01D15/36 ,  B01D53/62 ,  B01D53/78

CPC分类号： B01D53/965 ,  B01D15/363 ,  B01D53/62 ,  B01D53/78 ,  B01D2252/20447 ,  B01D2252/20484 ,  B01D2257/504 ,  B01D2258/0283 ,  B01D2258/06

摘要： Disclosed herein are methods of electrochemically enhanced amine-based CO2 capture and systems for performing the methods of amine-based CO2 capture. The present methods and systems advantageously may be carried out at ambient temperatures and allow for reusing the amine through multiple cycles.

公开(公告)号：US20240218474A1

公开(公告)日：2024-07-04

申请号：US18610218

申请日：2024-03-19

申请人： Nucor Corporation

发明人： Mirmohammadyousef Motamedhashemi

IPC分类号： C21B11/10 ,  B01D53/62 ,  B01D53/75 ,  B01D53/78 ,  C21B5/00

CPC分类号： C21B11/10 ,  B01D53/62 ,  B01D53/75 ,  B01D53/78 ,  C21B5/001 ,  B01D2257/504 ,  B01D2258/025 ,  C21B2005/005

摘要： A system and method of direct reduction of iron (DRI) is disclosed, having a reduction unit configured to reduce iron oxides to metallic iron; a process gas heater coupled to the reduction unit, the process gas heater configured to supply the reduction unit directly with a source of heated reducing gas, where the process gas heater is further configured to receive a synthetic combustion air stream for heating the reducing gas, the synthetic combustion air stream comprising a source of oxygen with essentially no nitrogen. A method of carbon dioxide emission reduction from a direct reduction of iron (DRI) process is also disclosed.