公开(公告)号：US20240207777A1

公开(公告)日：2024-06-27

申请号：US18146884

申请日：2022-12-27

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Faisal Dagash ALBOQAMI

IPC: B01D53/14 ,  B01D19/00

CPC classification number: B01D53/1425 ,  B01D19/0005 ,  B01D53/1456 ,  B01D53/1493 ,  B01D2252/20421 ,  B01D2252/20484 ,  B01D2257/304 ,  B01D2257/504

Abstract: Absorption of one or more acid gases from a gas stream may take place using diglycolamine as an absorbent. Methods for processing the absorbent after acid gas absorption may comprise: obtaining an at least partially spent aqueous amine solution from an absorber tower; removing at least a portion of the one or more acid gases from the at least partially spent aqueous amine solution in a regeneration tower to form an at least partially regenerated aqueous amine solution comprising diglycolamine and bis-(2-hydroxyethoxyethyl)urea; and introducing at least a first portion of the at least partially regenerated aqueous amine solution to a reclaimer under thermal conditions effective to revert at least a majority of the bis-(2-hydroxyethoxyethyl) urea to diglycolamine. The reclaimer is heated with a steam input that is in indirect contact with the at least partially regenerated aqueous amine solution and cooled with at least a diglycolamine stream.

公开(公告)号：US20240149210A1

公开(公告)日：2024-05-09

申请号：US18388142

申请日：2023-11-08

Applicant: Stephen M. Mosher

Inventor： Stephen M. Mosher

IPC: B01D53/14 ,  B01D53/18 ,  B01D53/34 ,  B01D53/56 ,  B01D53/62 ,  B01D53/78 ,  C02F1/50

CPC classification number: B01D53/1456 ,  B01D53/1412 ,  B01D53/1493 ,  B01D53/185 ,  B01D53/346 ,  B01D53/56 ,  B01D53/62 ,  B01D53/78 ,  C02F1/505 ,  B01D2251/21 ,  B01D2252/103 ,  B01D2257/404 ,  B01D2257/502 ,  C02F2103/18 ,  C02F2303/04

Abstract: A scrubber system configured to react gas phase nitrogen dioxide and carbon monoxide emissions from process applications in scrubber tower equipment with the use of reducing agent chemistry combined with copper silver ionization.

公开(公告)号：US11857914B2

公开(公告)日：2024-01-02

申请号：US17530029

申请日：2021-11-18

Applicant: University of Kentucky Research Foundation

Inventor： Ayokunle Omosebi ,  Xin Gao ,  Reynolds Frimpong ,  Kunlei Liu

IPC: B01D53/14 ,  B01D53/18

CPC classification number: B01D53/1425 ,  B01D53/1456 ,  B01D53/1493 ,  B01D53/18 ,  B01D2252/10

Abstract: An apparatus for removing an acid gas from a feed gas stream includes an absorber and an electrochemical regenerator. The absorber is adapted for separating the acid gas from the feed gas feed stream using a lean carbon capture solvent. The electrochemical regenerator is connected to the absorber and adapted for (a) regenerating the carbon capture solvent and (b) generating hydrogen gas. A method for removing acid gas from a feed gas stream includes steps of separating, delivering, releasing, generating and returning.

公开(公告)号：US20230321587A1

公开(公告)日：2023-10-12

申请号：US17715666

申请日：2022-04-07

Applicant: The United States of America, as Represented by the Secretary of Agriculture

Inventor： PHILIP A MOORE, JR.

IPC: B01D53/14 ,  B01D47/06 ,  B01D53/18 ,  C02F1/00 ,  B01D53/32 ,  A01K1/00

CPC classification number: B01D53/1406 ,  B01D47/06 ,  B01D53/185 ,  B01D53/1456 ,  C02F1/001 ,  B01D53/1493 ,  B01D53/1425 ,  B01D53/323 ,  B01D53/1412 ,  A01K1/0082 ,  B01D2252/103

Abstract: An air purification and recirculation system positioned within an animal rearing/sheltering facility. The system draws untreated air into an elongated air treatment apparatus having a dust scrubbing section, an ammonia scrubbing section, and acid scrubbing section, configured so that the treatment sections are positioned in series. At the end of the air treatment process, the treated air is exhausted back into the animal rearing facility so that the air is circulated within the facility. Acid and water used during the air treatment process are continuously recycled and directed back through the scrubbers in the air treatment apparatus.

公开(公告)号：US20230279333A1

公开(公告)日：2023-09-07

申请号：US18313089

申请日：2023-05-05

Applicant: Brisa International, LLC

Inventor： Kevin C. Harmon ,  Shannon M. Johnson ,  Eugene T. Holmes

IPC: C12M1/00 ,  B01D53/14 ,  C02F3/34 ,  C12M1/107 ,  C12M3/00 ,  F23J15/02

CPC classification number: C12M43/04 ,  C12M43/02 ,  B01D53/1456 ,  B01D53/1493 ,  C02F3/34 ,  C12M21/04 ,  C12M23/36 ,  C12M23/44 ,  F23J15/02 ,  B01D2257/708 ,  Y02P20/59 ,  B01D53/62

Abstract: A system comprising a collocated thermal plant, water source, CO2 source and biomass growth module is disclosed. A method of improving the environment by utilizing the system is disclosed.

公开(公告)号：US20230183068A1

公开(公告)日：2023-06-15

申请号：US18165513

申请日：2023-02-07

Applicant: Jennifer Bugayong Luna ,  Atul M. Athalye ,  Ce Ma ,  Ashwini K. Sinha

Inventor： Jennifer Bugayong Luna ,  Atul M. Athalye ,  Ce Ma ,  Ashwini K. Sinha

IPC: C01B23/00 ,  B01D53/00 ,  B01D53/04 ,  B01D53/14

CPC classification number: C01B23/0094 ,  B01D53/005 ,  B01D53/0462 ,  B01D53/1431 ,  B01D53/1456 ,  C01B23/0021 ,  C01B23/0057 ,  C01B23/0078 ,  C01B23/0089 ,  B01D2253/1122 ,  B01D2257/11 ,  B01D2257/2047 ,  B01D2257/2066 ,  B01D2257/502 ,  B01D2257/504 ,  B01D2257/80 ,  C01B2210/0004 ,  C01B2210/0021 ,  C01B2210/0025 ,  C01B2210/0035 ,  C01B2210/0037 ,  C01B2210/005 ,  C01B2210/0056 ,  C01B2210/0068 ,  C01B2210/0098

Abstract: Novel methods for pretreating a rare-gas-containing stream exiting an etch chamber followed by recovering the rare gas from the pre-treated, rare-gas containing stream are disclosed. More particularly, the invention relates to the pretreatment and recovery of a rare gas, such as xenon or krypton, from a nitrogen-based exhaust stream with specific gaseous impurities generated during an etch process that is performed as part of a semiconductor fabrication process.

公开(公告)号：US20190105599A1

公开(公告)日：2019-04-11

申请号：US15971643

申请日：2018-05-04

Applicant: Chevron U.S.A. Inc.

Inventor： Nitesh Bhuwania ,  Shabbir Husain ,  Daniel Chinn ,  Ronald P. MacDonald ,  Tapan K. Das

IPC: B01D53/14 ,  C10L3/10 ,  E21B43/34

CPC classification number: B01D53/1468 ,  B01D53/1456 ,  B01D53/226 ,  B01D53/229 ,  B01D53/265 ,  B01D2252/204 ,  B01D2256/24 ,  B01D2257/304 ,  C10L3/103 ,  C10L3/106 ,  C10L2290/10 ,  C10L2290/548 ,  E21B43/34

Abstract: Disclosed are systems and methods for producing oil and gas in a plant while removing hydrogen sulfide and water from fluids produced from oil and gas reservoirs and injecting a sour gas stream containing the hydrogen sulfide into an underground formation. Water-selective membranes are used to debottleneck known systems and methods by removing water from bottlenecked sections of the plant including pretreatment of a sour gas feed to one or more gas processing plants. In other aspects, water-selective membranes are used to debottleneck the pretreatment of an acid gas feed to a Claus unit to convert hydrogen sulfide to sulfur in a gas processing plant. The water-selective membranes pretreat the acid gas feed.

公开(公告)号：US20190039014A1

公开(公告)日：2019-02-07

申请号：US16153104

申请日：2018-10-05

Applicant: BATTELLE MEMORIAL INSTITUTE

Inventor： Phillip K. Koech ,  Deepika Malhotra ,  David J. Heldebrant ,  Vassiliki-Alexandra Glezakou ,  Roger J. Rousseau ,  David C. Cantu

IPC: B01D53/14

CPC classification number: B01D53/1425 ,  B01D53/1456 ,  B01D53/1493 ,  B01D2252/2041 ,  B01D2252/20426 ,  B01D2252/20431 ,  B01D2252/20457 ,  B01D2257/302 ,  B01D2257/308 ,  B01D2257/504

Abstract: A class of water lean, organic solvents that can bind with various acid gasses to form acid gas bound molecules having a high degree of intramolecular hydrogen bonding which enables their use as regenerable solvents for acid gas capture. Unlike the other devices described in the prior art, the present invention takes advantage of shortened distances between the portions of the molecule that form hydrogen bonds within the structures when loaded with an acid gas so as to create a molecule with a higher internal bonding affinity and a reduced proclivity for agglomeration with other molecules.

公开(公告)号：US20180345206A1

公开(公告)日：2018-12-06

申请号：US16058395

申请日：2018-08-08

Applicant: Research Triangle Institute

Inventor： Marty Lail ,  Luke Coleman

IPC: B01D53/14 ,  B01D53/50 ,  B01D53/56 ,  B01D53/62 ,  B01D53/78 ,  B01D53/48

CPC classification number: B01D53/1456 ,  B01D53/1425 ,  B01D53/1475 ,  B01D53/1493 ,  B01D53/485 ,  B01D53/507 ,  B01D53/56 ,  B01D53/62 ,  B01D53/78 ,  B01D2252/204 ,  B01D2252/205 ,  B01D2252/30 ,  B01D2252/504 ,  B01D2257/302 ,  B01D2257/308 ,  B01D2257/404 ,  B01D2257/504 ,  B01D2258/0283

Abstract: A solvent system for the removal of acid gases from mixed gas streams is provided. Also provided is a process for removing acid gases from mixed gas streams using the disclosed solvent systems. The solvent systems may be utilized within a gas processing system.

公开(公告)号：US20180318755A1

公开(公告)日：2018-11-08

申请号：US16036411

申请日：2018-07-16

Applicant: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC ,  The Board of Trustees of the University of Illinoi

Inventor： Roger D. Aines ,  Christopher M. Spadaccini ,  Joshuah K. Stolaroff ,  William L. Bourcier ,  Jennifer A. Lewis ,  Eric B. Duoss ,  John J. Vericella

IPC: B01D53/14 ,  B01D53/22 ,  B01J20/32

CPC classification number: B01D53/1475 ,  B01D53/1425 ,  B01D53/1456 ,  B01D53/1468 ,  B01D53/1481 ,  B01D53/229 ,  B01D2252/102 ,  B01D2252/20421 ,  B01D2252/20426 ,  B01D2252/20431 ,  B01D2252/20484 ,  B01D2252/602 ,  B01D2258/0283 ,  B01J20/324 ,  B01J20/3244 ,  B01J20/327 ,  B01J20/3295 ,  Y02C10/04 ,  Y02C10/06 ,  Y02C10/08 ,  Y02C20/10

Abstract: Method and apparatus for separating a target substance from a fluid or mixture. Capsules having a coating and stripping solvents encapsulated in the capsules are provided. The coating is permeable to the target substance. The capsules having a coating and stripping solvents encapsulated in the capsules are exposed to the fluid or mixture. The target substance migrates through the coating and is taken up by the stripping solvents. The target substance is separated from the fluid or mixture by driving off the target substance from the capsules.