公开(公告)号：US20240342686A1

公开(公告)日：2024-10-17

申请号：US18683851

申请日：2022-08-24

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD. ,  The Kansai Electric Power Co., Inc.

Inventor： Hiroshi Tanaka ,  Takuya Hirata ,  Tatsuya Tsujiuchi ,  Takuya Sugiura ,  Takashi Kamijo ,  Tomoki Noborisato

IPC: B01J20/26 ,  B01D53/14 ,  B01D53/18 ,  B01J20/34

CPC classification number: B01J20/262 ,  B01D53/1412 ,  B01D53/1425 ,  B01D53/1468 ,  B01D53/1475 ,  B01D53/1493 ,  B01D53/18 ,  B01J20/3483 ,  B01D2252/20415 ,  B01D2257/304 ,  B01D2257/504 ,  B01D2259/40098

Abstract: A composite amine absorbent that absorbs at least one of CO2 and H2S in a gas includes: (a) a chain monoamine; (b) a diamine containing amino groups having the same number of substituents; (c) a chain diamine containing amino groups having different numbers of substituents; and (d) water.

公开(公告)号：US20230321597A1

公开(公告)日：2023-10-12

申请号：US18188733

申请日：2023-03-23

Applicant: Foremark Performance Chemicals

Inventor： Jonathan R. Bingham ,  Lei Zhang ,  Marlon Orlando Treasure

IPC: B01D53/78 ,  B01D53/14 ,  B01D53/52

CPC classification number: B01D53/52 ,  B01D53/1468 ,  B01D53/1493 ,  B01D53/78 ,  B01D2252/20405 ,  B01D2252/20415 ,  B01D2252/20426 ,  B01D2252/20431 ,  B01D2252/20436 ,  B01D2252/504 ,  B01D2252/602

Abstract: Hydrogen sulfide is removed from a gas stream by bubbling a gas stream having ≥100 ppm hydrogen sulfide through a scavenging mixture. The scavenging mixture includes: 1) at least one sweetener selected from the group consisting of triazines, oxazolidines, hemiacetals, and mixtures thereof, and 2) at least one reaction catalyst selected from the group consisting of dipropyl amine (DPA), diethyl amine (DEA), dimethyl amine (DMA), pyrrole, and mixtures thereof. The scavenging mixture interacts with the hydrogen sulfide to produce a cleaned gas stream having ≤ 5 ppm hydrogen sulfide.

公开(公告)号：US09919262B2

公开(公告)日：2018-03-20

申请号：US15034360

申请日：2014-11-05

Applicant: CANSOLV TECHNOLOGIES INC.

Inventor： Michel Ouimet ,  Mélina Infantino

IPC: B01D53/14 ,  B01D53/50

CPC classification number: B01D53/1481 ,  B01D53/1425 ,  B01D53/1475 ,  B01D53/1493 ,  B01D2252/20 ,  B01D2252/2026 ,  B01D2252/2041 ,  B01D2252/20415 ,  B01D2252/20426 ,  B01D2252/20431 ,  B01D2252/20436 ,  B01D2252/20447 ,  B01D2252/20457 ,  B01D2252/504 ,  Y02A50/2349

Abstract: A process for removing sulfur dioxide from a feed gas stream, which comprises (i) contacting the feed gas stream with an aqueous lean absorbing medium comprising a chemical solvent comprising a regenerable absorbent, a physical solvent, and one or more heat stable salts. The regenerable absorbent is an amine. The ratio of the wt % of the physical solvent over that of the regenerable absorbent is 0.5 to 2.5. The ratio of the wt % of heat stable salts over that of the regenerable absorbent is 0.29 to 0.37. The pH of the lean absorbing medium is 6 or less. With the process SO2 can be selectively removed. When the absorbing medium is stripped, a reduced amount of energy is required as compared to known processes.

公开(公告)号：US20180043300A1

公开(公告)日：2018-02-15

申请号：US15288257

申请日：2016-10-07

Applicant: NRGTEK, INC.

Inventor： Subramanian Iyer

IPC: B01D53/28 ,  B01D53/14 ,  B01D53/26

CPC classification number: B01D53/28 ,  B01D53/1425 ,  B01D53/1462 ,  B01D53/1481 ,  B01D53/1493 ,  B01D53/263 ,  B01D2252/2025 ,  B01D2252/2026 ,  B01D2252/2028 ,  B01D2252/2041 ,  B01D2252/20415 ,  B01D2252/20421 ,  B01D2252/502

Abstract: Methods of reducing the water content of a wet gas are presented. In one case, the method includes exposing the gas to an amine-terminated branched polymer solvent to remove a substantial portion of the water from the wet gas, exposing the diluted solvent to carbon dioxide to phase separate the solvent from the water, and regenerating the solvent for reuse by desorbing the carbon dioxide by the application of heat. In another case, the method includes exposing the gas to a cloud-point glycol solvent to remove a substantial portion of the water from the wet gas, heating the diluted solvent to above a cloud point temperature for the solvent so as to create a phase separation of the solvent from the water so as to regenerate the solvent for reuse, and directing the regenerated solvent to a new supply of wet gas for water reduction.

公开(公告)号：US09855525B2

公开(公告)日：2018-01-02

申请号：US14705937

申请日：2015-05-06

Applicant: Aaron Esser-Kahn

Inventor： Aaron Esser-Kahn ,  Du Nguyen

IPC: B01D53/14 ,  F01K5/00

CPC classification number: B01D53/1425 ,  B01D53/1475 ,  B01D53/1493 ,  B01D2252/202 ,  B01D2252/204 ,  B01D2252/20415 ,  B01D2252/20442 ,  B01D2252/20447 ,  B01D2252/20473 ,  B01D2252/20484 ,  B01D2252/20489 ,  B01D2253/102 ,  B01D2253/106 ,  B01D2253/304 ,  B01D2255/104 ,  B01D2255/106 ,  B01D2255/20761 ,  B01D2255/20776 ,  B01D2256/24 ,  B01D2257/504 ,  B01D2258/0233 ,  B01D2258/0283 ,  B01D2258/06 ,  F01K5/00 ,  Y02A50/2342 ,  Y02C10/04 ,  Y02C10/06

Abstract: The present disclosure provides methods and apparatuses of recovering CO2 from a gas stream. The methods regenerate CO2 with high regeneration efficiencies, thereby lowering the overall energy cost for CO2 capture.

公开(公告)号：US09649618B2

公开(公告)日：2017-05-16

申请号：US14647743

申请日：2012-11-27

Applicant: Shenhua Group Corporation Limited ,  National Institute of Clean-and-Low-Carbon Energy

Inventor： Baodong Wang ,  Zhonghua Zhang ,  Qi Sun

IPC: B01J20/26 ,  B01J20/10 ,  C01B33/154 ,  B01J20/291 ,  B01J20/30 ,  B01J20/22 ,  B01D53/02 ,  B01J20/28

CPC classification number: B01J20/103 ,  B01D53/02 ,  B01D2252/20415 ,  B01D2253/106 ,  B01D2253/20 ,  B01D2253/25 ,  B01D2257/302 ,  B01D2257/304 ,  B01D2257/404 ,  B01D2257/504 ,  B01J20/22 ,  B01J20/261 ,  B01J20/28047 ,  B01J20/291 ,  B01J20/3085 ,  B01J2220/4887 ,  C01B33/1546 ,  Y02C10/08 ,  Y02P20/152

Abstract: The present invention relates to a method for preparing a solid amine gas adsorption material. The method synthesizes a porous solid amine gas adsorption material that loads organic amine evenly. In the method, a certain amount of acidic gas is introduced while organic amine molecules are introduced into a silicate solution as template agents, which not only makes sizes of SiO2 pore channels homogeneous, but also makes organic amine molecules highly evenly distributed on a surface of SiO2. In addition, the acidic gas protects —NH2 groups of organic amine, and avoids —NH2 adhesion inactivation due to hydrogen bonding during the synthesis process of the material. The present invention also relates to a method for preparing a solid amine gas adsorption material after obtaining a silicate solution from fly ash. The solid amine gas adsorption material prepared has more stable and effective gas adsorption performance.

公开(公告)号：US20160375400A1

公开(公告)日：2016-12-29

申请号：US15261262

申请日：2016-09-09

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Robert James Perry ,  Grigorii Lev Soloveichik ,  Malgorzata Iwona Rubinsztajn ,  Michael Joseph O'Brien ,  Larry Neil Lewis ,  Tunchiao Hubert Lam ,  Sergei Kniajanski ,  Dan Hancu

IPC: B01D53/14

CPC classification number: B01D53/1493 ,  B01D53/1475 ,  B01D2252/202 ,  B01D2252/2025 ,  B01D2252/2026 ,  B01D2252/2028 ,  B01D2252/2041 ,  B01D2252/20415 ,  B01D2252/20421 ,  B01D2252/2056 ,  B01D2252/504 ,  F23J2215/50 ,  F23J2219/40 ,  Y02A50/2342 ,  Y02C10/06

Abstract: A carbon dioxide absorbent composition is described, including (i) a liquid, nonaqueous silicon-based material, functionalized with one or more groups that either reversibly react with CO2 or have a high-affinity for CO2, and (ii) a hydroxy-containing solvent that is capable of dissolving both the silicon-based material and a reaction product of the silicon-based material and CO2. The absorbent may be utilized in methods to reduce carbon dioxide in an exhaust gas, and finds particular utility in power plants.

Abstract translation: 描述了二氧化碳吸收剂组合物，其包括（i）一种液体非水硅基材料，其被一个或多个与CO 2可逆地反应或对CO 2具有高亲和力的基团官能化，和（ii）含羟基的 溶剂，其能够溶解硅系材料和硅类材料与CO 2的反应产物。 吸收剂可用于减少废气中的二氧化碳的方法，并且在发电厂中具有特殊的用途。

公开(公告)号：US20160175769A1

公开(公告)日：2016-06-23

申请号：US14968488

申请日：2015-12-14

Applicant: Hexion Inc.

Inventor： Cyrille KAMOUN ,  Jan BEETGE

IPC: B01D53/52 ,  B01J20/22

CPC classification number: B01D53/52 ,  B01D53/1468 ,  B01D53/1493 ,  B01D2251/80 ,  B01D2252/202 ,  B01D2252/20415 ,  B01D2252/20426 ,  B01D2252/20431 ,  B01D2252/20436 ,  B01D2252/20484 ,  B01D2252/50 ,  B01D2252/60 ,  B01D2257/306 ,  B01J20/22 ,  C10L3/103 ,  C10L3/106 ,  C10L2290/541

Abstract: The implementations described herein generally relate to methods and chemical compositions for scavenging sulfur-containing compounds, and more particularly to methods and compositions for scavenging, for example, H2S and mercaptans from gaseous sulfur-containing streams. In one implementation, a method for scavenging a sulfur-containing compound from a gaseous sulfur-containing stream is provided. The method comprises contacting the gaseous sulfur-containing stream with an effective amount of a multi-component scavenging system for scavenging the sulfur-containing compound. The multi-component scavenging system comprises at least one scavenger for scavenging the sulfur-containing compound and at least one hygroscopic agent. The gaseous sulfur-containing stream has an amount of water less than or equal to 100% relative humidity and the gaseous sulfur-containing stream comprises the sulfur-containing compound.

Abstract translation: 本文描述的实施方案一般涉及用于清除含硫化合物的方法和化学组合物，更具体地涉及用于从气态含硫物流清除例如H 2 S和硫醇的方法和组合物。 在一个实施方案中，提供了一种从含气态气流中清除含硫化合物的方法。 该方法包括使气态含硫流与有效量的多成分清除系统接触，以清除含硫化合物。 多组分清除系统包含至少一种用于清除含硫化合物和至少一种吸湿剂的清除剂。 气态含硫物流具有小于或等于100％相对湿度的水，并且气态含硫物流包含含硫化合物。

公开(公告)号：US20160166976A1

公开(公告)日：2016-06-16

申请号：US14907477

申请日：2014-07-23

Applicant: Bumb Prateek ,  CARBON CLEAN SOLUTIONS PVT. LTD

Inventor： Prateek Bumb ,  Ramesh Kumar Ausula ,  Gopi Kiran Neeliesetty

IPC: B01D53/14 ,  B01D53/18

CPC classification number: B01D53/1425 ,  B01D53/1406 ,  B01D53/1475 ,  B01D53/1493 ,  B01D53/18 ,  B01D53/343 ,  B01D2251/306 ,  B01D2251/606 ,  B01D2252/103 ,  B01D2252/20405 ,  B01D2252/20415 ,  B01D2252/20421 ,  B01D2252/20426 ,  B01D2252/20431 ,  B01D2252/20447 ,  B01D2252/20478 ,  B01D2252/20484 ,  B01D2252/602 ,  B01D2252/604 ,  B01D2259/65 ,  B01D2259/652 ,  Y02C10/06

Abstract: A process, system or apparatus for recovering C02 from a gas has an absorption section, cooling section, regeneration section and more than three heating sections and involves a split in the C02 rich stream from the first heating section. A solvent for recovering C02 from a gaseous mixture comprising a primary amino hindered alcohol or tertiary amine in combination with a derivative of piperazine with three or more amino groups as promoter and a carbonate buffer is also disclosed.

Abstract translation: 用于从气体中回收CO 2的方法，系统或装置具有吸收部分，冷却部分，再生部分和多于三个加热部分，并且涉及从第一加热部分分离富CO 2流。 还公开了一种用于从包含伯氨基受阻醇或叔胺与具有三个或更多个氨基作为启动子和碳酸酯缓冲剂的哌嗪衍生物组合的气体混合物回收CO 2的溶剂。

公开(公告)号：US09321007B2

公开(公告)日：2016-04-26

申请号：US14335138

申请日：2014-07-18

Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM

Inventor： Gary Rochelle ,  Omkar Namjoshi ,  Le Li ,  Yang Du ,  Thu Nguyen

IPC: B01D53/14 ,  C07D241/04 ,  B01D53/40

CPC classification number: B01D53/40 ,  B01D53/1456 ,  B01D53/1475 ,  B01D53/1493 ,  B01D2252/103 ,  B01D2252/2041 ,  B01D2252/20415 ,  B01D2252/20421 ,  B01D2252/20426 ,  B01D2252/20431 ,  B01D2252/20447 ,  B01D2257/304 ,  B01D2257/306 ,  B01D2257/308 ,  B01D2257/504 ,  B01D2258/0283 ,  C07D241/04 ,  Y02C10/06 ,  Y02P20/152

Abstract: Compositions and methods related to the removal of acidic gas. In particular, the present disclosure relates to a composition and method for the removal of acidic gas from a gas mixture using a solvent comprising a blend of piperazine and at least one diamine or triamine.

Abstract translation: 与去除酸性气体相关的组成和方法。 特别地，本公开涉及使用包含哌嗪和至少一种二胺或三胺的共混物的溶剂从气体混合物中除去酸性气体的组合物和方法。