公开(公告)号：US09975080B1

公开(公告)日：2018-05-22

申请号：US15045201

申请日：2016-02-16

Applicant: United States Department of Energy

Inventor： David Luebke ,  Hunaid Nulwala ,  Brian Kail ,  Fan Shi ,  Robert L Thompson ,  Nicholas Siefert

IPC: B01D53/14 ,  B01D53/78 ,  B01D53/96 ,  C10K1/00 ,  C10L3/10 ,  B01J31/02

CPC classification number: B01D53/1475 ,  B01D53/1425 ,  B01D53/1493 ,  B01D2252/2053 ,  B01D2252/2056 ,  B01D2252/30 ,  C10K1/005 ,  C10K1/16 ,  C10L3/104 ,  C10L2290/12 ,  C10L2290/541

Abstract: Exemplary embodiments relate to methods for removal of CO2 and other acid gases from gaseous fuels prior to combustion. Exemplary methods may be used for CO2 capture, H2 purification and natural gas sweetening. Exemplary methods use at least one ionic liquid that has excellent CO2 solubility, selectivity over hydrogen, low viscosity, and resistance to H2S.

公开(公告)号：US09969949B1

公开(公告)日：2018-05-15

申请号：US15458760

申请日：2017-03-14

Applicant: Iogen Corporation

Inventor： Brian Foody ,  Patrick J. Foody

IPC: C07C7/00 ,  C10L3/10 ,  B01D53/22 ,  B01D53/047 ,  B01D53/26 ,  C02F11/04 ,  G06Q30/02 ,  G06Q50/06 ,  C02F103/28 ,  C02F103/32

CPC classification number: C10L3/104 ,  B01D53/047 ,  B01D53/1475 ,  B01D53/22 ,  B01D53/229 ,  B01D53/261 ,  B01D53/263 ,  B01D53/265 ,  B01D53/266 ,  B01D2252/103 ,  B01D2253/102 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2253/1124 ,  B01D2256/245 ,  B01D2257/102 ,  B01D2257/304 ,  B01D2257/504 ,  B01D2257/553 ,  B01D2257/556 ,  B01D2257/80 ,  B01D2258/05 ,  C02F11/04 ,  C02F2103/28 ,  C02F2103/32 ,  C10L3/101 ,  C10L3/105 ,  C10L2290/02 ,  C10L2290/24 ,  C10L2290/542 ,  C10L2290/548 ,  G06Q30/0227 ,  G06Q50/06

Abstract: A method for providing upgraded biogas includes feeding a stream of biogas into a biogas upgrading system in order to remove carbon dioxide from the stream of biogas. The biogas upgrading system, which may be based on absorption, adsorption, membrane permeation, and/or cryogenics, provides a stream of upgraded biogas and a tail gas stream. The tail gas stream, which may be CO2-rich, is enriched with natural gas so that it is combustible in medium-BTU equipment. The upgraded biogas is used for transportation use and/or the generation of fuel credits. Accordingly, both the tail gas and the upgraded biogas are used effectively and at lower cost.

公开(公告)号：US09968882B2

公开(公告)日：2018-05-15

申请号：US15274382

申请日：2016-09-23

Applicant: ExxonMobil Research and Engineering Company

Inventor： Simon C. Weston ,  Mobae Afeworki ,  Bhupender S. Minhas ,  Ramesh Gupta ,  Hugo S. Caram ,  Manoj K. Chaudhury ,  Hans Thomann ,  Hilda B. Vroman ,  Meghan Nines

IPC: B01D53/04 ,  B01J20/22 ,  B01J20/26 ,  B01J20/18 ,  B01J20/32 ,  B01D53/14

CPC classification number: B01D53/0462 ,  B01D53/0423 ,  B01D53/0446 ,  B01D53/1475 ,  B01D2253/108 ,  B01D2253/204 ,  B01D2253/25 ,  B01D2257/504 ,  B01J20/18 ,  B01J20/22 ,  B01J20/226 ,  B01J20/262 ,  B01J20/3204 ,  B01J20/3206 ,  B01J20/3214 ,  B01J20/3246 ,  B01J20/3272 ,  Y02C10/08

Abstract: A heat transfer fluid can be used as part of a multi-phase adsorption environment to allow for improved separations of gas components using a solid adsorbent. The heat transfer fluid can reduce or minimize the temperature increase of the solid adsorbent that occurs during an adsorption cycle. Reducing or minimizing such a temperature increase can enhance the working capacity for an adsorbent and/or enable the use of adsorbents that are not practical for commercial scale adsorption using conventional adsorption methods. The multi-phase adsorption environment can correspond to a trickle bed environment, a slurry environment, or another convenient environment where at least a partial liquid phase of a heat transfer fluid is present during gas adsorption by a solid adsorbent.

公开(公告)号：US20180120024A1

公开(公告)日：2018-05-03

申请号：US15853023

申请日：2017-12-22

Applicant: Union Engineering A/S

Inventor： Rasmus Find ,  Jan Flensted Poulsen

IPC: F25J3/08 ,  B01D53/78 ,  B01D53/14

CPC classification number: F25J3/08 ,  B01D53/1475 ,  B01D53/78 ,  B01D2256/22 ,  Y02C10/06

Abstract: A purification system for recovering carbon dioxide from a gaseous carbon dioxide stream originating from a fermentation process, brewery or a bottling line is provided. The purification system includes a compressor in fluid communication with an absorber. The compressor provides a compressed gaseous stream at a predetermined pressure and the absorber separates the compressed gaseous stream into a carbon dioxide rich gaseous stream and a contaminant rich stream. A condenser is designed to operate at a pressure of at least 30 bar and is designed to separate the carbon dioxide rich gaseous stream into a condensate and a purge gas. A distillation column is configured to separate the condensate into a second purge gas and a purified carbon dioxide stream.

公开(公告)号：US09957161B2

公开(公告)日：2018-05-01

申请号：US15368623

申请日：2016-12-04

Applicant: Grannus LLC

Inventor： James Kelly Merritt, Jr.

IPC: C01B32/50 ,  C01B3/36 ,  C01B3/48 ,  B01D53/14 ,  B01D53/26 ,  C10G2/00 ,  B01D53/047 ,  C01C1/04 ,  C01B3/56

CPC classification number: C01B3/48 ,  B01D53/047 ,  B01D53/1425 ,  B01D53/1475 ,  B01D53/265 ,  B01D2252/204 ,  B01D2256/16 ,  C01B3/36 ,  C01B3/56 ,  C01B32/50 ,  C01B2203/0255 ,  C01B2203/0261 ,  C01B2203/0288 ,  C01B2203/0415 ,  C01B2203/042 ,  C01B2203/0425 ,  C01B2203/0465 ,  C01B2203/0475 ,  C01B2203/0495 ,  C01B2203/062 ,  C01B2203/068 ,  C01B2203/1235 ,  C01B2203/1258 ,  C01B2203/127 ,  C01B2203/146 ,  C01C1/0405 ,  C10G2/30 ,  Y02P20/52

Abstract: Provided are processes for production of hydrogen to be used in various industrial processes, including in processes for production of ammonia and urea. Included are polygeneration processes that result in ultra-low emissions.

公开(公告)号：US20180079660A1

公开(公告)日：2018-03-22

申请号：US15708844

申请日：2017-09-19

Applicant: University of Kentucky Research Foundation

Inventor： Leland R. Widger ,  Megan L. Combs ,  Jesse G. Thompson ,  Cameron A. Lippert ,  Kunlei Liu

IPC: C02F1/28 ,  B01D15/00

CPC classification number: C02F1/283 ,  B01D15/00 ,  B01D53/1425 ,  B01D53/1475 ,  B01D53/1493 ,  B01D2252/204 ,  B01D2253/102 ,  B01D2253/31 ,  B01D2253/311 ,  C02F2101/38 ,  C02F2103/18 ,  C02F2103/34 ,  C02F2209/40 ,  C02F2303/16 ,  Y02C10/06 ,  Y02W10/37

Abstract: The present invention relates to a method and system for removing nitrosamines from amine-based carbon capture systems by circulating waterwash through a filter of activated carbon. Nitrosamine emission control strategies are critical for the success of amine-based carbon capture as the technology approaches industrial-scale deployment. Waterwash systems are used to control volatile and aerosol emissions, including nitrosamines, from carbon capture plants, but it is still necessary to remove or destroy nitrosamines in the circulating waterwash to prevent their subsequent emissions into the environment. The circulation of the water over a sorbent bed of activated carbon provides a cost-effective approach to selectively remove nitrosamines from the waterwash effluent to reduce the environmental impact associated with amine-based carbon capture.

公开(公告)号：US09914088B2

公开(公告)日：2018-03-13

申请号：US14409889

申请日：2013-05-29

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD. ,  THE KANSAI ELECTRIC POWER CO., INC.

Inventor： Hiroshi Tanaka ,  Hiromitsu Nagayasu ,  Takuya Hirata ,  Tsuyoshi Oishi ,  Takashi Kamijo

IPC: B01D53/14 ,  B01D53/18 ,  B01D53/62 ,  B01D53/78 ,  C01B32/50

CPC classification number: B01D53/1425 ,  B01D53/1475 ,  B01D53/18 ,  B01D53/62 ,  B01D53/78 ,  B01D2252/204 ,  B01D2258/0283 ,  C01B32/50 ,  Y02C10/04 ,  Y02C10/06 ,  Y02P20/152

Abstract: A CO2 recovery unit for recovery and removal of CO2 in a CO2-containing flue gas using a CO2-absorbent within a CO2 absorber is provided. The CO2 absorber includes a CO2-absorbing unit for the absorption of CO2 in a CO2-containing flue gas, a main water rinsing unit that is provided on a gas flow downstream side of the CO2-absorbing unit and that uses rinsing water to recover the accompanying CO2-absorbent while cooling decarbonated flue gas, and a preliminary water rinsing unit provided between the CO2-absorbing unit and the main water rinsing unit. A portion of the rinsing water containing the CO2-absorbent that is circulated in the main water rinsing unit is withdrawn and is subjected to preliminary water rinsing in the preliminary water rinsing unit. The preliminary rinsing water is allowed to meet with a CO2-absorbent while allowing the rinsing water to directly flow down on the CO2-absorbing unit side.

公开(公告)号：US09901873B2

公开(公告)日：2018-02-27

申请号：US14420248

申请日：2013-07-31

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Tsuyoshi Oishi ,  Hiromitsu Nagayasu ,  Hiroshi Tanaka ,  Takuya Hirata ,  Takashi Kamijo ,  Daisuke Shimada

IPC: B01D53/14 ,  B01D53/62 ,  B01D53/78 ,  C01B31/20 ,  B01D19/00

CPC classification number: B01D53/62 ,  B01D19/0015 ,  B01D19/0042 ,  B01D53/1425 ,  B01D53/1475 ,  B01D53/78 ,  B01D2252/204 ,  B01D2252/20478 ,  B01D2257/104 ,  B01D2258/0283 ,  C01B32/50 ,  Y02C10/04 ,  Y02C10/06 ,  Y02P20/152

Abstract: CO2 absorber includes a CO2 absorbing section in which a CO2-containing flue gas and a CO2 absorbent are brought into contact with each other to remove CO2, and an aqueous cleaning section in which a decarbonated flue gas and rinsing water are brought into contact with each other to remove an accompanying substance. A lean solution is re-used in the absorber. The CO2 recovery device includes a degassing basin which is interposed in a rich solution supply line that supplies the rich solution from the CO2 absorber to the absorbent regenerator, and which includes a retaining section configured to remove oxygen in the rich solution.

公开(公告)号：US09901846B2

公开(公告)日：2018-02-27

申请号：US14549954

申请日：2014-11-21

Applicant: Shaojun Zhou ,  Howard S. Meyer ,  Shiguang Li

Inventor： Shaojun Zhou ,  Howard S. Meyer ,  Shiguang Li

IPC: B01D19/00 ,  B01D53/14

CPC classification number: B01D19/0036 ,  B01D53/1425 ,  B01D53/1475 ,  B01D2252/10 ,  B01D2252/102 ,  B01D2252/204 ,  B01D2257/504 ,  Y02A50/2342 ,  Y02C10/04 ,  Y02C10/06

Abstract: A process for removing carbon dioxide from a carbon dioxide-loaded solvent uses two stages of flash apparatus. Carbon dioxide is flashed from the solvent at a higher temperature and pressure in the first stage, and a lower temperature and pressure in the second stage, and is fed to a multi-stage compression train for high pressure liquefaction. Because some of the carbon dioxide fed to the compression train is already under pressure, less energy is required to further compress the carbon dioxide to a liquid state, compared to conventional processes.

公开(公告)号：US09895648B2

公开(公告)日：2018-02-20

申请号：US14410418

申请日：2013-07-11

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Yoshio Seiki ,  Kouji Horizoe ,  Atsuhiro Yukumoto ,  Haruaki Hirayama ,  Masaki Yushima

IPC: B01D53/14 ,  B01D53/18 ,  C01B31/20 ,  B01D53/62 ,  C01B32/50

CPC classification number: B01D53/1418 ,  B01D53/1425 ,  B01D53/1475 ,  B01D53/62 ,  B01D2258/0283 ,  C01B32/50 ,  Y02C10/04 ,  Y02C10/06 ,  Y02P20/152

Abstract: A CO2 recovery system includes an absorption tower that brings gas containing CO2 into contact with a CO2 absorption solution to remove CO2 from the CO2-containing gas; a regeneration tower that regenerates a CO2-absorbed rich solution; and a compression device that re-uses a lean solution, from which CO2 has been removed in the regeneration tower, in the absorption tower and compresses CO2 in gas emitted from the regeneration tower, wherein the rich solution has a high pressure, the high-pressure rich solution is subjected to gas-liquid separation by a flash drum, the rich solution as a liquid component separated in the flash drum is introduced into the regeneration tower, and high-pressure CO2 gas as a gas component separated in the flash drum is introduced into a compression device having a predetermined compression pressure.