公开(公告)号：US11167261B2

公开(公告)日：2021-11-09

申请号：US16340065

申请日：2016-11-18

Applicant: KOREA ELECTRIC POWER CORPORATION ,  KOREA SOUTH-EAST POWER CO., LTD. ,  KOREA MIDLAND POWER CO., LTD. ,  KOREA SOUTH POWER CO., LTD. ,  KOREA WESTERN POWER CO., LTD.

Inventor： Joong Beom Lee ,  Tae Hyoung Eom ,  Hyun Geun Jo ,  Jeom In Baek ,  Ui Sik Kim

IPC: B01J20/04 ,  B01D53/02 ,  B01J20/28 ,  B01J20/30 ,  B01J20/02

Abstract: The present invention relates to a carbon dioxide absorbent used for absorbing carbon dioxide, a carbon dioxide absorbent composition used for producing the carbon dioxide absorbent, and a solid raw material for a carbon dioxide absorbent included in the carbon dioxide absorbent.

公开(公告)号：US11484830B2

公开(公告)日：2022-11-01

申请号：US16339998

申请日：2016-11-30

Applicant: KOREA ELECTRIC POWER CORPORATION ,  KOREA SOUTH POWER CO., LTD. ,  KOREA SOUTH-EAST POWER CO., LTD. ,  KOREA MIDLAND POWER CO., LTD. ,  KOREA WESTERN POWER CO., LTD.

Inventor： Tae Hyoung Eom ,  Joong Beom Lee ,  Ui Sik Kim ,  Hyun Geun Jo ,  Joong Won Lee

IPC: B01D53/62 ,  B01D53/83 ,  B01D53/96 ,  B01D53/22 ,  B01D71/02 ,  B01D45/16 ,  B04C5/24 ,  B04C9/00

Abstract: A carbon dioxide separator includes an absorption tower for producing a carbon dioxide-rich absorbent and a carbon dioxide-depleted flue gas by reaction of a carbon dioxide-containing flue gas and an absorbent contained therein; a regeneration tower for removing the carbon dioxide-rich absorbent transferred from the absorption tower in the presence of the flowing gas to separate the same into a carbon dioxide-rich treatment gas and a carbon dioxide-lean absorbent; and a separation membrane module for selectively membrane-separating and concentrating the carbon dioxide, wherein the carbon dioxide-containing flue gas is transferred to the absorption tower as a carbon dioxide-lean flue gas obtained via the separation membrane module, and the flowing gas is transferred to the regeneration tower as the carbon dioxide-rich flue gas obtained via the separation membrane module from the carbon dioxide-containing flue gas.

公开(公告)号：US11835227B2

公开(公告)日：2023-12-05

申请号：US16321821

申请日：2017-09-22

Applicant: KOREA ELECTRIC POWER CORPORATION

Inventor： Ui Sik Kim ,  Jeom In Baek ,  Joong Beom Lee ,  Tae Hyoung Eom ,  Hyun Geun Jo

IPC: F23C10/10 ,  F23L7/00 ,  C01B13/20 ,  C01B13/08 ,  B01J8/18 ,  C08L29/04 ,  C08L71/08 ,  B01J8/22 ,  C04B35/626 ,  C01B13/02 ,  C04B35/01 ,  C04B35/632 ,  C04B35/634 ,  C08L1/28

CPC classification number: F23C10/10 ,  B01J8/1872 ,  B01J8/228 ,  C01B13/02 ,  C01B13/08 ,  C01B13/20 ,  C04B35/01 ,  C04B35/626 ,  C04B35/6263 ,  C04B35/62655 ,  C04B35/62675 ,  C04B35/632 ,  C04B35/634 ,  C08L29/04 ,  C08L71/08 ,  F23L7/007 ,  C04B2235/322 ,  C04B2235/3206 ,  C04B2235/3218 ,  C04B2235/3222 ,  C04B2235/3227 ,  C04B2235/3232 ,  C04B2235/3279 ,  C04B2235/44 ,  C04B2235/528 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5463 ,  C08L1/28 ,  F23C2900/99008 ,  F23J2215/50

Abstract: A raw material composition for producing oxygen carriers includes a first component which is one or more of nickel oxide and nickel hydroxide and a second component which is one or more of boehmite, cerium oxide, cerium hydroxide, magnesium oxide, magnesium hydroxide, and titanium oxide, wherein, when the first component is nickel oxide, the second component includes cerium hydroxide. Such a raw material composition for producing oxygen carriers of the present invention is formed into oxygen carriers according to an oxygen carrier producing method, which will be described below, by adjusting the composition, formulation of raw materials, and degree of homogenization. Then, it is possible to produce oxygen carriers having physical properties such as a shape, a particle size, and a particle distribution suitable for a fluidized bed process or a high speed fluidized bed process and having improved wear-resistance, long-term durability, and oxygen transfer performance.