公开(公告)号：US20200215518A1

公开(公告)日：2020-07-09

申请号：US16354406

申请日：2019-03-15

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Sik KIM ,  Heon Phil HA ,  Dong Wook KWON

IPC: B01J23/847 ,  B01J21/06 ,  B01J23/34 ,  B01J37/08 ,  B01J37/20 ,  B01J23/22 ,  B01J23/10 ,  B01J37/02 ,  B01D53/86 ,  B01D53/94

Abstract: Provided is a nitrogen oxide (NOX) reduction catalyst including an active site including at least one of a metal vanadate expressed by [Chemical Formula 1] and a metal vanadate expressed by [Chemical Formula 2], and a support for loading the active site thereon. (M1)XV2OX+5  [Chemical Formula 1] (where M1 denotes one selected from among manganese (Mn), cobalt (Co), and nickel (Ni), and X denotes a real number having a value between 1 and 3.) (M2)YVO4  [Chemical Formula 2] (where M2 denotes one selected from among lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), and lutetium (Lu), and Y denotes a real number having a value between 0.5 and 1.5.)

公开(公告)号：US20240066503A1

公开(公告)日：2024-02-29

申请号：US18193473

申请日：2023-03-30

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Dong Wook KWON ,  Heon Phil HA ,  Min Gie JUNG

IPC: B01J23/28 ,  B01D53/86 ,  B01J21/06 ,  B01J35/02 ,  B01J35/04 ,  B01J35/08 ,  B01J37/02 ,  B01J37/04 ,  B01J37/08

CPC classification number: B01J23/28 ,  B01D53/8628 ,  B01J21/063 ,  B01J35/026 ,  B01J35/04 ,  B01J35/08 ,  B01J37/0219 ,  B01J37/0221 ,  B01J37/0236 ,  B01J37/04 ,  B01J37/088 ,  B01D2251/2062 ,  B01D2255/20723 ,  B01D2255/20769 ,  B01D2255/2098 ,  B01D2255/40 ,  B01D2257/404

Abstract: Provided is a nitrogen oxide removing denitrification catalyst having high durability against sulfur dioxide, a preparing method of the same, and a method for removing nitrogen oxide using the same. The denitrification catalyst is a quaternary denitrification catalyst containing vanadium-molybdenum-antimony-titania used in a selective catalytic reduction (SCR) reaction using an ammonia reductant to remove nitrogen oxides included in exhaust gases, antimony, molybdenum and vanadium are carried on a titania carrier, and molybdenum and vanadium are combined to be present in a form of a complex oxide (V2MoO8).