Title:
MATERIAL COMPOSITION FOR PREPARING OXYGEN TRANSFER PARTICLES, OXYGEN TRANSFER PARTICLES PREPARED USING SAME, AND METHOD FOR PREPARING OXYGEN TRANSFER PARTICLES
Document Type and Number:
WIPO Patent Application WO/2019/078413
Kind Code:
A1
Abstract:
One embodiment of the present invention relates to a material composition for preparing oxygen transfer particles, comprising: nickel hydroxide; cerium oxide or cerium hydroxide; and titanium oxide. The material composition for preparing oxygen transfer particles, of the present invention, is prepared as oxygen transfer particles according to a method for preparing oxygen transfer particles, described below, by controlling the compositional state, the formulation of materials, and the degree of homogenization, so as to have physical properties, such as shape, particle size and size distribution, suitable for a fluidized-bed or high velocity fluidized-bed process, and oxygen transfer particles having improved abrasion resistance, long-term durability and oxygen transfer performance can be prepared even while firing temperature is lowered, in comparison with a conventional technique.
Inventors:
KIM UI SIK (KR)
BAEK JEOM IN (KR)
EOM TAE HYOUNG (KR)
LEE JOONG BEOM (KR)
JO HYUN GEUN (KR)
BAEK JEOM IN (KR)
EOM TAE HYOUNG (KR)
LEE JOONG BEOM (KR)
JO HYUN GEUN (KR)
Application Number:
PCT/KR2017/015647
Publication Date:
April 25, 2019
Filing Date:
December 28, 2017
Export Citation:
Assignee:
KOREA ELECTRIC POWER CORP (KR)
International Classes:
C01B13/02; C04B35/50; C04B35/626; C04B35/634; C04B35/64; F23C10/00
Foreign References:
| KR20120013151A | 2012-02-14 | |||
| JP2015025651A | 2015-02-05 | |||
| US20070049489A1 | 2007-03-01 |
Other References:
ZHAO, HAIBO ET AL.: "Sol-Gel-Derived NiO/NiAl2O4 Oxygen Carriers for Chemical-Looping Combustion by Coal Char", ENERGY & FUELS, vol. 22, 2008, pages 898 - 905, XP055499044, DOI: doi:10.1021/ef7003859
HEDAYATI, ALI ET AL.: "Evaluation of Novel Ceria-Supported Metal Oxides As Oxygen Carriers for Chemical-Looping Combustion", INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, vol. 51, no. 39, 24 August 2012 (2012-08-24), pages 12796 - 12806, XP055597865, ISSN: 0888-5885, DOI: 10.1021/ie300168j
HEDAYATI, ALI ET AL.: "Evaluation of Novel Ceria-Supported Metal Oxides As Oxygen Carriers for Chemical-Looping Combustion", INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, vol. 51, no. 39, 24 August 2012 (2012-08-24), pages 12796 - 12806, XP055597865, ISSN: 0888-5885, DOI: 10.1021/ie300168j
Attorney, Agent or Firm:
AJU INTERNATIONAL LAW & PATENT GROUP (KR)
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