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Title:
RAW MATERIAL COMPOSITION FOR PREPARING OXYGEN CARRIER PARTICLES, OXYGEN CARRIER PARTICLES PREPARED BY USING SAME, AND METHOD FOR PREPARING OXYGEN CARRIER PARTICLES
Document Type and Number:
WIPO Patent Application WO/2018/056766
Kind Code:
A1
Abstract:
The present invention relates to a raw material composition for preparing oxygen carrier particles, which comprises a first component that is at least one of nickel oxide and nickel hydroxide; and a second component that is at least one from among boehmite, cerium oxide, cerium hydroxide, magnesium oxide, magnesium hydroxide and titanium oxide, wherein if the first component is nickel oxide, the second component comprises cerium hydroxide. The raw material composition for preparing oxygen carrier particles of the present invention is prepared as oxygen carrier particles according to an oxygen carrier particle preparation method to be described below by controlling the composition thereof and the mixing ratio (formulation) and the homogenizing degree of raw materials, and thereafter has physical properties such as shape, particle size and size distribution suitable for a fluidized bed or fast fluidized bed process, and can prepare oxygen carrier particles having improved wear resistance, long-term durability and oxygen delivery performance while lowering the firing temperature as compared to conventional techniques.

Inventors:
KIM UI SIK (KR)
BAEK JEOM IN (KR)
LEE JOONG BEOM (KR)
EOM TAE HYOUNG (KR)
JO HYUN GEUN (KR)
Application Number:
KR2017/010509
Publication Date:
March 29, 2018
Filing Date:
September 22, 2017
Export Citation:
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Assignee:
KOREA ELECTRIC POWER CORP (KR)
International Classes:
C01B13/02; C04B35/01; C04B35/626; F23C10/00; C04B103/40
Foreign References:
KR20120013151A2012-02-14
KR20050045399A2005-05-17
Other References:
ZHAO, H. ET AL.: "Sol-gel-derived NiO/NiAl2O4 Oxygen Carriers for Chemical-looping Combustion by Coal Char", ENERGY & FUELS, vol. 22, no. 2, 20 February 2008 (2008-02-20), pages 898 - 905, XP055499044, Retrieved from the Internet
LIU, F. ET AL.: "Cerium Oxide (Ce02) Promoted Oxygen Carrier Development and Scale Modeling Study for Chemical Looping Combustion", THESES AND DISSERTATIONS-MECHANICAL ENGINEERING, 2013, pages 1 - 92, XP055499046
BAEK, J.-I. ET AL.: "Effects of Support on the Performance of NiO-based Oxygen Carriers", OIL & GAS SCIENCE AND TECHNOLOGY-REV. IFP ENERGIES NOUVELLES, vol. 66, no. 2, March 2011 (2011-03-01), pages 223 - 234, XP055499053, Retrieved from the Internet
Attorney, Agent or Firm:
AJU INTERNATIONAL LAW & PATENT GROUP (KR)
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