Feasibility of a Co Oxygen Carrier for Chemical Looping Air Separation: Thermodynamics and Kinetics | Zendy

Wang Kun | Zendy; Yu Qingbo | Zendy; Qin Qin | Zendy; Duan Wenjun | Zendy

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Feasibility of a Co Oxygen Carrier for Chemical Looping Air Separation: Thermodynamics and Kinetics

Author(s) -

Wang Kun,

Yu Qingbo,

Qin Qin,

Duan Wenjun

Publication year - 2014

Publication title -

chemical engineering and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.403

H-Index - 81

eISSN - 1521-4125

pISSN - 0930-7516

DOI - 10.1002/ceat.201400178

Subject(s) - chemical looping combustion , oxygen , air separation , chemistry , chemical reaction engineering , kinetics , reactivity (psychology) , chemical engineering , chemical stability , redox , thermodynamics , materials science , inorganic chemistry , catalysis , organic chemistry , medicine , physics , alternative medicine , pathology , quantum mechanics , engineering

Chemical looping air separation (CLAS) is based on the chemical looping principle: oxygen carriers release oxygen to carrier gas in a reduction reactor and absorb oxygen from air in an oxidation reactor. High oxygen transport capacity, high reactivity in reduction and oxidation reactions, and resistance to attrition and agglomeration are some of the criteria that feasible oxygen carrier materials should fulfill. Thermodynamic analysis was applied to prove the potential of Co 3 O 4 as oxygen carrier. ZrO 2 served as binder to improve the anti‐sintering property and reactivity. Kinetic experiments were performed to determine the reaction rate and conversion of the oxygen carrier. Stability and durability of the oxygen carrier were characterized before and after cyclic experiments. The Co/Zr oxygen carrier proved to be a suitable candidate for the CLAS process.

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