Liquid Antimony Anode Fluidization within a Tubular Direct Carbon Fuel Cell. Issue 3 (1st January 2016)

• Record Type: Journal Article
• Authors: Cao, Tianyu; Shi, Yixiang; Cai, Ningsheng
• Is Part Of: Journal of the Electrochemical Society. Volume 163:Issue 3(2016)
• Page Start: F127
• Page End: F131
• Publication Date: 2016-01-01
• Subjects: antimony -- coal -- Direct carbon fuel cell -- fixed bed -- fluidized bed -- liquid anode; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.0081603jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : A direct carbon fuel cell unit is assembled based on an electrolyte supported tubular SOFC (Solid Oxide Fuel Cell). The system adopts liquid Antimony (Sb) as anode and is operated at 800°C to evaluate the electrochemical performance of the direct carbon fuel cell. Fluidization gas is introduced into the fuel cell and the liquid Sb anode works under two types of working conditions: (1) fixed bed operation and (2) fluidized bed operation. The effects of fluidization state on fuel cell performance are investigated. De-ash coal is introduced into the liquid anode chamber in both of these two operating modes. The experimental results indicates that the fuel cell performance can be promoted by coal addition and the fuel supplied by fluidized bed exhibits better performance than that by fixed bed. The experimental result approves the potential of continuous operation of the direct carbon fuel cell unit.