Energy Storage, Conversion And Utilization Direct Energy Conversion

Conversion of solid carbonaceous fuels in a fluidized bed fuel cell

Authors: Lee, A.C. Li, S. Mitchell, R.E. Guer, T.M. [Stanford University, Stanford, CA (United States). Dept. of Mechanical Engineering]
 
Abstract: A fluidized bed direct carbon fuel cell was employed to achieve direct conversion of solid fuels into electricity. Power was generated from pulverized Lower Kittanning (bituminous) coal, synthetic carbon, and biomass in a single process step. Current-voltage characteristics exhibited typical fuel cell behavior. Fluidization in flowing CO 2 overcomes the difficulty of attaining solid fuel-to-anode contact and generates CO in situ via the Boudouard reaction. A mechanistic reaction pathway is proposed for anodic oxidation of the solid fuel. Conversion was verified by gas analysis of oxidation products in the flue stream and by oxygen mass balance.
Publication Date: 01 Jul 2008
Resource Type: Journal Article
Resource Relation: Journal: Electrochemical and Solid State Letters; Journal Volume: 11; Journal Issue: 2
Country of Publication: United States
Language: English
Keywords relating to this report:
ANODES
BIOMASS
BITUMINOUS COAL
CARBON
CARBON DIOXIDE
CARBON MONOXIDE
CHEMICAL REACTIONS
COAL FUEL CELLS
FLUIDIZED BEDS
OXIDATION
POWER GENERATION

Subjects: