Back to results
US 9,040,205 B2Granted
Protection of porous carbon fuel particles from boudouard corrosion
AssigneeLawrence Livermore National Security, LLC
InventorJohn F. Cooper
Life of this patent
Estimating the term…
Abstract
A system for producing energy that includes infusing porous carbon particles produced by pyrolysis of carbon-containing materials with an off-eutectic salt composition thus producing pore-free carbon particles, and reacting the carbon particles with oxygen in a fuel cell according to the reaction C+O2=CO2 to produce electrical energy.
Claims6
A method of producing energy using a direct carbon fuel cell protected from Boudouard corrosion, the direct carbon fuel cell having an operating temperature, comprising the steps of:
- providing carbon particles that have pores,
- blocking said pores in said carbon particles by infusing an off-eutectic salt composition into said pores in said carbon particles and filling said pores thereby producing substantially pore-free carbon particles wherein said off-eutectic salt composition has a melting point that is higher than the operating temperature of the direct carbon fuel cell, and
- reacting said substantially pore-free carbon particles with oxygen at the direct carbon fuel cell operating temperature below said melting point of said off-eutectic salt composition according to the reaction C+O2=CO2 providing protection from Boudouard corrosion to produce the energy.
Dependencies are inferred from the claim text.