Thermally integrated reformer for solid oxide fuel cells

Details Thermally integrated reformer for solid oxide fuel cells Thermally integrated reformer for solid oxide fuel cells

1993-10-06

1994-11-22

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 19, 429 26, H01M 806

Patent

active

053668197

ABSTRACT:
A thermally integrated reformer (10) is located inside the stack furnace (12), housing stacks (14) of solid oxide fuel cells (16). The energy to support the endothermic reformation reaction converting hydrocarbon and water feedstock into hydrogen and carbon monoxide fuel is supplied by heat recuperated from the oxidation process in the stack (14) of fuel cells (16). The source of hydrocarbons is de-sulfurized natural gas. Heat transfers to the incrementally shielded packed beds (30, 60) of the reactors (18, 19) of the reformer (10) by radiation from the stacks (14) and furnace wall (38) and by forced convection from the exhausting airflow exiting the stack furnace (12). Temperature gradients in the reformer (10) are controlled by selective (or incremented) radiation shielding (20) and by counterflow heat exchange to prevent excessive premature cracking in the reformer where carbonization would clog interstices and render the catalyst granules (32) ineffective.

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