Institute of Gas Technology

Elias Humberto Camara

Leonard G Marianowski

Hansraj C Maru

Rafael A Donado

Gerald L Anderson

A process for production of electricity in molten carbonate fuel cells using a sulfur contaminated fuel gas wherein anode polarization is reduced by use of a porous anode of greater than about 10 weight percent copper resulting in improved fuel cell operation using fuel gas mixtures of over about 10 volume percent carbon monoxide and up to about 10 ppm hydrogen sulfide.

Use of sulfur containing fuel in molten carbonate fuel cells

A high temperature molten carbonate fuel cell ferrous metal cell housing having about 2 to about 70 weight percent aluminum content in the cell housing surface wet seal area prior to cell operation providing corrosion inhibition during fuel cell operation.

Molten carbonate fuel cell corrosion inhibition

An improved molten carbonate fuel cell electrolyte wherein the inert support matrix is predominately LiAl0.sub.2 having crystalline structure with an average L/D greater than about 3 and surface area greater than about 5 sq. meters/gram and the carbonates composition is a ternary lithium-potassium-sodium or binary lithium-potassium or lithium-sodium carbonates composition having a thermal expansion of about 1.5 to about 3.5 .times. 10.sup.-5 inch/inch .degree. C. The improved molten carbonate fuel cell electrolyte of this invention provides fuel cell electrolytes capable of containing 50 to 70 wt. percent carbonate components to provide high power densities while providing a thin electrolyte which is resistant to physical damage on thermal cycling of the fuel cell. The electrolyte of this invention may also be reinforced with metallic alloys to provide additional strength characteristics.

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Bolingbrook, IL, United States of America

Elias Humberto Camara