Desulfurizer for fuel gas for fuel cell and desulfurization...

Gas separation: processes – Solid sorption – Inorganic gas or liquid particle sorbed

Reexamination Certificate

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C096S141000, C423S242100, C423S006000, C423S047000

Reexamination Certificate

active

08057577

ABSTRACT:
A desulfurizer for fuel gas for a fuel cell includes: a first adsorption tank including an adsorber having selective adsorption capacity for a thiophene-based compound and a second adsorption tank including an adsorber having selective adsorption capacity for a mercaptan-based compound. The desulfurizer uses separate adsorbers having selective adsorption capacity for a thiophene-based compound and a mercaptan-based compound, in multiple stages to perform a more efficient and economical desulfurizing of a fuel gas to remove various sulfur compounds, especially thiophene-based compounds and mercaptan-based compounds compared to a desulfurizer using a single adsorber.

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