NOVELTY - Fuel treating equipment (100) has fuel-supply portion (10), desulfurizer (20) which desulfurizes liquid fuel from portion (10), vapor-liquid separation device (30) which separates desulfurized fuel into liquid-phase fuel (A) and gaseous-phase fuel (B), and modifier (40) with vaporization portion (42), modification-reaction portion (43) and combustion portion. Fuel (B) is combusted in portion (41). Fuel (A) is supplied to portion (42), mixed with water, supplied to portion (43) after vaporization, and converted into hydrogen.    USE - In fuel cell for treating liquid fuel such as hydrogen fuel, alcoholic fuel and hydrocarbon-type fuel such as naphtha, gasoline, kerosene, light oil, methanol, ethanol, and liquefied petroleum gas (all claimed).    ADVANTAGE - The equipment efficiently enables treatment of fuel by using heat source in combustion portion and maintaining fuel flow rate, and converts liquid fuel into hydrogen.    DETAILED DESCRIPTION - The fuel treating equipment (100) has a fuel-supply portion (10), a desulfurizer (20) which desulfurizes liquid fuel supplied from portion (10), a vapor-liquid separation device (30) which separates the desulfurized liquid fuel into liquid-phase fuel (A) and gaseous-phase fuel (B), and a modifier (40). Vaporization portion (42), modification-reaction portion (43) and combustion portion (41) are provided at the modifier. The separated gaseous-phase fuel is supplied to the combustion portion of modifier by pump provided at path carries out discharge, and combusted using air. The vaporization portion and modification-reaction portion are heated. The separated liquid-phase fuel is supplied to the vaporization portion, mixed with water, supplied to modification-reaction portion after vaporization, and converted into hydrogen.    INDEPENDENT CLAIMS are included for the following:    (1) fuel cell;    (2) processing of liquid fuel; and    (3) fuel-supply method.    DESCRIPTION OF DRAWING(S) - The figure shows the block diagram of the fuel treating equipment. (Drawing includes non-English language text).    Fuel-supply portion (10)    Desulfurizer (20)    Vapor-liquid separation device (30)    Modifier (40)    Combustion portion (41)    Vaporization portion (42)    Modification-reaction portion (43)    Fuel treating equipment (100)