NOVELTY - A fuel reformer has modification portion (1) for forming hydrogen, combustion portion (3) for supplying heat generated by burning a combustion fuel to modification portion, modification-catalyst layer (7) provided in modification portion surface , and combustion catalyst layer (9) provided in combustion portion surface. The modification and combustion portions are separated through a plate material (5).    USE - For reforming fuels such as methanol to generate hydrogen.    ADVANTAGE - The heat generated by burning combustion fuel in the fuel reformer, is directly supplied to the modification catalyst layer through the plate material and thus thermal efficiency of the fuel reformer is improved. Since, the platinum concentration in the combustion catalyst layer is changed in the combustion portion, a uniform combustion occurs in the combustion catalyst layer. The fuel reformer effectively reduces the warming-up time till modification portion is started.    DETAILED DESCRIPTION - A fuel reformer has a modification portion for forming hydrogen, a combustion portion for supplying heat generated by burning a combustion fuel to the modification portion, a modification-catalyst layer provided in surface of the modification portion, and a combustion catalyst layer provided in surface of the combustion portion. The modification portion and combustion portion are separated through a plate material. The modification-catalyst layer performs steam reformation and heat generated is supplied to methanol.    INDEPENDENT CLAIMS are included for the following:    (1) Generation of heat in the combustion portion of fuel reformer which involves introducing the combustion fuel from an outlet of the combustion portion, generating heat in the vicinity portion of the outlet, introducing the combustion fuel from an inlet of the combustion portion and generating heat in the vicinity portion of the inlet; and    (2) Preparation of combustion catalyst layer which involves mixing alumina, alumina sol and platinum to prepare slurry-form catalyst, coating the obtained slurry-form catalyst on the plate material and baking the coated slurry-form catalyst.    DESCRIPTION OF DRAWING(S) - The figure shows the schematic drawing of the fuel reformer equipped with the combustion portion which contained the combustion catalyst which is present in higher concentration in upstream side than downstream side, and the modification portion arranged adjacent to the combustion portion. (Drawing includes non-English language text).    Modification portion (1)    Combustion portion (3)    Plate material (5)    Modification-catalyst layer (7)    Upstream side of combustion portion (13)    Downstream side of combustion portion (15)