(DE19725009-C1)      A methanol reforming catalyst is pre-aged before use by heating for several hours in a dry oxidising or inert atmosphere at a temperature of at least 300C until its volume shrinkage comes to a standstill.    Preferably the atmosphere during pre-ageing contains &lt; 1 vol.%, the balance being either air or argon.    USE -   To prepare a methanol reforming catalyst    ADVANTAGE -   By pre-shrinking the catalyst it does not undergo a loss in its specific activity that would otherwise occur during shrinkage during the first few hours of use.    (JP11090240-A)      A methanol reforming catalyst is pre-aged before use by heating for several hours in a dry oxidising or inert atmosphere at a temperature of at least 300C until its volume shrinkage comes to a standstill.    Preferably the atmosphere during pre-ageing contains &lt; 1 vol.%, the balance being either air or argon.    USE -   To prepare a methanol reforming catalyst    ADVANTAGE -   By pre-shrinking the catalyst it does not undergo a loss in its specific activity that would otherwise occur during shrinkage during the first few hours of use.    (US6083863-A)      A methanol reforming catalyst is pre-aged before use by heating for several hours in a dry oxidising or inert atmosphere at a temperature of at least 300C until its volume shrinkage comes to a standstill.    Preferably the atmosphere during pre-ageing contains &lt; 1 vol.%, the balance being either air or argon.    USE -   To prepare a methanol reforming catalyst    ADVANTAGE -   By pre-shrinking the catalyst it does not undergo a loss in its specific activity that would otherwise occur during shrinkage during the first few hours of use.    (US6280701-B1)      A methanol reforming catalyst is pre-aged before use by heating for several hours in a dry oxidising or inert atmosphere at a temperature of at least 300C until its volume shrinkage comes to a standstill.    Preferably the atmosphere during pre-ageing contains &lt; 1 vol.%, the balance being either air or argon.    USE -   To prepare a methanol reforming catalyst    ADVANTAGE -   By pre-shrinking the catalyst it does not undergo a loss in its specific activity that would otherwise occur during shrinkage during the first few hours of use.