초록 ▼

A catalytic hydrogen generator which generates hydrogen by the partial oxidation of methanol by oxygen (usually supplied as air) which comprises a gas permeable catalyst system having an upstream zone (2) filled with a copper catalyst supported on a refractory support (3) (for example silica or sili

A catalytic hydrogen generator which generates hydrogen by the partial oxidation of methanol by oxygen (usually supplied as air) which comprises a gas permeable catalyst system having an upstream zone (2) filled with a copper catalyst supported on a refractory support (3) (for example silica or silicate granules) and a downstream zone (4) filled with a mixture of a similar supported copper catalyst and a platinum or palladium catalyst supported on a similar refractory support (5b). A mixture of methanol and oxygen is fed to the upstream zone and initially permeates through to the downstream zone where spontaneous oxidation of the methanol is initiated raising the temperature of the system to a level at which partial oxidation of methanol in the presence of the copper catalyst in the upstream zone (2) commences and produces hydrogen.

대표청구항 ▼

A process for the catalytic generation of hydrogen from a mixture of methanol and oxygen which does not require the application of external heat using a gas permeable catalyst system comprising (a) an upstream zone (2) comprising a catalyst consisting essentially of copper moieties supported on a re

A process for the catalytic generation of hydrogen from a mixture of methanol and oxygen which does not require the application of external heat using a gas permeable catalyst system comprising (a) an upstream zone (2) comprising a catalyst consisting essentially of copper moieties supported on a refractory support (3) and (b) a downstream zone (4) containing a catalyst comprising copper moieties supported on a refractory support (5a) and mixed with a catalyst comprising moieties of one or more metals chosen from platinum and palladium supported on a refractory support (5b) wherein the mixture is fed into the upstream zone through which it permeates into the downstream zone where oxidation of methanol initiates spontaneously causing a rise in temperature to a temperature at which partial oxidation of methanol in the presence of a copper catalyst in the upstream zone can occur whereupon partial oxidation of methanol in the upstream zone commences and produces hydrogen.