H 2 O 2 decomposition catalyst

Details H 2 O 2 decomposition catalyst H 2 O 2 decomposition catalyst

2006-01-31

2006-01-31

Johnson, Christina (Department: 1725)

Chemistry of inorganic compounds

Oxygen or compound thereof

Water

C423S579000

Reexamination Certificate

active

06991772

ABSTRACT:
An activated catalyst for the rapid decomposition of H2O2is provided wherein a porous high surface area catalyst base, e.g. a zeolite molecular sieve (ZMS) is impregnated or doped with a solution of metal cation salts and an ionic promoter, dried and calcined to form an activated catalyst. Such activated catalyst, in the form of a porous monolith or chunks, extrudate, pieces, pellets, or spheres, can be poured into and confined, in a tight pack, in a cavity of a rocket housing, downstream of a pressurized H2O2tank. The H2O2is flowed through the catalyst and undergoes rapid decomposition into steam and O2and flows out the propellant nozzle of such rocket. Advantages of such activated catalyst are that it can be employed to rapidly decompose H2O2to propel a) a mono-propellant rocket, b) a bipropellant rocket (having fuel and a combustion chamber) and c) a hybrid rocket (powered by H2O2and fuel grain) and can also be used for a starter cartridge decomposition catalyst, a gas generator decomposition catalyst and the like. Another benefit of the activated catalyst of the invention is its low weight which is highly suitable in small flightweight rocket systems.

REFERENCES:
patent: 3884836 (1975-05-01), Kuhl et al.
patent: 3887696 (1975-06-01), Bernard et al.
patent: 4752461 (1988-06-01), Coeckelberghs et al.
patent: 4861560 (1989-08-01), Nakajima
patent: 3-218904 (1991-09-01), None

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