Accession Number : ADD000965

Title :   Method of Making a Catalytic Bed.

Descriptive Note : Patent,


Personal Author(s) : Duncan,William A ; Murfree,James A , Jr

Report Date : 28 Aug 1973

Pagination or Media Count : 3

Abstract : In the past, liquid gas generators have used inert beds with a catalyst such as the Shell 405 catalyst and inert beds with various oxidizing agents such as I2O5, HIO3 and KMnO4. In these type gas generation schemes, the catalytic beds are very expensive, and the inert beds with oxidizing agents have limitations as to the number of times they can be restarted. A need exists for a reliable catalytic bed that has the ability to cause hydrazine to spontaneously decompose on a multiplicity of starts of the gas generator. In accordance with this invention, an inert porous support material such as fire brick or various corrugated ceramics is saturated with a molybdenum resinate solution, and thereafter, the solution is decomposed such as by burning to leave a residue coating of molybdenum and/or molybdenum oxides on the inert porous support material and thereby form a true catalytic bed. When a monopropellant such as hydrazine (N2H4) is brought into contact with the true catalytic bed, a spontaneous exothermal and gas producing decomposition occurs.

Descriptors :   *Patents, *Catalysts, *Hydrazine, *Gas generating systems, Supports, Molybdenum, Molybdenum compounds, Liquid rocket propellants

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE