Accession Number : ADD006457

Title :   Hydrogen Gas Generator from Hydrazine/Ammonia.

Descriptive Note : Patent,


Personal Author(s) : Martignoni ,Pasquale ; Chew ,William M ; Ayers ,Orval E ; Murfree,James A , Jr

Report Date : 05 Jun 1979

Pagination or Media Count : 5

Abstract : A catalyst bed containing alumina pellets on which an active catalyst metal selected from iridium, nickel, niobium, and molybdenum has been deposited is employed to decompose a compound selected from deuterohydrazine, deuteroammonia, hydrazine, and ammonia to yield ammonia free deuterium and nitrogen or hydrogen and nitrogen at a temperature required for immediate use in a DF or HF laser which uses F atoms as the fuel. The decomposition temperature of the catalyst bed is maintained by a hypergolic reaction produced from reacting a fuel selected from the group consisting of hydrazine, methylhydrazine, 1,2-dimethylhydrazine, and blends of the same with an oxidizer selected from the group consisting of inhibited red fuming nitric acid, dinitrogen tetroxide, chlorine trifluoride, and chlorine pentafluoride. A laser employing ammonia free decomposition products of hydrazine and ammonia produced at a temperature between about 500 C. and 900 C. operates at a higher power output. When NH3 is present in the H2 and diluent gas, N2, a decrease of 20% in the output is experienced for each 1-2% NH3 up to about 8% concentration. (Author)

Descriptors :   *Patents, *Gas generating systems, *Nitrogen, *Hydrogen, *Catalysts, *Deuterium, Hydrogen fluoride lasers, Deuterium compounds, Fluorides, Chemical lasers, Iridium, Nickel, Niobium, Hydrazine, Hydrazine derivatives, Ammonia, Pyrolysis, Decomposition

Subject Categories : Inorganic Chemistry
      Lasers and Masers
      Hydraulic and Pneumatic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE