NP-Ni pyrolant

NP pyrolant is caused by incomplete combustion at about 4 MPa and that the increased of the NP-Ni pyrolant is caused by a catalytic effect on the gas-phase re-... 

The heats of explosion, of the pyrolants are shown as a function of pressure in Fig. 12.3. It is evident that H p of the NP pyrolant is increased by the addition of nickel particles in the low-pressure region below about 2 MPa. The measured of the NP-Ni pyrolant becomes less pressure-dependent and reaches approximately 97 % of the theoretical value. The results indicate that the lower value of H p of the NP pyrolant is caused by incomplete combustion at about 4 MPa and that the increased H p of the NP-Ni pyrolant is caused by a catalytic effect on the gas-phase reaction which increases the temperature. The gas-phase reduction of NO to N2 in the dark zone of the NP pyrolant in the low-pressure region is promoted by the addition of the nickel particles. 

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