Acetylene Solubility in High-Energy-Density Fuels Enhanced by Amines and Scrambled Cages

Resumo

High-energy-density (HED) fuels are widely used in aerospace engines bit suffer front slow trance and incomplete combustion. A proposed solution to this problem is dissolution of a flammable small-molecule additive, a g., acetylene, in the fuel. The solubility of acetylene in HED fuels JP-10 and QC at 298.15 K and pressure from 0 to 200 kPa was studied. The molar concentration of acetylene in JP-10 and QC fuels or a pressure of 100 kPa reached 0.60 and 0.75%, respectively. Studies of the dissolution of acetylene in the presence of Et₃N and scrambled cages (1, 2, and 5 mass%) showed that such additives could increase significantly the solubility of acetylene in the fuel. The research results are of practical interest for improving the efficiency of HED fuels.