Table 5. Effect of Various Additives on Coke Susceptibility for Various Fuelsa.
| fuel name | additive name | additive loading (ppm) | temp (°C) | pressure (bar) | coke amount (mg/cm2) | references |
|---|---|---|---|---|---|---|
| n-heptane | no additive | 655 | 37 | 2.630 | (61) | |
| n-heptane | diphenyl selenide | 300 | 655 | 37 | 0.200 | (61) |
| JP-8 | no additive | 675 | 38 | 0.500 | (62) | |
| JP-8 | tetralin and tetralone | 20,000 | 675 | 38 | 0.300 | (62) |
| JP-8 | no additive | 280 | 26 | 0.032 | (63) | |
| JP-8 | DTBMP | 16 | 267 | 30 | 0.015 | (63) |
| JP-8 | 2-methoxyethanol | 480 | 267 | 26 | 0.030 | (63) |
| JP-8 | DSPDA | 5.7 | 267 | 26 | 0.001 | (63) |
| JP-8 | no additive | 363 | 38 | 0.017 | (64) | |
| JP-8 | proprietary material | 256 | 363 | 38 | 0.007 | (64) |
| JP-8 | no additive | 675 | 38 | 0.023 | (65) | |
| JP-8 | DCP | 100 | 675 | 38 | 0.003 | (65) |
| JP-8 | DCP | 200 | 675 | 38 | 0.009 | (65) |
| n-heptane | no additive | 560 | 37 | 0.058 | (66) | |
| n-heptane | proprietary material | 8600 | 560 | 37 | 0.025 | (66) |
| JP-8+100 | no additive | 600 | 51 | 0.006 | (66) | |
| JP-8+100 | decalin | 10,000 | 600 | 51 | 0.004 | (66) |
| JP-8+100 | tetrahydroquinoline | 10,000 | 600 | 51 | 0.011 | (66) |
a
DTBMP: 2,6,di-tertiary-butyl-4-methylphenol; DSPDA: N,N-disalicylidiene-1,2-propane diamine; DCP: dicyclohexylphenyl-phosphine.