The cracking characteristics of n-heptane, methylcyclohexane (MCH), and toluene under supercritical conditions have been examined using a bench-scale flow reactor. At 700 °C and 55 bar pressure, the cracking percentage of n-heptane, MCH, and toluene is about 31%, 20%, and 2.5%, and the coke deposition rate of n-heptane, MCH, and toluene is about 19.1 mg/min, 12.9 mg/min, and 4.5 mg/min, respectively. However, for a fixed value of feed conversion, the coke deposition rate for toluene is higher than the MCH and n-heptane because of condensation polymerization and filamentous coking phenomena. The estimated heat sink capacity of n-heptane and MCH is 987 kJ/kg and 812 kJ/kg, respectively, at 700 °C. Further, the study showed that the experimental data fit well with a first-order kinetic model, and the apparent activation energy of the n-heptane and MCH cracking reactions is about 62 kJ/mol and 93 kJ/mol, respectively.

使用小型流动反应器研究了超临界条件下正庚烷、甲基环己烷 (MCH) 和甲苯的裂解特性。在 700 °C 和 55 bar 压力下，正庚烷、MCH 和甲苯的裂解百分比约为 31%、20% 和 2.5%，正庚烷、MCH 和甲苯的结焦率约为 19.1分别为毫克/分钟、12.9 毫克/分钟和 4.5 毫克/分钟。然而，对于固定的进料转化率，由于缩聚和丝状焦化现象，甲苯的焦炭沉积速率高于 MCH 和正庚烷。在 700 °C 时，正庚烷和 MCH 的估计散热器容量分别为 987 kJ/kg 和 812 kJ/kg。此外，研究表明，实验数据与一级动力学模型非常吻合，