Abstract The effects of tetralin as an H-donor on the reactivity of asphaltenes in a petroleum pitch were investigated under thermal cracking or catalytic hydrocracking conditions at 693 K and 10.0 MPa N2 or H2. Reaction temperatures, pressures, and tetralin contents were varied to examine the reactivity of asphaltenes. Thermal cracking of the petroleum pitch led to a considerable amount of coke formation, close to 53.7 wt%, but the addition of tetralin reduced the coke formation down to 23.6 wt%. The coke formation was considerably reduced to 10.3 wt% in the catalytic hydrocracking condition, and was not formed in the presence of tetralin. Kinetic studies on the catalytic hydrocracking of petroleum pitch in the absence or presence of tetralin demonstrated that the addition of tetralin, showing an increase in the hydrogen transfer capacity, contribute to the marked performance of hydrocracking of the petroleum pitch in the presence of dispersed MoS2 catalyst.

中文翻译：

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四氢化萘促进沥青质转化用于石油沥青加氢裂化

摘要 在 693 K 和 10.0 MPa N2 或 H2 的热裂化或催化加氢裂化条件下，研究了四氢化萘作为 H 供体对石油沥青中沥青质反应性的影响。改变反应温度、压力和四氢化萘含量以检查沥青质的反应性。石油沥青的热裂解导致大量焦炭的形成，接近 53.7 wt%，但四氢化萘的加入将焦炭的形成减少到 23.6 wt%。在催化加氢裂化条件下，焦炭的形成显着减少至 10.3 重量％，并且在四氢化萘存在下不会形成焦炭。在四氢化萘不存在或存在下对石油沥青催化加氢裂化的动力学研究表明，加入四氢化萘会增加氢转移能力，