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在快速升温和冷却的共振搅拌反应器中,以四氢萘为溶剂,对用山东滕县煤制备的沥青烯进行了加氢裂解试验。反应条件如下:反应温度380—430℃,氢初压9.0MPa,名义反应时间0—27min。试验结果表明,沥青烯加氢裂解的初始阶段为一级反应。计算了初始阶段的反应速度常数和表观活化能;加预硫化Ni-Mo催化剂(3673)时△E为140kJ/mol,不加催化剂时△E为174kJ/mol,与文献结果一致。试验还比较了3673、氧化铁、硫铁矿、德国赤泥和海南岛铁矿等催化剂对沥青烯加氢裂解的催化活性,其顺序为3673(预硫化)>Fe_2O_3+S>Fe_2O_3+Al_2O_3+S,德国赤泥+S,硫铁矿>海南岛铁矿+S。
Hydrocracking of asphaltenes prepared from Shandong Tengxian coal was carried out using tetralin as a solvent in a resonant stirred reactor with rapid heating and cooling. The reaction conditions are as follows: reaction temperature 380-430 ° C, hydrogen initial pressure 9.0MPa, nominal reaction time 0-27min. The experimental results show that the initial stage of hydrocracking of asphaltene is first order reaction. The initial reaction rate constants and apparent activation energies were calculated. The ΔE was 140 kJ / mol for the pre-sulfided Ni-Mo catalyst (3673) and 174 kJ / mol for the ΔF-free catalyst. The experiment also compared the catalytic activity of 3673 iron oxide, pyrite, germany red mud and Hainan Island iron ore catalyst hydrocracking of asphaltenes in the order of 3673 (pre-vulcanization)> Fe 2 O 3 + S> Fe 2 O 3 + Al 2 O 3 + S, Germany red mud + S, pyrite> Hainan iron ore + S.