The process of the fraction of heavy benzol above 200 ℃ conversion to light fraction was studied by using resonance reaction device.The effects of the reaction condition,including reaction temperature,initial H2 pressure,and the type and amount of the catalyst,on the hydro-upgrading process were investigated.The results showed that both ammonium molybdate and Ni-Mo catalysts have good catalytic effects on the hydrogenation process for heavy benzol conversion to light fraction.Under the same reaction conditions,the catalytic effect of the Ni-Mo catalyst was better than that of ammonium molybdate catalyst.As the sample oil was 5 mL,over the Ni-Mo catalyst,the best reaction conditions were as follows:0.15 g of catalyst,7 MPa of initial H2 pressure,and 450 ℃ of reaction temperature.%利用管式反应釜共振反应装置,研究了某焦化厂重苯200℃后馏分的加氢轻质化反应.考察了催化剂种类及用量、反应温度、氢初压等工艺条件对重苯轻质化的影响.结果表明,使用钼酸铵、Ni-Mo催化剂时,均能起到加氢轻质化的效果,其中Ni-Mo催化剂的催化效果优于钼酸铵.最佳的工艺条件为使用Ni-Mo催化剂、催化剂用量2％～3％、氢初压7 MPa、反应温度450℃.
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