重苯加氢轻质化实验研究

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℃。

Study on Hydrogenation Process for Heavy Benzol Conversion to Light Fraction under Laboratory Conditions

The process of the fraction of heavy benzol above resonance reaction device. The effects of the reaction condition, the type and amount of the catalyst, on the hydro-upgrading 200 ℃ conversion to light fraction was studied by using including reaction temperature, initial H2 pressure, and 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.