反应条件对FCC汽油芳构化的研究

Effects of Reaction Temperature on the Aromatization Reaction of FCC Gasoline

以兰炼催化汽油为原料，采用小型固定流化床为芳构化反应装置，考察了反应条件对芳构化产物产率、转化率、MON和RON和液体产品组成的影响规律．实验结果表明，随着反应温度的升高，干气、液化气和焦炭产率呈上升趋势，而汽油和柴油产率呈下降趋势；随着空速的增加，干气、液化气和焦炭产率基本上呈缓慢下升的趋势，而汽油和柴油产率基本上呈缓慢上升的趋势；随着剂油比的提高，干气、液化气和焦炭产率逐渐增大，汽油和柴油产率逐渐减小；随着水油比的加大，汽油、柴油和焦炭产率和产品的马达法辛烷值（MON）和研究法辛烷值（RON）逐渐减少，干气和液化气产率变化不大．确定了兰炼FCC汽油的实验室的最佳操作备件为反应温度430～450℃、空速20～30h、刺油比6～9，水油比为0．05左右．

By using Lanlian catalytic gasoline as a feedstock, the effects of reaction conditions on the aromatization product yield, conversion, MON, RON and solvent product compound were researched in a confined fluidized bed reactor, The experimental result showed that with increasing reaction temperature, off-gas, liquefied petroleum gas and coke＇s yield increased, but gasoline and diesel oil＇s yield dropped and its yield firstly increased; the yield of off-gas, liquefied petroleum gas and coke gradually increase with the increase of catalyst to oil, but the yield of gasoline and diesel oil decrcase with the increase of catalyst to oil; the yield of gasoline, diesel oil and coke and MON and RON gradually decrease with the increase of water to oil, but the yield of off-gas and liquefied petroleum gas remain no change. The good operation condition will be confined： reaction temperature is 430 - 450℃, WHSV is 20 - 30 h^-1, catalyst to oil is 6 - 9 and water to oil is 0.05.