【摘要】 利用Petro-SIM炼油模拟软件对某催化裂化装置的反应和分离系统进行全流程模拟,在所建立模型能准确模拟原生产流程的基础上,进一步分析了循环入提升管的粗汽油流量和反应温度对产品分布与性质的影响趋势,探讨了反应器操作温度对生产效益的影响,在最优操作条件下优化了整个换热网络。实验结果表明,最优粗汽油循环量为10 t/h,此时原料裂化程度最深,生产状况最佳;反应温度的升高可促进重油裂化,但增加生产能耗,综合考虑能量系统集成和产品变化,确定反应温度最优值为480℃;换热网络优化后,每小时可副产1 MPa饱和蒸汽5.39 t,冷却水消耗降低6.16%,节能效果显著。更多还原

【Abstract】 The whole process of the reaction and separation system of a catalytic cracking unit was simulated by Petro-SIM oil refining simulation software. On the basis that the established model could accurately the original production process,the influences of recycled crude gasoline and reaction temperature on the distribution and properties of products were further analyzed,the influence of the operating temperature on the production profit was discussed,and the heat exchanger network was optimized under the optimal operating condition. The results showed that the optimal recycle flow rate was 10 t/h,at which the degree of feed cracking is deepest and the production is optimal. Although an increase of the reaction temperature could promote the cracking of heavy oil,the energy consumption would increase correspondingly. Considering both the heat exchanger network integration and product variation,the optimal reaction temperature was identified to be 480 ℃. After the heat exchange network was optimized,5.39 t saturated steam(1 MPa) could be generated as the byproduct,and the cooling water consumption could be reduced by 6.16%. The energy-saving effect is remarkable.更多还原