350万吨年辽河原油掺炼凝析油蒸馏装置工艺设计 毕业论文.doc

350万吨/年辽河原油掺炼凝析油蒸馏装置工艺设计 摘 要 本设计为350万吨/年辽河原油掺炼凝析油加工方案只对常压蒸馏部分进行工艺计算55％C5至C11+烃类的混合物，是生产溶剂油的优质原料。 本设计计算部分包括常压塔参数的确定塔板的设计塔板水力学计算.2米。经过校核，塔顶温度为132℃，常一线抽出温度为230℃，常二线抽出温度为290℃，常三线抽出温度为340 ℃3.5 million tons / year Liaohe crude oil blending condensate distillation unit process design ABSTRACT This design is a 3.5 million tons / year Liaohe crude oil blending condensate processing program. This design only contains process calculation of the atmospheric distillation section. .Liaohe Oilfield has a complex geological structure, it has abundant reserves of heavy low condensate naphthenic base crude oil and it can product all kinds of high quality asphalt. Condensate is a kind of the super-light crude oil, whose major component is naphtha. It usually contains the naphtha fraction of about 55%, and its main ingredient is a mixture of C5 to C11+ hydrocarbons, high-quality raw materials for production of solvent oil. Computational part of this design includes the parameters of the atmospheric tower design of the tray, tray hydraulics calculation. The atmospheric tower has 40 trays. Three side lines are located on the 9th floor, 20th floor and 29th floor. Their products are kerosene, light diesel oil and heavy diesel oil. The atmospheric tower has two intermediate circulating refluxes which are located on 11-13th and 22-24th floor. The top of the tower takes 50% of the reflux heat, the atmospheric tower’s first intermediate circulating reflux takes 20% and the second takes 30%. After calculation, the height of the tower is 26.33 meters and the diameter of the tower is 4.2meters. After checking, the temperature of the tower top is 132℃, the temperature of the first sideline is 230℃, the temperature of the second sideline is 290℃, and the temperature of third sideline is 340℃. The error meets the requirements. After tray hydraulics calculation, the plate load characteristic diagram is drawn and calculates the operating flexibility is 3.42.The result of the design can meet the techn