年产30000吨苯工艺设计设计.docVIP

毕业设计说明书 年产30000吨苯工艺设计 学 院：化学系 专 业：应用化工技术 学生姓名：王雪峰 学 号：20100821042 指导教师：杜淼 2013 年 6 月 摘 要精馏过程在能量剂驱动下（有时加质量剂），使气液两相多次直接接触和分离，利用液相混合物中各组分的挥发度的不同，使易挥发组分由液相向气相转移，难挥发组分由气相向液相转移，实现原料混合液中各组分的分离。Abstract Tower equipment is one of the most important types of equipment in the chemical, oil refining production.The design of the valve tower is the chemical production of gas-liquid mass transfer equipment.This design to analyze the distillation of binary systems, select, computing, accounting, graphics, etc., is more complete distillation of the design process, the design method is a wide range of engineering and technical personnel using.Separation equipment of the design document for benzene and toluene - the float valve distillation column to do a more detailed description, including: process calculation, auxiliary equipment, computing, photos of the tower equipment. Distillation process in the energy agent-driven (and sometimes increase the quality of agent), the gas-liquid two-phase many times in direct contact and separation Volatility of each component in the liquid mixture of different volatile components from liquid to vapor transfer, difficult volatile components by gas-liquid phase transfer and separation of each component in the raw material mixture. The float valve distillation column,20.375 m high tower, tower 1.0 m in diameter, calculate the number of theoretical plates for the 16-by-board. Be considered full-tower efficiency of 0.534. The top of the tower using the condenser, part of the reflux. The rectifying section of the actual plate number 17, stripping segment of the actual board number 17. The actual feeding position in the operating flexibility of the 17 board (from the top), 4.04. Pressure drop, leakage, flooding, entrainment entrainment of fluid mechanics checking, in the safe operating range.Ancillary equipment in the tower, all pipelin