化工原理课程设计说明书题 目:400 吨/天四组份轻烃分离精馏塔设计 学生姓名:王合文学 号:专业班级:化学工程与工艺卓越 11-1 班指导老师:李军2024 年 9 月 3 日化工原理课程设计任务书一 、题 目设计一连续操作精馏装置,用以分离 轻烃 混合物。二、原 始 数 据1、原 料处理量 400 吨/天组成(质量分率) iC 4:, nC 4: , i C 5: , nC 5:。进料状态(气化分率) 2、 产品要求塔顶产品 nC 4 收率 % 塔底产品 i C 5 收率 % 摘要:首先需进行全塔的初步物料衡算。由设计任务书知,精馏任务的轻关键组分为 B,重关键组分为 C。注意到两关键组分相邻,同时分离程度的要求也较高,因此可采纳清楚分割的方法进行初步物料衡算。在清楚分割的条件下,塔顶产品由 A、B、C 组成,塔底产品由 B、C、D 组成。 塔顶塔底操作压力由所选的冷凝剂确定,因水和空气最廉价易得,因此,精馏操做中,常用水和空气为冷凝剂。此次设计以水为冷凝剂所以冷凝罐的温度一般取值 40-50℃。关键词:轻烃分离、工艺计算、设备计算Abstract: preliminary material balance first need full tower calculation. By the design task book knowledge, light key rectification task is divided into B, heavy key component is C. Pay attention to two key components of adjacent, at the same time separation degree requirement is very high, so the method can be used to clear division of material balance. In the clear division of the conditions,the product by A, B, C, B, C from the tower bottom product, D.The top of the tower bottom operating pressure is determined by the condensing agent selected, due to the water and air is the most inexpensive, therefore,commonly used in distillation operation, water and air as condensing agent. The design of the water as condensing agent so condensate tank temperature of 40-50 ℃ value.Keywords: light hydrocarbon separation, process calculation, calculation目录第一章 前言.........................................................1一 . 化工原理课程设计的目的与要求...