青海大学《化工过程设备设计Ⅱ》设计说明书设计题目：年产×103t乙酸乙酯反应器设计班级：2013级化工2班姓名：邬天贵学号：30前言乙酸乙酯，又称醋酸乙酯，分子式C4H8O2。它是一种无色透明易挥发的可燃性液体，呈强烈清凉菠萝香气和葡萄酒香味。乙酸乙酯能很好的溶于乙醇、氯仿、乙醚、甘油、丙二醇和大多数非挥发性油等有机溶剂中，稍溶于水，25℃时，1ml乙酸乙酯可溶于10ml水中，而且在碱性溶液中易分解成乙酸和乙醇。水能使其缓慢分解而呈酸性。乙酸乙酯与水和乙醇都能形成二元共沸混合物，与水形成的共沸物沸点为℃，其中含水量为%（质量分数）。与乙醇形成的共沸物沸点为℃。还与%的水和%的乙醇形成三元共沸物，其沸点为℃。乙酸乙酯应用最广泛的脂肪酸酯之一，具有优良的溶解性能，是一种较好的工业溶剂，已经被广泛应用于醋酸纤维、乙基纤维、氯化橡胶、乙醛纤维树脂、合成橡胶等的生产，也可用于生产复印机用液体硝基纤维墨水，在纺织工业中用作清洗剂，在食品工业中用作特殊改性酒精的香味萃取剂，在香料工业中是最重要的香味添加剂，可作为调香剂的组分，乙酸乙酯也可用作黏合剂的溶剂，油漆的稀释剂以及作为制造药物、染料等的原料。目前，国内外市场需求不断增加。在人类不断注重环保的今天，在涂料油墨生产中采用高档溶剂是大势所趋。作为高档溶剂，乙酸乙酯在国内外的应用在持续稳定的增长，在建筑、汽车等行业的迅速发展，也会带动对乙酸乙酯类溶剂的需求。工业生产技术目前全球乙酸乙酯工业生产方法主要有醋酸酯化法、乙醛缩合法、乙醇脱氢法和乙烯加成法等。传统的醋酸酯化法工艺在国外被逐步淘汰，而大规模生产装置主要采用后三种方法，其中新建装置多采用乙烯加成法。本设计采用醋酸酯化法。醋酸酯化法在硫酸催化剂作用下，醋酸和乙醇直接酯化生成乙酸乙酯。该工艺方法技术成熟，投资少，操作简单，但缺点是生产成本高、硫酸对设备腐蚀性强、副反应多、产品处理困难、环境污染严重。目前我国大多数企业仍采用醋酸酯化法生产乙酸乙酯。目录一、工艺设计·························································1原料液的处理量···············································1原料液的起始浓度···············································1反应时间与反应体积············································1二、物料衡算·························································2三、热量衡算·························································3标准反应热···················································3热量衡算·······················································3换热计算·····················································5四、反应釜釜体设计··················································5反应器的直径与高度·············································5筒体的壁厚·····················································7反应釜封头厚度·················································8五、反应釜夹套设计···················································8夹套DN、PN的确定······················...
