硝基氯苯生产中下脚低油精馏塔的设计  

Design of distillation column for low-boiling waste formed in nitrochlorobenzene production

作　　者：姚银春[1] 

机构地区：[1]江苏扬农化工集团有限公司,江苏扬州225009

出　　处：《氯碱工业》2017年第4期30-33,42,共5页Chlor-Alkali Industry

摘　　要：硝基氯苯精馏塔塔顶得对位产品(摩尔分数80%),塔釜出邻位成品,塔顶对位产品结晶时会产生约30%低油(主要成分是对、邻、间硝基氯苯)。通过工艺计算、PROⅡ验算,设计低油精馏塔,对大量低油进行处理,产品收率和经济效益显著提高。Distillation tower of nitrochlorobenzene produced top product with p-nitrochlorobenzene mole fraction of 80%, and bottom product o- nitrochlorobenzene. When top product p-nitrochlorobenzene crystallized, about 30% low-boiling oil mainly composed of p-, o-, m-nitrochlorobenzene was obtained. A distillation column for the low-boiling oil was designed through process calculation and PRO Ⅱ check. A large amount of low boiling oil was treated with benefits. significantly increased product yield and economic

关 键 词：硝基氯苯 下脚低油 精馏塔 收集器 分布器 

分 类 号：TQ246.13[化学工程—有机化工]