毕业设计（届）题目:10万吨/年粗苯精馏的工艺设计学院专业年级学生学号学生姓名指导教师10万吨/年粗苯精馏的工艺设计宁夏大学化学化工学院（化学工程与工艺）专业届摘要:苯、甲苯和二甲苯(BTX)是基本的有机化工原料，广泛用于合成橡胶、塑料、纤维、燃料、医药、农药和炸药的生产，是一种重要的化工材料。由于粗苯是一种初级化工品，成份混合而复杂，不能直接用于化工生产，也不能直接被用户最终消费，就产生了粗苯精制。粗苯的精制方法有酸洗法和加氢精制法。本文依据国外先进的环丁砜低温加氢精制的工艺生产路线，对年生产能力为10万吨的粗苯精馏工艺设计的全过程进行了物料和能量的衡算；对纯苯精馏塔进行了工艺设计。关键词:设计；粗苯；精馏塔100,000tons/yearbenzenedistillationprocessdesignAbstract：Benzene,tolueneandxylene(BTX)arebasicorganicchemicalrawmaterials,whichareusedwidelyinsyntheticrubber,plastic,fiber,fuel,medicine,pesticideanddynamite.Theyareimportantchemicalmaterials.Becausebenzeneisaprimarychemical,theingredientismixedandcomplex,soitcannotbedirectlyusedforchemicalproductionandtheultimateconsumer.Itneedtoproducethecrudebenzolrefining.Themethodsofcrudebenzenerefiningarepicklingmethodandhydrogenationmethod.Thisarticleisbasedontheadvancedlow-temperaturehydrogenationsulfolaneprocessproductionline.Tothewholeprocessofdistillationprocessdesignforannualoutputof100,000tonscrudebenzene,Ihavethematerialandheatbalancecalculationandtheprocessdesignforbenzenedistillationcolumn.Keywords:design,Benzene,Distillation目录第一章概述..............................................................................................................11.1前言....................................................................................................................11.2粗苯总概述.......................................................................................................11.3生产路线的确定及生产流程图.......................................................................41.4环丁砜法粗苯加氢精制工艺简介...................................................................5第二章系统物料和热量衡算..............................................................................82.1系统物料衡算....................................................................................................82.2热量衡算.........................................................................................................12第三章纯苯精馏塔的工艺设计.......................................................................163.1设计计算..........................................................................................................163.2流体力学验算..................................................................................................193.3塔板负荷性能图..............................................................................................213.4精馏塔塔板数计算..........................................................................................24第四章结论............................................................................................................28参考文献...................................................................................................................29致谢..........................................................................................................................30第一章概述1.1前言化工设计是科学与技术相结合的一项工程，是将实验的研究成果转化为工业生产的一项具有创造性的劳动。...
