文档介绍：毕业设计
题目年产160万吨焦炭焦化厂粗苯回收工艺
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2011年5月
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本人的毕业论文(设计)是在指导教师。。。。。。的指导下独立撰写完成的。如有剽窃、抄袭、造假等违反学术道德、学术规范和侵权的行为,本人愿意承担由此产生的各种后果,直至法律责任,并愿意通过网络接受公众的监督。特此郑重声明。
毕业设计作者:
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摘要苯族烃是宝贵的化工原料,随着原油价格的不断增长,粗苯的价格也在不断增长,而焦炭价格稳中有降,因此各焦化企业对焦炉煤气中苯的回收更加重视,粗苯的销售已成为一些企业的主要经济利润来源。焦化厂的粗苯回收工艺主要包括洗苯和脱苯。洗苯塔是填料吸收塔,脱苯塔是板式精馏塔。板式塔为筛板塔,主要参数为,塔高20米,塔径2米,筛孔数目12371,%。辅助设备主要包括:冷凝器、预热器,其中冷凝器采用全凝器。塔附件主要有:接管、群座、人孔。其中进料管采用直管进料管;回流管采用直流回流;裙座采用圆角形,由于裙座内径约800mm,取裙座厚度16mm,考虑到使用再沸器,裙座高度取2m。根据所得数据,绘制筛板式板式塔的CAD图,溢流装置画出放大剖面图,塔顶塔底和人孔部位局部放大。
关键词 160万吨粗苯回收板式塔设备参数 CAD图
外文页
The Technology Process of Crude Benzene Recovery in million tons coke plant every year
Song Jieran directed by Wang Aibing
Abstract Aromatic hydrocarbon is an important kind of chemical raw materials. The priece of oil and crude benzene is growing,but the price of coal is discreasing. So coking enterprise to pays more attention to the recovery of benzene, crude benzene sales has e the main economic profits in some enterprises. Coke's crude benzene recovery process mainly include benzene washing and removing The washing benzene tower is an absorption tower,and removing benzene tower is a plate column. While the plate column is a sieve-plate main parameters for sieve-plate column is that the height of the tower is 20 metres , the width of the tower is 2 meters, the number of sieve hole is 12371,the opening rate of sieve-plate column is %. Subsidiary equipment mian includes: condenser,and preheater, while the condenser adopts whole coagulation accessories of sieve-plate column mainly includes: take over, crowd subside, the channel of anticipate is a straight conduit ,.the backward flow conduit is direct current backward flow ; the crowd subside is round shape, because of crowd subside diameter,is 800mm,taking the thickness of crowd subside is 16mm, consider using the again boiling installation the height of crowd subside is 2 me