課程設(shè)計(jì)--精餾塔分離苯-甲苯混合物-展示頁(yè)
2025-01-22 19:14本頁(yè)面
【正文】 物的分離，采用連續(xù)精餾過(guò)程。實(shí)現(xiàn)原料混合物中各組成分離該過(guò)程是同時(shí)進(jìn)行傳質(zhì)傳熱的過(guò)程。武漢工程大學(xué)郵電與信息工程學(xué)院課程設(shè)計(jì)說(shuō)明書(shū)目 錄摘要 IIAbstract III引言 1第一章 概述 1 2 2第二章 精餾塔設(shè)計(jì)計(jì)算 3 3 4 5 10第三章 塔附屬設(shè)備選型及計(jì)算 29 29 30 32第四章設(shè)計(jì)結(jié)果匯總 35設(shè)計(jì)小結(jié)與體會(huì) 37符號(hào)說(shuō)明 38參考文獻(xiàn) 40摘要化工生產(chǎn)中所處理的物料，中間產(chǎn)物，粗產(chǎn)品幾乎都是由若干組分組成的混合物，而且其中大部分都是均相物質(zhì)，生產(chǎn)中為了滿足儲(chǔ)存，運(yùn)輸，加工和使用的需求，時(shí)常需要將這些混合物分離較純凈或幾乎純態(tài)的物質(zhì)。精餾是分離液體混合物最常用的一種單元操作, 利用液相混合物中各相分揮發(fā)度的不同，使揮發(fā)組分由液相向氣相轉(zhuǎn)移，難揮發(fā)組分由氣相向液相轉(zhuǎn)移。本設(shè)計(jì)任務(wù)為精餾塔分離苯甲苯混合物。設(shè)計(jì)中采用泡點(diǎn)進(jìn)料，將原料液通過(guò)預(yù)熱器加熱至泡點(diǎn)后送人精餾塔內(nèi)。該物系屬易分離物系，最小回流比較小。本設(shè)計(jì)說(shuō)明書(shū)以通過(guò)物料衡算，熱量衡算，工藝計(jì)算，結(jié)構(gòu)設(shè)計(jì)和校核等一系列工作來(lái)設(shè)計(jì)一個(gè)具有可行性的合理的篩板塔以及相關(guān)輔助設(shè)備的計(jì)算。關(guān)鍵詞：篩板塔；苯；甲苯AbstractIn the chemical production processes the material, the intermediary product, the primary product, nearly is the mixture which is posed of certain ponents, moreover majority is the homogeneous phase material, in the production to satisfy the storage, the transportation, the processing and the use need, often needs these mixture separation for pure or nearly the pure state material. Separation of distillation is the most monly used liquid mixture of a unit operation, using liquid mixture of all the different points of the volatile, volatile ponents from liquid to gas transfer, difficult volatile ponents from gas to liquid transfer. Mixture of raw materials to achieve the various ponents of the separation process is at the same time heat and mass transfer process. The design task is to separate the benzene toluene mixture using the distillation tower. For the separation of binary mixtures, we can use a continuous distillation process. In the design, we feed the raw material in the bubble point ,using preheater where the liquid can be heated up to the bubble point and then give it away to the distillation tower. Up top of the tower ,there is a total condenser which can condense the steam. Part of the condensed steam return to the tower in the bubble point, and the rest product is sent to the tank through the total condenser. It is so easy to isolate material system using this system. the minimum return is relatively small, so we take the minimum reflux ratio of times of the operating reflux ratio in our design. Tower reacter is heated with indirect steam and the tower bottom product is sent to storage tanks after cooling.The design specification through the material balance, energy balance, technology, structural design and verification and a series of work to design a reasonable possibility of the sieve tower that should use the relation selective evaporation flow，and drawing assemble diagram of distillation tower and PID of distillation.Keywords：Distillation；Sieve tower；Benzene III引 言化工生產(chǎn)常需進(jìn)行液體混合物的分離以達(dá)到提
高考資料相關(guān)推薦
鄂ICP備17016276號(hào)-1