發(fā)布時(shí)間：2018-05-12 07:30

  本文選題：Kaibel分壁精餾塔 + 強(qiáng)化Petlyuk分壁精餾塔　； 參考：《石油學(xué)報(bào)(石油加工)》2017年01期

【摘要】：Kaibel分壁精餾塔(KDWC)和強(qiáng)化Petlyuk分壁精餾塔(PDWC)可在一個(gè)塔內(nèi)實(shí)現(xiàn)四元體系混合物(MEPB)的高效分離。以分離甲醇(M)、乙醇(E)、正丙醇(P)和正丁醇(B)為研究對(duì)象,建立并優(yōu)化了KDWC和PDWC塔的嚴(yán)格穩(wěn)態(tài)精餾模型。結(jié)果表明,與常規(guī)正序三塔序列分離過(guò)程相比,KDWC可減小再沸器負(fù)荷36.46%,PDWC可減小再沸器負(fù)荷45.95%。在KDWC預(yù)分餾段內(nèi)需實(shí)現(xiàn)ME/PB的清晰分割,主塔上、下段分別需要實(shí)現(xiàn)M/E和P/B的清晰分割;在PDWC預(yù)分餾段內(nèi)僅需實(shí)現(xiàn)M/B的清晰分割,中間塔的上、下段分別需要實(shí)現(xiàn)M/P和E/B的清晰分割,M/E和P/B的清晰分割由主塔上、下段完成。KDWC和PDWC主塔內(nèi)各組分均不存在返混,但在2個(gè)分壁精餾塔的預(yù)分餾段和PDWC的中間段存在中間組分的返混現(xiàn)象。
[Abstract]:Kaibel fractionation column (KDWC) and enhanced Petlyuk fractionator (Petlyuk) can achieve the high efficiency separation of quaternary system mixture in a single column. The strict steady-state distillation model of KDWC and PDWC column was established and optimized by using the separation of methanol, ethanolamine, n-propanol (n-propanol) and n-butanol (B) as the object of study. The results show that KDWC can reduce the reboiler load by 36.46 and PDWC can reduce the reboiler load by 45.95 compared with the normal sequence separation process. In the KDWC pre-fractionation section, the clear division of ME/PB is needed, and in the main tower, the lower section needs to realize the clear division of M / E and P / B, respectively; in the PDWC pre-fractionation section, only the clear division of M / B is needed, and the upper part of the middle column is needed. The lower segment needs to realize the clear segmentation of M / P and E / B respectively. The clear division of M / P and P / B is from the main tower, and there is no backmixing in each component in the lower section of the completed. KDWC and PDWC main tower. However, in the prefractionation section and the middle part of PDWC in the two fractionated fractionators, there is a backmixing phenomenon of the intermediate components.
【作者單位】： 華東理工大學(xué)化學(xué)工程聯(lián)合國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(21476081) 上海市教育委員會(huì)科研創(chuàng)新重點(diǎn)項(xiàng)目(14ZZ058) 教育部基本可研業(yè)務(wù)費(fèi)青年探索基金項(xiàng)目(WA1514306)資助
【分類號(hào)】：TQ053.5

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