CAJ | 학술논문

利用 AspenPlus 软件对常规的两塔间接序列精馏工艺分离氯化亚砜进行了模拟计算，并提出了一种新型分离工艺-隔板精馏塔工艺。通过对隔板精馏塔的模拟计算，研究了预分离段进料位置、侧线采出位置、回流进料比和分配比对产品纯度和再沸器能耗的影响，结果说明最佳的工艺条件为：预分离段第6块板进料，主塔第55块板采出，回流进料比为4．45，液相分配比为1．60，汽相分配比为1．98。将隔板塔在最佳操作条件下的能耗与常规两塔工艺操作能耗和设备投资进行比较，隔板精馏塔节约冷凝器负荷和再沸器负荷分别为34．62％和34．64％；然后运用专业的设备投资计算软件 CAPCOST 计算2种工艺设备投资，结果表明，隔板精馏塔新工艺可以降低17．27％的设备投资。综上可知隔板精馏分离氯化亚砜是一种节能、高效的新型分离工艺。
이용 AspenPlus 연건대상규적량탑간접서렬정류공예분리록화아풍진행료모의계산，병제출료일충신형분리공예-격판정류탑공예。통과대격판정류탑적모의계산，연구료예분리단진료위치、측선채출위치、회류진료비화분배비대산품순도화재비기능모적영향，결과설명최가적공예조건위：예분리단제6괴판진료，주탑제55괴판채출，회류진료비위4．45，액상분배비위1．60，기상분배비위1．98。장격판탑재최가조작조건하적능모여상규량탑공예조작능모화설비투자진행비교，격판정류탑절약냉응기부하화재비기부하분별위34．62％화34．64％；연후운용전업적설비투자계산연건 CAPCOST 계산2충공예설비투자，결과표명，격판정류탑신공예가이강저17．27％적설비투자。종상가지격판정류분리록화아풍시일충절능、고효적신형분리공예。
The indirect sequence as a conventional process was simulated by using Aspen Plus software for the separation of thionyl chloride.And divided wall column (DWC)was proposed as an innovative process to separate thionyl chloride.Furthermore,the effect of feed stage,side draw stage,the ratio of reflux rate to feed and distribution ratio on the product purity and reboiler duty was discussed.The optimum operating conditions determined are as follows:the feed stage is the 6th tray of pre-fractionator,the side draw stage is the 55th tray of main column,the ratio of reflux rate to feed is 4.45,the liquid distribution ratio is 1.60,and the vapor distribution ratio is 1.98.The results show that DWC operated in optimal conditions can save condenser duty and reboiler duty by 34.62% and 34.64% respectively,compared with the conventional indirect sequence.Meanwhile,DWC can save capital cost by 17.27% from the calculating result of CAPCOST software.So DWC for the separation of thionyl chloride is an energy saving and efficient separation technology.